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Author Subject: Cam pulley locking tool
prism7guy

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Location: DoncastAAAAARGH

Registered: 13 Jan 2008

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Post #1
I've had a batch of these cam pulley locking tools machined, tested one on an engine i've just built and it worked a treat.

These are £40 each delivered within the UK, if you order from outside the UK the price will increase slightly to cover the extra postage costs.

20210117_131232 by Steve Count, on Flickr

20210117_131353 by Steve Count, on Flickr

Paypal or bank transfer accepted.

Cheers

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Posted 24th Jan 2021 at 18:54
hovis16

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Location: Reading/parts for sale

Registered: 21 Nov 2008

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Post #2
Yes please

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Posted 24th Jan 2021 at 20:14
eiei0

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Registered: 08 May 2020

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Post #3
I'll take one posted to Southern Ireland let me know the total please,
Posted 24th Jan 2021 at 21:59
craig903

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Post #4
I'll take one please ( pm'd you)

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Posted 24th Jan 2021 at 22:36
Joep

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Location: Urmond (The Netherlands)

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Post #5
I’ll take one as well!

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Posted 25th Jan 2021 at 07:47
S8-Tom

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Post #6
Yes please. PM on its way...

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Posted 25th Jan 2021 at 09:17
Day666

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Location: Bristol

Registered: 20 Apr 2013

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Post #7
Me too Thumbs up

Received top job Thumbs up
Posted 31st Jan 2021 at 17:10
hovis16

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Post #8
All done and paid Smile

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Posted 26th Jan 2021 at 14:19
Connor

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Location: Lossiemouth

Registered: 29 Aug 2020

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Post #9
Yes please mate(PM’d)

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Posted 27th Jan 2021 at 21:00
jeffers Forum Admin

Location: Leeds

Registered: 14 Dec 2003

Posts: 3,702

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Post #10
Steve, I’d like one please, il message you to arrange! Thumbs up

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Posted 28th Jan 2021 at 23:06
prism7guy

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Location: DoncastAAAAARGH

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Post #11
These proved more popular than I imagined and I'm currently out of stock. I'll order another batch tomorrow and update when I have them ready to be sent out Thumbs up

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Goldie the track car.
Posted 28th Jan 2021 at 23:14
gnrlee Forum Admin

Location: Leeds

Registered: 20 Aug 2005

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Post #12
Lee,..
Steve sold me yours,.. Razz

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Posted 29th Jan 2021 at 00:16
jeffers Forum Admin

Location: Leeds

Registered: 14 Dec 2003

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Post #13
gnrlee wrote:
Lee,..
Steve sold me yours,.. Razz
Thumbs down
I’m in no rush! Thumbs up

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Posted 29th Jan 2021 at 17:34
hovis16

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Post #14
prism7guy wrote:
These proved more popular than I imagined and I'm currently out of stock. I'll order another batch tomorrow and update when I have them ready to be sent out Thumbs up


Good good

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Posted 29th Jan 2021 at 17:52
pete_rallye

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Location: Yorkshire

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Post #15
Nice job, why has no one made these before now though, would have saved many hours of f**king about! I'll take one from the next batch too thanks.

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Posted 30th Jan 2021 at 19:17
eiei0

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Post #16
Stupid question time but reading the FAQ here,

http://www.306gti6.com/forum/showthread.php?id=40662&page=1

It says to loosen the Cam Pulley's so that the can move how can this be done if they are locked,

[i]11. Rotate the cam pulleys fully clockwise, they sit in an elongated slot. These will rotate back round when you tension the belt and ensure the tension of the belt between the cams is correctly set.

12. Locate new timing belt onto crank sprocket and feed round the roller and onto inlet cam pulley, try and do this with minimal slack. Feed onto exhaust pulley and then finally round tensioner and water pump. Fit lower timing cover and put back on the crank pulley with pin.

13. Turn tensioner anti-clockwise using 8mm sump key. As you tension the belt you will see the cam pulleys rotate anti-clockwise. Keep going until you can twist the belt between inlet and roller by about 75 degrees. If you can twist it more it's too loose, if you can't twist it 45 degrees it's too tight and will cause premature failure of all components. Check the vid link below.[/i]

Or does this not need to be done,

I have a mate of mine who is a good mechanic arranged to do my belt and I am bricking it with all the horror stories about belts, He is very good but I doubt he has done a Gti Belt before,
Posted 31st Jan 2021 at 17:12
prism7guy

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Location: DoncastAAAAARGH

Registered: 13 Jan 2008

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Post #17
The cams will be locked in place with the 6mm pins and crank locked with 8mm pin, so you want the cam bolts to be finger tight during step 13 in that guide which allows the pulleys to rotate within their allowed window. Once you have the belt to the correct tension and the tensioner bolt nipped up you then fit this locking tool to lock the pulleys together and then torque up the cam bolts.
Once the cam bolts have been torqued you want to remove the tool before trying to rotate the crank (remove the locking pins too).

