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+--- Thread: What is this part on my om617 (/showthread.php?tid=4706)
What is this part on my om617 - euroturbo - 07-04-2013
![[Image: image.jpg]](http://s14.postimg.org/9n92w4o0d/image.jpg)
It is located next to the thermostat housing and is bolted in the head with three bolts as you can see in the pic the center one is larger than the other two. What exactly is this part and what does it do?
Most importantly does its gasket seal coolant or engine oil?
Thanks
RE: What is this part on my om617 - aaa - 07-04-2013
The chain tensioner. Oil I would guess, I have never had to change it.
RE: What is this part on my om617 - Austincarnut - 07-05-2013
(07-04-2013, 05:55 PM)euroturbo
It is located next to the thermostat housing and is bolted in the head with three bolts as you can see in the pic the center one is larger than the other two. What exactly is this part and what does it do?
Most importantly does its gasket seal coolant or engine oil?
Thanks
yes tensioner don't touch
RE: What is this part on my om617 - poleshady - 07-06-2013
when i removed my tensioner, the spring was pretty worn down,not only was it shorter and not as stiff as a new one, it had grind marks from rubbing on the inside of the tensioner, i replaced both unfortunately, could have done with just the spring it was only a few bucks
RE: What is this part on my om617 - Simpler=Better - 07-06-2013
Yup, get a new spring and gasket-it's cheap insurance and is easy