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WD-9 engine parts interchangability

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akindsfater

03-24-2002 16:58:40




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I was wondering if anyone knows about the parts interchangability between the different series of WD-9 4 cylinder diesel(gas start) engines. What serial numbers are the crankshafts the same, cylinder heads, connecting rod, sleeves, pistons, injector pumps, injectors, carbs, distributer, mag, etc. Also, can the block be bored to accept other series sleeves, and any other information anyone has. I am working on a WD-9, TD-9, and UD-16 and need lots of parts for the engines.....

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Red Rider

03-24-2002 20:50:40




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 Re: WD-9 engine parts interchangability in reply to akindsfater, 03-24-2002 16:58:40  
You can take the 335 out to 4.5 bore (350 cid). As for boreing the block to except larger sleeves, I wouldn't. If you happen to have a thin spot due to 50 years of some inner water jacket deteration and you go through the water jacket your in big trouble. The head for a TD9 335 (260692R61) and the head for a 600D 350 (260692R71) basicly the same. The R61 verses R71 usually means that there is some update improvement but will interchange. The Cam shafts have the same part number. The crank shafts are differenct. The Exhaust manifolds are different but the intake manifold (263310R12 for 335) and (263310R13 for 350) are the same except for some minor update. The Rods are the same, Carberator is the same but the injector pump and injectors are different. No doubt the pump and injectors would work if you go to 350 cid. IH used different part numbers for injector that had a higher injection pressure. Same for the injection pump, little more volume different part number. As far as the accessaries, starter, water pump, oil filter, distributor or Mag, those will inter change. I think the exhaust manifold will inter change. I have a TD9 with the 335 and an International 600 with the 350. I have the over bore sleeves and pistons 4 & 5/8 370 cid) in my 600. As soon as My TD9 needs an overhaul I plan on putting the 4 & 1/2 sleeves and pistons in. There are not high altitude pistons available for the Gas start diesels. There is any room in the head for domed pistons. The head is pretty much flat. The only recess in the head is for the valves.

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akindsfater

03-24-2002 21:17:04




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 Re: Re: WD-9 engine parts interchangability in reply to Red Rider, 03-24-2002 20:50:40  
Can my stock sleeves be bored to 4.5?????



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Farmall-Nut

03-24-2002 19:03:50




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 Re: WD-9 engine parts interchangability in reply to akindsfater, 03-24-2002 16:58:40  
You have enough clearance to bore but the problem may be the head. The 4 gas starting valves are in such close proximety with the running intake and exhaust that increased heat through combustion may crack it. This was a problem with IH's early diesel engines. However with proper cooling fluids and reasonable cool down periods these engines held together well. I dont know if the 9 series or diesels for that matter were actually produced with domed pistons for high altitude. If they were it should be in the suffix code. LOL

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akindsfater

03-24-2002 19:24:09




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 Re: Re: WD-9 engine parts interchangability in reply to Farmall-Nut, 03-24-2002 19:03:50  
What pistons are available for a overbore??? There is a 4.5 overbore piston available from perfect circle. Can this be used in a early d335 block??? Will there be enough sleeve for durability???



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