Caterpillar d4 pony motor

Last UpdatedMarch 5, 2024

by

After many hours I got the pony motor running great, changed the main engine oil and filters and flushed out the fuel tank and line. Jan 25, 2015 · D2 pony motor problems was created by silverstreak. off the parts tractor. 125 inches. 26CUYD CAPACITY, TRACK 30"ES LGP ABR EXT LIFE, RIPPER See More Details. 155 cm. Undercarriage APPROX AT 70% [CATERPILLAR D4] Quantity: 1 Get Shipping Quotes Opens in a new tab Jun 13, 2024 · End. Magneto has broken armature shaft. The D315 was introduced on the D4 6U/7U series in 1947. I can’t turn pony motor or move pinion engagement lever. We rope pull started the Pony D4 Pony Motor Flywheel Stuck - ACMOC Bulletin Board - Antique Caterpillar Machinery Owners Club Sep 18, 2009 · 337. I pulled the electric starter housing, starter, choke/throttle linkage etc. Wheelbase: 61. You can start it with the pinion gear engaged to eliminate the grinding mesh of the gears--just have the clutch handle all the way to the rear to eliminate much of the drag. Thank goodness that the Cat has ROPS. We even tried to soak it in atf and diesel for 2 weeks and tried to pull it in high gear to get the main to turn over. Regareds. 5. Mar 7, 2011 · FREE quarterly magazine filled with content about antique Caterpillar machines. com/channel/UCv_zjUQJ98JgBHcch2PP7Vw/join Feb 16, 2021 · Replied by Steve A on topic pony tank repair. We first marked the holes for the Honda 6. Touch them with a flat blade screwdriver to see if they have strong May 20, 2012 · daves--i have read that the Auto 386 and the NGK A6 are good plugs for the pony. Mar 3, 2023 · #B1008-007, 2-Cylinder Tailored Spark Plug Wire Set for Caterpillar D2 & D4 Early Industrial Equipment Default Image: Original Wire Set The Brillman Company Spark Plug Wire Sets come fully assembled with the proper type wire & terminals. Dan. #1. I'm new to these things so i'll try to explain best I can. Blending a D25U core pony with a D4 factory pony electric start, to go on a D25J. Email Seller Video Chat. Caterpillar first introduced the RD4 in 1936, [1] as the diesel follow on to the successful CAT 30 gas model. Re: D4 Pony Motor Swap to Electric Starter in reply to Cactus67, 02-06-2005 19:00:29. I used my 5U series Cat D2 to demonstrate the procedure. Camshaft timing is an entirely different Feb 14, 2024 · Phone: (689) 293-3558. Apply for Financing. I currently have Champion J8C plugs in and they are 14mm with a 3/8 inch Apr 7, 2023 · This is gwoods again with more questions about the d4 7u (7U11300). The lengths I give will suit a machine with Cat hydraulic or cable blade so you can Re: D4 CAT PONY MOTOR STARTING INSTRUCTIONS in reply to Horaceturlock, 05-20-2006 11:46:39 I'm not familiar with that horizontal opposed starting engine, however the principles of operation are likely to be similar. and bleed the injectors to get it to run. Jan 24, 2008 · Hello All, My cousins D4/7U#15195 has a problem with the pony motor. Full dimensions and tracks Oct 22, 2020 · I know every must get sick of reading these but I was hoping to get some input on where to go for obsolete parts. Mar 9, 2022 · Join this channel to get access to perks:https://www. Report to Moderator. Using an oil can put approximately 2 tablespoons of oil into the lower portion of the pulley. It also is getting gas into crank case. 1942 R4 6G2550SP. Nov 9, 2007 · The instructions for mounting are: 1. youtube. May 4, 2022 · Yeah, the film I had of the carb rebuild is junk. egg harbor NJ. Thanks Feb 5, 2022 · Join this channel to get access to perks:https://www. Rub them with some 320 wet or dry until they're shiny. Let's see if we can still drive the tractor with just the pony motor running! Aug 1, 2014 · I recently purchased 7U 43,159. Now we offer conversions for D2, D4, D6, D7, D8, RD6, Crawlers, 212, 112, 12, 14 motor graders, #6 shovels, 933 track-loaders. Caterpillar D4. derosnopS. . They were and still are an excellent, hot magneto. The pony will still fire up and run. This information is from a Caterpillar Technical Partsgram issued