Intake bolts

[Ciera91]

1991 Olds Ciera 3.3 intake gaskets are leaking. Are the intake bolts re useable? I'm not finding anything online for them.

[CorvairGeek]

Yes, completely conventional. I did put thread locker on mine, as I have found everything on the engine originally assembled with it.

https://postimg.cc/gallery/svhS8zK

This will take you to all the pics of the job on our '92. Not a bad job at all.

[Ciera91]

I have the tools and garage to do it, car has been parked for about a year and occasionally started. Just lazy. Haha

[autonoob]

You can absolutely reuse them regardless, and ARP specifically you can virtually always reuse. I tend to toss torqued fasteners at overhaul - but not for an intake swap.

[Ciera91]

Yes, completely conventional. I did put thread locker on mine, as I have found everything on the engine originally assembled with it.

https://postimg.cc/gallery/svhS8zK

This will take you to all the pics of the job on our '92. Not a bad job at all.

Do you have tbe torque specs? I had an autozone repair page bookmarked but they seem to have changed something now the link goes to another page.

[CorvairGeek]

The '92 FSM says "tighten manifold bolts TWICE to 10 N-m (89 lb.in.)".

[CorvairGeek]

Here is the torque sequence.

[Ciera91]

Jerry thanks so much. I forgot I had a 91gm service manual. Now if I can just find it. I bought a new house in Oct and don't know if I unpacked it. What section is this?

Tighten twice means just snug them in sequence then go to the suggested torque setting?

[CorvairGeek]

I think you are actually supposed to do it at prescribed torque twice. The manifold 'settles' into place with the lousy, flexible plastic gaskets.

[Ciera91]

I twisted them finger tight with a socket after putting dabs of RTV in the corners. Then torqued in sequence 2x. Guess we'll find out in a couple days when my other parts come and I finish.

[CorvairGeek]

I would think they will be fine. It's an exceptionally simplistic design, but the RTV in the corners is important, so I have learned. The factory was deficient in the corners with the amount of RTV, according to one of our knowledgeable members.

[Ciera91]

I'm just paranoid because this is the first time doing this ha. I did find a few intake bolts weren't even really tight when I pulled it. Seemed weird to be that loose.

I also found 2 bolts almost all the way out on the mount on the back of the engine/intake that the metal support rod from the power steering pump bolts to.

I'd hate to think a mechanic tampered with my car over the years.



https://imgur.com/a/4fzp1VW

[CorvairGeek]

Those look familiar!

I had snugged ours up over the years as it weeped. I think the plastic shrinks much like the gaskets in the 3100/3400.

[carlotagon]

thanks for the comments, I had the same doubts but I already have a clearer mind