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Orient Oh | I just bought a new to me 5288 and I got the chance to do a little field work with it. The previous owner said the pump has been turned up some. I would now like to turn it back down a little because the egt would get to 1150 and I never really pulled it hard because the ground was a little to froze so the tires would just spin if it started pull hard. I have done searches and have no luck with finding how to do it. |
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Mountain West | ) You might want to check the accuracy of your pyrometer. Such fades with age.
) Start by running it at part throttle. It's nice to have the extra power on hand.
) Does the tractor smoke? Does it smoke under part load? Under heavy load? You might have a timing problem. |
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Southwest Iowa | There's a guy named Mike Lynx over on redpower.com that restores 88 series tractors and has ALOT of knowledge on these machines. If you're not a member over on that forum, he does have a site of his own but I can't remember what it is right now. If that's something you'd be interested in, let me know and I'm sure we could come up with his website. |
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Orient Oh | I should add that I was onlt running at about 2100 rpms. When I bought the tractor the pyro didnt work so I put a new probe in the manifold, pricey little bugger it was. Also with the tractor reved all the way it will spin 2600 rpms which i thought was a little high. And it does smoke a little. Not burning coal smoke but a little black haze
Edited by rattlnram 12/14/2011 14:02
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Mountain West | Even with a new pyro probe, it might be worth it to check the temp independently of the digital read-out. 2600 is what those engines run at high idle. High idle rpm is independent of ultimate horsepower. Several things work together to determine exhaust temperature: engine condition, load, timing, fuel delivery, ambient temperature. injector status, turbocharger, valve timing/cam condition, cooling system. Let's be ready to look at the whole system.
That engine will smoke a little under load, but not much. 1150 on the pyro isn't too high.
Edited by rightsaidfred 12/14/2011 14:12
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Somerville, Indiana | 1150 temp advice is true...that is the recommended shift point on some Macks. |
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Wisconsin | My 5088 would pull to 1250 EGT when it was on a stock turbo at 180 hp. I put a 3LM 466 turbo on it for under 500 bucks, and dropped the EGT's to about 1130 on the same load. I intercooled it myself and really juiced it up now (well over 200 for lagoon pump work) and gets to about 1100 max. Still have a muffler, no eliminator (there said to really drop EGT's, but I don't wanna tick off the customers we're hauling for with some loud beast.)
O yea, rated speed is 2400 RPM for those tractors, which is 1000 PTO rpm. High idle is 2600 or something a hair north of that. 400 series IH motors can really spin, late model 66 series were set for a high idle of 2800 RPMs.
Edited by Tractorman3588 12/14/2011 19:07
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Southwestern Ohio | http://www.triplertractors.com/index.html
That the site
IH1586 |
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North Liberty and South Bend, Indiana | Do those read pre of post turbo? 1250 pre doesn't scare me too much, 1250 post would concern me an awful lot. |
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5288 injection pump
