DT414 resurrection

waterflea · Jul 24, 2020

I'm trying to get a 1976 Hough H65C payloader with an International DT414 engine running after many years of not. I have replaced the sleeves and pistons. Complete valve job.

New turbo. Injector pump rebuilt. Injectors tested. ( test a little high but all consistent). Will not start without starting fluid. Will eventually stay running but not well. Have timed @

15BTDC as per specs. Have also tried other timing settings. Does not want to start on it's own, runs rough, smokes a lot. Would appreciate any help.

VicS · Jul 24, 2020

Sounds like it may be timed to fast. My pulling tractor did this to me. The pump guy put 10 deg of pump advance in it. That is 20 deg of crank advance. I had it timed 10 deg to fast. Starts instantly now.

Ken Loewenhagen · Jul 25, 2020

Had a 1456 IH that we overhauled. Had a hard time getting it started and was low on power also, smoked like crazy. The machine shop ground the valves and seats wrong. Had to install new seats to get the valves protrusion correct. Those engines are very fussy on that.

the tractor vet · Jul 25, 2020

Are you 100% dead sure you have it timed correctly . One of my friends pulled a pump off a 966 one time and when he put the new pump on he had the same issue of hard starting low power and he had it 180 out and it would start. he played with it and played with it . He kept insisting he had the pump on correctly . This was on one of his friends tractors . Finally i had to go over and i pulled the valve cover and yep it was timed on #6 perfect . Pulled he pump back off and put her on #1 and we had lift off . That was the second time i had to go bale his donkey out when he was being a know it all. So pull the valve cover off and make sure #1 rockers are really at TDC then set you engine to the degrees and put the pump on . Make sure you have the valve set done correctly , then if it is hard starting then you have and issue with valve recession and causing low compression providing you have the correct piston and sleeve kit in it , if you got by mistake say a 436 kit then no she will not hav e the compression to lite and NO power .

waterflea · Jul 25, 2020

So I removed the gear, turned the pump 360 replaced the gear on the timing mark and nothing. Not even smoke out the exhaust which I was getting before. I think I did it right. How can you tell on the pump if you have it timed right? There must be a way to check that instead of just hit or miss.

waterflea · Sep 7, 2020

Sorry to take so long to update this situation. I did get this tractor going and she runs like a top. The problem was a small fitting on the return line from the pump. Originally it had a plastic insert in it with a small orifice. This was either removed or fell out, wasn't caught the first time the pump was rebuilt but noticed when I took it back and had him go through it again. The replacement is all brass. Thanks for all your input. I hope this helps somebody else in the future.

DT414 resurrection

waterflea

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VicS

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Ken Loewenhagen

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the tractor vet

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waterflea

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waterflea

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