intake manifold swap-problem
Thread Starter
Melting Slicks
Joined: Jan 2007
Posts: 2,170
Likes: 6
From: Oilerville Edmonton
St. Jude Donor '08
intake manifold swap-problem
while removing the intake manifold I have misplaced 2 injector gaskets. this brings a few problems.
1 can I buy these? I have to get manifold gaskets so hopefully the parts store has these.
2 I gently fished one of these out of the head. what if the other ones fell into the head. I've spent a good amount of time looking and cant find any more in there. What will happen if I start the car with a gasket in there?
the good news is that I am putting an LS6 on
1 can I buy these? I have to get manifold gaskets so hopefully the parts store has these.
2 I gently fished one of these out of the head. what if the other ones fell into the head. I've spent a good amount of time looking and cant find any more in there. What will happen if I start the car with a gasket in there?
the good news is that I am putting an LS6 on
Team Owner
Joined: May 2001
Posts: 87,361
Likes: 1,592
From: Western NY
I wouldn't want to start the car if an injector o-ring had fallen in. Yes, it's only rubber and probably wouldn't do any mechanical damage, but it would then wind up being toasted in the cat convertor, which might foul up things. If the manifold is still off the car, I'd get out the shop vac, empty it out, so you could see what it picks up, then vacuum out all 8 cylinders.
Le Mans Master
Joined: Mar 2010
Posts: 7,052
Likes: 945
From: DFW TX
I wouldn't want to start the car if an injector o-ring had fallen in. Yes, it's only rubber and probably wouldn't do any mechanical damage, but it would then wind up being toasted in the cat convertor, which might foul up things. If the manifold is still off the car, I'd get out the shop vac, empty it out, so you could see what it picks up, then vacuum out all 8 cylinders.
I do not think I would start the car either. I also would probably look for the proper O-Ring at a dealership parts dept. Not sure a normal parts store will have anything past a "universal" O-Ring.
I always have left the fuel rails on the intake when pulling an intake. It sounds like you pulled the rails and injectors when the intake was still on the car?
Thread Starter
Melting Slicks
Joined: Jan 2007
Posts: 2,170
Likes: 6
From: Oilerville Edmonton
St. Jude Donor '08
Thanks guys. i wll vaccum the engine before i go any further. parts store didnt have the gasket so im going to hit the dealer.
i did take the rails off before removing the intake as per ls1howto.com.
i wont be working on it for a few days but ill post when i know more.
i did take the rails off before removing the intake as per ls1howto.com.
i wont be working on it for a few days but ill post when i know more.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
If the O-ring fell into the intake track most likely it would be eventually spit out the exhaust--not a super bad deal---If it fell into the oil crankcase--and it ended up in the pan--it should most likely stay there as it won't get past the screen--But if it didn't go to the pan--It could get lodged into a spot where it would plug up the oil flow ( like a lifter--pushrod-PCV system
oil pressure gauge-low pressure safety switch--oil filter---drain back galleys)
Your call--- If it ends up in the exh that would be the best senario--check to see if you can smell burnt rubber when starting-- Good Luck---
oil pressure gauge-low pressure safety switch--oil filter---drain back galleys)
Your call--- If it ends up in the exh that would be the best senario--check to see if you can smell burnt rubber when starting-- Good Luck---
Burning Brakes
Joined: Oct 2004
Posts: 985
Likes: 23
From: Florence SC
If the O-ring fell into the intake track most likely it would be eventually spit out the exhaust--not a super bad deal---If it fell into the oil crankcase--and it ended up in the pan--it should most likely stay there as it won't get past the screen--But if it didn't go to the pan--It could get lodged into a spot where it would plug up the oil flow ( like a lifter--pushrod-PCV system
oil pressure gauge-low pressure safety switch--oil filter---drain back galleys)
Your call--- If it ends up in the exh that would be the best senario--check to see if you can smell burnt rubber when starting-- Good Luck---
oil pressure gauge-low pressure safety switch--oil filter---drain back galleys)
Your call--- If it ends up in the exh that would be the best senario--check to see if you can smell burnt rubber when starting-- Good Luck---
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Personally i wouldn't worry about a piece of rubber in the valve area---I dropped a NOS brass nozzle in the carb on a race motor and couldn't get it out--I cranked the engine without starting it and found the nozzle mashed into dust in an exhaust port-No problems developed and I did a leakdown test and it was fine----
Thread Starter
Melting Slicks
Joined: Jan 2007
Posts: 2,170
Likes: 6
From: Oilerville Edmonton
St. Jude Donor '08
Great news. i found the other 2 gaskets! after vacuming the hell out of the head and using compressed air around the rest of the engine i still hadnt found them. i decided to shake the ls1 intake out they fell out. they didnt come out the first time i did it. finding one gasket in the head was enough to make keep looking for the last 2.
glad i found them. the only replacement one i could find was a $100 kit fom the dealer.
thanks for all the help!!!
glad i found them. the only replacement one i could find was a $100 kit fom the dealer.
thanks for all the help!!!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: May 2001
Posts: 87,361
Likes: 1,592
From: Western NY
Great news. i found the other 2 gaskets! after vacuming the hell out of the head and using compressed air around the rest of the engine i still hadnt found them. i decided to shake the ls1 intake out they fell out. they didnt come out the first time i did it. finding one gasket in the head was enough to make keep looking for the last 2.
glad i found them. the only replacement one i could find was a $100 kit fom the dealer.
thanks for all the help!!!
glad i found them. the only replacement one i could find was a $100 kit fom the dealer.
thanks for all the help!!!
With respect to finding replacements, it's not all that hard...assuming of course, you live in a fairly well populated area. The o-rings are nothing more than standard, Viton o-rings. All you need to do is find an industrial supplier that sells gasket material, seals, o-rings, etc. I don't know the correct size off hand, as I haven't bought any for several years. However, there's a "standard" measurement system that categorizes rings by cross-sectional thickness and overall diameter. The proper supplier can sell you them by the car load, and a lot cheaper than the dealer....
(Do a search in your area for a Parker o-ring supplier)
Thread Starter
Melting Slicks
Joined: Jan 2007
Posts: 2,170
Likes: 6
From: Oilerville Edmonton
St. Jude Donor '08
Glad to hear that you found them!
With respect to finding replacements, it's not all that hard...assuming of course, you live in a fairly well populated area. The o-rings are nothing more than standard, Viton o-rings. All you need to do is find an industrial supplier that sells gasket material, seals, o-rings, etc. I don't know the correct size off hand, as I haven't bought any for several years. However, there's a "standard" measurement system that categorizes rings by cross-sectional thickness and overall diameter. The proper supplier can sell you them by the car load, and a lot cheaper than the dealer....
(Do a search in your area for a Parker o-ring supplier)
With respect to finding replacements, it's not all that hard...assuming of course, you live in a fairly well populated area. The o-rings are nothing more than standard, Viton o-rings. All you need to do is find an industrial supplier that sells gasket material, seals, o-rings, etc. I don't know the correct size off hand, as I haven't bought any for several years. However, there's a "standard" measurement system that categorizes rings by cross-sectional thickness and overall diameter. The proper supplier can sell you them by the car load, and a lot cheaper than the dealer....
(Do a search in your area for a Parker o-ring supplier)
