I, myself, recently (3 weeks ago) replaced: timing belt, water pump, coolant, and timing belt tensioner. I could have sworn after putting the cam and fly wheel at TDC that I nailed the tensioner so I buttoned everything up. Either it wasn’t right to begin with or it over tightened some other way.
Now every so often it makes a high pitched whirring sound that changes with rpm. I checked the tensioner and it is indeed too tight. I know I can fix it but I want to make sure I do it right. Is this how I should do it?:
- Timing covers off. Serp belt off (Mark direction of rotating for re-installation). Rotate Crank until Cam is at TDC. Check that flywheel is at TDC.
- Loosen tensioner. Readjust and check tensioner. Check that everything is still at TDC.
- If it’s not: keep loosening and readjusting tensioner until both sprockets aren’t moving off of TDC.
- Rotate Crank 2 full rotations with the last 1/4 turn being uninterrupted. Check that the tensioner is still properly tensioned. (If it’s not…?)
- Button everything back up and pray.
I don’t suppose I could do an easy way out and forego the TDC nonsense and just loosen and readjust the tensioner?
Am I causing serious damage to the car by driving it this way?
Attached is where my tensioner is at and what I used for instructions.
99’ GLS 2.0L Manual Tranny, AEG Engine code. 86,000 mi