90 looper dumping fuel on #2

hondon

Lieutenant Commander
Joined
Jun 11, 2001
Messages
1,922
Ihave a 90 in line #ob311269 that is just pouring fuel out of the # 2 cylinder.Compression and leakdown are good .Carb has been gone thru and float levels are to spec,even put the needle on the pressure guage and it will hold to 20 psi.Float weighs out correctly.Soo,recircs or what?Before I go spliting that case ,is there anything we can collectivly think of that I have overlooked?
 

WillyBWright

Fleet Admiral
Joined
Dec 29, 2003
Messages
8,200
Re: 90 looper dumping fuel on #2

Fuel pump has a torn diaphragm. Rebuild it. Parts are cheap.
 

hondon

Lieutenant Commander
Joined
Jun 11, 2001
Messages
1,922
Re: 90 looper dumping fuel on #2

Thanks Willy but I,ve already been there.The pump was leaking externally so the diaphram kit was installed.Also reeds look ok at least from the outside.I suppose it is possible that I wrinkled a diaphram in the fuel pump rebuild but she ai'nt leaking anymore.I'll give it a second look anyway.Thanks.
 
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