fuel shut off solenoid another reason get your IP rebuilt

[after oil]

http://www.delica.ca/forum/delica-on-hw ... -3723.html

i am starting a new thread on this so people can know about their fuel shut off solenoid.

the fuel shut off solenoid, when energized allows fuel to the IP, when you turn you key off, it deenergizes and stops the fuel. in other words: in a gasoline vehicle when you turn the key it quits sending a current to the spark plugs thus no ignition. in a diesel because there is no ignition the engine must be deprived of fuel to shut off.

its on the back of the IP with some wires going to it. it bolts in like an oil pressure sender. i think there must be a coil or a magnet inside and a piston. when enrgized the piston is pulled back allowing the fuel to pass. when de-energized the spring pushes the piston and stops the fuel.

when i was in E4 in duncan after breaking down john took the old solenoid to the bench to test it out. with a battery charger he could give it power. it worked about 4 times out of 5.

i will post some photos soon of the old solenoid

i wonder if when one has their IP rebuilt that the fuel shut off solenoid is replaced.

[dfnder]

Thanks for the info, I have been looking for something that functions in this way to use as an anti-theft precaution. Normally I tell friends with desireable vehicles to install a kill switch which usually is accomplished by blocking power to the fuel pump. Now I know the deisel equivalent :)

[jessef]

i wonder if when one has their IP rebuilt that the fuel shut off solenoid is replaced.

The only place I know that actually replaces malfunctioning internal/external IP parts is Mardy at Amazing Auto.

I believe Glen at CC Auto's does as well, but I can't speak from personal experience. (chime in if you can)

My IP was in poor shape. You couldn't tell just by looking at it but once it was taken apart, rebuilt and put on the calibrating machine, it was night and day. My fuel shut off solenoid (what you are talking about) was replaced as well.

VERY IMPORTANT

Any shop you take your Delica to and have the IP 'rebuilt', make sure you are getting the true 'rebuild' work done and not just a teardown + seals replaced.

Related (see here):

http://www.delica.ca/forum/complete-del ... -3602.html

[Adam]

I just got a used IP to replace my malfunctioning unit from Glen at CC Auto. A lot cheaper at $450 than for a rebuild which was $1,200.

[delicat]

Same here, got mine rebuilt through Mardy and it was a full rebuild (not only seals) and re-calibration. The total cost was under $1000. My truck runs a lot better now. Just changing the seals would have simply stopped the leak without improving how she ran. If you have to adjust the sealed fuel screw at the back of the IP then you're asking for problem... It might help to reduce smoking but it will also steal power in a already under power vehicle. Not the best scenario.

For some reason it seems like all IP are not inter-changeable. I'm not sure why but take one IP from a Delica and try it in another one and it just won't fit properly. Don't know if it has to do with models within the Delica family? So before you go and swap with another IP make sure everything fits/works nicely. I think Jfarsang can comment on this one...

David

[jessef]

The throttle linkages between the standard Exceed and Super Exceed/Chamonix models are different. The IP body on one has thread holes while the other doesn't. Mounting plates are different as well.

Another thing with different IP's is that I know a fellow who runs an Injection repair center in Vancouver. He's been in the business of rebuilding IP's for a long time.

He said that changing one IP for another is not the proper way to tackle an injection pump issue.

Case in point, my IP and a replacement that looks identical had different #'s stamped on it.

The same injection pump body, the same exterior components, but the last 4 digits were different. He said that it was to do with the length of gov sleeve inside the pump body.

Putting it into another Delica would result in a not-perfect functioning pump for the system.

He showed me different VW Bosch IP's that look identical to our Delica pumps and showed me the small differences between them.

Swapping one out for another may be an alternative option, but I took an injection pump specialists recommendation to always have the original rebuilt.

My 2 cents.

[JMK]

My 2 cents.

My tendancy would be to agree. But further, I'd like an opinion on this, should you redo your timing if you remove and reinstall your IP?

If yes, then let's go back to the idea of installed a used IP. It is after all, still a used IP with a finite life even if it is functioning better than your old one. So sooner or later, and it very well could be 'sooner', you'll need to replace it again. So if you do, do you then need to fork out again for timing? Then on top of that the potential issues identified above about them all being different and it seems much safer to suck it up and just rebuild the unit in the first place.

It a similar question with the injectors themselves. For example I just spent $500.00 having my injectors rebuilt, when as an alternative I could have spent $200.00 just to replace their nozzles.

And BTW, just driving home listening to CBC they said we are spending $1,500.00 per household to pay for Afghanistan. Funny, my immediate thought was, 'that's almost an IP plus injector rebuild'. Shows what I'm preoccupied with these days.

And, I'm planning to do the same with regards to using it for theft deterrance as soon as I get a nice unobtrusive switch and figure out a good place to put it.

[RaddCruisers]

My 2 cents.

But further, I'd like an opinion on this, should you redo your timing if you remove and reinstall your IP?

[...]

It a similar question with the injectors themselves. For example I just spent $500.00 having my injectors rebuilt, when as an alternative I could have spent $200.00 just to replace their nozzles.

[...]

To address the questions:

Yes, any time you remove an IP you should check your timing and re-set it as needed. The timing should also be checked before and after changing a timing belt, but it is not a 100% requirement, just a very good idea. If the shop has a dynamic timing tool for a diesel, this is pretty quick to do... the "before" check is to see where the pump is at before doing any work, which is pretty much a requirement if you want to re-set timing using a dynamic method back to where it was prior to the work. Static timing is a different kettle of fish... takes a little longer, but yields great results as well.

If you replace the nozzles, the injectors should be put on a test bench and checked for opening pressures and shimmed accordingly. It's nice to hit the high end of the spec. if you can.

~John

[jessef]

But further, I'd like an opinion on this, should you redo your timing if you remove and reinstall your IP?

If yes, then let's go back to the idea of installed a used IP. It is after all, still a used IP with a finite life even if it is functioning better than your old one. So sooner or later, and it very well could be 'sooner', you'll need to replace it again. So if you do, do you then need to fork out again for timing? Then on top of that the potential issues identified above about them all being different and it seems much safer to suck it up and just rebuild the unit in the first place.

That's a little misleading.

The likelyhood of the pump body to crack or blow up to bits is 1 in a trillion.

With that said, when it is properly rebuilt internally/externally and setup, it will be in the same condition as a new pump. That is because the parts that have worn out are replaced with new one's, reassembled and calibrated to spec.

Your theory is actually reversed.

If you buy a used pump and put it in, the likelyhood of it failing 'sooner' rather than later is high.

If you have your original pump properly rebuilt from ground up, the likelyhood of it failing 'sooner' rather than later is very low.

The reason I wrote above.

So if you keep replacing your injection pump's with old one's each time one fails or a component fails, in the long run, you are spending $ X amount more than a factory rebuilt/spec'd pump with a warranty.

If I was to buy/sell my Delica and not keep it in the long run, that is an option I would consider. To simply replace it with a used one hoping it's lifecycle will be decent. But keeping it, choosing a complete rebuild.