Experience With 2nd Hand Injectors

[benl1981]

I have some S15 injectors that have been sitting around for 6 months to 1 year. Is there anyway to clean them quickly at home (just immerse them in fuel?)

I have been quoted $40 each injector to replace o rings, pintle caps, flow test at full open and also pulsing.

The injectors being from S15s are probably only 3-4 years old.

Is it overkill replacing the pintle caps? Do the pintle caps protect the nozzle?

Or anyone know somewhere in Sydney that flow tests for about $10-20 each

Cheers

[Birnie]

You've probably already my post elsewhere but anyway.

I din't bother replacing pintle caps as they weren't busted......i wouldn't bother.

I cleaned the gunk of the end of the injectors with my finger, haha...seriously !

My 2nd hand ones were petrol stained, also a little bit of gunk which just rubs off.

The mesh stuff was a tad off colour but i only knew that because i had new ones to compare to.

I also used the old o-rings.

They dropped in ok with no probs and car started straight away with the right settings on th FC

They also spent about 4 months stored in a drawer wrapped in bubble wrap.

As always with 2nd hand stuff, there's a risk.

Have a look at em, make a decision and go with it, that's what i did.

Personally, if they are only 4years old, and they look OK, i reckon you'll be right.

also, when i removed my old ones, there was heaps more gunk on them and they worked fine.

Some people will prolly disagree and i bet there's some that will disagree ALOT but thats my experience to date.

Also mixed 4 brand new with 2 oldies and all good.......

[Andi]

I'm having mine cleaned, flow tested and tested for latency when I get them. An EFI store in Casula quoted me $22 incl. GST over the phone for a service on each injector, thats ultrasonic clean, flow test and replaced pintle caps and o-rings.

[Birnie]

nearly half price already..

Post em!

[MANWHORE]

Replacing pintle caps is completely unnecessary. they don't go off or anything in any decent time.

think of all the r ugly poos out there that are up to 18 years old (89 models)!!!!!

they're still running injectors without ever having been cleaned. your ones being 2000 or so are only 7 or so years old.

Definitely replace the o rings.. they're not expensive. they might not leak if you don't, but they're cheap, so save yourself the hassle. 40 each is 240. What sort of a circus or are they running.

Forgot the name of the place, but out south of sydney, bloke ultrasonically cleaned them and changed the orings for $110 inc gst.

If you want, you can rig up a circuit to open the injectors, and buy an ultra sonic cleaner. It's useful for doing other stuff too. That's what my friend did, but he's not willing to do other people's stuff for legal liability reasons.

[dead32]

$40 each is to much, i would have them flowed and latency tested, just to make sure theyre fine, its 150odd for piece of mine that the spray pattern's are fine and they all flow with x% of each other.

[benl1981]

yeah. Nathan at grey imprts does them for about 20-25, I think I will get them done. Thanks fellas!

[rob82]

How do they latence test them? Are their results based on pressure drop across the injector and also differing battery voltage?? I would definately have them cleaned - just for peace of mind - dont be cheap.

Edited May 1, 2007 by rob82

[GeeTR]

5000rpm + 1.2bar + clogged / malfunctioning injector = Det

A few $100 would buy some piece of mind me thinks

[MANWHORE]

nathan's the one! he was the one who did the ones on my ford. good bloke, honest top bloke. annandale i think it was from memory.