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Farmall & IHC Tractors Discussion Board

Re: 806 miss and smoke…alot of smoke


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Posted by pete 23 on March 13, 2014 at 10:38:06 from (74.33.94.238):

In Reply to: Re: 806 miss and smoke…alot of smoke posted by will-max dairy on March 13, 2014 at 07:19:19:

You got that right about those 361 and 407 can be tough to overhaul. Then you have the guy who puts the sleeves in the freezer and drives them in with a wood block and the darn engine actually runs. Thing is , one engine doesn't count. Do a bunch of them and then compare results. Another thing often overlooked on all of these diesel engines is piston protrusion over the top of the block. IH never even gave any specs for it. Have to go to engine rebuilders for specs. We all know that valve recession or protrusion is critical(now days we know, old farts like me had to learn that the hard way as there were no specs on that for a good long time either). I taught many a young guys about measuring them up. Some of the vo tech instructors were not even teaching it. Some were.

Some engine offer different thickness of head gaskets now to accommodate different piston protrusion. Most don't. Makes it tough as a mechanic. Ever wonder why one engine starts so nice and next one which is supposed to be identical is a hard starter. It's in the squish.


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