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05-05-2020, 04:33 PM | #1 |
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DIY Belt Change
Apologies as I know this has been covered a few times but I thought I'd try and prepare and get as much up to date info as possible!
Looking to do the belts myself for the first time so any advice/tips/tricks I should be aware of? I've watched some videos (back in the garage) and read some threads here. Main questions at the moment are: is there a special tool to lock everything in place to stop the timing going out? Can someone explain the belt tensioning with the allen key? Saw it mentioned a few times and seems to be what most people do, I have a rough idea what it is but best to make sure |
05-05-2020, 04:47 PM | #2 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
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There are locking tools for the cams 2off part# 88713.2282 but you can get away without them.
The 'allen key' method is explained in detail here http://www.ducatisuite.org/belttension.html check out https://www.gatescarbondrive.com/products/tools app, it's meant for bicycles drive belts but works well. There's also a tensioner included in JPDiag, if you have a laptop and a remote microphone. |
05-05-2020, 05:07 PM | #3 |
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Join Date: May 2007
Location: Stockbridge
Bike: M900
Posts: 1,984
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It isn’t hard.
Just take your time, highlight the pulley markings and pointers with typex, take a few photo’s of everything before you slacken the tensioners, and check twice after hand cranking the engine a couple of turns before putting the belt covers back on. Are you changing the tensioner bearings too? Those do wear/seize/get notchy after a while. Also, bear in mind that the markings probably won’t align exactly with the pointers. The teeth on the toothed belt have to fit in the slots for them, so there are no half tooth options. Just go with the one that looks most like what was there before you started.
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05-05-2020, 06:02 PM | #4 |
Upsetting normal people..
Join Date: Mar 2007
Location: Portreath
Bike: S2r
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The hardest part is removing the covers and getting them back on without scratching them
Read up / watch the youtube videos and take your time, they aren't that hard to do
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05-05-2020, 07:20 PM | #5 |
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Thanks for the responses guys, I'll give it a shot!
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05-05-2020, 08:00 PM | #6 |
Member
Join Date: Feb 2009
Location: Brighton
Bike: M750
Posts: 146
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DIY belt changes are really quite straightforward, I found it took more time to remove the belt covers than change the belts. I used the Allen key method for setting/checking the belt tension.
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05-05-2020, 08:17 PM | #7 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
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just make sure you turn it gently by hand for two full turns of the engine when you're done, just to make sure everything's lined up
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06-05-2020, 07:21 AM | #8 |
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Will do
Are the bearings meant to be done as well or is it just a check it and see? |
06-05-2020, 07:50 AM | #9 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
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just check for any play or signs of notchiness
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06-05-2020, 02:23 PM | #10 |
Imagineer
Join Date: Feb 2005
Location: West Kilbride
Bike: S2r
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As already mentioned, a fairly simple task.
Marking the pulleys position makes life a lot simpler, when you remove the belts one of them- the top pulley for me will move as its under tension, it doesnt move far and its a very simple thing to get it back to its marked position using the new belt itself to turn it round. Likewise, removing the covers was the trickiest thing, - apart from getting the old oil filter off, mine ripped though I got there eventually. Just take your time and enjoy the work.
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06-05-2020, 02:27 PM | #11 |
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I think I've slightly confused myself when it comes to setting the tension. I've read that each cylinder needs to be set to TDC when tensioning but I have a feeling this might be for the DS engines?
Also does anyone know the torque value for the bolts? I'll have to buy another wrench as mine doesn't go that low |
06-05-2020, 02:42 PM | #12 |
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Join Date: Jul 2003
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there’s effectively no difference between your s2r and a ds, as far as methods are concerned, yes: check at tdc
20Nm for the static roller + loctite (if you need to change it) 26Nm for the tensioner roller Last edited by slob; 06-05-2020 at 02:47 PM.. |
06-05-2020, 02:51 PM | #13 |
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Cheers slob
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06-05-2020, 02:58 PM | #14 | |
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Join Date: Aug 2011
Location: Southampton
Bike: M1100evo
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Quote:
If you use the cam locking pins, then you can check both horizontal and vertical belt tensions with the motor at horizontal TDC. If you're not using the locking pins, then rotate the motor until the vertical cylinder is at TDC power. http://www.ukmonster.co.uk/monster/s...ad.php?t=58304 |
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06-05-2020, 03:12 PM | #15 |
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