3100 AC idler pulley?

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mcgavinz26
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3100 AC idler pulley?

Post by mcgavinz26 »

Just what the topic says.  Does anyone sell, or has anyone made and have pictures of a 3100 / 3400 idler pulley bracket to replace the AC compressor?  

I thought no one sold one.  I just wanted to double check, because I had a few hours last night at work and made one out of some scrap aluminum sitting around.  I'll load up some pics to my website later on.


http://www.speedlimit88.com
1994 Z26 - 3400, 5spd, supercharged, propane, megasquirt - RIP
1988 Fiero GT - 5psd, LX9, M90, Megasquirt
1999 Buick Regal GS -daily driver
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IsaacHayes
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3100 AC idler pulley?

Post by IsaacHayes »

I don't think anyone sells one as a common "performance" part. If I've heard of one it's been a custom one off for the person doing it only...


Image Image 2010 project (click pic)
1994 3100 BERETTA. 200,000+ miles.
16.0 @ 84.41mph when stock. Now ???
Original L82 w/LA1, LX9, & LX5 parts!!!

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twistedindy1
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3100 AC idler pulley?

Post by twistedindy1 »

GM sells one for like $30, it is called something funky like a Water pump pulley, but is actually the AC Delete pulley.


Marc
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Asylum
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3100 AC idler pulley?

Post by Asylum »

GM part number 10044867
It's about $14 from gmpartsdirect


Eric

Asylum Motorsports
"Where we're not happy 'til YOU'RE not happy!






'91 California Quad (Gone with just a bit of "Seller's Remorse".)
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.
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IsaacHayes
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3100 AC idler pulley?

Post by IsaacHayes »

Really? Fits the 3x00 motors with the new style compressors? Keep in mind the 3.1MPFI had a different moutning and different compressor.

I thought all 3x00 motors had A/C stock.. I know it was stock on all L bodies...


Image Image 2010 project (click pic)
1994 3100 BERETTA. 200,000+ miles.
16.0 @ 84.41mph when stock. Now ???
Original L82 w/LA1, LX9, & LX5 parts!!!

soon to be OBD1 tuned...
twistedindy1
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3100 AC idler pulley?

Post by twistedindy1 »

that is the one.


Marc
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3100 AC idler pulley?

Post by Asylum »

^^^What he said. The blocks are all the same. It'll work just fine.


Eric

Asylum Motorsports
"Where we're not happy 'til YOU'RE not happy!






'91 California Quad (Gone with just a bit of "Seller's Remorse".)
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.
rweatherford
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3100 AC idler pulley?

Post by rweatherford »

I knew there was one for the Quad.  This should be put in the FAQ if it isn't already there.


Rex Weatherford
92 Beretta GTZ Quad4 Turbo / 5-speed (sold)
Best 1/4 ET =  13.523 @ 105.16 mph

07 Mazda 5 Black on Black (it's slow)

Norm 88GT
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3100 AC idler pulley?

Post by Norm 88GT »

Scott, I have one for the 2.8/3.1.  I can take it off and send it to yo to see if it works.  Is there a hole there for one?

Norm


Norm -
'88 GT => V8 - http://www.beretta.net/board/ib3/ikonbo ... ;f=9;t=261
'00 C5 MN6 - Procharged

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mcgavinz26
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3100 AC idler pulley?

Post by mcgavinz26 »

(Norm 88GT @ Jan. 14 2006,08:54)Q
U
O
T
EScott, I have one for the 2.8/3.1.  I can take it off and send it to yo to see if it works.  Is there a hole there for one?

Norm
Do you have the GM part these guys are talking about or do you have a homemade one?

What do you mean by a "hole there for one?"

If it bolts up like the AC compressor does in this picture, http://60degreev6.com/Articles/Misc/fam ... 043100.jpg - it should work for my application.

