ATTN Walbro Pump Owners - Performance Forum

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ATTN Walbro Pump Owners
Thursday, May 05, 2005 10:29 AM
Does anyone else have issues with this pump when it comes to starting the engine? It usually takes a while to start the engine from a cold start. However, if I hold the key in the ON position for a while (enough to hear the pump warm up) and then ignite, it turns right on.

I did a search, and I could only find one other person who's had this same problem with the pump.



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Quote:

Originally posted by MSD
I have an 03 5-speed Cavy, and when I race.. I shift at 6300-6500. That method (coupled with the fact that the guy probably couldn't drive for @!#$) allowed me to keep up with/have a slight lead on an 04 Mustang GT.


Re: ATTN Walbro Pump Owners
Thursday, May 05, 2005 1:31 PM
Quote:

# NOTE: Do NOT forget to pull the O-ring out of the fuel line if it does not come out, and transfer it to the pump! I forgot to and had a nasty airlock, forcing me to prime the pump for 30 seconds or more every time I wanted to start the car. Also make sure to lube the O-ring to get it back into the fuel line (spit DOES work fine).


# Be careful when putting the pump up into the fuel feed line - the rubber O-ring should be lubed with some grease, oil, or spit (hey, it works) so that the O-ring slips easily into the feed line. If it does not, the O-ring can kink or tear, and the car will be hard to start after sitting a few minutes, as the kinked/torn O-ring will allow the fuel to bleed out of the feed lines. The symptom will be that the car will take several seconds to start after sitting more than a minute or 2, but starts right up if you turn it off and then immediately start it back up.



Found this on a dsm site. Jumping Jesus Christ I hope thats not the problem, as getting to the pump in our cars is a royal pita.



__________________________________________
Quote:

Originally posted by MSD
I have an 03 5-speed Cavy, and when I race.. I shift at 6300-6500. That method (coupled with the fact that the guy probably couldn't drive for @!#$) allowed me to keep up with/have a slight lead on an 04 Mustang GT.

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