<VV> Back to the engine shop

[Mark Durham]

I agree with Matt, the engine is too new, the lower compression's might
just be because the rings have not fully seated yet. However, you could
squirt a bit of oil in the low cylinders to see if the compression does
come up, if the pbm is rings oil will help to seal them, they should
come up to the others, if not, still rings or maybe the valves were not
lapped in for a good seal on that head.
What about the knocking noises, do they happen when you crank the
engine with the plugs out? Mark Durham

Sent from my Windows Phone
From: Matt Nall
Sent: 1/30/2012 19:50
To: virtualvairs at corvair.org
Subject: Re: <VV> Back to the engine shop



OK, I did a compression test an hour ago with the following results: #1 - 145;
#2 - 145; #3 - 155; #4 - 130; #5 - 155; #6 - 125. Looks to me like the whole
left bank is weak, with #s 2 & 4 being especially bad. Am I right? And how bad?
What does this say about the symptoms it's now exhibiting: running very rough,
stalling out at idle, oil pres/temp light on at near idle?

Byron Comp

========================================================


Sure not a valve seat!!  Glad I was wrong! What did the sparkplugs look like?


Matt Nall
Charleston, Oregon
http://tinyurl.com/The-Patio
http://tinyurl.com/Matts-Tech-Pages







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