Not sure why you are asking, but a few years ago there were several people having problems with counterfeit Walbro pumps failing early. At the time, a 'Walbro' selling for less than about $100 was a warning sign that it might not be genuine.
Not sure why you are asking, but a few years ago there were several people having problems with counterfeit Walbro pumps failing early. At the time, a 'Walbro' selling for less than about $100 was a warning sign that it might not be genuine.
I was up until about 5am wearing out the search engine on why the truck could be falling on it's face after a hard launch. Now I've got a checklist of things I'm gonna do before the weekend comes. There's an 1/8th mile track day coming up this Sat and a friend of mine with a modded Cherokee SRT (who never met up to run me last year) is finally going to the track, go figure. I really gotta stop dicking around and get a Datamaster.
https://www.youtube.com/watch?v=ghFBvBmXv4E
Fuel pump is probably 10+ years old. I did hear about quite a bit of Walbro's failing. Were most of those Ebay knock-offs I assume or were they actually genuine Walbro that were failing? Either way mine's an oldie.
One way to know for sure if it's the pump, or a loss of pressure by the fuel sloshing rearward on launch: Put a pressure gauge on it, snake the hose out from under the hood, place the gauge under a wiper blade so you can read it through the glass, and launch it. If the pressure drops, then comes back up, it's an in-tank problem. Add fuel, and try again. If it still does it, probably the pump.
I'm not sure what the knock-off failures were like, or how long it took. Genuine Walbro failures are like <1 per hundred. Ron Gregory has some failure stats on his site. If it's running 10+ years later, its probably genuine. Nothing from China lasts 10 years.
I've had the fuel slosh issue with upwards of half a tank, but everyone fuel gauge may read differently. I don't race unless I'm above 1/2.