In doing my timing chain, I noticed that the two bolts holding on my timing chain tensioner are stripped. Bad deal, the tensioner loosened up and almost fell off and that's why I was having to do this in the first place.

Well I needed the truck up and running immediately, so I put blue threadlock onto the bolts as I could still put i reckon about ten pounds onto them before they slipped, and put gasket shellac onto both sides of the gasket for extra strength, like glue almost. It's held up fine for about a thousand miles of city/freeway driving.

Anyway, now that I don't need the truck so immediately I want to take it apart again to fix the threads permanently. I'm sure it probably won't hold through the entire life expectancy of the timing chain.

What I need to know is the bolt size of the bolts that hold it on. I know they're 12mm heads, and fine thread as they're all fine thread, as well as the torque I should put on them; so I can get thread inserts for them as the Haynes manual says I should do.

This is on an '87 22R.

Thanks.

 

I would tap them I havnt had much luck with the coils

 

Bolt size= M8x1.25
The bolt is 35mm long, but only 10mm of that threads into the block.

Bolt torque= 14ft/lbs

 

Thanks, I got it. Used Heli-Coil thread repair.

I approve of this system.