> Ok, I'll tell you about the leak down test but I think it should
run ok even
> with 80#. I still think its a vacuum leak. To check for leaks use
> throttle body cleaner with the little spray tube attached . To
confirm that
> it is running lean, squirt a little in the top of the carb throat.
If the
> engie speeds ip and smooths out momentarily you know it's running
lean. So
> then squirt around the intake manifold , like where the gaskets
meet.
> Around the base of the carb. at all vacuum hoses. If that didn't do
> anything take a pliars and squeeze off every vacuum line one at a
time
> including the brake boost line and PCV line. If any big jump in
RPM there
> trace it back to the source. Also if it is lean and can't find a
leak try
> screwing out the idle mixture jet on the primary carb (the one that
opens
> first) and see if that smooths it out.
> For the leak down check rotate the crank untill top dead center
of the
> one with low compression. Use a long screwdriver in the plug hole
to tell
> if it's at the top if the timing mark is not lined up on that
cylinder.
> Next cut a piece of hose about 8" long and about 1/2" OD to stick
down your
> spark plug hole put your rubber tipped air blow gun on the other
end of the
> hose and blow compressed air into the cylinder 80# will be fine.
If the
> crank moved you didn't have it at top. Have someone listen to the
tailpipe
> for air escaping past the valve. Have someone open the throttle
and listen
> there for air past the intake valve. Take the oil filler cap off
and listen
> and feel how much air is blowing by the rings. If the hose trick
doesnt
> work you could take the hose off your comp. tester and unscrew the
schrader
This archive was generated by hypermail 2b29 : Fri 14 Apr 2000 - 23:48:06 UTC