different small fan/pulleys?

Matthew Tolbert · Posted: Wed Jul 01, 2009 12:23 pm Post subject: different small fan/pulleys?

are their different small fans? maybe 6V versus 12V? i ask because i have recently gotten a 65 notchback and it was missing some engine tins so i took the engine out and found the tins i needed. when i got the fan off i noticed it was messed up some where it goes into the large fan. i got another fan from when i was looking for the engine tins that was in better shape so idecided to use it instead. well i got everyting back together and when i put the generator belt on it was way too loose (this is with all the shims on the outside of pulley). i noticed the groove in the new pulley allows the belt to sit deeper than the other (possibly worn). this is not an original engine but a dual port and has been converted to 12 volts. if anyone knows the part number for a correct length belt that would be a great help if not i will do the trial and error method and hopefully come up with something.

thanks
_________________
Matthew Tolbert
1958 ragtop
1961 doublecab
1965 Notchback S

Russ Wolfe · Posted: Wed Jul 01, 2009 12:26 pm Post subject:

9.5mm x 1000mm is the original size for a belt.
Very early engines had a different drive pulley. But other than those, they are all the same diameter. They just had different timing marks.

And yes, they can wear. Here is a picture of one that wore out completely. They engine had many miles of gravel roads.

Image may have been reduced in size. Click image to view fullscreen.

_________________
Society is like stew. If you don't keep it stirred up, you end up with a lot of scum on the top!--Edward Abbey

Gary: OK. Ima poop.

Matthew Tolbert · Posted: Wed Jul 01, 2009 4:41 pm Post subject:

thanks Russ Smile

i thought that might be the case. i will measure the belt i have and go from there.
_________________
Matthew Tolbert
1958 ragtop
1961 doublecab
1965 Notchback S

Aaron M265 · Posted: Fri Jul 03, 2009 1:45 am Post subject:

I have seen some genuine aluminium T3 fans which have a steel liner fitted from factory where the belt runs.

These fans were fitted to some low mileage engines imported out of Germany back in the 1980's so might have been very late model. Those fans won't wear out- if you can find one (all 3 engines we bought had them as original equipment).

I also have a large steel fan (an original) that has a slightly larger hub (the outside diameter) and again this was an original VW part. If not careful, this fan could cause some interference problems with the original fan housing.

Be aware that all T3 fans (steel and alloy) are not created equal (99% of the time they are though).
_________________
Aaron

http://1500notchback.blogspot.com/

Need to contact me? Email is faster than a PM - [email protected]

For T3 Panel Van information:
http://www.thesamba.com/vw/forum/viewtopic.php?t=389465

Russ Wolfe · Posted: Fri Jul 03, 2009 8:47 am Post subject:

Matthew Tolbert · Posted: Fri Jul 03, 2009 11:12 am Post subject:

Aaron you want to get rid of one of those pulleys? i might be interested Smile

thanks for the information either way. i am going to be putting the other pulley back on. i cleaned it up and believe i can use it so maybe i can get on the road.
_________________
Matthew Tolbert
1958 ragtop
1961 doublecab
1965 Notchback S

Aaron M265 · Posted: Fri Jul 03, 2009 8:43 pm Post subject:

Russ- let me forage through my pile of stuff and see what is there. Those over size fans are a god send some times. email me on my email below so I have your address.

As for the steel lined alloy pulleys', I am sure I have none left now as I used to use them on all my old engines that were daily driven which ended up in cars that are long gone.

I would be asking some of the European T3 chaps if they have those alloy fans with the steel insert- they should be easy to get over there (comparitively...).
_________________
Aaron

http://1500notchback.blogspot.com/

Need to contact me? Email is faster than a PM - [email protected]

For T3 Panel Van information:
http://www.thesamba.com/vw/forum/viewtopic.php?t=389465

Aaron M265 · Posted: Sat Jul 04, 2009 5:29 am Post subject:

Okay I went to the parts pile and found all my steel fans.

I measured the whole lot and found only 1 that was 0.5 mm over sized in the hub so they do exist but are not common (if I recall correctly, this fan was fitted to a factory rebuilt engine that we bought from Germany and dismantled in Australia). Part number is 311 119 105 G.

There are no give aways to this fan being any different visualy so you have to measure the hub and compare the measurment to a standard one. No part number written on either.

As Russ mentioned this might be a key item to find if you have a small oil leak due to crank case issues so start measuring your steel fans people, you might find one in your pile of stuff.
_________________
Aaron

http://1500notchback.blogspot.com/

Need to contact me? Email is faster than a PM - [email protected]

For T3 Panel Van information:
http://www.thesamba.com/vw/forum/viewtopic.php?t=389465


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