I would pull the pushrods on that side and check them for clogs. If they are clear, the lifters or rockers must be clogged. With the pushrods out, run the motor with the plugs out for a bit - oil ought to be coming out of all four pushrod tubes. Don't go over an idle, oil pressure will be low with the restriction of the rockers removed There might have been something stuck between the lifter and the end of the pushrod that will get flushed out when you run the motor. On all four seems a stretch, though.
Another thought - were the cam bearings replaced? There's a groove around the middle bearing that connects the oil gallery on the left side of the case to the gallery for the right lifters. Is it possible that got sealer in it? That would starve the whole right side of the motor for oil. The only reason I can think of for fuel overflowing out of the vent tube is that the needle valve is not sealing. Try blowing into the fuel inlet while pressing the needle lightly into the seat. Has the carb been gone over? Could be a clog somewhere in there. I can't see how a clog would cause fuel to bubble out of the float bowl, though. Chuck Kuecker No Quarter wrote: > A year or so ago, I spied a Herbie bug here in town and it turns out, I know > who the guy is. After speaking with him a couple of times about maintenance, > he had me come over and take a look. Here's the problem and I'm not quite > sure what to do about it. > > First off, the engine is a Type 1 1500 or 1600cc single port. Engine was > running fine the first 100 miles or so they drove it. History of the engine > unknown. I adjusted the valves and notice absolutely no oil on the rockers > or shafts on the #1 and #2 side. Not even residue. I fully expected cobwebs > to be visible. The rocker shaft was even surface rusted. Changed oil and > though thin, didn't smell gassy. Gapped new plugs and installed them. > Installed new points and condensor. Mechanical advance dizzy set at 28 > degrees advance (was around 50 before). > > So with everything that constitutes a tune up, the thing is hard to start. I > pulled off the air filter and noticed fuel bubbling up and over out of the > bowl vent and into the careburetor. I removed the top of the H30/31 carb and > the fuel level was appropriate - nothing higher than one would expect. > > The ends of the manifold are snug in the head and all vacuum leaks have been > ruled out. I've NEVER seen fuel coming out of the bowl vent before. Is this > simply a bad float needle issue? > > Thanks for your help and the car still runs like crap. I suspect a couple of > dead cylinders but going over in a half hour to do a compression check to > rule out any other issues. > > Erin > _______________________________________________ > vintagvw site list > [email protected] > http://lists.sjsu.edu/mailman/listinfo/vintagvw > > _______________________________________________ vintagvw site list [email protected] http://lists.sjsu.edu/mailman/listinfo/vintagvw
