Super 88 Diesel power loss

T-bird · Mar 18, 2016

Did a fresh overhaul on Super 88 diesel due to oil consumption. Rebuilt with stock kit, head went to shop, crank went to shop for grinding and thrust rebuild. tractor seemed to have a weak sound while running before overhaul. After overhaul I have an engine that does not use oil, does not miss, starts very good but still has that weak running sound and then the dyno showed about 32 horsepower. Ive rebuilt several other olivers with good results but this one is a head scratcher. A friend of mine told me that he had an 880 years back that was weak on power and he found the hydraulic head of the bosch injection pump to be off one tooth and it robbed a lot of power, said he retimed the pump and it made a big difference. I am wondering if anyone else here has tackled this issue? thanks guys

J. Schwiebert · Mar 18, 2016

You need a good tune up. I will send you an e-mail That used to be my favorite thing to do, a good dynometer tune up. We had a customer that purchased a used 99 diesel. He said his 77 would do more. It had 22 horse when we hooked it up to the dyno.

T-bird · Mar 18, 2016

Oh,,,FYI tractor was weak before overhaul

Al Baker(pumpman) · Mar 18, 2016

Pull the pump and have someone run it on a stand. You have spent how much money so far, what is 100 bucks to find the problem? Any good pump man will test it out and be able to get to the bottom of your problem. If you dont have one in your area that understands these old American Bosch pumps, or is willing to test yours without a total rebuild first give me a call, I would be glad to help you out. Good luck,,, Al 231/757/0064

formenwhogrow · Mar 18, 2016

What exactly does a tune up entail? I guess I am asking what was wrong with that 99? Timing?

gordey · Mar 18, 2016

Valves would be key

T-bird · Mar 19, 2016

How do you tune up a diesel and what about valves? my confusion has went from bad to worse.

J. Schwiebert · Mar 19, 2016

I sent you an e-mail, did you get it? J.

Tramway Guy · Mar 20, 2016

Do you get a lot of smoke when you load it?

T-bird · Mar 20, 2016

kind of gray smoke not black like normal

J. Schwiebert · Mar 20, 2016

Well did you get the e-mail? Yes or No? I need to ask you a lot more questions about your 880 so I can give you some advice. We used to service probably 35-40 model 880 tractors and all were diesels except 5 so I do have a little experience with an 880 diesel.

T-bird · Mar 20, 2016

I got your email. I guess you need my phone number??

J. Schwiebert · Mar 20, 2016

Yup. Sent it to me with your snail mail address as I will probably wind up sending you some printed information too.

T-bird · Mar 20, 2016

David G · Mar 22, 2016

Diesel Tech posts here a lot, he is very good on the pump and injectors, I would send them to him if you are not absolutely confident in the local shop.

Super 88 Diesel power loss

T-bird

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J. Schwiebert

Well-known Member

T-bird

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Al Baker(pumpman)

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formenwhogrow

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gordey

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T-bird

Member

J. Schwiebert

Well-known Member

Tramway Guy

Well-known Member

T-bird

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J. Schwiebert

Well-known Member

T-bird

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J. Schwiebert

Well-known Member

T-bird

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David G

Well-known Member

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