injection housing leak

[aafc]

After a hard drive i noticed some oil on the right side of inj housing. It looks like there is a leak from the gasket. Time to pull housing and replace the
gaskets. Should i replace the o rings on my injectors while i'am in there.
Injectors are from FIC installed some time ago. I ordered new housing
gaskets and plenum gaskets, but forgot to order o rings. Do i replace
only the primary or do all of them.
Thanks
John

[A26B]

Originally Posted by aafc

After a hard drive i noticed some oil on the right side of inj housing. It looks like there is a leak from the gasket. Time to pull housing and replace the
gaskets. Should i replace the o rings on my injectors while i'am in there.
Injectors are from FIC installed some time ago. I ordered new housing
gaskets and plenum gaskets, but forgot to order o rings. Do i replace
only the primary or do all of them.
Thanks
John

John,

FIC injectors come with new, Viton o-ring seals, except for the primary injector lower o-ring seals(8), Jerrys Gaskets PN 10067600-V. If you are not sure the o-rings you have presently are Viton, I recommend replacement. The rest of the o-ring seals are OK for re-use provided they are not damaged.

Lightly lube all of the o-rings with motor oil before re-installing. Do not use silicone grease.

[Ccmano]

Originally Posted by A26B

Lightly lube all of the o-rings with motor oil before re-installing. Do not use silicone grease.

Jerry,

I’m curious why you recommend not using silicone grease?
H

[A26B]

Originally Posted by Ccmano

Jerry,

I’m curious why you recommend not using silicone grease?
H

Silicone will damage the O2 Sensors.

[XfireZ51]

Originally Posted by A26B

Silicone will kill the catalyst in the converters.

Actually Jerry my understanding is that silicone kills the O2 sensor, not the converter.

[A26B]

Originally Posted by XfireZ51

Actually Jerry my understanding is that silicone kills the O2 sensor, not the converter.

You are right Dom, my mistake. I knew that but it just didn't come forward when I was recalling the issue with silicone. One of those symptoms of age.. Thanks for calling it to my attention.

[XfireZ51]

Originally Posted by A26B

You are right Dom, my mistake. I knew that but it just didn't come forward when I was recalling the issue with silicone. One of those symptoms of age.. Thanks for calling it to my attention.

No worries. Happens to the best of us.

[BigIke]

Replaced mine, 5 years overdue, tighten our replace the evac cover bolts/gasket, it will be loose.

Get Jerry's core plugs and deep-6 the secondaries!!!

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