911 9146 engine fan housings, Possible Mismatch?? |
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911 9146 engine fan housings, Possible Mismatch?? |
bcheney |
Dec 12 2010, 09:03 AM
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#1
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Senior Member Group: Members Posts: 1,341 Joined: 16-November 03 From: Orlando, FL Member No.: 1,348 Region Association: South East States |
My conversion is using an original 9146 case. I am using a 911 fan housing and 55amp Bosch Alternator. I have assembled and I'm not sure if I have a problem. See pics. Belt doesnt seem to align properly. I have 5 shims under and 1 shim on the outside. I'm wondering if the housing that I'm using may be a problem as it is from a later model car. Housing number is 930106102OR and you can see it on the second pic.
Attached image(s) |
Cap'n Krusty |
Dec 12 2010, 09:52 PM
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#2
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
The alternator sits too far back. All the pulley shims in the world aren't gonna fix that. The new housing has to be machined to allow the alternator to sit in the same position as the old housing did. The only thing the shims do is adjust the space between the pulley halves to compensate for differences in belt length. They have nothing to do with the fore-and-aft location of the vertical c/l of the pulley.
The Cap'n |
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