Repairing IP.

[IDIoit]

ok, i have a IP that has a weird issue.

it leaks fuel out of the top bolt for the high idle solenoid.

i must use this pump for now before i buy a new super moose.

would you use thread sealant on this top bolt?

i know the IP is damaged, but this is its only issue.


and my injectors need to be taken apart.

what would you do?

 

[BDCarrillo]

That should have just been a mount bolt that doesn't go thru into the inner housing, if I'm thinking of the right one. I'd rather chuck a washer/oring under that bolt before fiddling with getting goo all over

 

[IDIoit]

when i replaced this IP with my bull moose, i took the bolts out of the bracket, and it was wayyy too long.
may have cracked the aluminum also
a rubber washer isnt a bad idea.

 

[mblaney]

and my injectors need to be taken apart.

what would you do?

My experience with this is just buy new ones. I have taken them apart, ultrasonic bath, reassemble... they just seem to act up again.

Hopefully you can pop test them - if they pop test then leave them. If they fail just screw a new one in.

Pensacola still shows NEW Delphi's for $280 for eight.

 

[BDCarrillo]

I have a pretty simple diy pop tester from a porta power in my sig.

A simple ultrasonic bath may help loosen some carbon that's affecting the spray pattern, but that's about it. They really need to be put under a pop tester for pop pressure , drip checking, and pattern observation.

 

[IDIoit]

this is nothing more than a project rig. heavy on the project.
i will be buying new injectors and IP sometime in the future. but i want to mess with them and take them apart...
mainly because im curious.
i will be doing your same pop tester BD.

 

[OLDBULL8]

I've got some special washers with rubber seal on one side, I'll throw a couple in the tach box, thinking 1/4" bolts.

Edit: Your talking about the IP solenoid cover on top, right? Very little pressure under there, maybe 1-2 lbs.

 

[mblaney]

Maybe this will be helpful:
http://www.oilburners.net/forums/showthread.php?63111-Best-homemade-pop-tester-Ever

http://www.oilburners.net/forums/sh...pop-tester-quot-with-video&highlight=pop+test

Second link has pictures of the disassembled injector.

 

[ToughOldFord]

Spray pattern isn't important with an IDI since the combustion begins in the precup, not directly above the piston. The important matters are getting the fuel in the precup and when.

 

[BDCarrillo]

Spray pattern isn't important with an IDI since the combustion begins in the precup, not directly above the piston. The important matters are getting the fuel in the precup and when.

Spray pattern isn't as critical as a side shooting direct injector, but Ford and Stanadyne both say that the fuel has to be atomized well and shot within a ~45* cone. An injector that sprays drops out sideways won't work well for our IDIs...

 

[icanfixall]

Spray pattern is very important. The higher the pop pressure the finer the spray droplets will be or the atomization is finer. Some years ago a self made designer of newly modified injectors ground off the pintle tips and sold the injectors as the best thing ever. Those that bought that crap found out just how much crap they bought. They were leakers and *******. Basically no atomization at all. Just a dog like squirting on a bush look. Nuff said bout that.

 

[IDIoit]

this is a low pressure leak.
its leaking out of the boss of the bolt for the high idle solenoid bracket.
one of the weirdest spots for it to leak.

 

[OLDBULL8]

Just make sure when you put the cover back on, gotta be like the pic, or ya might have a run away.

Impossible to catch sometimes.

Found one, coming at cha. Don't fix yours. If you energize the FSS, easy to put on correctly. Jumper to FSS connection, Neg batt to body.

 

[OLDBULL8]

Is the IP solenoid cover I sent you the right part to fix the leak?

 

[IDIoit]

i dont think do, but i have not gotten that far yet, the IP is on my desk, but ive been so busy i havnt had time to mess with it

if it turns out i dont need those parts, ill send em back!!

thanks for the goodies and the laugh!

fuel is leaking out of the top bolt boss on the IP,

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