hello. my fuel injectors recently started clicking and my car started running rich. so i know there's something wrong w/ my fuel injectors. i was just wondering if you could rebuild fuel injectors and if it'd be cheaper than buying new ones? thanks a lot..

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bored_blitzen
yellow '86 camaro w/ 2.8L multiport efi
no money so no mods (yet)

 

Fuel injectors aways tick. But you can send them out and have them cleand and flow tested i think TOM P had it done

 

mine never ticked before. i have fuel along my manifold by the injectors so would that be from the o-rings? would i have to send the injectors out to get them rebuilt or would i just take it to a machine shop in town? or would it just be worth it to buy new ones? thanks a lot for your input..

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bored_blitzen
yellow '86 camaro w/ 2.8L multiport efi
no money so no mods (yet)

 

If you have fuel int he fuel rail region, yes thats your O-rings... relativly easy fix (PLEASE BE CAREFUL, that fuel rail is SHARP, I found out at the junkyard when i was pulling one... I wasn't exatly sure how the injectors came out, so i pushed... slip.... knuckles, pain blood... lots and lots of blood... not to mention the fact we're playing with raw fuel... no smoking!)

As far as the injectors yourself... you could send them out to Rich J at cruzinperformance.com and he will evaluate their flow characteristics, check to make sure the internals are operating correctly, clean them, flow match them... all for 10 dollars an injector... if one injector is out of range, he will swap in another for an additional 5 dollars an injector... everyone who has used him absolutly loves him... I've delt with him with some questions and he was very knowledgeable.

You could very well take the injectors to your own machine shop... I'd talk to people about their service beforehand though... here you know Rich does a great job for a damn good price... whereas your machine shop might rip you off and soak them in Brakleen for a few hours...

New injectors will cost you around 180-220... and that is certainly an option.

It's up to you... as far as rebuilding them like you would rebuild an engine. No. The most you can do it take the pintle caps off... and that doesn't really do much.

Hope that helps!

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1985 Camaro SC - 2.8L, auto.

C'mon, spin 'em for papa...
http://www.xenodrgn.f2s.com/Frontright.jpg

 

I sent Rich Jensen my spare set of 2.8 injectors; he received 'em, flow-tested/cleaned/blueprinted 'em, and had them back on their way to me in a week!! Best service I ever used... and he answered a lot of my questions, too. He works with tons of injectors, and he'd probably be more experienced than a local shop. (A machine shop wont' do 'em; you'd need to find a specialist or something.) Plus, when he sends the injectors back, he pre-installs new pintle caps & o-rings for free!

And yeah, injectors do "click" as they work. Of course, they shouldn't be the "loudest" thing in the engine bay...


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-Tom P (Hot rodded 1986 Firebird 2.8l)

 

I have a '86 Camaro 2.8, I rebuilt the topend. The oringal injectors had the pintle caps. I got another set from a '86 Camaro and they were total different. They had no pintle cap, they had just an opening on the bottom. I used the ones with the pintle caps, 1 cap was missing. Questions are...is it OK not to have the pintle cap missing and which ones are better?

 

If they were the original 1986 Bosch injectors, they should've had pintle caps- the previous owner might've cracked them all off, and not put any on. The car will run without pintle caps. The major concern is the o-rings...

If the previous owner installed "Multec" injectors from a FWD 2.8/3.1 MPFI motor, those wouldn't have pintle caps. I think Accel has pictures online of both models.

But 2.8/3.1's ONLY got the Bosch pintle-style injector from the factory...


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-Tom P (Hot rodded 1986 Firebird 2.8l)

 

Thanks TomP...which ones do you think are better?