Quote:
Originally Posted by alt77
When rebuilding my tensioners separately, the Left side chain link had slipped a link prior to installing the tensioner. ( 83 Carrera 3.0 motor,, non turbo.)
My concerns are; a) Can the Rt side cam be reset without removing the chain or having to reset the Rt side cam? b) Can the Lt cam be reset by itself as long as the Rt cam and chain remain tight ? c) Should the timing chain be removed /reset cams / then reinstall chain?
I do plan to remove the motor if necessary for ease of torquing down the cam nuts.
Or, depending on the responses to this post, raise the car safely enough to do the work on the ground.
|
There are some issues with this situation (in no particular order):
- How far did the crank rotate (if any) when the LS chain "slipped a link"?
- Is the Right bank cam in time?
- Lining up the dots at 12 o'clock is a rough estimate, but it does indicate cyls. 1 and 4 are at TDC with #1 end of compression. The many holes in the cam sprocket are there to fine tune the timing specs.
- Rotating the crank with cam timing "off" could result in valve-to-piston clearance issues. I would back off all rocker arm adjusters on the LS bank, maybe all to reduce crankshaft rotating effort. Rotate crank in clockwise direction only.
- When cam timing, the camshaft is rotated relative to the crank (the crank is stationary at TDC, only rotating to confirm valve opening and closing specs). Thus, you need a method to independently rotate the cam.
- Can be performed with engine installed. Easier with engine removed. Support engine, remove muffler and rear engine mount(s) for access.
Hope this helps,
Sherwood