Tech Q ?

[hardtimes]

I'm taking apart a model b diamond engine.
Have run into a 'strange' situation, that I haven't figured an answer for...yet.
Thot I'd ask here...early, in case someone has a helpful tip as to their thots.

This Texas guy sold a diamond B....as 'possibly' rebuilt.
Hey, it looked good with NEW paint ....that was puzzleing, as a guy would have to strip the b down to do such a good even paint job ?
Anyway, he did NOT provide any oil pressure testing orifice....that made me suspect of him. Without oil pressure assurance and with oil leak at front main...hm what's up ?

Ok, I pulled engine, took down pan and found a full THREE inches of sludge, to the extent...that it was covering oil pump half way up !! WTFudge ??

Pig in a pretty painted poke ??

So, took of pretty winfield 6;1 alum head. NO ridge ring..in any cylinder ??

Pistons...standard..hm ?

I did not take a compression test, but ran engine briefly till verified front main oil leak. NO smoking. Too rich fuel with excessive fuel not being burned..black plugs.

I'm stuck as to why ANYONE would bother to strip and engine to apply proper paint block/ pan, etc....and not remove pan for cursory inspection ??

Why no oil pressure and/or gauge ...to indicate 'remove pan and inspect' ?
Pump couldn't be putting out pressure...as it was !

And, how do you have 3 inches of sludge in engine with standard/no smoke pistons and no ridge rings ?

Still have to look further at bearings, etc.. Valves look ok/black on too rich fuel.

Kinda stumped on why so much sludge and engine still in condition it is in ?

Thots ... anyone ?