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08-21-2007, 09:38 PM | #1 |
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A/C retrofit complete
since the stock compressor would not clear the valve covers on my Blazer I decided to go a little different route. I ordered alan grove ac and alternator brackets. This allowed me to move the alternator to the drivers side and the compressor to the passengers side. This makes alot more sense to me since all the ac stuff is on this side. The brackets fit nice after some slight modifications(grinding) to clear my headers, and a little trimming on the p/s pump bracket.
The 134a seems to cool fairly well, all in all im happy with it. There are some fittings that are hard to find, but if you search long enough they can be found. If anyone is interested in swapping to this style of compressor I will gladly list the different fittings that you need so that you dont have to try and figure it out and make multiple trips to the parts store like I did. |
08-21-2007, 10:00 PM | #2 |
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Re: A/C retrofit complete
Looks good, I want to put a/c back into my 73, would appreciate a parts list, with approximate prices if possible. Thanks.
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08-21-2007, 10:18 PM | #3 |
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Re: A/C retrofit complete
That is one sweet lookin blazer of yours!! Working a/c is always a plus
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08-21-2007, 10:46 PM | #4 |
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Re: A/C retrofit complete
I would also be interested in the parts list to do this. What brand of compressor is that you went with? It sure is a clean install.
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08-22-2007, 02:00 AM | #5 |
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Re: A/C retrofit complete
I used Alan Grove part #s 123R abd 223L for the brackets. They are around $85 each. I used a sanden SD5(or 508) compressor, these can be found for around $200 for the plain finish, but are available in polished or chrome.
The fittings you will need are: #12 fitting to #10 hose-straight( accumulator end) #10 fitting to #10 hose-90 degree( compressor end) #10 hose from compressor to accumulator. #8 fitting to #8 hose-straight( condensor end) #8 fitting to #8 hose-90 degree( compressor end) #8 hose from compressor to condensor If you do not have the factory line from the condensor to the evaperator, like me, You will also need: #6 fitting to #6 hose-straight with service port( condensor end) #8 fitting to #6 hose-straight( evaperator end) #6 hose from condensor to evaperator The fittings are not cheap they are going to be between $4 to $10 each, be prepared to spend $100 bucks for fittings and hose and to get them crimped. If you do not have a crimper to crimp them with I recommend buying the fittings and hoses and take them home and mock them up, cut them to length, mark the fittings and the hose to be sure that you end up with your fittings clocked in the right direction. Then take them back and have them crimped. Dont forget to replace the orifice tube and O-rings as well. Last edited by bagged74; 08-22-2007 at 02:02 AM. |
08-22-2007, 01:58 PM | #6 |
Cruzzzn' Vet
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Re: A/C retrofit complete
Nice
That's the way GM should have done it. |
08-22-2007, 05:37 PM | #7 |
67 Chevy Stepside
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Re: A/C retrofit complete
nice job
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08-22-2007, 08:13 PM | #8 |
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Re: A/C retrofit complete
That's what i'll do the next time my compressor goes out. The factory setup, with all the noise it makes and the horsepower it eats, isn't a good choice.
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08-22-2007, 08:27 PM | #9 |
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Re: A/C retrofit complete
Killer setup!
Just curious on why you went with the bigger compressor rather than the smaller R4 type? Are they more effecient? I have absolutely no clue about AC stuff, so just trying to learn some things.. I have the small compressor, but my AC hasn't worked in years. I'm wanting to do a total rehaul with r134, replacing everything. Thanks for the breakdown, will keep this thread saved!
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
08-22-2007, 10:49 PM | #10 |
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Re: A/C retrofit complete
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08-22-2007, 11:12 PM | #11 | |
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Re: A/C retrofit complete
Quote:
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 Last edited by C&C Chevy; 08-22-2007 at 11:12 PM. |
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08-22-2007, 11:17 PM | #12 |
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Re: A/C retrofit complete
That style compressor would not work with the tall valve cover that I have onmy blazer because of how the lines attach to the back. The aftermarket brackets also would not fit that style compressor.
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08-22-2007, 08:59 PM | #13 |
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Re: A/C retrofit complete
does this setup cool better then the stock a/c.
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08-22-2007, 10:49 PM | #14 |
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Re: A/C retrofit complete
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08-22-2007, 11:30 PM | #15 |
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Re: A/C retrofit complete
I'm guessing the sanden compressors are known for their quality. I know their are some compressors to stay away from and some say the R4's are horrible. A new ac delco R4 unit runs about $250 so if the 508's are reliable, I may go that route.
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
08-23-2007, 09:58 AM | #16 |
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Re: A/C retrofit complete
Looks great! I'm glad the AG brackets and Sanden compressor worked out for you. My BB will have the same type arrangement, the only thing I am doing different is changing the stock tube and fin condensor to a more efficient parallel flow condenser. The one I have is the 19.5"x30.5".
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- Greg Last edited by 454HO; 08-23-2007 at 11:46 AM. Reason: add link |
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