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Author Subject: Crank pulley alignment
dangti6

aka JKshooter

Location: Taunton, Somerset

Registered: 15 Jun 2006

Posts: 10,305

Status: Offline
Post #1
I have this crank pulley, it is less than a year old amd hasn't done a lot of mileage.



It is from an engine which slipped it's belt. Now, a mechanic looked over the engine and said it looked like the belt had been over tightened as the belt was frayed one side.

I am having a belt done on another engine and figured if it possibly wasn't the pulley that slipped, I should be able to get away with reusing.

What sort of angle that it is supposed to be at from the hole?

It may be obvious to someone visually if that is out or not. I have no idea what it's supposed to look like LOL

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    • Posted 18th Jul 2011 at 02:56
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    pgti6

    Junior User

    Location: Melb Aust

    Registered: 20 Aug 2005

    Posts: 72

    Status: Offline
    Post #2
    Looks like its slipped.

    Have a look at RichW's pics of his alloy pulleys-
    http://www.306gti6.com/forum/showthread.php?id=74802&page=1

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    Posted 18th Jul 2011 at 07:26
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    24seven

    Seasoned Pro

    Location: Derby

    Registered: 05 Oct 2005

    Posts: 6,221

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    Post #3
    Looking at the angle between the timing hole and the notch where the woodruff key sits in the crankshaft it looks fairly close to that on the billet ally pulleys Rich makes. Without a top-down photo of both it's difficult to say, but if it's slipped it hasn't slipped by much, and if you mean it's only about a year old from new then I'd be inclined to say it's fine.

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    Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660
    Posted 18th Jul 2011 at 22:33
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    buzzbrightyear

    Seasoned Pro

    Location: hiding all receipts for car

    Registered: 09 Jul 2008

    Posts: 11,901

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    Post #4
    Looks about right to me compared to rich w pic, especially with it been pretty new,
    I'd say it was ok

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    andrew315rawson@live.co.uk
    Moonstone phase 7 gti6
    My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
    Posted 19th Jul 2011 at 04:15
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    dangti6

    aka JKshooter

    Location: Taunton, Somerset

    Registered: 15 Jun 2006

    Posts: 10,305

    Status: Offline
    Post #5
    Ive managed to find a pic of RichW's pulleys in a thread on here, and it is actually lifesize LOL



    Holding it over the screen it seems to line up fine.

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  • Senior Test Automation Engineer for the 306GTi6 Owners Club Forum Wizard

    • Posted 19th Jul 2011 at 04:19
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    bigbadbowen

    Seasoned Pro

    Location: Winchester

    Registered: 21 Nov 2003

    Posts: 13,753

    Status: Offline
    Post #6
    For the sake of £90 is it not best to be safe rather than sorry with bent valves ?

    I wouldn't use it but hey thats just me Wink
    Posted 19th Jul 2011 at 04:29
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    welshpug!

    Capt Pedantic

    Location: Bigend, Wales.

    Registered: 27 Mar 2007

    Posts: 25,839

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    Post #7
    70 degrees is the figure IIRC Smile

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    Posted 19th Jul 2011 at 15:55
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