| [ Total Views: 751 | Total Replies: 9 | Thread Id: 84087 ] |
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 bajachris88
A.k.a.: Chris Leete
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The international telephone dialing code for Antarctica is 672.
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| posted on June 4th, 2010 at 12:59 AM |
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How to remove fan off generator (persistant massive bolt)
Hi guys,
I got a very stuck bolt holding the fan to the generator. I just need to get some massive torque on it.
But whats the usual technique to 'lock it up' from spinning so i can crack it open without damage?
Should i seam weld the fan while i'm at it? or will that cause unnecessary balancing concerns for a procedure thats not entirely necessary for my
application? I'm sticking with the stock belt drive.
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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waveman1500
Custom Title Time!
Also rides a Honda
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| posted on June 4th, 2010 at 01:48 AM |
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The way I did mine was to stand the whole generator assembly up vertically in a vice and then clamp the generator pulley in the vice and undo the nut.
This is easiest to do if you use a rattle gun (impact driver) as it will get the nut off without spinning the generator shaft much. In fact, after the
fan had already been removed, I got the pulley nut off simply by having someone else hold the pulley tightly by hand and then zapping the nut off with
the rattle gun. This would certainly not be possible using a breaker bar!
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1303Steve
A.k.a.: Steve Carter
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| posted on June 4th, 2010 at 08:06 AM |
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Hi
The above method in the vice works OK, if you take the outer pulley off you will find a handy flat section to put in the vice jaws.
The nut is not usually torqued up that tight, the factory torque is only about 45 ft lb, maybe try some heat on the nut.
Steve
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ian.mezz
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| posted on June 4th, 2010 at 08:08 AM |
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http://www.youtube.com/watch?v=4ewXkdPgsa4&feature=related
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Joel
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| posted on June 4th, 2010 at 10:10 AM |
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chris on the back side of the belt pulley there's 2 slots for a screw driver, that stops it from turning to undo the pulley nut, then like waveman
said take the pulley half off and the shaft has 2 flats that can lock it in a vice, or put a big shifter on it if its still on the engine.
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bajachris88
A.k.a.: Chris Leete
23 Windows of Awesome
The international telephone dialing code for Antarctica is 672.
Posts: 6661
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| posted on June 4th, 2010 at 11:52 AM |
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Thanks guys, will do.
This old generator and fan are corroded and greasy as, but the bearings in the generator are brilliant. whisper quiet. i was going to just get an
alternator, but if this unit works for the momrent, it will at least get me on the road and can upgrade when the finances allow.
Will get stuck right in. vice and breaker bar it is lol.
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears.
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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pod
A.k.a.: paul mrvw061
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i`ve got to finish this thing one day
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| posted on June 4th, 2010 at 07:57 PM |
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just watch out you dont snap the woodruff key in half  ,
as thats what happened to me because it was way to tight, but eventually got it off and put the alternator in
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bajachris88
A.k.a.: Chris Leete
23 Windows of Awesome
The international telephone dialing code for Antarctica is 672.
Posts: 6661
Threads: 534
Registered: April 8th, 2005
Member Is Offline
Location: Tanah Merah, SE-QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: A bee bit ma' bottom, now ma' bottom's big!
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| posted on June 4th, 2010 at 11:40 PM |
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thanks guys, got it off in 30 secs flat. cracked open with no damage  .
thankyou once again.
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears.
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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68AutoBug
A.k.a.: Lee Noonan
Aircooled Master
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| posted on June 5th, 2010 at 01:04 AM |
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| Quote: | Originally
posted by bajachris88
Hi guys,
I got a very stuck bolt holding the fan to the generator. I just need to get some massive torque on it.
But whats the usual technique to 'lock it up' from spinning so i can crack it open without damage?
Should i seam weld the fan while i'm at it? or will that cause unnecessary balancing concerns for a procedure thats not entirely necessary for my
application? I'm sticking with the stock belt drive.
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Hi Chris
I personally, wouldn't touch the fan..
as its easy to damage them, or get them out of balance...
I would just bolt the fan back on...
and hope it never comes loose... lol
cheers
LEE
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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bajachris88
A.k.a.: Chris Leete
23 Windows of Awesome
The international telephone dialing code for Antarctica is 672.
Posts: 6661
Threads: 534
Registered: April 8th, 2005
Member Is Offline
Location: Tanah Merah, SE-QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: A bee bit ma' bottom, now ma' bottom's big!
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| posted on June 5th, 2010 at 09:28 AM |
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Thanks Lee. yea, i guess it should be all fine for what i want out of it. I'm not running a 9000rpm red line or anything lol.
Well... not yet 
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears.
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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