A/C compressor

Connectors are specific to the required refrigerant, so make sure you keep that in mind.

 

No. R12 and R134 use same connectors on the car. The only difference is the service ports.

 

Many places have a specialized A/C supply or shop. I'd check with them. It may be a situation most easily resolved by trading the end housing.

 

From where did you purchase the Sanden?


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Wait a sec : are you talking about the connections to the car or the connectors to charge the system?

 

Ah. Yes, those aren't specific to refrigerant. I thought you meant the others.

 

That's unusual and not correct, that the compressor has the same connection for both hoses. And doesn't meet common A/C compressor specs. We have different hose diameters because of the significantly different pressures (Higher pressure on discharge side means smaller diameter) Factory is 7/8"-14 UNF for the suction (low pressure) side and 3/4"-16 UNF for the discharge (high pressure) side.
I found the compressor you mentioned on ebay Germany and it exactly has these fittings.
Did you purchase a new compressor or a used one, which was "modified" by someone?

Best from Germany
Martin

 

The 2 cylinder compressor for early 308 and all US 308 and 328 had exactly the same fittings as do a great many other compressors. The fitting size has nothing to do with hose size.

 

Sorry for the wrong information. I just "saw" Euro cars. O.k. Then it's simple. He simply purchased the wrong compressor.

But what confuses me completely, is that Ferrari UK lists the same -different size and fittings- A/C hoses for all cars from the earliest 208/308 till the QV. No matter Euro or US.

Best from Germany
Martin

 

Try www.coldhose.com for fittings and other A/C needs. I pulled all of my hoses out of a 87 328 GTS, sent them to them and had completely new hoses, plus fittings made. Total turn around from when I shipped the hoses to having new ones was less than two weeks. They offered reduced wall hoses in order tofit through the small confines of the 328.

 

The fittings are 1-14UNS RotaLock. The proper backhead for a 7H compressor is a CB. Sanden doesnt have an off the shelf compressor with a CB backhead installed so you need to source it separately. I bought my compressor through www.ACPARTS.COM and had them put a CB backhead on it. You can purchase the backhead yourself and swap it; it comes off without disassembling the whole compressor. Just be sure to replace the gasket, clock it correctly and properly torque the bolts.

 

Do you have to specify counter clockwise rotation when ordering the SD7H13 or is that model always CCW?


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If you have a local A/C supply they may do it for you while you stand there and wait. Mine does.