Volvo Penta | Holley Carb Leak - Fuel Line Connection

[baker556]

Hi all,

I've a fuel line leak at the brass connector from the fuel line into the holley carb - I cannot get this tightened any further. How is this expected to get a good seal, do others use PTFE tape or similar? Or some kind of gasket?

Picture below to help.

Thanks

 

[Senior B]

Believe there should be a sealing washer there.

 

[Scott Danforth]

its an inverted flare fitting.

if its leaking, either the tube flare is bad, or the inlet fitting in the carb is bad.

easy fix, either replace the tube nut and re-flare the end, or replace the inlet fitting.

THERE IS NO SEALANT OR SEALING WASHER.

 

[Bt Doctur]

And tell the Butcher yo use the correct line wrench not vise grips

 

[baker556]

Thanks guys - yeah it was already butchered so not a lot I can do there.

I'll check the flare and inside the inlet of the carb - much appreciated for the help - likely another £50 spent with volvo.

Cheers

 

[Scott Danforth]

Thanks guys - yeah it was already butchered so not a lot I can do there.

I'll check the flare and inside the inlet of the carb - much appreciated for the help - likely another £50 spent with volvo.

Cheers

its a holley carb, why pay 3X to get the part thru volvo?

Holley 26-26 Holley Fuel Fittings | Summit Racing

Free Shipping - Holley Fuel Fittings with qualifying orders of $109. Shop Carburetor Inlet Fittings at Summit Racing.

www.summitracing.com

 

[baker556]

Woah, great find Scott - I'm in the UK so parts like this are more difficult to source.

Is there any thoughts to cutting the end off the fuel line, using a flaring tool with a new nut over buying a new fuel line etc.

The question is, does anyone know the size of the nut required and which type of flaring tool is it double etc - I have the flaring too so could save it here.

Thanks

 

[Scott Danforth]

Woah, great find Scott - I'm in the UK so parts like this are more difficult to source.

Is there any thoughts to cutting the end off the fuel line, using a flaring tool with a new nut over buying a new fuel line etc.

The question is, does anyone know the size of the nut required and which type of flaring tool is it double etc - I have the flaring too so could save it here.

Thanks

if my buddy Jock in Scotland can buy Holley parts in europe, you should be able to as well. BTW, you will get faster service from many sites than I do in the states for some reasons. both Summit Racing and Rockauto will ship to the UK

the fuel line is simply a 3/8" metal line, commonly used as a brake line. the fittings are SAE inverted flare. the fuel line is about $10 US and will be about 10X that thru volvo

measure first, should be a 3/8" tube, the inverted flare thread is 5/8-11. its a brass inverted flare nut, however you can use plated steel. just put a bit of paint on it. its a double flare

Free Shipping on Orders Over $109 at Summit Racing

Find Parts and Accessories 3/8" inverted flare nut brass KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing!

www.summitracing.com

 

[dubs283]

Sierra sells flexible pressure rated fuel lines with flared fittings at both ends. Two different lengths available. Plug and play

As stated, order carb parts direct from Holley

 

[baker556]

Hi both,

Thanks for the info here, I'm hopefully with the boat this weekend to carry out further works and will check over everything and then place the order.

 

[baker556]

Hi all,

Finally with the boat this weekend, the flare looked quite good:



The inlet to the carb looked fine too:



btw which way up does this fuel filter sit? I looked at countless diagrams and not one showed it in detail. I put this back together with with the filter flipped into the inlet nut, then spring ontop and pushed in.

Unfortunately I didn't get time to test but everything went back in smoother, hoping for good results on start up.

 

[baker556]

Bump this up, wondering if anyone knew which way round this little filter went?

Thanks

 

[Scott Danforth]

Bump this up, wondering if anyone knew which way round this little filter went?

Thanks

I would throw that filter away as you should have the fuel/water filter upstream.

however the hollow conical part goes against the incoming stream of fuel, the spring holds it against the fitting.

 

[baker556]

Thanks Scott.

I'm not certain the 3.0 VP engine has a fuel/water separation filter elsewhere, I haven't come across this. I could be wrong.

Thanks

 

[Lou C]

Post up a pic of what you have. Some of the 3.0 mechanical fuel pumps had a small filter built in & some had the large canister filter added on. If you have a canister style water separating fuel filter it will look like an oil filter…

 

[cck661]

I’m having the same issue, what was the eventual solution?