AAR Specifications

[j911brick]

I did a search and couldn't find what I was looking for.

A few weeks ago I was diagnosing a car and decided to to check the AAR. Then I checked a couple more I had laying around. They all seems to test at about 16 ohms. But if I recall that was about half of what they should have been. I also seem to recall they were not closing (or opening- I forget which) all the way.

Is this pretty much unacceptable? Is there a way to fix these things? Looks like they were not designed to come apart (but since when has that ever stopped us)?

[Scott R]

They come apart, drill the rivets. However they are externally adjustable as well, just remove the metal plug, it works like adjusting a WUR. Take measurements before you adjust with a caliper.

[boyt911sc]

James,

Please post the number on the AAR. I might be able to furnish you with some data. Keep us posted.

Tony

[j911brick]

Originally Posted by Scott R

They come apart, drill the rivets. However they are externally adjustable as well, just remove the metal plug, it works like adjusting a WUR. Take measurements before you adjust with a caliper.

Thanks Scott. I figured it was something like that. What do you replace the rivets with?

[j911brick]

Originally Posted by boyt911sc

James,

Please post the number on the AAR. I might be able to furnish you with some data. Keep us posted.

Tony

It was a few weeks ago and now I'm not sure what I dd with the spares. I'll let you know when I find one. I do know the ones I tested were off a 2.7S, 3.0 carrera, and '79 SC, and maybe a '82 930.

[Scott R]

Originally Posted by j911brick

Thanks Scott. I figured it was something like that. What do you replace the rivets with?

Just some small nuts and bolts. Somewhere there is a thread from way back with a guy that rebuilt the heating element.

[boyt911sc]

Originally Posted by j911brick

It was a few weeks ago and now I'm not sure what I dd with the spares. I'll let you know when I find one. I do know the ones I tested were off a 2.7S, 3.0 carrera, and '79 SC, and maybe a '82 930.

James,

The Bosch numbers should be something like these.....0-280-140-???. The last three (3) digits would identify a specific Bosch AAR.

Tony

[j911brick]

Originally Posted by Scott R

Just some small nuts and bolts. Somewhere there is a thread from way back with a guy that rebuilt the heating element.

I'll see if I can't find it.