Engine/Transmission (1998.5 - 2002) Permanent Removal of Lift Pump

[JasonBlock]

I took the opportunity to remove my factory lift pump, as per my post in the 911 section, my VP44 crapped out. Installed a FASS 2 weeks ago, and I suspect I had a weak diaphram already. Anyway, with the intake and VP44 off, I ripped out the old lift pump. Disconected the water in fuel sensor and fuel heater electrical, and covered up the ends with electrical tape. I left the hard fuel line to the tank as is, took the short line from the lift pump to VP off with the lift pump. Did I miss anything? As the old fuel lines are redundant now, I shouldn't need to plug them should I? I wish there was some way to reuse the fuel heater, living in Canada. Should I put the old lift pump in a hydraulic press:-laf?

 

[darkhorse]

I wish there was some way to reuse the fuel heater, living in Canada. Should I put the old lift pump in a hydraulic press:-laf?[/QUOTE]



Scroll down this page to the heater wrap. It might be just the ticket for you.

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[JasonBlock]

That's an interesting thing. I suppose a guy could wrap it around the FASS fuel filter, should work similar to a factory heater.

 

[DWeiler]

I just kept the stock heater with my Airdog,ran from the pump (located close to the fuel tank) into the "empty canister/heater and then out and on to the VP. I hope this helps a bit with the winter weather. No gelling problems yet but i do run lots of additive(Stanadyne).

 

[JasonBlock]

I was thinking of modifying the lift pump just to use the heater. Did you change the inlet/outlet to increase flow? I was a little concerned of losing pressure there. Thanks for the input, perhaps we'll get lucky and have a mild Alberta winter.

 

[DWeiler]

Inlet and output from the cannister remained the same(stock)---should not be a problem, it has been 3-4 years since i had it apart,can"t remember---sorry. I have had no problems this way so far and my pressure is about 16-18PSI and i can"t pull below 14 PSI with all in my sig. A few years back when i was messing around under my hood in -25 below i did reach over and feel the cannister and it was fairly warm to the touch even in the cold weather, so i know the fuel was getting heated. If i was to do it over again i would mount a inline heater(RACOR or such)close to the line coming out of the fuel tank before the Airdog pump to heat the fuel before the filters. i think this would be the better way to go, my current set-up is working and i should leave well enough alone,but i may tinker with it one day. I hope for a mild winter every year considering i work outside most of the day,better than my folks 2 hours north of Grand Prairie---it has hit -40below without the wind chill a few times this year.

 

[darkhorse]

I put AN fittings on my stock fuel filter & I don't see a pressure drop.

 

[AFoulk]

I'm running my FASS without any kind of fuel heater and havn't had any problems yet, but the coldest we usually see around here is probably 0*F. I just add plenty of additive.

 

[CEkstam]

Here's an idea for a easy fuel heater. Back in the 60's when I first started running RC Hydros we wrapped a 1/4" copper tube around the engine head, put a brass pickup tube behind the prop to channel the prop wash through the tube to cool the engine. If you would wrap a 1/2" copper tube around the exhaust pipe (tightly) and clamp it, then run the return fuel from the AirDog (or what ever type fuel system you have) through it back to the tank, you would have a very cheap and effective fuel heater. It would definitely keep the fuel in the tank warm.



Just a thought!



Charlie

 

[JasonBlock]

I'm running my FASS without any kind of fuel heater and havn't had any problems yet, but the coldest we usually see around here is probably 0*F. I just add plenty of additive.

We can get down to -33C (-25F) here, although not for long. The shuttlewagon we use at work to pull rail cars doesn't have a fuel heater either (has the same Cummins in it!) and it doesn't freeze, but it doesn't go down the road at 120 kph either! I've got a winter front on it, closing up both grill and bumper holes, which will help a bit. Built a stainless box around the FASS to keep rocks out, which while having a zero R value, it will also keep the wind off the filters and pump.