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XF650/DR650 cam tensioner gasket XF650/DR650 cam tensioner gasket
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Photo by Andy Miller, UK, Taking a rest, Jokulsarlon, Iceland

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Photo by Andy Miller, UK,
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Jokulsarlon, Iceland



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  • 1 Post By Gipper
  • 1 Post By g6snl
  • 1 Post By mollydog

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  #1  
Old 9 Jan 2016
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XF650/DR650 cam tensioner gasket
I have a XF650 which has same engine as DR650 ( mostly )
The cam chain tensioner has developed an oil leak so clearly a gasket issue common problem apparently. I don't seem to be able to find UK supply of just this gasket, full gasket set yes, but just cam tensioner gasket is more of a problem. Anyone know of a supplier in UK or another bike part which might do the job? Is this a common Suzuki part used on others perhaps.

Or has any body successfully used an O ring?
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Old 9 Jan 2016
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I don't know the part in question but could you not buy a sheet of gasket paper and make your own?
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Old 9 Jan 2016
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I believe its the same part number for the mid 90's GSXR 600/750
Suzuki part number:12837-24A10
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Old 12 Jan 2016
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Quote:
Originally Posted by Gipper View Post
I believe its the same part number for the mid 90's GSXR 600/750
Suzuki part number:12837-24A10
Great info helped alot found plenty using part no. Thanks


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Old 13 Jan 2016
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If you don't get the entire "old" gasket off cleanly, then sometimes even after new gasket, it can still leak. (happened to me)

I put a light coat of High Temp Silicone sealer on both sides of new Gasket, leak stopped.

Yes, common problem on that part.

Do you know how to "re-set" the tensioner?
IIRC, (and DO check on your own to verify as my memory sucks)
1. bring engine to TDC on compression stroke. (forgot why you need to do this)
2. Remove tensioner, replace with new gasket.
3. Wind up tensioner clockwise until it locks. (use screw slot on end)
4. Carefully install back into place, bolt back down, tighten in stages to FULL suggested torque.
5. Release Tension on tensioner (turn clock wise a bit more CLICK, and it will release piston!)
Now the tensioner piston is pushing on cam chain to take up slack ... as it should.

With luck it should be good to go!
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Old 13 Jan 2016
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I am quite familiar with gasket replacement and "now" always go to great lengths to get everything spotless before installing new. I've learned this over the many years of spannering. Many times did I learn the hard way involving oil and water.

I haven't pulled it to bits yet but from what I can see of the part in photos it looks like a flat o ring seal might work, the tightening torque is quite light, 10Nm, so may work. May try that while I'm around local as it would be much easier to fix in the middle of somewhere not local. I know there would be ingress of dust water etc around the bolt hole areas ( o ring on each bolt too?) I guess the long term test would be the real answer to that. Just an idea
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Old 14 Jan 2016
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Not sure how well an O ring would seal on a flat plane. O rings work best when a groove in metal surface is provided for the O ring to seat into, like on the DR650 oil filter cover.

The Cam Chain tensioner on the DR uses a simple flat paper gasket on a flat surface. No provision for O ring on the 2 bolts either.

That's not to say an O ring would not work, may well work. But that bugger is known for leaking and with HEAT and TIME the OEM gasket wears out.
Most change out old gasket, replacing with new OEM one. I added Permatex high temp silicone ... for luck. No leaks!
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Old 28 Feb 2016
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make your own, buy some gasket paper and spend a few minutes cutting your own gasket out. Id mine last year, still no leaks. Hope this helps
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