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:
[Blockierte Grafik: http://lh5.ggpht.com/_4DMzYTZxbYA/S83eRyd0qQI/AAAAAAAABko/6ZDllntD54I/s720/DSCN6511.JPG]
picture of new position:
[Blockierte Grafik: http://lh5.ggpht.com/_4DMzYTZxbYA/S83rpc4m6mI/AAAAAAAABnI/I6w2C55XJfE/s720/DSCN6522.JPG]
to prevent a "optical illusion discussion" it is higher, i would guess a full click.
here some pics of the guide rail
[Blockierte Grafik: http://lh6.ggpht.com/_4DMzYTZxbYA/S83kjrHex8I/AAAAAAAABmY/RXJWuvcUoWY/s720/DSCN6519.JPG]
No groves or anything.
Some nice pictures of the tensioner disassembled:
[Blockierte Grafik: http://lh6.ggpht.com/_4DMzYTZxbYA/S83kLLL0MfI/AAAAAAAABmE/wvc2PPTdvTQ/s720/DSCN6516.JPG]
here a picture of the "lose bit", in the lower left corner:
[Blockierte Grafik: http://lh4.ggpht.com/_4DMzYTZxbYA/S83kawzPzsI/AAAAAAAABmQ/DSBlYBasoo4/s720/DSCN6518.JPG]