[Healeys] playing detective

[Greg Lemon]

If the valve were returning slowly wouldn't you get worse running pressure?, 
I believe you recorded zero compression on a compression test and 60 PSI 
with the car running.  Have you tried the old oil test, a little motor oil 
in cylinder one, if compression goes up appreciably you know it is 
piston/cylinder related, if not should be valves.  I don't know which, but 
that easy test should help. http://www.dansmc.com/compression_test.htm link 
to a motorcycle sight, but the principles are pretty universal to all 
motors.

Greg Lemon
54 Bn1

Greg Lemon
----- Original Message ----- 
From: "James Shope" <healeymanjim at hansencc.net>
To: "healeys" <healeys at autox.team.net>
Sent: Saturday, September 29, 2007 9:25 PM
Subject: [Healeys] playing detective


> with all the responses suspecting the valve train, i have began to wonder.
> with nothing obvious could it be possible that with new valves and guides, 
> the
> valve is hanging up and not closing fast enough.  the valve came out 
> easily
> and moved easily in the guide when we took the springs off, but is it 
> possible
> for it to return too slowly and allow compression to escape.  i know that 
> it
> was moving up and down but had no idea of how quickly it returned to full
> close.  could this be possible or do the springs have too much tension for
> this to happen.  healeymanjim
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