On Thu, 24 Aug 1995 MORROW@udavxb.oca.udayton.edu wrote:
> Hello all. I got tired of scraping the carbon off of #6 plug and decided to
> run a compression check on the beast. Cylinders #1-#5 were all between
> 130-135 psi, but #6 was only 70! A squirt of oil into #6 hole and a recheck
> gave only 80 psi. What is the most likely problem here? Broken ring? Worn
> ring? Valves/valve guides? The car runs fine, but is very smoky at initial
> startup (black smoke, not grey), little or no smoke after driving a while.
> #6 plug gets completely covered over with carbon after about 500 miles and
> won't fire. Any suggestions would be appreciated. Thanks.
> Gary Morrow, 72 TR6
The simplest and surest thing is to pull the head off and take a look. If
this condition occurred suddenly it sounds like broken rings or a holed
piston.
Phil Barnes '71 TR6 CC61193
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