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MaritimeBay
Samba Member
Joined: September 16, 2013
Posts: 120
Location: Fredericton NB
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 Posted: Fri Feb 28, 2014 4:44 pm Post subject: Disc in AAR keeps springing shut despite adjustment attempts |
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My '77 Westy has a bad cold idle, so I took out the AAR to test and adjust if necessary. I found that at ambient temps, I could blow through it but with about the same pressure as blowing up a balloon. After 30 mins in the freezer, it was the same or worse! I gave it a good cleaning inside and out with carb cleaner, which seems to have loosened it up, and I'm able to pry the aperture open - the problem is that when I tighten the adjustment nut and remove the prying device (a nail), the disc just springs shut again. Has anyone else had this problem?
Thanks!
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1977 2.0L FI Westfalia.
They call my home the land of snow. |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51145
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Fri Feb 28, 2014 5:10 pm Post subject: |
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Apparently the stud the nut is on is moving when you tighten the nut or you are not moving the stud. No amount of prying the aperature open will change the setting, you have to rotate the stud until the aperture opens naturally without help and tighten the nut to keep it there.
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Rust NEVER sleeps and stock never goes out of style.
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MaritimeBay
Samba Member
Joined: September 16, 2013
Posts: 120
Location: Fredericton NB
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| Posted: Fri Feb 28, 2014 6:05 pm Post subject: |
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Yep. I broke the stud. They even said don't overtighten it... 
_________________
1977 2.0L FI Westfalia.
They call my home the land of snow. |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51145
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Fri Feb 28, 2014 6:26 pm Post subject: |
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Damn, that sucks. Short of getting some JB weld in there for a short term fix it sounds like you need another AAR.
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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MaritimeBay
Samba Member
Joined: September 16, 2013
Posts: 120
Location: Fredericton NB
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| Posted: Fri Feb 28, 2014 6:40 pm Post subject: |
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Live and learn, I suppose. I suspect something wasn't quite right with it to begin with, as the aperture didn't really open much at all (not enough to let any light through) by moving the stud from right to left within its little slot. Thanks for the help anyways though. Hopefully the replacement AAR doesn't require much adjustment.
_________________
1977 2.0L FI Westfalia.
They call my home the land of snow. |
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