Dad's Air Conditioner Compressor
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FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Thanks. I'll contact them.
Your mention of dozens of different clutch arrangements reminds me of why I think I want to go with someone that does this for a living. If the SD709 is roughly the same length as the compressor I have, which I think is an FS6, there isn't much flexibility in the mounting position. The rear of the compressor is just an 1/8" from the valve cover when the feet are sitting on the stock bracket. So it will be nice to be able to buy a bracket, compressor, and clutch that will fit in that space and have the right pulley lined up with the engine's pulleys.
Your mention of dozens of different clutch arrangements reminds me of why I think I want to go with someone that does this for a living. If the SD709 is roughly the same length as the compressor I have, which I think is an FS6, there isn't much flexibility in the mounting position. The rear of the compressor is just an 1/8" from the valve cover when the feet are sitting on the stock bracket. So it will be nice to be able to buy a bracket, compressor, and clutch that will fit in that space and have the right pulley lined up with the engine's pulleys.
Old School Hot Rodder
Joined: Feb 2006
Posts: 6,472
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From: Exmore, VA
Gary, the single serpentine usually turns the pump backwards, but... 3.0L Rangers use a serpentine system with a normal rotation as do the Lincoln Continental V8s. The dual polygroove belts turn the water pump normally (there are NO 460s with reverse rotation pumps and it looks like a number of the setups are similar between the 351M/400 and 460 truck engines.
The FS10 is what is called a tangent mount meaning the mounting bolts pass through on a tangent to the shaft. The bolts are 8mm 1.25 with a washer face and 10mm head.
The FS10 is what is called a tangent mount meaning the mounting bolts pass through on a tangent to the shaft. The bolts are 8mm 1.25 with a washer face and 10mm head.
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FTE Legend
Joined: Jul 2010
Posts: 32,875
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From: Northeast, OK
First item, that is not a true serpentine system, it is pretty much what I have on the EFI 460, dual polygroove belts. The locations of the A/C compressor and alternator are reversed from a truck.
Suggestion, find someone who has an EFI 460 out of the truck and look at that setup, the pulleys might fit. The normal setup has A/C compressor up on the left side. P/S pump below it, driven by one belt, the rear one. The alternator mounts at roughly valve cover level on the right with the Thermactor pump under it, driven by the other belt, the front one. The automatic adjuster sits on the left accessory bracket casting and rides on the rear belt between the water pump and A/C compressor.
The left side bracket attaches to the front of the head with 4 long 7/16" bolts and there is a single 3/8" bolt into the water pump near the inlet. The right side bracket has two 3/8" bolts into the head, one into the water pump, one into the block behind the Thermactor pump and one 3/8" stud that the alternator tension arm attaches to along with another 3/8" bolt into the water pump. I'm sure the van setup for the Saginaw P/S pump is similar.
These engines use an FS-10 compressor rather than the FS-6 that the 1986 trucks used (10 ci rather than 6) and convert well to R-134a since they were used on these engines up till end of production in 1997.
Suggestion, find someone who has an EFI 460 out of the truck and look at that setup, the pulleys might fit. The normal setup has A/C compressor up on the left side. P/S pump below it, driven by one belt, the rear one. The alternator mounts at roughly valve cover level on the right with the Thermactor pump under it, driven by the other belt, the front one. The automatic adjuster sits on the left accessory bracket casting and rides on the rear belt between the water pump and A/C compressor.
The left side bracket attaches to the front of the head with 4 long 7/16" bolts and there is a single 3/8" bolt into the water pump near the inlet. The right side bracket has two 3/8" bolts into the head, one into the water pump, one into the block behind the Thermactor pump and one 3/8" stud that the alternator tension arm attaches to along with another 3/8" bolt into the water pump. I'm sure the van setup for the Saginaw P/S pump is similar.
These engines use an FS-10 compressor rather than the FS-6 that the 1986 trucks used (10 ci rather than 6) and convert well to R-134a since they were used on these engines up till end of production in 1997.
Gary, the single serpentine usually turns the pump backwards, but... 3.0L Rangers use a serpentine system with a normal rotation as do the Lincoln Continental V8s. The dual polygroove belts turn the water pump normally (there are NO 460s with reverse rotation pumps and it looks like a number of the setups are similar between the 351M/400 and 460 truck engines.
The FS10 is what is called a tangent mount meaning the mounting bolts pass through on a tangent to the shaft. The bolts are 8mm 1.25 with a washer face and 10mm head.
The FS10 is what is called a tangent mount meaning the mounting bolts pass through on a tangent to the shaft. The bolts are 8mm 1.25 with a washer face and 10mm head.
Given the limited holes on the passenger's side head and the options regarding the compressor mount, I think I'm going with this way:
- Alternator: I'll use the original alternator/AIR pump bracket but cut it down to just support the alternator. That's as clean as the alternator mount can be made given the single mounting hole in the head. And, I'll run dual belts to it.
- A/C Compressor: I'll go with the original M/400 York-style bracket and the add-on brackets to handle a rotary compressor. That'll put the compressor as low as is possible, provides the bracket for the idler pulley on the 2nd belt to the alternator.
- PS Pump: This is as yet undecided. I'm looking for a Saginaw setup, which needs to come from an M/400 such as in the vans or some of the land barges, but having no luck. Short of that I'm leaning to the Windsor brackets as they are cleaner than the M/400 brackets. (And, the fuel line routing is far enough inboard of that so there's no problem.)
More Turbo
Joined: Sep 2015
Posts: 563
Likes: 38
I don't know if this question was answered, but there are direct York to Sanden compressor
conversion brackets, and a few different displacement sandens that will take more, or less
power to run. In a single cab truck, it doesn't take a large displacement compressor to keep
the cab cool. You can also find Sanden parts on almost any street corner.
conversion brackets, and a few different displacement sandens that will take more, or less
power to run. In a single cab truck, it doesn't take a large displacement compressor to keep
the cab cool. You can also find Sanden parts on almost any street corner.
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