[TazR6]

It seems my aircon pump has given up on me.
Are they all the same, or will I have to match numbers on a replacement?

Thank you in advance for your time

Neil

 

[madbadandold]

How do you know its the pump? It might be a leak!

 

[reliable406]

Might be because the pulley bearing has collapsed thats the usual issue but no the numbers dont need to match there are 3 or 4 types over the years but as long as its around the same age and looks similar it will fit

I used a 407 one on an expert taxi

 

[TazR6]

Planet confirmed it. No signal from the pump.
There is definitely no leak, as it was holding 8bar.

 

[madbadandold]

OK best of luck getting and replacing it. Keep us informed.

 

[TazR6]

Managed to find one on eBay after checking Service Box for part number. SD6V12 from memory. It'll be here by Tuesday. Going to a garage to get it de-gassed, for the new compressor, then get a re-gas. Fingers crossed that I then have nice cold aircon again.

 

[reliable406]

Thats just a standard part number for the manufacturere IE sanden = SD they ALL have that number generally but as i say they are generally all interchangeable nowadays as the mounts on the pumps are standardised

 

[TazR6]

Thats just a standard part number for the manufacturere IE sanden = SD they ALL have that number generally but as i say they are generally all interchangeable nowadays as the mounts on the pumps are standardised

So it's a case of comparing them when it arrives.
cheers for that.

 

[TazR6]

Aircon working like a charm now. Shunting refrigerant through at 0.4 Deg C!
I did not need a pump after all. The regas was justified because it had not been done for years, but that was not the cause of it not working. There was 8 bar in there, so definitely no leaks.
It was my main cooling fan all along. I had not noticed that it was not working, and it needs to work for aircon to work.
It turned out that one of the plugs feeding power to the fan and corroded and crumbled into nothing.
I checked the pump by putting 12v directly to it, and the clutch activated fine.
I rewired the plug to get the fan working, and in turn the aircon started working.
Because I thought it was the pump, I bought one, and typically for me it was the wrong one. I bought another which was correct and got it fitted.
I tested the original after it had been replaced, and it worked! I did not know I could put 12 v direct to the pump to test it.
So I have 2 fully working aircon pumps to get rid of now, along with a few other parts bought in error.

 

[madbadandold]

What a pity you took the wrong diagnostic route but at least you got there in the end. Lesson learned for us all, check the damn magic wires and fluid first!!

 

[TazR6]

What a pity you took the wrong diagnostic route but at least you got there in the end. Lesson learned for us all, check the damn magic wires and fluid first!!

Amen Brother