I recently installed a new chain tensioner only to realize that I didn't know what I was doing.

First I didn't fill it with oil, then I filled it with the wrong oil and didn't do the procedure properly.

After reading the FSM I see that I should have used SAE 10 but I used 10w-30.

I thought that I was simply priming the tensioner and that engine oil (15w-40) would be flowing through it while the engine was running, it seems that is incorrect?

The FSM also states that it should be relatively easy to push the tensioner in. However, due to my incorrect filling method or maybe the incorrect oil, mine is very hard to push in.

This seems to have created a sort of hollow metallic scraping noise coming from possibly the lower end of my timing cover. When I backed the tensioner out of the block a thread it quieted the noise down so it seems I have too much tension on the timing chain.

On my tensioner there is the hexagon for tightening the tensioner into the block and there is also a hexagon at the end of the tensioner that sticks out of the block, what is that other hexagon for? Is there some tensioner adjustment?

Thanks!

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1987 300SDL 167k
1992 Volvo 740 140k
1990 Volvo 740 250k
1989 Volvo 240 269k

Anyone want to trade an old Volvo for an '87 300sdl?