Quote:
Originally Posted by Phillytwotank
I'll chime in with personal experience chasing air in fuel problems.
"off the rack" copper washers don't seal the same a as MB "sealing rings"
I had put all new copper washers in mine still to be troubled by air
Pulled all the original sealing rings off at a JY and replaced the copper and solved the air problem.
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I did this dance with the seal on top of my fuel filter housing. I eventually put the original washer back in with a rubber gasket of the appropriate size and that stopped the leak.