54/55 carb inlet brass fitting question

[Troy P.]

It looks like all 53 and early 54's with the 9797 pump and fuel filter mounted near the carbs used three of the same carb inlet fittings.

54 and 55 6 cylinder cars with the 4132 pump and fuel filter mounted next to the pump have one carb inlet fitting the same as used in 53 and two that are elbow brass compression fittings with a diamond cast on the side. Inside is some sort of rubber element that is typically hard from age and exposure to heat and fuel. I need to replace those rubber elements and would like to know what to replace them with.

For those of you that have been through this successfully already, what did you use inside these fittings to replace the original seal?

[Chuck G.]

Re: 54/55 carb inlet brass fitting question

It looks like all 53 and early 54's with the 9797 pump and fuel filter mounted near the carbs used three of the same carb inlet fittings.

54 and 55 6 cylinder cars with the 4132 pump and fuel filter mounted next to the pump have one carb inlet fitting the same as used in 53 and two that are elbow brass compression fittings with a diamond cast on the side. Inside is some sort of rubber element that is typically hard from age and exposure to heat and fuel. I need to replace those rubber elements and would like to know what to replace them with.

For those of you that have been through this successfully already, what did you use inside these fittings to replace the original seal?

When I had my 54, I replaced those rubber seals with pieces of fuel line that I cut to fit. I used each piece almost like an "O" ring. Never had a leak.

Don't remember the size of fuel line I used. The OD of the line is equally as important as the ID.

Chuck

[Troy P.]

Re: 54/55 carb inlet brass fitting question

I went to the Ace Hardware looking for various rubber objects to use. Some kind of plumbing gasket or such. Came away with fuel hose just as you suggested, Chuck. Next step is to figure out the correct length of hose to cut. Thanks for the reply.

[Vin C.]

Re: 54/55 carb inlet brass fitting question

Chuck and Troy are correct. I know of no other way right now. Those fittings are Demascus Fittings. Not sure of the spelling.

[Troy P.]

Re: 54/55 carb inlet brass fitting question

I was thinking, as Roy mentioned to me earlier today, that they were made by Imperial. Seems to me 25 years ago I had heard they were used in the refridgeration industry.

[Chuck G.]

Re: 54/55 carb inlet brass fitting question

I went to the Ace Hardware looking for various rubber objects to use. Some kind of plumbing gasket or such. Came away with fuel hose just as you suggested, Chuck. Next step is to figure out the correct length of hose to cut. Thanks for the reply.

It was "trial and error" for me, Troy.

I used a straight razor blade and cut slices of varying thicknesses from the end. Tried to make 'em as "square" as possible.

Seems to me that I also recall that those fittings were used in the aircraft industry too. Something to do with their anti-vibrational characteristics.

Chuck