K1 Aero rear belt tension

[felix777]

Hi, I recently built my k1 aero, and have run it at two meetings so far. After almost every run I found that the rear belt keeps getting looser, even though the tensioner appears to be in the same place and tightened fully. I have had no issues with the front belt though. Could anyone possibly help me with this?
Cheers

[h0m3sy]

Could you post up a picture so we can get a closer look at your belt tensioner?

[felix777]

Here you go

[andy-aj]

Are you 100% the tensioner is not moving? Set the tensioner, then put a dot of Tipex or something similar, on the edge of the washer under the tensioner nut. Do a run, then see if the tensioner has moved.

[felix777]

Ok, will try that and let you know.

[h0m3sy]

Originally Posted by andy-aj

Are you 100% the tensioner is not moving? Set the tensioner, then put a dot of Tipex or something similar, on the edge of the washer under the tensioner nut. Do a run, then see if the tensioner has moved.

+1 on this, I've had the tensioner come loose and move before. Make sure you do it up as tight as you can. The belt will naturally become looser as it stretches as well.

[felix777]

Yes I'm going to see if the tensioner moves Thanks for all your help guys