Well, first let me say Happy Father's DAy to all!
Second, Tom Dewalt, thank you for your hospitality and a nice place to work.
Third, thanks to BillD, Rocky, and AlanM who shared in this endeavor.
And to all else who will contribute in the future.
Let me start by saying first that there is NO WAY(ZERO chance!) the motor problems are Tom's fault.
We have a bit of work to do. We started with a dry/wet compression check. All cylinders were within 5 lbs. of each other, wet and dry. Tom has the readings written down, along with LOTS of photos of PROOF.
So we figure the oil(wet plug #2 and blue smoke which gets worse on warmup) has got to be a valve seal and/or guide. So we pull the engine, mount it to the stand, and start to tear it down. We pull the 1-2 head, and find some VERY interesting stuff. A malfunctioning and/or improperly installed circlip on the number two cylinder got ingested down the cylinder wall. Pieces were found in the sump. After the circlip failed, the piston pin started to rub on the cylinder wall, gouging out a NICE BIG piston pin width gouge down the exhaust side of the cylinder wall. Another small piece of the circlip went through the pin and back out the other side of the piston. It left a small gouge in the piston, but that side of the cylinder wall looked ok. However, the number two rod bearing didn't fare well as all the extra heat from the piston traveled down the rod to the bearing. After less than 3k miles, that rod bearing looked like it had done 100,000 miles in a sand rail. Lots of scoring and about half the bearing worn through to the copper. I will "mic" this at the next session but it may be moot as I think a new crank is in order. The #2 rod journal looks buggered, but could possibly be ground, I don't know yet. Personally, I would replace all the reciprocating parts in the engine, crank, rods, pistons and cylinders. The rod bearings were all worn and and too sloppy for my taste. Again, I will go back and reassemble and measure everyting, but I didn't because I would just replace it all as it is questionable. And new bearings of course. Main bearings look not bad, but with all the filings in the engine, I would replace all those parts. Clean the case halves thoroughly, and reassemble. The cam and lifters are fine, heads are fine, just need decarbonization(is that a word?). The rocker shafts had WAY TOO much sideplay, .016" minimum, and will have to be reshimmed. Pushrods also were fine. It was late and I was tired, didn't think to look at the oil pump gears.
So this is my list of parts needed to make this thing right:
Case sealant, loctite, rtv type sealer for cylinder bases etc.
New Pistons and cylinders
New Crank and bearings
New Rods and bearings(or rebush the rods he has, as they are nice H-beam)
Engine gasket set, flywheel seal
Pushrod tubes
Intake and exhaust gaskets
New brass exhaust nuts
Tom, post your pictures and comments, we're all waiting(except those that saw already)!
I am not pointing fingers or being mean about this, these are the facts, as the pics will prove: THIS WAS NOT Tom's FAULT!
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