Cam chain tensioner trick

rossguzzi · 02-11-2013, 05:03 PM

I had a 450 EXC not long ago. When I got it on start up there was a little cam chain rattle. A local KTM mech told us to take it out, push the plunger back into the body almost all the way(about a penny thickness short) and reinstall. I never herd the rattle again !
I havnt had the 950 ones out so dont know if they are a similar design. Could this work on ours? I only get a rattle at hot start ups.
Cheers

Boatman · 02-12-2013, 05:23 AM

LC8 has hydraulic cct's not mechanical. You didn't state what year your 950 is but the early models can benefit from upgrading the oil pressure regulator and possibly the cct's.

Basically what your KTM mechanic had you do was reset a mechanical cct that was hanging up.

RedRupert · 02-12-2013, 05:35 AM

Quote:

Originally Posted by Boatman

You didn't state what year your 950 is but the early models can benefit from upgrading the oil pressure regulator and possibly the cct's.

This could well be true. I asked INA, the German company who make the hydraulic CCTs for KTM, and they said that they had changed the spec of the CCTs (made to tighter tolerances).

I'm not 100% sure that this is true, as usually KTM change the part-number when they alter a part, but I don't think the CCT part number has ever changed.

rossguzzi · 02-12-2013, 06:53 AM

My 950 is an 03 model. Unfortunatly I dont know too much of its history. I have on the list to check the oil pressure regulator .

02-11-2013, 05:03 PM	#1
rossguzzi ^OP Gnarly Adventurer Joined: Oct 2012 Location: Bottom left hand side of OZ Oddometer: 239	Cam chain tensioner trick I had a 450 EXC not long ago. When I got it on start up there was a little cam chain rattle. A local KTM mech told us to take it out, push the plunger back into the body almost all the way(about a penny thickness short) and reinstall. I never herd the rattle again ! I havnt had the 950 ones out so dont know if they are a similar design. Could this work on ours? I only get a rattle at hot start ups. Cheers

02-12-2013, 05:23 AM	#2
Boatman Ride more, BS less! Joined: Mar 2005 Location: Petersburg, NY and Woodbridge, VA Oddometer: 8,399	LC8 has hydraulic cct's not mechanical. You didn't state what year your 950 is but the early models can benefit from upgrading the oil pressure regulator and possibly the cct's. Basically what your KTM mechanic had you do was reset a mechanical cct that was hanging up. __________________ 08 KTM 950 SE, 04 KTM 950 ADV, 10 Husaberg FE390, 66 Kawasaki B8S Super 150 Hi/low beam conversions for: Trail Tech, Baja Designs

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02-12-2013, 06:53 AM	#4
rossguzzi ^OP Gnarly Adventurer Joined: Oct 2012 Location: Bottom left hand side of OZ Oddometer: 239	My 950 is an 03 model. Unfortunatly I dont know too much of its history. I have on the list to check the oil pressure regulator .