 Crank pulley, 6 cylinder gurus |
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| Montreal914 |
 Oct 9 2025, 08:55 PM
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#1
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Senior Member  Group: Members Posts: 1,932 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California 
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I would like to get rid of this double pulley on the crank of my 86 3.2 engine and replace it with a single pulley like the early engines.
Which year or engine single pulley would be compatible (same diameter) as a replacement? Would it have the same timing marks? Or, have people drilled the spot welds to get rid of the A/C pulley? (IMG:style_emoticons/default/confused24.gif)  |
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| Montreal914 |
Oct 9 2025, 11:54 PM
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#2
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Senior Member Group: Members Posts: 1,932 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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Yes, this looks very good but I don't know if it fits with my engine mount (Maddogs dual mount).
When looking at the Clewett website, they describe this kit as "Undedrive" for 74-89. I guess this means my pulley (86) is smaller than 73 and earlier? Does this mean that a stock single 74-89 pulley would work? (IMG:style_emoticons/default/idea.gif) I assume not all 911 of those years came with A/C? |
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| Spoke |
Oct 10 2025, 05:21 AM
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#3
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Jerry Group: Members Posts: 7,255 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(Montreal914 @ Oct 10 2025, 01:54 AM)  Yes, this looks very good but I don't know if it fits with my engine mount (Maddogs dual mount). When looking at the Clewett website, they describe this kit as "Undedrive" for 74-89. I guess this means my pulley (86) is smaller than 73 and earlier? Does this mean that a stock single 74-89 pulley would work? (IMG:style_emoticons/default/idea.gif) I assume not all 911 of those years came with A/C? They have a version with the stock ratio. 3.2-3.3 Serpentine fan belt conversion 1984-89 - Stock Ratio I bought the version with the crank trigger as I'm getting rid of the distributor and going coil on plug. |
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Posts in this topic
Montreal914 Crank pulley Oct 9 2025, 08:55 PM
Spoke I'm changing the V-belt and dual pulley like y... Oct 9 2025, 11:05 PM sixnotfour 74-89 crank pulley will work TDC and 120 deg. mark... Oct 10 2025, 01:20 AM mepstein Yes, people do remove the dual pulley on a 3.2, ei... Oct 10 2025, 06:14 AM Cairo94507 We did the Clewett serpentine belt pulley system o... Oct 10 2025, 08:09 AM
mepstein
We did the Clewett serpentine belt pulley system ... Oct 10 2025, 08:16 AM Montreal914 All, thank you for the great inputs! :trophy:... Oct 10 2025, 08:56 AM mepstein
All, thank you for the great inputs! :trophy... Oct 10 2025, 09:16 AM mepstein Just a quick note about the aftermarket ignition. ... Oct 10 2025, 09:24 AM Montreal914
Just a quick note about the aftermarket ignition.... Oct 10 2025, 08:11 PM ClayPerrine
[quote name='mepstein' post='3227573' date='Oct 1... Oct 13 2025, 05:26 AM Montreal914 Thank you Clay for your input. :beer2: No plan on... Oct 13 2025, 07:33 PM |
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