injection housing leak - ZR-1 Net Registry Forums

aafc · 02-19-2019

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 · 02-19-2019

Quote:

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 · 02-19-2019

Quote:

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 · 02-19-2019

Quote:

Originally Posted by Ccmano

Jerry,

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

Silicone will damage the O2 Sensors.

XfireZ51 · 02-20-2019

Quote:

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 · 02-20-2019

Quote:

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.

BigIke · 02-23-2019

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!!!

Sent from my SM-G960U using ZR-1 Net Registry mobile app

02-19-2019	#1
aafc Join Date: Feb 2010 Location: Summerfield, FL Posts: 434	injection housing leak 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

02-23-2019	#7
BigIke Join Date: Aug 2014 Location: Montgomery TX Posts: 263	Re: injection housing leak 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!!! Sent from my SM-G960U using ZR-1 Net Registry mobile app