Whats wrong with these pictures? (big pics)

s383mmber1

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Oct 31, 2005
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Extremley low compression across the board. Ran extremely sluggish, smoked heavily every once in a while (oil). Spark plugs drenched in oil. After checking compression, poured a small amount of oil in sparkplugs and re-checked. Comprssion came up +50-60 PSI, but still low. Headgasket is A-OK.

Thanks for all your time!

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Kckazdude

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Mar 16, 2007
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First problem I see, the MLS gasket on a block that hasnt even been cleaned very well from a composite gasket. Compression coming up with oil indicates the rings are not sealing.
 

s383mmber1

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suprabad;1065072 said:
Rings are shot, probably the bores too. Also, I think I see some traces of cylinder to cylinder leakage.

That one needs a complete rebuild.

Thanks :) Just confirming my diagnoses. Any other imput is appreciated. This block is not salvadgeable. The crank has already been repaired, and id like to go with a different one. (Shaeff did an awesome job though +++ to him)
 

s383mmber1

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Kckazdude;1065074 said:
First problem I see, the MLS gasket on a block that hasnt even been cleaned very well from a composite gasket. Compression coming up with oil indicates the rings are not sealing.

The block was cleaned, and prepped for the MHG. The HG is not the issue, as far as i can tell.
 

mdr40z

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Mar 31, 2005
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s383mmber1;1065077 said:
The block was cleaned, and prepped for the MHG. The HG is not the issue, as far as i can tell.

it is if want want to run higher boost, should have been ground, not just cleaned and slapped back together
 

s383mmber1

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mdr40z;1065134 said:
it is if want want to run higher boost, should have been ground, not just cleaned and slapped back together

It is a cometic gasket, and i was running close to stock boost (8-10PSI) But im not sure why you guys are focusing on the head gasket, as it doesnt seem to be the problem.
 

CyFi6

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Oct 11, 2007
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Careful with that head, you really don't want to put it on a flat surface face down like that with the cams still in, or its going to be resting on the extended valves.
 

jdub

Official SM Expert: Motor Oil, Lubricants & Fil
SM Expert
Feb 10, 2006
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CyFi6;1065566 said:
Careful with that head, you really don't want to put it on a flat surface face down like that with the cams still in, or its going to be resting on the extended valves.


What do ya mean, William knows what he's doing ;)
 

Facime

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Jun 1, 2006
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As Kckazdude said, the leopard print on the block indicates that it wasnt surfaced after the last composite gasket was removed. While that may not have been the problem or even contributed to the failure of the motor it was in fact a good spot.