leaking injectors

[Blue95]

hmmm I would not use liquid gasket at all, I would get a new one or a true straight one from a junkyard

 

[So broke]

hmmm I would not use liquid gasket at all, I would get a new one or a true straight one from a junkyard

that's what i thought. damn 190$

anyone got one for sale?

 

[DRAGGIN95]

There was a guy selling used throttle body's in the for sale section for a lot cheaper than that, I can pick up a complete throttle body locally for $40.

 

[scott2093]

lol...
This seems like a good place..
I saw the top of my injectors seemed a bit wet. I have an injector o-ring kit a member here sent me because he's awesome and his Yukon is too.
I noticed my injectors are missing the microscopic screens in the side? Are they needed?
They're mentioned here

TBI rebuild - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TBI rebuild The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board

67-72chevytrucks.com

but not here from earlier in the thread

GM Throttle Body Injection 1987-93 LO3 5.0L and LO5 5.7L engines - Chevy Thunder

This page is dedicated to the owners of these vehicles equipped with GM's dual point fuel injection (model 220 tbi). Although just a small number of cars were

www.bosmobil.com

Was thinking my gaskets look ok and the regulator diaphragm seems good enough. Kinda thinking I wouldn't need a kit but, if these are important maybe I should?
Where did they go?eesh..

 

[Schurkey]

Piece of glass for flatness, sandpaper, and the top of the TBI unit.

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A guy could do the same to the gasket surface of the bottom part of the injector pod. Be sure the various O-rings are in place and undamaged.

 

[scott2093]

dang....I just looked closely and guess I'll be doing this... thanks! of course I just reset the spring....

So those little itty bitty screens? 1 on each injector....Are they important?

GM TBI Filter

GM Throttle Body Injector Filter TBI Side Micro Filter

injector-rehab.com

 

[scott2093]

I found the tiny filters. 1 was on the intake and the other was lying on the workspace. Guess they popped loose when removing the injectors... scary...
Went ahead and bought a kit and put new gaskets and everything in... Fired up nice... Don't see any fuel anywhere but will keep an eye on it.... Pretty sure it was the o-rings but we'll see...
That center area had just the slightest amount of coloring just like your last pic Schurkey. Mine looked a little better...I got timid and left it..
Took a minute to realize you have to sand over a bit of an edge...the glass was enough thickness...