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Stevie Hall
Samba Member
Joined: September 15, 2004
Posts: 54
Location: Northern Ireland
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 Posted: Wed Jul 20, 2016 11:54 am Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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Sorry guys. Quick question here. What thread are the two screws that hold the large fan on? They are the cause of my rubbing noise. Mine seem to have gone AWOL in rebuild. Thank you 
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22711
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Wed Jul 20, 2016 12:14 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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| Stevie Hall wrote: |
| Sorry guys. Quick question here. What thread are the two screws that hold the large fan on? They are the cause of my rubbing noise. Mine seem to have gone AWOL in rebuild. Thank you |
The two threaded holes in the big fan are for a puller. They have no bearing on the fan itself whatsoever.
If your fan is rubbing and not knocking your most likely suspect is that the bolts holding the front part of the aluminum fan housing to the case have backed out and are rubbing on the fan.
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Bobnotch
Samba Member
Joined: July 06, 2003
Posts: 22410
Location: Kimball, Mi
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| Posted: Wed Jul 20, 2016 12:15 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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| Stevie Hall wrote: |
| Sorry guys. Quick question here. What thread are the two screws that hold the large fan on? They are the cause of my rubbing noise. Mine seem to have gone AWOL in rebuild. Thank you |
Those 2 holes are for aiding in the removal of the big fan. There aren't any bolts that go in them. They holes are however M8x1.25 thread.
If you've got some extra movement from the fan, then it needs rebuilding. There's a thread on it that can be found doing a search.
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Stevie Hall
Samba Member
Joined: September 15, 2004
Posts: 54
Location: Northern Ireland
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| Posted: Wed Jul 20, 2016 12:43 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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Thanks very much guys! I didn't remember there being screws in there. There is however some rocking of the fan and can see movement through the holes that are threaded. Id assumed I'd missed screws. I have a video on my phone
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KTPhil 
Samba Member
Joined: April 06, 2006
Posts: 34002
Location: Conejo Valley, CA
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| Posted: Wed Jul 20, 2016 1:09 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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| Another thing to check is the big bolt holding the fan/pulley in place. Many manuals repeat the Bug's ≈35 ft-lb torque, but the Type 3 is more like ≈90. It may be coming loose. |
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Stevie Hall
Samba Member
Joined: September 15, 2004
Posts: 54
Location: Northern Ireland
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| Posted: Wed Jul 20, 2016 1:21 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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True. It was damn tight with the engine in the car which is why I dropped it out last night. I'll remember when I'm putting it back on to make sure its FT! 
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22711
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Wed Jul 20, 2016 1:34 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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| Stevie Hall wrote: |
| Thanks very much guys! I didn't remember there being screws in there. There is however some rocking of the fan and can see movement through the holes that are threaded. Id assumed I'd missed screws. I have a video on my phone |
Uh oh.
I've had lots of problems with mismatched and misidentified main bearing sets (new non steel backed type) causing perceptible movement of the crankshaft after as little as a few minutes of running. Get the fan off and install the bolt to the crank and rock it up/ down/ to/ fro and tell us what you find.
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| Bryan67 wrote: |
| Just my hands. And a little lube. No tools. |
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Stevie Hall
Samba Member
Joined: September 15, 2004
Posts: 54
Location: Northern Ireland
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| Posted: Thu Jul 21, 2016 7:15 am Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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Any reasons why this wouldn't work? 2 M8 buttons 
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22711
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Thu Jul 21, 2016 11:04 am Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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| Stevie Hall wrote: |
Any reasons why this wouldn't work? 2 M8 buttons
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I don't care what you put in there- it won't solve anything. Those holes are for a puller!!!
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| Bryan67 wrote: |
| Just my hands. And a little lube. No tools. |
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Stevie Hall
Samba Member
Joined: September 15, 2004
Posts: 54
Location: Northern Ireland
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| Posted: Thu Jul 21, 2016 11:39 am Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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Totally agreed Tram! Ive thought about it and pulled it today. Going to do the rebuild. Better in the long run! Thanks for the help
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Tram
Samba Socialist
Joined: May 02, 2003
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Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Thu Jul 21, 2016 3:41 pm Post subject: Re: Fan rubbing / Pulling fan shroud with motor in car? |
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| Stevie Hall wrote: |
| Totally agreed Tram! Ive thought about it and pulled it today. Going to do the rebuild. Better in the long run! Thanks for the help |
Do the bolt in the crank test before you rebuild the fan...
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| Bryan67 wrote: |
| Just my hands. And a little lube. No tools. |
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