K11 Owners Group

[tmoons]

hi all,

i've opened the front of my engine up to inspect my cam chain tensioner.
there are some things i would like to know more about.

1: i found no groves in the lower tensioner, i expect this to be still ok? correct?

2: the tensioner unit has a part that has a slot along its length( turned), this item also has a foot, that has a crowned edge. This is used to keep the tensioner from jumping back in to position after a certain point (picture of this item below). this foot is NO ridged to the "tube" part... is this correct, or should it be solid??

3: after installing the tensioner again, i noticed the chain to be slackened, using a big flathead screwdriver i gently pushed the tensioner up, so it jumped to a position that did tension the chain (chain seems to be TIGHT now) is this allowed or should the oil pressure do this and should i not fiddle with it? I also noticed this "new" position to be much "higher" than the old position (see comparison pictures below)

4: how much effect has the oil pump on this item, if the pump is worn or not up to scratch, could this result in a malfunctioning tensioner?

hope you can help me out!

picture old position of the tensioner:


picture of new position:


to prevent a "optical illusion discussion" it is higher, i would guess a full click.

here some pics of the guide rail

No groves or anything.

Some nice pictures of the tensioner disassembled:


here a picture of the "lose bit", in the lower left corner:

[Turbine]

Hi
Two many questions came onto my head when I came onto your questions.
With all the tensioners I have touched I have done 2 main things.
1-Measured the spring & than stretched it out to about 5 to 8mm's more.
2-The top plate item must be turned till its flat with it's housing before going back in.
Thats it.
_________________
Yamaha TX650A
K100RS x 3
K100RT TO RS
Ducati 705F1-87
K1100RSM-93

[tmoons]

Hi turbine,

i do not understand number 1.

on number 2, i can install this without any problem, all i need to know now, is if the ratched part of the tube with the grove is allowed to have play (may it wiggle on the tube, or should it be tight?)

I mean this bit:
http://www.flyingbrick.de/board/download/file.php?id=365

[tmoons]

Well there was a twist yesterday...
I took the old tensioner to the dealer and he showed me a new one (he has them on stock).
the new one was of much poorer quality (the crown part was not sharp, just nudges, instead of teeth..) it could move even more!! it made me very confident my old tensioner is ok.

live and learn

I installed everything again and filled her up with 20W50. no leaks so far...