AI #67 R4 diagnosis..... drum roll please....

[marshall_mosty]

....Bad fuel pump.... AGAIN!!!!!

I replaced it with yet another new unit. The car should fire tomorrow morning and "maybe" make a parade lap around the block.


So to summarize:

1. November 2005 MSR-C: At track replaced 1 fuel pump due to missing filter sock and bad filler neck/tank gasket. Missed 2 races.

2. Feb. 2006 MSR-H: At track replaced 1 fuel pump due to missing filter sock due tosump in tank that had broken loose. Missed R1 and car died in R4 last lap.

3. March 2006 MSR-C: Prior to race replaced fuel pump, filter sock, tank, and wiring. Pump died during R4...

4. May 5, 2006... Replaced pump with new unit. Crossing fingers for a good showing in H-town in two weeks.


Tally for Mosty Brothers' Racing #67
--- 4 fuel pumps
--- 5 filter socks
--- 1 tank
--- multiple sets of O-ring gaskets
--- 1 filler neck/tank gasket

I'm so glad for lifetime warranty.....

[AI#97]

I think it is time to look upstream and see if there is a pinched line or something burning them up (fuel filter in backwards?). If that isn't it, you need to consider getting a new walbro pump or something more in tune with racing duty than the autozone specials....

Good luck and I hope you kill the gremlin soon so you can enjoy racing again!

[jeffburch]

I think it is time to look upstream and see if there is a pinched line or something burning them up (fuel filter in backwards?). If that isn't it, you need to consider getting a new walbro pump or something more in tune with racing duty than the autozone specials....

Good luck and I hope you kill the gremlin soon so you can enjoy racing again!

Yeah, agreed.
You aint found the problem yet.
Walbro 225gph plus inspection of all other parts.

jb

[gt40]

Check power to the pump & ground too. Dirty power may be a factor, too.

[Mike Bell]

Hey Marshall,

Looks like you whupped this gremlin, good job! Nice to move onto a bigger more expensive problem, huh?

[marshall_mosty]

Like a new front suspension!