LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Steam Pipe A/C Seals

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Old Jun 18, 2011 | 10:53 PM
  #1  
GMC5.3's Avatar
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Steam Pipe A/C Seals

Ive searched that people buy these a/c seals and i just wanted to double check that its the right package, im still having a leak through my steam pipe on my driver side. Also i broke my oil pressure sending unit, is this something i have to get through the dealer, autozone couldnt cross gm numbers on it. Thanks

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Old Jun 19, 2011 | 06:17 AM
  #2  
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Re: Steam Pipe A/C Seals

No, those aren't correct. The seals in question go between On the back of the compressor and look like metal washers with a rubber center.

I know AutoZone has them as I just bought some....
Old Jun 19, 2011 | 07:02 AM
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Re: Steam Pipe A/C Seals

Autozone has the oil pressure switch.

http://www.autozone.com/autozone/par.../N-j4uzyZ93xnq

Your seals for the steam pipe should look something like this....

Old Jun 19, 2011 | 11:24 AM
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Re: Steam Pipe A/C Seals

thanks and just to clarify, i need a special 1-1/16 size socket to get the sensor off right? It looks like i may not need it does this whole piece just thread into angle fitting #1?
Old Jun 19, 2011 | 08:23 PM
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Re: Steam Pipe A/C Seals

Originally Posted by GMC5.3
thanks and just to clarify, i need a special 1-1/16 size socket to get the sensor off right? It looks like i may not need it does this whole piece just thread into angle fitting #1?
It's a special socket in that it's is deeper that a standard socket. The sender threads into the angle fitting.

Shoebox has a photo here: http://shbox.com/1/oil_pressure_sensor.jpg
Old Jun 20, 2011 | 09:42 PM
  #6  
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Re: Steam Pipe A/C Seals

Originally Posted by OBE1 95Z28
It's a special socket in that it's is deeper that a standard socket. The sender threads into the angle fitting.

Shoebox has a photo here: http://shbox.com/1/oil_pressure_sensor.jpg
Thanks, i saw shoebox's site and picture, i just wanted to make sure that the sensor threads into angle fitting #2 with is the round portion and not the angle fitting that goes to the block. I just but brand new oil and i want to make sure i dont have to touch angle fitting #1 so i wont have oil everywhere.
Old Jun 20, 2011 | 10:21 PM
  #7  
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Re: Steam Pipe A/C Seals

Originally Posted by GMC5.3
thanks and just to clarify, i need a special 1-1/16 size socket to get the sensor off right? It looks like i may not need it does this whole piece just thread into angle fitting #1?
Oil pressure switch socket....
http://www.autozone.com/autozone/acc...er=141490_0_0_

Also, you need 4 seals for the steam pipes...two per side.
Old Jun 20, 2011 | 11:23 PM
  #8  
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Re: Steam Pipe A/C Seals

Did you see his pic with the two angle fittings? Sensor screws into Angle Fitting 2. Angle fitting 2 screws into Angle fitting 1. Angle fitting 1 screws into the top of the block. If the engine isn't running, you aren't going to get oil pouring out no matter which part you unscrew.

http://shbox.com/1/op_sensor.jpg
Old Jun 22, 2011 | 08:04 PM
  #9  
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Re: Steam Pipe A/C Seals

Originally Posted by ACE1252
Oil pressure switch socket....
http://www.autozone.com/autozone/acc...er=141490_0_0_

Also, you need 4 seals for the steam pipes...two per side.
Thanks for taking the time to look it up

Originally Posted by Injuneer
Did you see his pic with the two angle fittings? Sensor screws into Angle Fitting 2. Angle fitting 2 screws into Angle fitting 1. Angle fitting 1 screws into the top of the block. If the engine isn't running, you aren't going to get oil pouring out no matter which part you unscrew.

http://shbox.com/1/op_sensor.jpg
Injuneer thank you also, i did see shoebox's pic, its really the only reason i knew the lingo "angle fitting 1 and 2" i just wanted to double check to prevent oil everywhere.
Can you both tell me if this is causing my leak through my steam pipe, notice the bolt on the left, its thread is a little smashed in. Just to clarify, i did have the correct seals on the steam pipe before i tried the a/c and it still leaked

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