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Forum: Sonic

04-07-2008, 01:09 PM

Replies: 17

502 MPI vapor lock

Views: 5,325

Posted By GO4BROKE

That part number you listed is to add the...

That part number you listed is to add the mechanical pump:

862264A4 PUMP KIT-FUEL 862264A4 $371.73 $335.00 $0.00 $0.00 5.51 Lbs No Picture

Forum: Sonic

04-07-2008, 01:08 PM

Replies: 17

502 MPI vapor lock

Views: 5,325

Posted By GO4BROKE

There was a bulletin back in the day about it, I...

There was a bulletin back in the day about it, I don't remember what it entailed. If there is a fuel pressure test port (I can't remember), try opening it when it stalls to check for air. I have...

Forum: Sonic

04-07-2008, 09:50 AM

Replies: 17

502 MPI vapor lock

Views: 5,325

Posted By GO4BROKE

If your motor doesn't have a mechanical pump...

If your motor doesn't have a mechanical pump feeding the electric pump, there is a kit to install it. Merc tried to do without the mechanical pump around that year, it caused vapor lock issues. ...

Showing results 1 to 3 of 3