While you have the cam cover off, checking the valve clearances,
double check the camshaft timing, more than just the marks lining
Piston one at TDC (double check the second flywheel mark, by using a
screwdriver in the #1 cylinder spark plug hole), the camshaft lobes
should be symmetrical across the "clock face".
This has all of the markings of slightly advanced camshaft timing.
On 9/28/2018 5:22 PM, crosleyshortsport
Ok guys, Been a good portion of the day trying to
figure this out. Still have not found the problem. I tried a
short fuel line directly off the fuel pump and into a bottle of
fuel, still no high end power. I took the exhaust system off.
Inspected the pipe from the manifold, and checked for any
blockage. Installed the pipe without the muffler. Still no high
end power. I really feel that my timing is dead on, as it starts
with one touch, idles very well and revs at a standstill with no
drag at all. I put another new condenser on just to be sure. I
am pretty much out of ideas. Tomorrow afternoon I am going to
pull the valve cover and check the valve clearances. Then I am
going to pull a carb from another Crosley that I run all the
time and install it on this engine. I am open to any ideas
anyone may have.
No it would not affect the car sitting still
while reving the engine. I can not tell you the exact
technical aspects why but it only happens under load. As I
mentioned, just went through this exact same thing with my
wife's car and the cat converter breaking up and partially
plugging the exhaust. The car ran seemingly fine up to
about 40 mph then just fell on it's face. It took us a bit
of head scratching and testing to come up with something
that was actually very simplistic.
Like I said...just because something is NEW means
nothing. I recently was given a VW bus for FREE because
the owner gave up on being able to make it run right.
After about 10 minutes of inspecting I found a good sized
hole under a cold weld on the brand new intake manifold.
It was a HUGE vacuum leak and the van would never get over
30 mph. I welded it shut and the van drove perfect. So
new exhaust or not, an internal baffle could have slipped
during assembly or some chip munks used the exhaust to
hide acorns. Who knows...just thinking outside the box
here. Seems you have exhausted (get the pun) every option
but this one.
Keep us updated I would love to hear what happens.
BTW I think you mentioned it was rebuilt...but how is
the timing advance working on that distributor? I would
check that too. No matter what was rebuilt I would STILL
check it all out and not assume because it was rebuilt
something is working properly.
Todd, I will pull the muffler tomorrow
morning and see how it goes. I have checked everything
going into the engine. I have not given any
consideration to exhaust until I read your your
suggestion this evening. I will let everyone know what I
Thanks again Todd, please don't think anyone
was doubting your expertise. Thank you for
contributing it. Jeff has done a number of
Crosley restorations and this problem has got him
baffled. As such no ideas will be discounted.
LBtw, Jeff confirmed it was a new Dave Edwards
exhaust that had been installed just before the
engine. Certainly, Rechecking for exhaust blockage
is something to be considered . But I have a
question, wouldn't blocked exhaust have also
expressed itself in acceleration of the engine at