 911 9146 engine fan housings, Possible Mismatch?? |
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| 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.
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| sixnotfour |
Dec 13 2010, 03:34 AM
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#2
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914 Wizard Group: Members Posts: 11,184 Joined: 12-September 04 Member No.: 2,744 Region Association: NineFourteenerVille 
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Shim count
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| bcheney |
Dec 13 2010, 06:52 AM
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#3
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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 |
As usual...thanks for all the replies everyone. You guys are the best. I am going to search a stash of mine to see if I have a 901 housing...that would solve the problem. Otherwise I will look into producing some 9.5 mm spacers to compensate.
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| Mark Henry |
Dec 13 2010, 08:07 AM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(bcheney @ Dec 13 2010, 07:52 AM)  As usual...thanks for all the replies everyone. You guys are the best. I am going to search a stash of mine to see if I have a 901 housing...that would solve the problem. Otherwise I will look into producing some 9.5 mm spacers to compensate. On the housing measure the depth of where the alternator seats in the inner ring. I was wrong about the half inch, it's closer to .400 deeper on the one ring I have. This is about the same as your 9.5mm figure so you have the wrong alternator or housing, you have to swap one of them out. Just adding a 1cm spacer to the pulley end is a bad idea, the pulley nut will nothing left to grab onto. Last thing I'd want is to have only a couple of threads holding my pulley and fan on. Putting shims under the alternator might be sketchy as well. BTW both of the the housings I have are the same 901 part number even though the alt mount depths are different. |
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Posts in this topic
bcheney 911 9146 engine fan housings Dec 12 2010, 09:03 AM
jt914-6 I'm using my orignal six fan housing # 901 106... Dec 12 2010, 09:20 AM sixnotfour The fan and housing are a mate, It is the alternat... Dec 12 2010, 09:27 AM MDG
Housing number is 930106102OR and you can see it ... Dec 12 2010, 09:58 AM sixnotfour
Yes too deep , therfore you need a spacer or corr... Dec 12 2010, 10:48 AM
bcheney Do you know what could be used as a spacer if I de... Dec 12 2010, 11:35 AM rfuerst911sc Brian I believe the proper count of shims is seven... Dec 12 2010, 03:44 PM tomeric914 Fan housings changed depth as the alternator amp o... Dec 12 2010, 04:05 PM Cap'n Krusty The alternator sits too far back. All the pulley ... Dec 12 2010, 09:52 PM Mark Henry I'm seeing I'll have a similar issue...or ... Dec 12 2010, 11:40 PM sixnotfour
9.5mm for your setup - bosch alt/ 930.0R ring
... Dec 13 2010, 02:57 AM Mark Henry Here's what I'm talking about, both housin... Dec 13 2010, 11:01 AM sixnotfour Mark , you have an early one (bosch) and a later 7... Dec 14 2010, 04:57 AM Mark Henry So how many amps on the smaller Bosch alternator? ... Dec 14 2010, 07:25 AM bcheney 55 amp Bosch alt. uses the shallow housing...5mm m... Dec 14 2010, 07:40 AM |
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