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| | | | Joined: Oct 2012 Posts: 233 'Bolter | | 'Bolter Joined: Oct 2012 Posts: 233 | What A/C COMPRESSOR mounting bracket do I need for my STOCK 1953 Chevy 1/2 ton with a 261 and a pre68dave water pump mount? Stock steering so no power and a single grove blancer pulley. Mtneermike
1953 Chevy 3100 261 and SM420 53Chevy 31001953 Mack Firetruck 1972 Porsche 911 1986 Honda Goldwing
| | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | A number of places offer them with Alan Grove being a trusted name. Did you miss-type and put 261 instead of 216? Shows one of his on ebay # 261776558960.
Evan
| | | | | Joined: Jul 2010 Posts: 592 Shop Shark | | Shop Shark Joined: Jul 2010 Posts: 592 | Mike, Patrick's sells a reasonable kit for $80 that uses the single belt off the balancer, but uses the double pulley off of the compressor to allow for a dual belt installation.
I made my own brackets (stock '57 3600 235) when I installed AC about three years ago. I wanted the compressor on the top and the alternator on the bottom and all the kits that I saw (including Patrick's) were the other way around. Not too hard to do, but it did take a fair amount of time to mock up and fine tune. I enjoy the challenges of that kind of work, so it was a pleasant project for me. Mine uses a single belt. If you are interested in doing something similar, I'd be happy to provide pix and info.
Matt | | | | | Joined: Feb 2004 Posts: 29,743 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,743 | One trick is to use the belt from the crankshaft to drive the water pump and the compressor, and use a short belt from the 2-groove compressor pulley to run the alternator. You could also use the modified damper/pulley setup for a 283 or 307 V8 on the stovebolt that uses all-new parts to fabricate a 2-groove damper.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jul 2010 Posts: 592 Shop Shark | | Shop Shark Joined: Jul 2010 Posts: 592 | The way Jerry describes the set up in his first sentence is the way the Patrick's kit is designed. Pretty slick.
On mine, the compressor is fixed and the single belt is tensioned using the alternator mounting bolt as a pivot. If I did it over again, I would still keep the alternator on the bottom and the compressor on the top, but I would probably use Jerry's suggested approach for two belts utilizing the double pulley on the compressor instead of one long belt.
Personal preference on mounting the compressor low and the alternator high, but I did it this way to make it easier to get to the compressor and the fittings if required.
Matt
Last edited by Maybellene; 07/23/2016 3:16 PM.
| | | | | Joined: Feb 2004 Posts: 29,743 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,743 | One important consideration is belt traction on the pulleys. An A/C compressor pulls a pretty good load, and the belt needs to wrap around the pulley as far as possible. A short contact patch can result in belt slippage, squeal, and wear under load.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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