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1967VWS4LIFE
Samba Member
Joined: May 20, 2017
Posts: 17
Location: Goodyear, AZ
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 Posted: Sat Oct 14, 2017 11:43 am Post subject: Pully Problems |
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Tried to put on the fan belt, the belt was too short, stripped the threads (the guy gave us the wrong belt, thanks). Is there a one piece pully system that has a tensioner so we don't have to use this two piece pully? |
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fivelugshortaxle
Samba Member
Joined: May 13, 2011
Posts: 4254
Location: Aumsville, Oregon
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| Posted: Sat Oct 14, 2017 11:52 am Post subject: Re: Pully Problems |
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Yes, bit you'll also have to change the crank pulley....and by the looks of what you did from a "short belt, you should probably just get a new alternator. How do you strip steel threads because a piece of rubber was too ahort?
_________________
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2332 with lots of goodies....
Rotating assembly balanced by Brothers VW
4340 84mm crank
AA 94mm p&c' s
Total seal 2nd ring, rest are Grants
5.5 h beams
Magnum straight cuts
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Brian
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Joined: May 28, 2012
Posts: 8340
Location: Oceanside
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1967VWS4LIFE
Samba Member
Joined: May 20, 2017
Posts: 17
Location: Goodyear, AZ
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| Posted: Sat Oct 14, 2017 12:10 pm Post subject: Re: Pully Problems |
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| We used an impact gun to tighten it, and used a tap and die to make new threads. |
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fivelugshortaxle
Samba Member
Joined: May 13, 2011
Posts: 4254
Location: Aumsville, Oregon
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| Posted: Sat Oct 14, 2017 12:25 pm Post subject: Re: Pully Problems |
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| 1967VWS4LIFE wrote: |
| We used an impact gun to tighten it, and used a tap and die to make new threads. |
Why would you use an impact gun?  I've been around VW's for 25 years and I can say you're the first I've ever heard use an impact gun on am alternator pulley. Just wow.
_________________
Good things come to those who wait.
2332 with lots of goodies....
Rotating assembly balanced by Brothers VW
4340 84mm crank
AA 94mm p&c' s
Total seal 2nd ring, rest are Grants
5.5 h beams
Magnum straight cuts
Steve Long XR310 on a 106
CB 1.4 rockers
CB Magnaspark 2 distributor
NGK D7ea plugs
A1 lowdown 1 3/4 with single muffler
Dellorto 48's with 40 venturies
Kennedy Stage 2 with Daiken disc
Last edited by fivelugshortaxle on Sat Oct 14, 2017 12:29 pm; edited 1 time in total |
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FreeBug
Samba Member
Joined: March 12, 2012
Posts: 4278
Location: deepest, darkest Switzerland
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| Posted: Sat Oct 14, 2017 12:26 pm Post subject: Re: Pully Problems |
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| 1967VWS4LIFE wrote: |
| We used an impact gun to tighten it. |
Just use a 21mm wrench, tighten til it turns, check tension $$$$ saved! |
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Dale M.
Samba Member
Joined: April 12, 2006
Posts: 20379
Location: Just a tiny bit west of Yosemite Valley
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| Posted: Sat Oct 14, 2017 1:50 pm Post subject: Re: Pully Problems |
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| 1967VWS4LIFE wrote: |
| We used an impact gun to tighten it, and used a tap and die to make new threads. |
Throw the impact gun away.... If it does not go on by "hand" something is wrong... Impact gun only makes it worse...
I have several pneumatic and battery and hardly even use them as they just get me into more trouble....
Dale
_________________
“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26785
Location: Colorado Springs
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| Posted: Sat Oct 14, 2017 2:19 pm Post subject: Re: Pully Problems |
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You can convert it to a solid pulley and use a tensioner but it's not really worth doing. The stock pulley works great when used properly.
Sorry I guess you learnin the hard way. |
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74 Thing
Samba Member
Joined: September 02, 2004
Posts: 7391
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| Posted: Sat Oct 14, 2017 2:24 pm Post subject: Re: Pully Problems |
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Don't use an impact gun.
Chase the threads with a die it is M12x1.5
Don't use the stock nut, but instead use this which engages more threads (here is one from Berg)...
https://www.thesamba.com/vw/classifieds/detail.php?id=1660200
Finally when you tighten it correctly you are supposed to use too many pulley shims then remove one at a time until you reach the right belt deflection. |
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Cusser
Samba Member
Joined: October 02, 2006
Posts: 31362
Location: Hot Arizona
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| Posted: Sat Oct 14, 2017 4:26 pm Post subject: Re: Pully Problems |
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| Brian wrote: |
| You might be able to save the alternator by using a thread dye and chase the threads down. Go easy next time you tighten anything. |
See above. I had a mis-thread there on the generator in my 1971 a decade ago (and I never used an impact wrench to tighten this); I used a die to either repair or cut new threads on the rear of the generator shaft (can't remember for sure). I use a stock pulley but know that the nut I use there takes a 19mm socket now.
So this is definitely repairable, with the engine remaining in the VW.
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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ach60 
Samba Member
Joined: May 14, 2001
Posts: 4139
Location: Santa Maria
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| Posted: Sat Oct 14, 2017 4:39 pm Post subject: Re: Pully Problems |
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Being the http://vwparts.aircooled.net/SCAT-Serpentine-Belt-...ey-kit.htm kit is $199,
and the alternator is $109 to $89 depending on where you get it. It may be cheaper to just replace the alternator.
Yes it does require some skills, but you can do this job with engine in the car.
The Fan stays in the shroud, or the shroud comes up 3" so the fan clears the intake.
Also you may find that the remaining threads on the Alternator will not allow you to tighten the bolt to the new one piece alternator pulley.
From Daddybus
From Daddybus With the motor in the bus, changing out the alternator in the daddybus was a real pain,
so I removed the alternator stand mounting studs from the aluminum case and replaced them with bolts and M8 cylinder head washers.
Now I can pull the alternator without the body contortions and fancy language needed to remove the fan beforehand.
Looks like this guy got unlucky, and couldn't loosen the 36 mm nut on the fan.
You can remove the deck lid, and hinges from the bulkhead, just mark their location before hand, so you can easily align panel fit up later at re-assembly.
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Good Luck
Al |
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