air around fuel pump

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bobmoore

Petty Officer 2nd Class
Joined
Mar 25, 2001
Messages
109
on my 1990 -120 force l-drive i have notice air coming out under the fuel pump somewhere when the engine is running ,haven,t notice it before ..on the timing ,i took out all plugs turn over engine till mark lined up with timing mark at 30degrees ..is that right ... thanks
 
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ODDD1

Lieutenant Junior Grade
Joined
Jan 23, 2001
Messages
1,054
Re: air around fuel pump

bob, air leak under fuel pump means you have a cylinder running LEAN...bad,bad,very bad......find out why or you can easily toast that cylinder..the Detonation Angel is watching you...be careful...LOL....
 
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bobmoore

Petty Officer 2nd Class
Joined
Mar 25, 2001
Messages
109
Re: air around fuel pump

problem fix .it was a broken fitting under the fuel pump where the hose goes to.i did a comp.check no.1 was 138-no.2 128 no.3 132 no.4 was 128 does that same ok for a 1990 120hp force,i used a old checker and the engine was cold ...thanks
 
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