[DeTomaso] Asa Jay's 1985 built 351C Forensics

[Asa Jay Laughton]

Jack,

These are ideas I've been leaning toward as well.  I'll do an inspection 
of the head but I don't think the cause is there; I think it's in the 
block.  My initial thoughts a few years ago were a cracked piston 
skirt.  I think now that still may be a possibility but certainly 
something is wrong in that cylinder.

Thank you for the other possible ideas, it will be interesting when that 
piston comes out of the bore.
:)

Asa Jay
<no worries, I won't be using those pistons again.>

Asa Jay Laughton, MSgt, USAFR, Retired
&  Shelley Marie
Spokane, WA
******************************
http://www.racingagainstautism.com
http://www.teampanteraracing.com


On 11/26/2010 22:11, JDeRyke at aol.com wrote:
> That much carbon means massive oil problems. The cylinder has two openings:
> one at the top and one at the bottom. So, for the top: Valve guide seals
> plus bad guide(s) or maybe a burned valve
> For the bottom: cracked piston with/without a broken ring -maybe the oil
> ring.
>
> Junk the cast dish pistons- they give 8-1/2:1 compression and in all
> liklihood were bad before you rebuilt the thing. I've had the entire top of such
> pistons break off and begin flying up&  down in a cylinder with each
> combustion event like an aluminum washer.   Good luck- J Deryke
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