Does anyone have a picture of this thing?


http://www.speedlimit88.com
1994 Z26 - 3400, 5spd, supercharged, propane, megasquirt - RIP
1988 Fiero GT - 5psd, LX9, M90, Megasquirt
1999 Buick Regal GS -daily driver
Norm 88GT
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3100 AC idler pulley?

Post by Norm 88GT »

In '88 and some later V6s that were not GT's AC was an option.  They provided a pulley that mounted to the timing chain cover to take up some of the slack between the water pump and crank pulleys.  Not that it is really needed, but was grooved and probably helped from the belt slipping off during higher rpms.

I'll take a pic of mine since the engine is out and sitting on the garage floor.

Norm


Norm -
'88 GT => V8 - http://www.beretta.net/board/ib3/ikonbo ... ;f=9;t=261
'00 C5 MN6 - Procharged

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z284pwr
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3100 AC idler pulley?

Post by z284pwr »

I still continued to miss something or don't understand this.  Why does everyone ask for one of these, is it really that difficult to just get a shorter belt for non A/C? Do some not have a belt tensioner, is there something else?  I continue to be lost on this?


Brian Edwards
'73 Trans Am - 455/Auto
'79 Suburban - 454/Auto
'88 Beretta GT - 3.1/5spd
'90 Beretta Indy - 3.1/Auto
'90 TGP - 3.2 Turbo/Auto
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mcgavinz26
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3100 AC idler pulley?

Post by mcgavinz26 »

(z284pwr @ Jan. 17 2006,00:33)Q
U
O
T
EI still continued to miss something or don't understand this.  Why does everyone ask for one of these, is it really that difficult to just get a shorter belt for non A/C? Do some not have a belt tensioner, is there something else?  I continue to be lost on this?
2 reasons, I'm pretty sure, without going back out there and looking under the hood again...

1 - you lose almost all water pump contact
2 - not verey sure, but I think part of the bracket bolting through the timing chain cover that the motor mount on that side attaches to, that bracket interferes with the path the belt would take if the AC were eliminated... if thats the case... i think you might be able to hack part of it off...??? I really haven't looked at it in that aspect in a long time and the car is currently stored 60 miles away in a garage.

Norm, can you see a hole in the cover where it should go on the picture I linked to in the last post?

I looked at this picture, http://memimage.cardomain.net/member_im ... 1_full.jpg from my car domain page and it does look like there is a bolt hole where I think you will put that pulley, but i'm not sure if it's being used by that bracket for the motor mount.  Its been a while since I saw that part of the engine closely... and I'm getting very old and my memory is fading.


http://www.speedlimit88.com
1994 Z26 - 3400, 5spd, supercharged, propane, megasquirt - RIP
1988 Fiero GT - 5psd, LX9, M90, Megasquirt
1999 Buick Regal GS -daily driver
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Asylum
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3100 AC idler pulley?

Post by Asylum »

Gates and Delco both actually list a belt for a 2.8/3.1 with a/c delete.
Gates # K060615 ( 25-060615 in Canada )
Delco  #6K615
For those of you how can't read a belt, that is a 6 grove belt, 61 1/2 inches long.
And yes, you have to watch water pump contact. It's rather minimal.
That is why GM came out with the delete pulley (Part number 10044867).
It allows use of the standard belt, whatever the hell length that is.





Eric

Asylum Motorsports
"Where we're not happy 'til YOU'RE not happy!






'91 California Quad (Gone with just a bit of "Seller's Remorse".)
'92 3500 GT gone and not really missed. It was fun. Documented 13.47 N/A.
Norm 88GT
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3100 AC idler pulley?

Post by Norm 88GT »

Scott, here is where it locates on the 2.8/3.1.  Unfortunately the garage has been cleaned out and the pulley is gone.

http://i29.photobucket.com/albums/c284/ ... T/BBBB.jpg

Norm


Norm -
'88 GT => V8 - http://www.beretta.net/board/ib3/ikonbo ... ;f=9;t=261
'00 C5 MN6 - Procharged

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