Re: Carb overflow and running condition

[Glenn Merrell <gmerrel@domain.elided>]

Hello Ralph,

Ralph Vrana wrote:

>Here is the problem.A)the fuel pump runs all the time bypassing the
float valves' CAUSING HYDRAULIC >LOCK IN THE PISTONS, not good now I
 >have to change the oil too!

You have a crack or leak-by somewhere between the fuel bowls and the
carb body.  Could be that the threads around the jets are
stripped, or that the crack is in this area.  Could also be the aluminum
washer for the needle valve is cracked or missing, or a missing
or cracked "O" ring, or leaking past the jet assembly.  In any case, it
is tearing apart the CD-175's and rebuilding them with new
parts.   There are several manuals specifically for the Zenith Stromberg
CD series carbs, buy one!

Regards,
Glenn Merrell
"Keep Your Stag Cool, Install a NEW Composite Cowl Today"
http://pw1.netcom.com/~gmerrel/stagcowl001.html