fuel shutoff solenoid

[swankmetal]

so if i blow the tip off a brand new solenoid in a week, does that mean i should back the fuel screw out a little?

 

[ARedetzke]

Or get used to using the manual shut off. There has been a ton of discussion about this. I think it has been decided that if you want the high performance, that you either have to be willing to buy a shut off solenoid every couple weeks (you can't get just the tip), or run a cable to the manual shut off. I think that I saw someone post about trimming the rubber tip somehow so it doesn't stick out so far and get torn up, not sure how that worked out. FWIW, I've been using the manual shutdown for about 3-4 months now, you get used to it. The other alternative is turning down the pump, like you said. If you do a search on this, you'll find a ton of info.

AJ

 

[BushWakr - RIP]

I tried that on a pooched tip once... the rubber is fairly thin and is mated to the steel center piece so when you try to resurface the tip you hit metal before you can remove the blemish/chip.

The tip is chipping from excess pressure bud... . = lots 'O fuel ... .



pb...

 

[swankmetal]

I think that I saw someone post about trimming the rubber tip somehow so it doesn't stick out so far and get torn up



hdm48 said that he turned the rubber down . 080" and got a longer spring to take up the slack. how much would you say you tried takin off, pb? anybody ever find a source for just the plunger?



thanks

dave

 

[SteamDave]

I tried turning the tip down like in another post. Didn't do me any good still peeled the corner off :{ I finally gave up after 4 of these things and put a cable on it. Bought one of those good ones with the plastic coating inside and out, really smooth action, now I don't have any problem turning the truck off

 

[bgilbert]

I guess I haven't reached the fueling level you guys have with going through all those tips yet.

Would metal flakes/pieces inside the pump have anything to do with the tearing up of the tips?

 

[Stomp]

I just replaced my solenoid again. It lasted about 6 months maybe less I can't remember when I had to replace it. It was all chewed up again. I finally checked my fuel pressure the other day and I have 15psi @ idle and 10 at WOT. I guess that might have something to do with it. I didn't think about sticking a magnet in there to see if there was any metal down there. That could be the cause of it. I know when a pump starts going bad or if you break an internal spring you can check to see if you have metal under the solenoid that usually tells you that something went wrong.



Stomp

 

[bgilbert]

Stomp, what kind of lift pump do you have with those pressures?

 

[SteamDave]

I haven't found metal under the solenoid when the tips get torn off. And yes I have looked right down into the pump with the pin out. When I put the new injectors in last month I did find right under where the lines screw on to the injector, some kind of black "fuzz" (the only thing I can think of to describe it) at the entrance. I just figured it was the remnance of the rubber tips

 

[Stomp]

Carter CRT-P4601HP

Here is the pump that I am running. Seems to work pretty good. I wish i had a mechanical one that could give me the same numbers.

 

[swankmetal]

is that the one from piers?

 

[JLEONARD]

Stomp, If you are using an electric lift pump, why is the engine still running when you turn off the power to it? Wouldn't that stop the VE?

Jay

 

[Greenleaf]

Been there and dun that.





Bill, give it time. We *just* installed your VE and a NEW shut-off solenoid.



-S

 

[BushWakr - RIP]

"... . Stomp, If you are using an electric lift pump, why is the engine still running when you turn off the power to it? Wouldn't that stop the VE?... . "



No not necessarily... the VE has a supply side pump that is capable of drawing it's own fuel... the limitations are just a matter of distance and "head height".



pb...

 

[Greenleaf]

I have a VE powered bus here that ran with out the assistance of a known good lift pump. That VE was pulling fuel from the tank somehow. Hard to say how long it operated that way.



Scott

 

[JLEONARD]

OK. I know the VE WILL pull fuel... . my old VW diesel with the VE pump had no lift pump in the system. .

But I guess I incorrectly assumed that an electric pump wouldn't allow fuel to flow thru it if shut off.

It's all clear to me now! I see the light!!

Jay

 

[BushWakr - RIP]

I was surprised to read in the spec's for the VE that it was/could pull it's own fuel.

I guess that's one reason why we seem to get away with nearly "0" supply pressure from the lift pump on most of the trucks... . seems only the ridiculously fueled trucks show signs of fuel starvation... ...



pb... .

 

[Stomp]

Yeah when I cut the power it would start to idle down and then it would finally shut down. It was supplying it self just not enough. I also had a little problem with my turbo timer. It was sending power to the solenoid with the key off. I unhooked it and everything is fine now.



Stomp