T Mack 1 - FSO wrote on 12/29/09 at 07:32:45:



But then, If its the just the cam journals, at least that engines guts may be awwrite.


My thots exactly

Magnets are a trick we've learnt from the extended life oil filter guys.
magnetic filters don't care about the particulate size, only that it's magnetic.  Some super fine sludge will collect around the maget and pull it out of suspension.  Magnetic oil plugs have been around a long time.  placing it on the filter just puts the magnet in a better spot.

The  magnetic drain plug had some super fine particals on it; too fine to even feel gritty; just very smooth.

The head is off:

-cylinder is ok
-piston top is ok
-do not have a good look at the oil ring set yet
-cam journals do not look good
-evidence of heat on rockers...cam lobe end
-cam looks ok

I have some photos but am away from home right now so will post them later

smokin_blue wrote on 01/12/10 at 03:33:12:

Only oil can take the heat off of the rockers and prevent journal damage.

Lancer, you shaved the cylinder or the head?

3 things I see...
smearing material in the cam journal, could be cause cam was hot and over expanded.  
Could be caused by very little gasket material.  Clymer says set the head cover bolts finger tight, wait an hour then torque.
extra sealant in the figure 8 pocket.  Don't know how much oil is supposed to flow thru here or where it goes, but if it's blocked it ain't gettin' nothin'.

The picture of the head and cam, with cam chain in place, looks as if the head is still on the engine. I cannot see any way to have the head as clean as it is, unless the whole assembly was cleaned with solvent prior to removing the head.

The picture of the head cover, with the little O-ring in place, almost looks as if some sealant got into the passage and blocked the oil flow. I suspect the only oil flowing into the head comes in through that passage and goes to the cam journals, from which it runs out into the "bathtub" and is splashed around the head by the cam lobes.

The parts showing damage are the only parts with a "wiping" action - the cam journals and the rocker lobes where they rub the cam. They appear to have suffered from lack of oil. Too bad that doesn't explain the smoking issue.

Don't forget to check your clutch side cover gasket to make sure sealant is not restircting the tiny oil passage.

Second....  when I rebuilt mine, the owner of the salvage yard where I got the used good head said to loosen the oil passage head cover bolt and make sure you get oil out.  

When I tested mine,  I took the sparkplug out so no load on engine, and crank crank crank .... nothing.  Then took the bolt all the way out, looked down to see if I could see any oil.... crank crank crank splat   ...... oil all over the face...   shot up a good foot or so.