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2007 into 1965

alldun5 on Wed December 22, 2010 11:32 PM User is offline

Year: 65/07
Make: Oldsmobile/GMC
Model: Cutlass/3500HD SLE
Engine Size: 6.0
Refrigerant Type: 134
Ambient Temp: ?
Pressure Low: ?
Pressure High: ?
Country of Origin: United States

I have put a 2007 6.0 LY6 / 6L90E combo from a 2007 GMC 3500HD SLE into my 1965 Olds CUtlass convrtible. The Cutlass is an original AC car. I am not tied to using any of the original equipment from the car, except, possibly the evap core in the passenger side firewall. That would only be for fit. My knowledge of AC is pathetic, at best, so please, respond in laymans terms. I am very mechanically inclined, do all my own mods, but have never needed to learn your art. The stories I hear range from "oh, its simple" to " pressures, restrictions, orifice, accumulators all must be perfect", to " just don't run it, it's a convertible".
I want to have the AC functional, and any help would be greatly appreciated. I did get the lines and compressor with the engine. No condensor or any of the other components. I do have great junkyards and parts stores nearby,

Thank you,
Rick

alldun5 on Wed December 22, 2010 11:35 PM User is offline

Thought I'd trhrow in a front shot.

bohica2xo on Thu December 23, 2010 12:47 AM User is offline

Well, all of the OEM equipment on the firewall in the passenger compartment was pretty good stuff. It was all designed to get the hot or cold air where it needed to be. It has a decent blower assembly, a properly sized evaporator & heater core. I would be inclined to use every bit of it after a little freshening up.

I would keep the OEM spec TXV from the '65 to meter refrigerant into the evaporator, regardless of any other system choices.

Personally I would be looking for the brackets for that block to carry the V7 compressor. That would give you the same compressor displacement as the Olds was shipped with, and evaporator pressure control which the Olds also had. GM used the V7 on that engine, so the mounts are GM pieces.

Use the largest parallel flow condensor you can fit in front of the radiator. Look HERE for a listing of parallel flow condensors.

You will also need a receiver/dryer, and some hoses. Obviously the hoses are custom fit, but there are several ways to get that done. The site sponsor can make them, or sell you a crimping tool & the parts. Most large cities have someplace that can build hoses as well.

If you choose to keep the truck compressor you will need an accumulator in place of the receiver/drier, and there will be a pressure sensor to install in one of the lines.

B.

-------------------------
"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

alldun5 on Thu December 23, 2010 8:27 AM User is offline

Thanks for the unbelievably fast response. WOW!
Can you tell which compressor is on it now?

Thanks again,
Rick

alldun5 on Thu December 23, 2010 8:38 AM User is offline

On COMPNINE.com it shows it as ACDelco #15-20940.

bohica2xo on Thu December 23, 2010 12:11 PM User is offline

The compressor in your pictures is a 10S17F Denso Unit. They have a displacement of 188cc/rev

B.

-------------------------
"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

alldun5 on Thu December 23, 2010 7:02 PM User is offline

OK, local AC shop will pressure test the evaporator, and suggests the accumulator system. They said must of the newer systems have gone to the accumulator/orifice sytem. If I get the parts for the same truck system, those should work, just add the fittings for the evap.

Would that eliminate the TX valve, as I think they said?
Will it have any effect on the operation of the dash controls?

Dougflas on Thu December 23, 2010 9:36 PM User is offline

If there is any way to use a TXV system, use it. The TXV 's give the best operation in my opinion. Office tubes do not give the best operation under varying conditions. Your evaporator was designed for a TXV.

mk378 on Fri December 24, 2010 8:07 AM User is offline

TXV with a V7 would be a premium system. Using the fixed displacement compressor I'd still run TXV. If you don't have the POA valve any more, add a temperature switch on the evaporator to prevent ice up. Do not use the "POA eliminator" device with a pressure switch, it makes the compressor cycle rapidly.

Car makers switched to CCOT systems on later models for lower cost, not higher performance.

alldun5 on Fri December 24, 2010 8:43 AM User is offline

What is a POA valve? CCOT?

I am trying to find a vehicle that had the V7 compressor and any of the gen 3 or gen 4 LS blocks. So far all have the mounting high on the drivers side, rather than low on the passengers side. I might have to get a V7 and make my own mounts. I am a CNC programmer/machinist and own my own shop. I want to keep it low on the pass side for ease of routing the lines, and aesthetics.

For my clarity:
V7 compressor
Stock 65 TX valve
Stock 65 Receiver/dryer
Largest parallel flow I can fit (great link in first reply, has sizes)
Stock evaporator
Hoses

I will look on here to see if I can find new parts for the stock items.
Thanks for all the help and keep any suggestions coming.

Removed the L92 intake, installed the 2010 Camaro intake, relocated idler pulley

alldun5 on Fri December 24, 2010 9:01 AM User is offline

Wow, these parts are cheap.
O-rings $4.65
Sealant $9.49
Accumulator/drier $13.81
Expansion valve $20.90

Do I need an inline filter for $35.68 ?

iceman2555 on Fri December 24, 2010 3:27 PM User is offlineView users profile

Why do you wish to use 'sealant' in this system? If it has a leak...fix the leak...stay away from sealants.....!!!!!!!!

-------------------------
The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

bohica2xo on Fri December 24, 2010 3:40 PM User is offline

Having a milling machine & a pair of calipers makes this simple.

You need to use the cross bolt mount V7 Like THIS, and make a pair of spacers from plate to get the V7 into the stock mount you have. Usually a piece of .750 aluminum will do it. I have done this to replace a Sanden with a V7, took under an hour with a bridgeport close at hand.

That compressor is a reman, but AMA has new ones too.

B.

-------------------------
"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

Edited: Fri December 24, 2010 at 3:52 PM by bohica2xo

alldun5 on Sat December 25, 2010 1:22 AM User is offline

Excellent info. You guys have been great. The sealant is listed under my vehicle on ACKITS for threads and fittings. Just listing the items there, and I still think they are cheap.

alldun5 on Tue January 04, 2011 9:02 PM User is offline

Are these the only cross bolt style V7's?

1998-2002 Camaro / Firebird
1997-2004 Corvette

Thanks again.

Edited: Wed January 05, 2011 at 1:07 AM by alldun5

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