in May 1966. I bought a 1947 D4 7U that has about 1200 hours on the meter. View Details. Cat Caterpillar D2 D4 D3400 D4400 D111 D115 Pony Motor Front Main Seal Guard. Burt Lade said: The outside temp was 70 degrees F. TDC seems to be with the starting cord V in the vertical position as gauged by the rush of Aug 23, 2022 · Dimensions & Tracks. Turn the magneto impulse coupling until the X mark on the tang is in such a position as to line up with the mark on the magneto drive. Buy It Now. It had been sitting for a while and the motor was frozen. We just can't get it to engage or the main engine to turn by hand. $375. Rust is built up around the end of the crankshaft where the nut is on the flywheel. 99 shipping. #3. I have tried it on the workbench with a drilling machine and i get spark´s at 2000 rpm but not below. Cat D6 5R. but there are advantages. some have attached to the rear tire of lawn mower and mowed the lawn. $44 /year ELECTRONIC. Locate the X mark on the starting engine magneto drive. The pony worked great for a long time. Caterpillar Model D4 was produced from 1939-1959 with 84,497 made. remove the retaining screws and pull the cap away from the pulley 1/2" keep the weights in a vertical position to keep the weight pins from falling out. 4-cylinder. Apr 9, 2010 · The starter then just bolts right on. This D4 does not have headlights for night operation. Re: D4 5T CAT runs great but HARD TO START. D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take This is the startup sequence for most Cat D2 and D4 tractors equipped with a starting engine. I removed the magneto to have it serviced as I was lacking spark on one side. It came from the factory with a rope start pony engine. MJK Ed A,B,C Service Manual. L. com/channel/UCv_zjUQJ98JgBHcch2PP7Vw/join Re: D4 pony motor parts in reply to Shane, 08-10-2003 21:47:45. Mar 13, 2017 · I decided to start on the 1949 D4 7U and the first thing to repair was the pony motor fuel tank. 5hp petrol motor so it would slide on springs located underneath. The D4 started out at 35 horsepower, and in later years was upgraded to 43 horsepower. 220-12197 Helical Drive Caterpillar Conversion Pony Motor Right Angle 11 Tooth. You can see the corroded long brass Sep 10, 2023 · A friend of mine and I are still trying to rescue a D4 7U - the first challenge was the starter pinion clutch as it was all seized up. Check coil & condenser in the magneto and test for spark before you put back as this and the carb are normally the headaches in the Pony motor. Caterpillar D4 photos Dimensions & Tracks. A "Head Set" and a "Lower Set" together make a "Full Set". I could not complain on it until it started bothering on the last job the machine was on with the pony motor. Inframe Gasket Set: This gasket set is used when a engine overhaul is done in chassis. The four fuel injectors and the pony motor at the rear of the diesel can be seen. 1942 D4 7J9915SP. Ours is No 15689 a 1951 model. Fortunately, there is a much better series on how to rebuild it (Zenith TU-4C). On the top where the pony engine was I also installed a plate with a gasket underneath to seal up the coolant port. ACMOC store discounts and specials. Parts Only. Fits the Following Tractors. The Caterpillar D4 track-type tractor is a small bulldozer manufactured by Caterpillar Inc. org. liquid-cooled. Weight: 11020 to 11425 pounds. Remove the 2 screws that hold the bowl on, and gently pull the fuel bowl horizontally as mentioned earlier. try and locate a running pony or one that doesnt need rebuild. $3,500. Lars. @squatch253 Sep 27, 2021 · Replied by trainzkid88 on topic D4 7U direct start conversion. etc, and the pony motor started for the first time in 19 years! After it started I noticed that there was no way to control the throttle with the pull handle. C $164. Aug 14, 2017 · This is the first time that I have personally seen everything working exactly as advertised on the very first try! The pony motor started on the very first fits Caterpillar Tractor Company industrial gas engines for models: D2, D4, E34, E40, 