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BTMF
Joined: 07 Oct 2003
Posts: 31
Location: Elko NV
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 Posted: Mon Nov 05, 2007 7:43 am Post subject: Timing belt tensioner pulley question... |
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Today we started to replace the timing belt, and tensioner and ran into a bit of confusion. The new tensioner does not appear to be the same part as the one we removed.
The old pulley has a large nut on the face, and the new part seems to require a special tool. Obviously I'm new to the world of car repairs, and I'm not sure how to proceed. Any help would be appreciated.
Cheers!!
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1977 294 n/a
...I've still got all my fingers, but somewhere I've lost my mind... |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Mon Nov 05, 2007 7:57 am Post subject: |
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mine looks like the new one...
I guess those holes are meant for inserting a boom-tool to accurately tension the belt.
sidequestion: does anyone know if there are plug&play tension rollers which can tension 'more'... or larger roll...? My head lies 1mm lower (machined engine block) which gives 2mm more play on my belt...
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment  |
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gohim
Joined: 02 Nov 2002
Posts: 4459
Location: Rialto, CA
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| Posted: Mon Nov 05, 2007 8:28 am Post subject: |
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The new pulley is the part that superceeded the original part that you removed from your engine.
The new part is also used on watercooled VWs and there is a special tool (about $10-$15) made for adjusting the belt tension. You should be able tool at most decent VW shops, or you can also use a bicycle bottom bracket (crank) tool.
You will need a longer bolt, and a washer to install the new belt tensioner. |
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Mon Nov 05, 2007 6:27 pm Post subject: |
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| gohim wrote: | | You will need a longer bolt, and a washer to install the new belt tensioner. |
Actually, the bolt needs to be shorter. The VW unit is about 1/2" shorter/thinner due to not having the hex nut adjuster.
I think Smoothie posted a thread on how to make an adjustment tool for the VW unit. I'll see if I can find it.
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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Ozzie
Joined: 12 Mar 2005
Posts: 4448
Location: Townsville, Qld. Australia
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| Posted: Mon Nov 05, 2007 6:40 pm Post subject: |
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I bought this spanner
http://mdmetric.com/sw/stahlwillehdr2.htm
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance |
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johnathan1
Joined: 08 Oct 2007
Posts: 308
Location: Downey, Ca
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| Posted: Mon Nov 05, 2007 8:36 pm Post subject: |
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Wow, mine doesn't look like either of those. 
_________________
-1977 924, 4-Spd...Gone
-1987 Toyota Supra Turbo, Pearl White, BPU, 300RWHP @ 10psi.
-1989 Mercedes-Benz 300SEL
WARNING: MAY CONTAIN TRACES OF AUDI OR VW! |
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zimm
Joined: 18 Oct 2006
Posts: 62
Location: Hereford, UK.
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| Posted: Mon Nov 05, 2007 8:37 pm Post subject: |
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i just used a large screwdriver to "lift" the tensioner into position by levering it against the top of water pump, then tightened the center bolt.
also .. i just used some washers to space out the original bolt .. works fine 
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6 bikes, 9 cars, 1 van.... the more you have the less they work. |
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Mon Nov 05, 2007 9:04 pm Post subject: |
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| zimm wrote: | | i just used some washers to space out the original bolt .. works fine |
Yeah, I did that at first, but you need a lot of washers (and it looks naff!)
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Mon Nov 05, 2007 10:04 pm Post subject: |
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I usually look very angry and command the tensioner to tension or else..
works fine
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment |
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Tue Nov 06, 2007 6:02 pm Post subject: |
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| Martijnus wrote: | | I usually look very angry and command the tensioner to tension or else.. |
Can you walk on water, too?
_________________
1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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Martijnus
Joined: 29 Dec 2006
Posts: 2019
Location: Netherlands
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| Posted: Tue Nov 06, 2007 9:17 pm Post subject: |
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| Mike924 wrote: | | Martijnus wrote: | | I usually look very angry and command the tensioner to tension or else.. |
Can you walk on water, too? |
sometimes... if the weather's right 
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)
924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment |
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