displaying posts 1 to 21 of 21

Author Subject: Locking cams for timing
demondriverdan

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Location: Londinium

Registered: 29 Nov 2010

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Post #1
What's the correct position for locking the cams? Haynes says 5 o'clock on inlet and 7 o'clock on exhaust, which makes sense as I can see holes in the head itself, however when I locked the crank pulley I couldn't line them up at all. We did several rotations of the crank to try and line them up but it didn't.

Any ideas?

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Rallye Race Car
Posted 9th Apr 2014 at 08:44
bigbadbowen

Seasoned Pro

Location: Winchester

Registered: 21 Nov 2003

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Post #2
Crank pulley is shot you need a decent pulley to time it all up
Posted 9th Apr 2014 at 08:50
jord294

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Location: somewhere in north wales

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Post #3
3 options:-

1:remove original crank pulley and use 8v xu pulley to get positioning
2:buy an alloy crank pulley off of someone
3:buy a genuine o/e pulley from main dealer (or me)

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Posted 9th Apr 2014 at 08:59
demondriverdan

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Location: Londinium

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Post #4
Bit more info, we're stripping it down because I (very, very idiotically) shifted in to second instead of fourth during quali and we heard a tapping sound after that so want to check everything over. Could this have cause the crank pulley to slip / break or something?

Pulley is a bit rusty but other than that looks intact, same as the one on the spare car.

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Rallye Race Car
Posted 9th Apr 2014 at 09:23
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #5
You will never know till you put a known good pulley on, i.e a solid or brand new o.e one.

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Posted 9th Apr 2014 at 09:57
demondriverdan

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Location: Londinium

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Post #6
I'm just wondering how it could be damaged, it's basically a solid piece of metal? I'll get a solid one bought, just wanted to get more info really in case it happens in future.

Any good suppliers of solid ones?

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Posted 9th Apr 2014 at 10:02
dangti6

aka JKshooter

Location: Taunton, Somerset

Registered: 15 Jun 2006

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Post #7
The OE crank pulley has rubber to the centre which can slip.

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  • Posted 9th Apr 2014 at 10:19
    demondriverdan

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    Location: Londinium

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    Post #8
    That makes sense, thanks Dan.

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    Rallye Race Car
    Posted 9th Apr 2014 at 10:34
    chiefton

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    Location: cranleigh

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    Post #9
    Dont get one from ecp tho as the one I got one time had the hole drilled through the pulley in the wrong place!!! Laugh

    I used the woodruff key when I timed mine up then put tip ex on what was ment to be the correct hole on pulley to see if was ok and was fine but I would highly recommend a solid alloy pulley!! Thumbs up I have one now brilliant bit of kit no more worries

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    cherry rallye daily (the money pit)
    Posted 9th Apr 2014 at 11:26
    demondriverdan

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    Post #10
    Already ordered a solid from Pug1Off Smile

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    Rallye Race Car
    Posted 9th Apr 2014 at 11:52
    cully

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    Post #11
    the std pulleys do slip round on there rubber bonding you can check them as there are alinment marks on the two section of the pulley if is has slipped these marks will not be lined up

    il go get a picture of the marks

    cully has attached the following image:

    Posted 9th Apr 2014 at 13:05
    demondriverdan

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    Post #12
    Thanks Cully, will check that next time I'm with the car

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    Rallye Race Car
    Posted 9th Apr 2014 at 14:44
    welshpug!

    Capt Pedantic

    Location: Bigend, Wales.

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    Post #13
    not all of them have those, I have seen three different variances of XU10J4RS crank pulleys even though there's one number.

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    Posted 9th Apr 2014 at 20:34
    stan_306gti6 Forum Admin

    Location: Kent

    Registered: 18 Jan 2004

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    Post #14
    You don't *need* to use a crank pulley to line the bottom end up - you can do it by the position of the woodruff key itself. Yes

    This will save people having to buy new crank pulleys all the time.

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    Posted 9th Apr 2014 at 23:49
    demondriverdan

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    Post #15
    From what I remember, it was still lined up on the woodruff key but the cams wouldn't line up at all. Not ideal but since we were taking the head off anyway, decided it was not the biggest thing to worry about at the time.

    When we refit, we'll put the new pulley on the bottom and line it up with the locking point and the same with the cams.

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    Rallye Race Car
    Posted 10th Apr 2014 at 00:05
    pete-gti

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    Location: Kent

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    Post #16
    If you get flywheel locked off in correct place shouldn't the cam pully holes be lined up then?
    Posted 10th Apr 2014 at 19:17
    stan_306gti6 Forum Admin

    Location: Kent

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    Post #17
    pete-gti wrote:
    If you get flywheel locked off in correct place shouldn't the cam pully holes be lined up then?


    Yes, providing the cam timing hasn't jumped during his error...

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    "Supercharged - 454.1bhp/317.5lb/ft"
    Peugeot 306 GTi-6
    2000 (X), Moonstone Love
    Posted 10th Apr 2014 at 20:03
    demondriverdan

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    Post #18
    Think timing might have jumped as we managed to lock the spare car's engine with no problem (despite it being the older style cam pulleys). Head is fine though, as are pistons. 2 of the shells are damaged so we think that's what has broken.

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    Rallye Race Car
    Posted 11th Apr 2014 at 17:10
    stan_306gti6 Forum Admin

    Location: Kent

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    Post #19
    Have you stripped it down completely then?

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    "Supercharged - 454.1bhp/317.5lb/ft"
    Peugeot 306 GTi-6
    2000 (X), Moonstone Love
    Posted 12th Apr 2014 at 07:57
    demondriverdan

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    Post #20
    Yup, only thing left in the block currently is the crank.

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    Rallye Race Car
    Posted 12th Apr 2014 at 08:03
    pete-gti

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    Post #21
    Checked your valves?,
    Posted 12th Apr 2014 at 17:44

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