[Healeys] Question on pulley/belt configuration for air conditioning

[John Rowe]

Hi Lin

I personally would go for No 2. 

No 1 does not have much contact with the alternator pulley, possibly ¼ to 1/3 of the circumference where No 2 has ½ of the circumference. As you have normal belts I believe you would get belt slippage at the alternator. This may work if you had flat belts but I think it is asking too much of normal v belts.

Regards

John Rowe

Qld Australia

 

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Linwood Rose
Sent: Tuesday, 5 May 2015 9:42 AM
To: Forum Healeys
Subject: [Healeys] Question on pulley/belt configuration for air conditioning

 

Working on the restoration of a Jaguar MK2 at the moment, and I have a question for my healey friends.

 

I am air conditioning this car. My first configuration of pulleys and belts can be seen in Image 1. All on one 1/2” “V” belt. This approach continues to use the original “jockey” pulley (to the left and above the crank pulley) for tensioning the belt although I suppose that it is not really needed since in this approach the tension can be adjusted by rotating the alternator.

 

However, I wonder about having the alternator and the compressor on one “V” belt as in image 2, and then have the crank pulley, water pump pulley, compressor and idler pulley (not tensioned) on a second “V” belt. I could accomplish this easily as the compressor has two “V” belt pulleys (one double) and I could shift the alternator to the rear to get the proper alignment.

 

Do I gain much of anything by moving to the two belts?

 

I have seen several Healeys with the stacked alternator and compressor on their own belt. Unlike in the Healey configuration, in my case the compressor would be on top and the alternator below.

 

What are your thoughts? I would appreciate hearing your views about this.

 

Lin Rose




 

 



 

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