Once again you want to fit the tool for step 16 when you torque the cam bolts.

Hopefully my attempt at explaining this makes sense Laugh

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Goldie the track car.
Posted 31st Jan 2021 at 19:13
eiei0

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Location: Kildare

Registered: 08 May 2020

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Post #18
I'm even more confused now 🤔

I'll print out the FAQ and show it to him, my locking tool is gone for some winter sun so I might not even have it by the time we go to do it,
Posted 1st Feb 2021 at 22:13
Joep

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Location: Urmond (The Netherlands)

Registered: 19 Sep 2013

Posts: 469

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Post #19
Do I understand correctly this tool ensures that the cam pulleys do not move at all when adjusting the spanner and tightening the cam bolts? Without the might move a bit?

________________________________________

My car park:
'96 Sigma Blue XSi6
'98 Diablo Red GTi6
'99 Onyx Black S16

All RFS powered!

Plus various other Peugeots
Posted 2nd Feb 2021 at 06:18
prism7guy

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Location: DoncastAAAAARGH

Registered: 13 Jan 2008

Posts: 4,640

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Post #20
Joep wrote:
Do I understand correctly this tool ensures that the cam pulleys do not move at all when adjusting the spanner and tightening the cam bolts? Without the might move a bit?


Yes you're understanding right. The dodgy way to do it is to purely rely on the locking pins in the cams and crank pulley and tighten the cam bolts like that but this will put a lot of strain on things and you'll notice everything wanting to turn which can throw the timing out.
If you keep the cam locking pins in place whilst you tension the belt, then fit the locking tool and clamp the pulleys then tighten the cam bolts everything will stay as it should be. Then you remove the locking tool and locking pins to turn the engine over by hand to make sure everything lines back up as it should after a few crank rotations.

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Goldie the track car.
Posted 2nd Feb 2021 at 20:21
prism7guy

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Location: DoncastAAAAARGH

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Post #21
Batch 2 should be ready by the end of the week, I'll aim to get any that have sold in the post on friday afternoon once i've got and assembled them Thumbs up

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Goldie the track car.
Posted 23rd Feb 2021 at 19:25
jeffers Forum Admin

Location: Leeds

Registered: 14 Dec 2003

Posts: 3,702

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Post #22
prism7guy wrote:
Batch 2 should be ready by the end of the week, I'll aim to get any that have sold in the post on friday afternoon once i've got and assembled them Thumbs up

Steve I’ve messaged you separately! Thumbs up

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Team Running Engine again!
Team Negative Camber!
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Now appearing at a Trackday near you!!Hyper Hyper
Posted 24th Feb 2021 at 21:47
hovis16

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Location: Reading/parts for sale

Registered: 21 Nov 2008

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Post #23
Used this today. What a dream no more panic moments. Free bump

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EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


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Posted 22nd May 2021 at 16:08
83kY

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Location: Finland

Registered: 08 Jan 2020

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Post #24
I've done the timing job on a j4rs tenths of times (on both the old and new setup) but I can see the usefulness of this for the uncertain mechanic. I've personally used a counterhold tool for the cam gears without any problems and the locking tools slide in place without any force after the few turns to check it again.

BUT I could see myself using one of these is with a engine with aftermarket camshafts which have been precise timed with vernier pulleys and a dial gauge. You could turn the bottom end to the locking spot, then use this tool to lock the cam gears in place in relation to each other and swap the belt. The adjusted timing should stay spot on if the cams were timed with a new belt in the first place.
Posted 25th May 2021 at 15:57
Rich E Forum Admin

Location: Hertfordshire

Registered: 27 Apr 2005

Posts: 7,757

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Post #25
83kY wrote:
I've done the timing job on a j4rs tenths of times (on both the old and new setup) but I can see the usefulness of this for the uncertain mechanic. I've personally used a counterhold tool for the cam gears without any problems and the locking tools slide in place without any force after the few turns to check it again.

BUT I could see myself using one of these is with a engine with aftermarket camshafts which have been precise timed with vernier pulleys and a dial gauge. You could turn the bottom end to the locking spot, then use this tool to lock the cam gears in place in relation to each other and swap the belt. The adjusted timing should stay spot on if the cams were timed with a new belt in the first place.


On a standard engine it's not about the timing as that's locked in place. It's about getting the belt tension correct and evenly distributed across the length of the belt. If the cam pulleys move when you tighten the centre pulley bolt you will have incorrect distribution of belt tension which could contribute to a belt failure or the engine jumping a tooth.

Peugeot have (or had - not sure if they still carry it) a tool exactly like this only made out of hard rubber.

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Rich
Posted 25th May 2021 at 17:39

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