First off your compression gauge could very well be pessimistic. It would
not be the first inaccurate compression tester I have seen.
Secondly even with compression of 100-125 the engine should stay running,
and not die. I would look way elsewhere before I started tearing the engine
or the engine builder apart.
One good place to start is to check for vacuum leaks. A vacuum leak could
easily cause the problems you are having.
Rick
On Wed, Dec 9, 2009 at 11:33 AM, Attean Lake Lodge <info@atteanlodge.com>wrote:
> Since I first started my car a couple of weeks ago I have just not been
> able
> to get to run even close to normal, in fact the only way I can keep it
> running
> is to hold the chokes out most all the way. The carbs were rebuilt by Joe
> Cuerto, plenty of fuel to them, proper fuel level in the bowls etc. etc.
> Valve
> and ignition timing dead on. I finally figured it had to be a vacuum
> problem
> so I just did a compression test...very depressing, a low of 100 and high
> of
> 125. The engine was out of the car when I bought it but had been completely
> rebuilt by a reputable guy who told me he did everything right including
> new
> rings, pistons, crank, valves, cam etc., he also had the head planed. Yes,
> I
> checked the clearances and they are fine, I have been able to run the
> engine
> for maybe 7 or 8 minutes at most before it sputters and dies. Did the
> rebuilder screw up or am I missing something here? Any thoughts will be
> much
> appreciated will I load the shotgun.
>
> Brad Holden
> 67 BJ8
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