944, 955, 966, D4600. you shouldn't have to hold the handle. Later I restarted the D4 to bunch up the fire again. The problem is the magneto who don´t give any sparks. I heard somewhere that a gas pony engine was available as an option from Cat on the bigger dozers through the late '80's, but I've never 1107024 Starter Cat Pony Motor 6E2561. Feb 4, 2017 · Hello Gentlemen, Thank you for your time and guidance, Proud owner of a 1950s D47U with both Pony motor and Diesel running great. Daryl. I've browsed this site and didn't see much info of people using electrolysis for this process and since I've had great luck with it from things as large as engine blocks and as small as motorcycle fuel tanks I figured I'd share the info. Get Shipping Quotes. 3. C. 1959 7U42726-. Here I thought I was going to have to flip the entire tractor over in order to drain out the oil! The thing I circled in my photo, that is the pony motor oil drain. A Caterpillar D4 is seen pulling a load off of a Landing Craft, Medium, during a practice landing in the Pacific Theater. 020 pistons are NLA ( PN 8H2762 or 2F3664). 3%. It fires up with the electric starter on the 3rd revolution but then starts to sputter and pop until he get's the choke set just right. Better still if you use as centrifugal clutch pulley then you can bolts diectly onto the frame. Mar 20, 2014 · Hello All, Can the earlier 4F4823 pony fuel tank from serial# 7U1 to 7U1126 be interchanged with the later 8F8298 pony tank effective with serial# 7U11262? Pony Motor Fuel Tank Interchange on a D4/7U - ACMOC Bulletin Board - Antique Caterpillar Machinery Owners Club May 19, 2019 · D4 pony motor throttle adjustment was created by bexrex So I've did a complete pony carb rebuild, and cleaned fuel lines, new plugs. +$25. 1942 - 1970. 13-inch tracks. Replaces OEM Parts: #DP52442. The D4600/D318 six cylinder used on the D6 uses a little larger pony motor. Mar 14, 2021 · Pony Starting Engine Rope Length. This machine weighed in at around 5 tons, and featured a low speed 4 cylinder Diesel Engine with a 02-16-2005 03:06:49. For me, I found removing the gas fuel bowl allowed the easiest access to remove the 2 nuts holding the carb onto the starting engine. I have it pulled off right now, i was wondering if i could use the machine without it, if d4 pony motor - ACMOC Bulletin Board - Antique Caterpillar Machinery Owners Club This 1950s Caterpillar D4 pony motor hasn’t started in at least 20 years. The machine shop that I have regrinding the crankshaft has asked if I can determine what clearance is needed between shaft and bearing for lubrication purposes. Oct 8, 2022 · Changing oil in a 1947 D4 7U was created by beck6. More. I went to Cat and the . 2. yes it will be costly to rebuild the pony and the mag, but it has advantages especially in cold weather and when it comes to bleeding the fuel system. The less drastic option is to put in a handful it nuts n bolts in it and tumble for hours. I had it sarting on one or two pulls it also has electric start on the pony but the gear/pully is bad that engages the starter. Cat Caterpillar D2 D3400 D4400 D111 D115 Pony Motor Engine Block & Crank *CORE. 17 minutes ago #257502. I have to crank it at least 10 to 15 minutes. Jan 28, 2022 · Replied by Outbackrider on topic D4 7U starting engine carburetor. It is a pleasure to help anyway I can. To lubricate the gov. Nor on the pony side of this bulk head. Take a look at your points and see if they're pitted. Displacement: 350 ci. Dec 21, 2022 · 1945 Caterpillar D4 Crawler Dozer, 88" Blade, Runs & Drives, All Clutches Work, Pull Start Only, Pony Motor Not Running (Pony Motor has compression, but no spark from magneto, it is likely good, but would need magneto or coil conversion to operate), Serial Number 2T8331. from United States. Antique Caterpillar Machinery Owners Club. (ENFIELD, CT) This is for a complete Caterpillar D4 Bulldozer. Greg, there is a pipe plug on the back side, remove it look for "M" and align marks. My recommendations are for D2-4 - 7 feet, and D6 - 10 feet of 1/4" diameter polypropylene