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Whats the best way to spot a fuel leak,

Posted: Mon Oct 13, 2008 11:28 pm
by n1ght28
hey,
got a 318i touring and i know I´ve got the classic leaky fuel line cause i can smell it on start up but can´t find the bugger anywhere, just wondering whats the best way to spot the leak, engine running or not?.

where are the most likely places i should look,
any help would be great,
Cheers,

Re: Whats the best way to spot a fuel leak,

Posted: Mon Oct 13, 2008 11:32 pm
by leeparkes
rubber hoses going to fuel rail
they crack! (mine squirted)

Re: Whats the best way to spot a fuel leak,

Posted: Tue Oct 14, 2008 8:04 am
by daimlerman
On the M40 engine there is a sneaky well hidden hose buried under the inlet manifold,you need to remove the top of the manifold to get at the swine.Another place to check is at the point where the filler pipe attaches to the tank. Have a look under the car and grab the flexible rubber pipe between the tank and filler pipe.The stub pipe into the tank should not pull away.... :cry:

Re: Whats the best way to spot a fuel leak,

Posted: Tue Oct 14, 2008 6:52 pm
by chief
on the fuel filler neck
check for blotchy underseal