Re: CRANKCASE BLOWBY

Posted by Tommy D6-8U on August 21, 2004 at 18:14:50 from (209.198.52.55):

In Reply to: CRANKCASE BLOWBY posted by NEED HELP.......... on August 20, 2004 at 18:39:20:

I run a fair amount of engines on our dynamometer
at work and even with rebuilt engines run at various loads, you will almost always get a fair amount of what looks like excessive blowby. When you actually measure it with the manometer, its only an inch or so of water column. All mfrs figures are different. The first engine I rebuilt myself did fine until I put the 100% load on it and it steamed out the vent like a locomotive for about 5 minutes and then cleared up. It was a 1004 Perkins; I think they say about 2-3 inches is acceptable (not sure about that). All told, I"ve dyno"d Perkins, Kubota, Deutz, Nissan, Yanmar, JD and they all seem to do about the same; it always looks worse than it is. For what its worth!

Tommy

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