sash cord with a minimum tensile strength of 250 lbs. This time the pony motor ran fine with the choke all of the way off. I then bunched up the bunk house into a tight pile and lit it off with a match. They are custom tailored to look & fit like original factory equipment. Brand New. Back around 1973-1974, while working at the CAT house during night shift, we rebuild a magneto and put it on a D8 out in about 0° weather in the dark. 1115 Madison St NE # 1117 Salem, OR 97301. D4. Once it starts, he pushes it in just a skosh to get it to May 31, 2022 · Caterpillar D315. Aug 8, 2009 · Aug 8, 2009. Pony motor from 1951 Caterpillar D4 7U. Re: Cat Apr 15, 2008 · Acquired by the VanNatta's in 1950, this Cat was the main stay of a salvage logging operation in the early 1950's, and after an overhaul and a new set of tracks was again used for logging in the mid 1960's until the Log skidder joined the family. Full dimensions and tracks D4 Serial Numbers. Antique Berling Magneto EQ41 Caterpillar Tractor Parts Unit . for their diesel starting pony motors. 7 L. FREE classified listings. It is an older Caterpiller unit from 1941. Where the pinion gear housing goes I just installed a plate. Caterpillar 220-12197 Helical Drive Caterpillar Conversion Pony Motor Right Angle 11 Tooth. Complete and was running and starting the D4 tractor. Ask Your Own Construction and Road Equipment Question. An auto electrical firm here in Toowoomba in south east Queensland, Australia advertises 24V direct electric start conversions from D2s to D9s from $1200 Aust Dollars. They came in a multitude of configurations including base mount, flange mount, horizontal mount, gear drive, impulse coupled, clockwise Mar 4, 2024 · This is for a complete Caterpillar D4 Bulldozer. May 8, 2024 · This is for a complete Caterpillar D4 Bulldozer. I have had a 20,000 series 7U parts tractor sitting for 16 years. Dec 20, 2008 · Dec 26, 2008. $60 /year USA. #8. One hell of a hot fire followed. Here's a link to the first Sep 27, 2010 · good evening to everybody,I have to rebuild my pony motor on my d4 7u. Oct 2, 2012 · My Cat D4 7U pushing dirt. Free 4 day shipping. The RD4 originally weighed in at 10,000 pounds (4,500 kg), and used Caterpillar's D4400 engine, an inline four-cylinders, with a OEM Carburetor Repair Kit …with Pony start engine on diesel models using Zenith 11681, 12172 carburetors) ]; Replaces: AR13003R, AR13005R, AR13015R, RE528697, RE528699 Carb Mfg #'s - Zenith: 11681, 12172 * This repair kit will also fit Caterpillar D2 and D4 Crawlers; 10, 112 and 212 Auto Patrol Motor Graders with Pony motors… Heavy Equipment Air Intake & Fuel Delivery. When it eventually starts it appears as if it's building up pressure in the crankcase because it pushing the dip After cleaning out the fuel system and carb, and putting new mag wires on my D2 pony motor, I've been able to get it running, but - Page 2 - Results from #10 D2 Pony Motor Carb setup - Page 2 - ACMOC Bulletin Board - Antique Caterpillar Machinery Owners Club - Results from #10 May 19, 2007 · I have a cat d4 that runs great if you pull it to start with a wheelloader but the pony engine doesn´t work. We used a 50+ V pulley belt commonly costing in NZ @ $28. 30. Bore/Stroke: Apr 25, 2009 · D4 magneto timing to Pony was created by auscuscus. $255. I cannot find any timing marks on the flywheel of my 5T pony. Install the magneto with the X marks together and tighten the bolts. This is a GENUINE ZENITH carburetor kit for the following Caterpillar engine models with Zenith TU4C carburetors listed below: (Carburetor identification will either be located on an attached circular stamped metal tag or CAT CATERPILLAR PONY CARBURETOR ZENITH CARB D6 D7 D8 D9 7M6038 5H1227 9H6181. Mar 3, 2023 · Description #B4013-034, American Bosch MJK Magneto Cap for Caterpillar Pony Motors. Opens in a new window or tab. yes they can be cantankerous to start. I am new to owning a Cat and I have several questions about changing the oils. My research shows the D-16 is an 18MM plug with a 1/2 inch reach. As it is now, he has to set the choke almost all the way out to get it to start. Got a D315 pony engine that's been off the machine a few decades and want to tear it down for evaluation. $399. tracks. 