angelorayhurst

Hello all, I have purchased a 1967 Cutlass that was built in Fremont..I am wanting remove all the A.I.R pump and complete system from the Cutlass..What are the best methods of removal? Thanks in advance for any info and I will be adding pics soon

2blu442

I know you can remove the pump, tubes, vacuum lines, etc. and put plugs into the intake manifold and heads. I'm trying to find an old thread, but I'm striking out. I believe Joe P once posted that the hot air tubes into the heads are pipe threads, so you can easily get plugs for these. If you have the original carburetor I don't know if you'll need to change any of the internal parts to keep it balanced. It seems like you might, but I don't know enough about it.

If you can remove everything carefully you might be able to sell the parts to someone wanting to restore a California Emissions car from 1966-67. As you might guess many people pulled this stuff off and threw it away. I've got a 1967 442 that was missing most of the parts, but since I live close to California I've been able to find parts cars with the items I needed. Also one more detail, these cars had the tall oil fill tube just like was used on the L69 option. You can leave that on the car or if you have a short one to replace it with you could sell that too, there's pretty good demand if its not dented up. John

angelorayhurst

Thanks for the info..I plan on removing it carefully..The carb has been replaced by the po with a Edelbrock that I will be replacing with a Rochester..Would you happen to remember what size the fittings were to plug the heads and isn't it a good idea to use brass fittings? Been awhile for me also lol..

2blu442

Sorry, I don't remember the size. Yes, the po for my car used brass plugs and they appeared to have worked fine.



John

angelorayhurst

Ok, sounds good..I remember doing this a few times some time ago and remembered the brass fittings (not sure why brass)..I'm sure I an just carry 1 of the air tubes to the local Ace hardware and they can tell the size..Again thanks for the info and I will be contacting you I'm sure for parts for sale..I believe I have seen you on v8buick at 1 time..Thanks again

Bill

Redog

Don't know if it's the same size as that on the 307 but I removed mine.

They are 1/4 inch brass plugs I picked up at Lowes in the plumbing dept. I had to pick up 9 because I lost one

The AIR tube broke and hot exhaust was directed right at my main wiring hardness. Luckly it only melted the factory loom

Run to Rund

The bubes into the exhaust ports just pushed in, iirc. The threads are close to 1/4" NPT but are a tube thread, straight, not tapered like pipe threads. The factory had special plugs for those holes with a straight part beyond the threads and a nose to fit the end of the hole.

joe_padavano

No, he didn't. As Joe D has pointed out, these are straight thread with inverted flare. Dorman sells correct steel plugs for these. Mondello sells special plugs that both seal the hole and plug the hole into the port to allow for porting. Many people use brass NPT plugs because the brass deforms, but I wouldn't do that.

And as noted, do NOT trash these parts. They were only used on 1966-67 CA cars and are prized by restorers. The accessory brackets are unique to this A.I.R. configuration also.

2blu442

Sorry, my mistake Joe. I couldn't find the thread I was thinking of to verify what was said, but thanks for the correction. I may need to create a new thread, but I always thought these were 66-67 only but I've got a set of #5 heads that have A.I.R. fittings in them. I can't imagine why anyone would go to the trouble/expense of retrofitting them, but the number implies 1968-69. John

angelorayhurst

Ok, great info...Thanks and I will be sure to be careful when removing..