Holley 4180 fuel rail leak

eriklane · #1 (**permalink**) 11-22-2012, 07:27 AM

Anyone else have issues with the fuel rail leaking? I put in new o-rings and it still leaks. The design seems to be suspect but this is how they shipped...simple to keep putting o-rings on it but is there something I can do to get this to stop leaking?

Rick Parker · #2 (**permalink**) 11-22-2012, 10:36 AM

Make sure you have the correct Holley "O" rings. There are "O" rings available of the same overall diameter but the diameter of the rubber "string" is smaller thus creating a shorter installed length and smaller overall diameter when installed on the fuel rail.

Madonna35 · #3 (**permalink**) 01-01-2014, 02:05 AM

Thanks for info.

Rossba · #4 (**permalink**) 01-01-2014, 05:33 AM

I put the larger bowls on mine with a centre hung float and twin inlets.
Fixed that right up as the transfer tube was a PIA