GF432 GAS FILTER ????

[Tom S.]

Does any one know of another filter that will work for a GF-432 gas filter? I have been to 4 parts stores here in town and no one has it.Only 1 found a listing on it and he said he would have to special order it.At a tune of 39.00 dollars for the filter and around 5.00 frieght I thought I would try to find something else that would work. I need one with a check valve as I have a bleed back problem and it is miserable to start after sitting a few days. Thanks in advance.

Tom Stanton#41491

[Jack H.]

Re: GF432 GAS FILTER ????

Have you tried NAPA? They generally have a good x-reference system for filters and if a given retail outlet doesn't have inventory, it's available from the local warehouse, without extra charge, pretty darn quick. I know there's a functional replacement because the Paragon catalog depicts one, but unfortuantely failes to state the mfgr/number....

On the need to find a filter with anti-siphon valve, I think you're looking for Emperor Hirohito's jock strap.... Fuel should be retained in the carb's fuel bowl by way of the float/needle valve. If it's actually leaking from the storage bowl back through the filter and fuel pump, it's time to overhaul the carb and fix the problem at its source.

One more thing.... These carbs are open to the atmosphere (vent stacks). They were intended to be driven daily. If let to sit for any appreciable time, EXPECT the fuel bowl to dry out naturally due to evaporation through the vent stack.

For 'weekend warrior' Corvettes, a change to normal driving habits might be in order. When you first crank the engine, PRESUME the fuel bowl has gone dry! Set the choke with the accelerator pedal and feather a few addional pump strokes. Now, crank for maybe a second and STOP cranking if she hasn't fired!

Re-feather the peddle a few times and crank 'er again for a second or so and STOP if she doesn't fire right up. Repeat this process and by the 3rd-5th attempt, she should ROAR to life without excessively cranking your battery into the ground.

If you KNOW the car's been sitting for more than a week, you can bypass this altogether. A small (1-2 oz) squeeze bottle filled with gas can be poured down the carb's vent stack (have to remove the air cleaner) to pre-fill the fuel bowl before your first fire attempt....

[Jeffrey S.]

Re: GF432 GAS FILTER ????

Tom:
The GF432 that is available from Paragon and National Parts Depot is slightly different than the original in that it has a larger diameter and won't fit in the stock bracket and does not have the red silk screening. A larger bracket is available. The Parts Depot price is $31. I have seen the exact same filter with a different number (GF430?) that was used in Cadillacs of the same vintage and perhaps going on line and finding Cadillac supplier they might have these. Hope this helps.
Jeff

[Tom S.]

Re: GF432 GAS FILTER ????

Jack
The carb is brand new out of the wrapper #7029207 I got it on e-bay to replace the incorrect Holly that was on the car when I bought it. I also replaced the intake with the correct one.I set the choke pump it a couple times and it cranks, no fire.I set the choke again pump it a few more times no fire.I have to literaly pump the thing 15-20 times before it will fire. This is after sitting just 2-3 days, were not talking weeks of sitting. If I start it every day I only have to set the choke and 1 pump and of it goes.It seems to me that sitting 2-3-4 days shouldn't make it that hard to start.

Thanks Tom

[Dick W.]

Re: GF432 GAS FILTER ????

Jack, Wix does not have a cross for the PF 432. Wix makes NAPA's filters.

[Jim T.]

Re: GF432 GAS FILTER ????

Q-Jets can leak fuel out of the fuel bowl, I experienced this with my new 70 and put a Holley 6210 spreadbore double pumper on it. Easy to check, just remove the top of the Q-Jet after sitting 4 days and see how much fuel you have.

[Tom S.]

Re: GF432 GAS FILTER ????

Jim
Thanks for your help. I thought about taking the top off but being brand new I didn't want to disturb the gasket. Can you buy these top gaskets seperatly or do you have to buy a whole kit? How hard would it be to get the top off the fuel bowl without screwing up the gasket?Thanks again to all that have answered.

Tom

[Terry M.]

Re: GF432 GAS FILTER ????

It is not too hard Tom. We (and there were close to a dozen of us... misery loves company) did one in Cheyenne Wyoming in a motel parking lot on the second road tour to Bend in 1989. The only trick, if I remember rightly, is to get the needles on the hanger properly, and into the jets all at the same time during reassembly. It helps to have done it a time or two before, or have someone on hand who has done it a time or two.
The pivot pin for the accelerator pump arm (at least I think that is what the pivot is for) doesn't have to come out. Just push it toward the center of the carb with a pin punch, but don't push it all the way. Leave a little space so you can get a thin screwdriver between the pin and the top in order to push it back into the lever.
I hope this makes sense. The HP book on Rochester carburetors is a great help. It is available from the NCRS book store. Catchy title: Rochester Carburetors.