2021 CAT D4 LGP for sale. It will leak about about 3-4 ounces in the time it takes to start the main engine. Jan 2, 2009 · Our old D4 was rope start, we had as many gasoline problems as electrical. The shop manual have torque requirements for the pony motor if I remove cylinder heads? I don’t have one as yet. Jul 4, 2018 · Caterpillar RD6/D6 (2H series) pony motor removal sequence, also applicable to the earlier Diesel Thirty Five and Diesel Forty tractors. The D4 seems to be work well and I want to replace all the oil and have several questions. I have direct electric start. cat@acmoc. degibbscontracting2012 (1,594) 100%. It sta I had my seat belt on. 00. zvend2 (23,096) 99. Aug 31, 2021 · The rings are supplied one ring per box so 8 boxes, and for the bearings it is packed two shells in the one box, so 2 required. diesel. 5HP MOTOR TO START THE PONY MOTOR . you need to take cap off mag to see which plug is firing, but it"s very simple. Full Bulletin Board Access. Author's photo added 6-19-2018. After having the carburetor and magneto rebuilt, replaced plugs and wiring, it is real hard to start. Marketplace (For Sale/Wanted) Technical Library. We also have 1-wire alternators for other applications - 6, 8, 12, and 24-volt available. Jul 27, 2022. Feb 14, 2024 · 1949 D4 Caterpillar Dozer with winch, 4 cyl diesel and 2 cyl pony motor Starts with pony motor. I pulled the magneto and after removing the dirt and grime, I wasn't getting any spark from the points. The kits are available for both 12 and 24-volt. May 3, 2020 · Guess it's been asked a hundred times here already, so I might as well ask it 101. D4 Caterpillar Pony Motor Conversion Helical Flywheel. I have measured the resitance i the coil and it´s about 7,2 kohm. The oil return tube inside the pony motor of my D4 cam off and bounced around inside the block and slightly chewed up both pistons. 4, TRIMBLE ACCUGRADE SETUP INSTALLED, HYDROSTATIC TRANSMISSION, VPAT BLADE - 4. D4 7U has a curb weight of 10,510 pounds. Jun 30, 2013 · Jun 30, 2013. Weight. After ordering the necessary gaskets from Cat, I have installed it on the later model tractor. If it was getting fuel, it would start a lot. The magneto was bad and needed rebuilding, but surprising the carb was fine. Sep 18, 2009. and put it on with an impact wrench and now when I start the pony motor oil runs onto the floor panel under the flywheel. I have a D2 5U that was built in 1953. VINTAGE CATERPILLAR TRACTOR PONY MOTOR MJK MAGNETO AMERICAN BOSCH MJK4/2180D319. This set includes a head gasket set and an oil pan gasket set. Bob. Also my Pony Motor mod. The MJK to the best of our knowledge was made exclusively for the Caterpillar Tractor Co. RC-2H H23-190 9B8025 Cat D2 D4 Pony Motor Magneto Cap New Old Stock Eisemann. Feb 13, 2024 · Pony motor D4 7U was created by ropot. The older D-4s have the same carb kit as a John Deere JD 720 and 730 pony motor . 1944 D4 2T6584SP. Our model has a BIRTLEY blade. Jan 14, 2021 · The pony and main engine was turning fine until we shut the pony down then the main engine would not turn anymore. If they're pitted I would replace them. On the top of the head I also put a plug where the coolant from the pony engine goes in. May 18, 2015 · I run the pony engine on a mixture of 50-50 lucas and 30 weight engine oil. Wheelbase. New for 2001 is a kit to convert Cat generators to a 1-wire alternator. 95. The About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Apr 2, 2020 · If I may differ, that is the oil fill place, NOT the drain. Dec 21, 2020 · Its a bit of a mutt pony motor. Have you tried Florin Tractors as Dana might have some. Sep 13, 2018 · Phone: (689) 293-3558. We started making Caterpillar electric starter conversion for ponymotor replacement in 1996-on a D7-3T. Sep 16, 2018 · 08/10/2017. I was told that it had been setting for over 20 years in a shed. Dpete, I have owned this machine since 1989 and have done a pile of work with blade and scraper both with it. I appreciate any help . It was a good old 1938, 4G, as I recall; the pony motor was about the weakest part of it - right with the track tighteners. Post attachments. $695. Re: Cat D4 Pony Motor Question in reply to Greg Lasher, 03-27-2005 18:05:34. 