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Author Topic: GM Air Compressor  (Read 1390 times)
travlinman
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« on: November 15, 2012, 07:41:09 AM »

Hey Guys,

With my starter and Webasto both working it is time for my next repair. My air compressor has been slowly dying for the last year and before my next long drive it needs to go. If you are interested in a bit of my compressors history here is a few posts:

http://www.busconversions.com/bbs/index.php?topic=24561.msg269275#msg269275

http://www.busconversions.com/bbs/index.php?topic=24308.msg266591#msg266591

So here is todays question, My current compressor is listed as obsolete by Haldex, it is shown here:

http://epi.hbsna.com/Products/Product.asp?msi=0&sid=2FC7E4B0926C445498BF3F6D14F6AE41&pf_id=280609X&dept_id=3143#

This compressor is listed as a compatable replacement:

[url]http://epi.hbsna.com/products/product.asp?msi=0&sid=2FC7E4B0926C445498BF3F6D14F6AE41&pf_id=EL16050X&dept_id=3060]http://epi.hbsna.com/products/product.asp?msi=0&sid=2FC7E4B0926C445498BF3F6D14F6AE41&pf_id=EL16050X&dept_id=3060

Will the compressor in the last link work on my left turning 8v71?

Thanks for reading, I know I can't be the only one who has faced this recently!

Cheers,

TM

PS What happened to the spell check?

Edit to fix second link.
« Last Edit: November 15, 2012, 11:09:48 AM by travlinman » Logged

Steve & Kristen Full time nomads since '06 - PD4106-674  8V71/V730
Len Silva
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« Reply #1 on: November 15, 2012, 08:02:20 AM »

The cam drives all turn in the same direction regardless of the engine rotation.
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luvrbus
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« Reply #2 on: November 15, 2012, 08:20:46 AM »

Like Len said the only thing turning backwards is the starter and crankshaft
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travlinman
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« Reply #3 on: November 15, 2012, 08:43:51 AM »

OK, Sweet that makes my life a whole lot easier!

 Thanks
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Steve & Kristen Full time nomads since '06 - PD4106-674  8V71/V730
wildbob24
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« Reply #4 on: November 15, 2012, 10:59:22 AM »

Steve,

Both of the linked compressors(which appear to be the same, btw) are listed as 0 degree tilt. Your 4106 should have a 45 degree tilt compressor.

Bob
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P8M4905A-1308, 8V71 w/V730
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travlinman
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« Reply #5 on: November 15, 2012, 01:10:09 PM »

Bob,

How will i know if the compressor that is at the parts store is a 45 degree tilt?

I will post up some photos here of the actual one in just a bit.

TM
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Steve & Kristen Full time nomads since '06 - PD4106-674  8V71/V730
eagle19952
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« Reply #6 on: November 15, 2012, 01:28:21 PM »

EL16072X  Reman. Detroit Diesel 4  Right  Left  DDC Bus Application 4 Tilt  -  N7205S  1600
I guess the only sure way to know is compare it to the one you have.
http://epi.hbsna.com/products/product.asp?msi=0&sid=2FC7E4B0926C445498BF3F6D14F6AE41&dept_id=3060&pf_id=EL16072X


Head Rotation:    Right 
Block Rotation:    Left 
Application:    DDC Bus Application 4 Tilt 
Notes:    - 
OEM Part Number:    N7205S 
Core Group:    1600 
« Last Edit: November 15, 2012, 01:33:57 PM by eagle19952 » Logged

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wildbob24
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« Reply #7 on: November 15, 2012, 06:38:58 PM »

Steve,

My apologies. I got my MCI and GM compressors mixed up. The MCIs use the laid over compressor.

The difference is in the location of the oil drain hole. The GM's drain should be at 6 o'clock and the MCIs are closer to 4 o'clock, with the compressor standing upright.

You want to make sure your replacement has the drain in the same place as your old one.

Bob
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travlinman
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« Reply #8 on: November 15, 2012, 07:27:50 PM »

Eagle - That is exactly my plan, when the weather allows I'm going to get the two side by side.

Bob - Thanks for the up date, you had me wondering this afternoon. Now I just need to learn where the oil drain is!

TM
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Steve & Kristen Full time nomads since '06 - PD4106-674  8V71/V730
wildbob24
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« Reply #9 on: November 16, 2012, 06:46:03 PM »

Steve,

The oil drain is just a hole in the casting that allows the oil in the compressor crankcase to drain into the engine housing. After you remove your compressor, if you'll look in the area where the drive gear is located, you'll see it.

Bob
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P8M4905A-1308, 8V71 w/V730
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travlinman
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« Reply #10 on: November 17, 2012, 06:52:28 PM »

Thanks Bob!
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Steve & Kristen Full time nomads since '06 - PD4106-674  8V71/V730
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