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I believe my problems were caused first by contaminated fuel gumming up the first, tired fuel pump. Then the same stuff gummed up the second pump which I sent to kinarfi for autopsy. It also gummed up the Bosch which lead me to change fuel, fuel lines and filter. All appears good now. Never thought about changing the regulator but I'll keep Lenny's suggestion in mind. As far as the check valve goes, I noted the it was non functional, and I had been having trouble starting it for awhile. My thoughts on this are the check valve keeps some fuel in the pump for start up lubrication and possible minimal back pressure to help keep the pump primed. When I installed the second pump without the valve, it was hard starting. Installed the Bosch with an inline check valve and it started about the same until it gummed up. I also had installed the valve about 6 inches from the end of the valve and up-hill. Changed fuel, lines, cleaned out pump with carb cleaner, installed valve as close to pump as could and it all works like a charm now, even after sitting for a few days. I also installed a direct power switch to the pump bypassing the standard wiring. I now turn on off pump with toggle like a race car and it runs constant when starting. I wanted to eliminate any chance of a relay problem causing more headaches. A separate toggle switch for the pump may not be for everyone but I am used to having to turn on off multiple switches to start/ stop a vehicle from racing. I am not sure my thoughts are correct but it is working. Plus I can't imagine any manufacturers putting the valve on their pumps if it wasn't needed for some reason. Could save them money. Anyways just thoughts from a non-mechanic, engineer, etc... Just my experience and thoughts.

If they had done this back when, I would be driving one instead of the T2... Rally buggy is more my style ..... Don't get me wrong, I like my T2, just liked the Spyder better but considered it under powered at the time with the twin engine..... Hmmmm wonder if I could swing a deal with T2 as trade in ???

Tricky and clever I'm not, patient I can be. Removed old gas. New gas, lines and filter. Sprayed both inlet and outlet of pump with carb cleaner (based on what Kinarfi found during last autopsy, thanks again). Buttoned it all up, said short prayer and it all works again. We'll see how long this lasts. Put AR back in safe but still have 44 special handy. This is the West after all, I can shoot a lame horse.

#€£¥*#~¥£€ it..... The Bosch won't work now... I must have some contaminated fuel or something.... Getting power to pump but no sounds nor function... Getting awfully frustrated, have moved my AR15 from safe to next to back door........

Good to hear the autopsy report.... Lol... Hope the "green" doesn't kill the Bosch...

Ok, here's my thoughts on my fuel pump experience. My stock pump died. The Hayg pump went in ran then quit a week later after sitting. Noticed the out nipple had a check valve that was stuck and bent. Removed check valve. Second Hayg did same thing. No check valve. Bosch pump in. Couple days later it doesn't want to work. No check valve. Bang it and it starts working. Go with direct 12v line thru a toggle switch and is still reluctant to work. Install in line flow check valve and the pump appears to work great even after setting for a few days. So I guess it needs that check valve to function consistently.

He also has a used header in his eBay store that a new model trooper would benefit from.....

Can find One way vents for $5.95 on Amazon.....

I would recommend a tip over valve in a vent if your redoing the tank. Eliminates need for vented cap and reduces fire hazard if you windup on side or upside down.....

Rick, Attendance is up in the air right now.... With wedding and stuff I haven't gotten a firm answer from my boss..... Plus I'm intimidated by the potential power festival going on ......

Let's see, Lenny's engineering Skills Rocmoc's driving skills Both of their build skills Would equal an interesting and formidable team in whatever they raced Oh, I would be a relief driver. ;-)

I've heard that the Renegade stock is just about as fast as the Trooper in top speed.... Haven't seen it myself.... Don't know about acceleration tho....

Hey sounds like fun... Any videos? Pictures ? Have you modded the 800 motor? Shocks ? I liked the Viper look and almost bought one instead of my T2..... Good luck and please keep us informed....

Heh, sounds like a beast..... I guess I better get busy and swap in a Subaru WRX engine!!! Yeah, right, like I could do that .... Lol Can't wait to see it run Lenny...

Very nice Lenny... Doors look great.... Looking like something from "Mad Max 2012"

Look at this I just ran across.... http://lasvegas.craigslist.org/rvs/2862084741.html

I broke out the wallet and ordered the Bosch....

Or the slightly cheaper, GSL392 that has a 255lph rating and is high pressure. Does the higher LPH rating make a difference? Will the excess be fed back by the return line from the regulator to gas tank?

Damn, sorry about the jinx.... Kinarfi, you may want to add a caveat to the Hayg listing in parts thread... "Buy at own risk" With that said, anyone have a Walbro part number that would work? Their GSL394 is listed as "high pressure" and 190LPH..... Just trying to see what else is out there besides Bosch.....

I got looking more after lowgear said he been running one for awhile....

Question: I have been using the barbed output end from the original fuel pump. Yesterday I was looking at it and noticed that it had a check ball with spring type system built into the barb. Closer inspection it looked like it was jammed somewhat and possibly blocking a lot of the flow. Is this possibly the culprit that creates too much back pressure and smokes the pump? Is there any consequences if I remove the check ball from the barb end? Am I totally off base here? Kurt

Hmmmm, with all the recent/past cage mods around here, maybe there should be a thread to show them all off in one place ???

So far the sales people are baffled and I'm waiting to hear back again. They claim to not had 2 in a row bad before. After th first Hayg died, I put a new filter inline before the pump. Even when I go 12v direct from battery (which is charged and good) the pump does nothing.....

Ok.... Here's one for you guys..... Put in the second Hayg fuel pump, starts right up, runs fine... Buggy is on trailer this whole time mind you... Week later the pump is dead just like first one did.... I turn off main elec switch when I shut down buggy each time.... Any thoughts what might be killing my pumps ??? Kurt

Ooooooooh. Lenny has a roll cage project. Can't wait to see that thread. I've got some ideas I'd like to try myself.