2 option's cut it in 1/2, sand blast and Tig weld it back together. Feb 7, 2022 · Pony Motor Electric Start Conversion was created by mjspicer1980. CATERILLAR D4-7U BULLDOZER USING A HONDA 6. Though, I guess you could use it as an oil fill if you flipped the tractor over. I had to have my neighbor turn some . Jun 29, 2011 · FREE quarterly magazine filled with content about antique Caterpillar machines. Location. Pony motor specs for D4 7J series was created by Dan1942D4. Caterpillar (with Pony Motor & American Bosch MJK 4/2 360B-47, 4/2 360C-410, MJK 4/2 360-311 Magnetos) – D2, D4, D6, D7, D8 This is a video of how the starting pinion assembly works on a Caterpillar D2 or D4 tractor equipped with pony motor start. Caterpillar 4M6341 Camshaft 9H6397 Pony Motor. If anyone has idea where to start trouble shooting I would be grateful. Generally speaking, Cat phased out the pony engines in the early to mid '60's, and by the late '60's they were pretty much gone as an option on a new machine. It contains all of the necessary gaskets for a complete engine rebuild. Pony motor removal and engine disassembly. 7U. Aug 27, 2009 · Sam Meeker demonstrating the Pony Motor on a Cat D2 Nov 27, 2013 · The engines that this pony fits are the D3400/D311as used on the D2's and the D4400/D315 as used on the D4. The dozer was not running when we bought it. Before starting the pony engage the starter pinion first. We've helped hundreds of FARM SHOW readers convert Cat engines from pony motor to electric start using our do-it-yourself kits. Mags have magnets in them for creating the hot spark. Sep 17, 2018. 00 shipping. For myself though I am told I have the newer heads with the plug in the middle of the head and they are a smaller plug dia. 61. This was the second magneto failure, so I decided to eliminate the pony motor entirely. #4. Jun 1, 2017 · The pony motor flywheel nut came loose, in fact I turned it off with my fingers, so I got a new lock washer,the bend over kind from Cat. OP. take left spark plug out, put thumb on plug hole to feel for compression, and for said M. -. or Best Offer. All in all a pretty simple conversion. Magneto in the pony motor Caterpillar D4 Bulldozer-- easy to get out and easy to check but make sure you line up the timing marks (you normally need a good torch to get TDC). Jul 23, 2018 · Cat Pony Motor Question (old D4 5T CAT) Burt Lade; Oct 6, 2017; Magnetos, Ignition Coils and Spark Plugs; Replies 8 Views 4,287. Pre-Owned. I've got new undersize main bearings for the pony motor on my 1942 D4 7J. There is a pinion gear and a latch that holds the pinion in contact with the ring gear when starting. 9970 to 10250 pounds. It has a gasoline powered pony motor to start it and warm it up. That keeps from grinding the pinion trying to engage it. $29. 1937 RD4 4G4368. Shane I have a running pony on a D4 5T that runs good (or it did almost a year ago before the head was removed from the diesel). I rebuilt it, and now it's working great. Description: 3310 HOURS, 130HP CAT C4. You should have points and a condenser in your mag. 1940 D4 7J3717. Jun 6, 2020 · Hello folks looking for this gear part number 7B2074 it has 33teeth the starter motor engages to this on my 1945 D4 pony motor it is situated behind the belt Caterpillar D4 pony motor starter drive gear - ACMOC Bulletin Board - Antique Caterpillar Machinery Owners Club Apr 7, 2024 · Caterpillar D4 Dozer; With Pony Motor. Re-Installed the pony motor and discovered no spark. Aug 26, 2013 · I recently purchased a D4 7u that has been sitting for twenty five plus years. Full Gasket Set: This is a complete overhaul gasket set. 030 under crank bearings, as I couldn't quite stomach the $400 quote from Florin Tractor. id le jf sx fr do ir pu do va