Carb spacer for 65 falcon

I

Ianrhall

Senior Member
Having real problems with fuel boiling in the float bowl of my 2100 2 bbl. the carb conducts all the heat from the intake. Is there a spacer I could use to help or could I make one?
Thanks
Ian
 
I made one for both my 272 Y-Block and my 223 I-Block off a chunk of 1/2" thick phenolic. I used an old carb gasket to mark where to cut the phenolic and cut it out with a electric jigsaw with fine blade. Use a holesaw in a drill to drill out your bores and appropriate size drillbit to drill your mounting holes (all patterned off the old gasket. You will need to remove your carb mounting studs and get longer ones. I don't remember where I got the phenolic stock from.
 
That carb has a common mounting pattern, storebought spacers are avaiable like wooden ones from AED and some real phonelic as well. HVH has a PVC plastic spacer and adapter that you should avoid, I've seen them warp and become vacuum leaks. I'd go with the wood one.
I'm familiar with those carbs and haven't seen the fuel boiling, what is a common problem with them is the springclip retaining the float won't get installed right and the needle & seat won't work right.
 
I can only find spacers for 4 bbls in the uk.
Could probably make one from some 1/2" thick hardwood

Maybe I'm looking in the wrong place for this fault? When I turn the car off it seems to get heat soak and the whole carb is very hot, heard it bubbling away, took air cleaner off and fuel was dripping into the manifold. Thought I had heard that this is a common problem with small block fords?

Ian
 
I seem to remember some early '60's Fords with a sheet metal "spacer" that extended out under the float bowl, it had some insulation material sprayed or riveted on it.
My '63 260 Falcon had a spacer under the carb that was the PCV sucker for the vent at the rear of the manifold. Just raising the carb gives some more air space under it.
 
A Moroso #64948 is an adaptor/spacer 1/2" phonelic. It is considered an adaptor because of the cutout for a 50cc accelerator pump, these are commonly used in circle track racing that have 2bbl carbs. Jegs or Summit has plenty.
 
Picked up a spacer at a swap meet, it's about 5/8" thick
New gasket then original pcv block,gasket,spacer and carb. Runs like a bag of spanners !!
Might be imagining it but sounds like it is sucking a lot of air from somewhere. Could just fitting that spacer affect anything else on the carburation?
How would I find an air leak?
Thanks
Ian
 
squirt oil or starter fluid or wd 40 around all parts that can cause an air leak,intake manifold, base of carb, if engines speeds up or runs smoother at any place you sprayed you have found the leak, use hardwood for the spacer, any thing hard will just let the heat travel thru it to the carb, the thicker the better, at least 1/2 inch or better ,aluminum is the worst for heat transfer
 
Also place the bare spacer on a flat surface and check it to make sure it's flat. I've had one or 2 new out of the box that were warped.
 
I should have checked it for "flatness" before putting it on. If it's out if true will I be able to correct it on a flat surface with some sand paper?
Ian
 
Ianrhall said:
I should have checked it for "flatness" before putting it on. If it's out if true will I be able to correct it on a flat surface with some sand paper?
Ian
Click to expand...

Possibly, depending on how bad it may be and how much time and effort you want to put into it. If it has a lot of rock and roll it may be better to find another one or have it milled flat at a machine shop.
 
You must log in or register to reply here.
Back
Top