LS1RX7

John B.

Did you replace the injector o-rings, after removing the fuel rail? The helm manual states that the o-rings must be replaced w/ new o-rings after removing the injectors so I called my local chevy dealer for a price, $63.00 for a kit which includes the o-rings, there is no part # for just the o-rings.I'm not sure if I should use the old o-rings or pay 63.00 for new o-rings??????

bgreen

I've re-used injector Orings before without problems, though it can be risky, as they can be destroyed easily. I've installed & reinstalled the injectors on our Cobra a couple times without any leaks also.

You should *definitely* not pay that much for O rings though. I don't think the O rings on an LS1 are any different than the typical fuel injector O rings used in any of the port fuel injected cars by GM in the last decade, so maybe you can cross reference them. I know I have about 2 dozen in a bag at home from AC Delco, and I'm damn sure I didn't pay that much <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Ah here's the part number I used for the O rings on my Syclone: GM #17113544

Not sure if that is a kit or not, but I do know that they do fit any of the aftermarket injectors (36s, 42.5s, 50s, 75s etc). At least it's a part number you can look up at GMPartsDirect etc.

hope that rambling helps somehow

Brian Green
89 TTA

SixPak

if they are soft and plyable, you can probably get away with re-using them. if they have flat spots on them or seem brittle, toss 'em. it's better to replace them. but if you do re-use them lube 'em real good with some silicone.

John B

iTrader: (10)

The replacement advice is for old, cracked or distorted o-rings. As long as they look good as the other have stated, lube with regular engine oil and re-install. I used my original ones without incident <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

LS1RX7

Thanks for the replies,

I'm going to re-use the o-rings, the eng. only has 11,500 mi. plus they looked good.

Thank again!!!