canyoneagle
Striving for mediocrity
- Joined
- Aug 26, 2011
- Location
- Chapel Hill, NC
I've recently purchased a 1979 245 DL with an M46 (B21F K-Jet) and am in the process of going through a major initial freshening up (cooling system, exhaust system, ignition system, injectors/filter, underhood rubber).
First off, I'd like to give a huge shout out of gratitude to TB'er impolvo for providing space in his carport for me to do this work. I don't currently have a suitable place to wrench on the car. Thank you!
Anyway, I replaced the timing belt and I have a question about the alignment of the indexing mark on the new belt and the notch on the cam pulley. The other indexing marks aligned perfectly with the other pulleys, but the cam pulley notch does not line up 100% with the indexing mark on the belt. It seems that it is pretty evenly off (midway) between belt teeth.
Has anyone here seen this on their B21F engines? If so, should I lock the belt in with the mark slightly clockwise (when looking at the front of the cam) or slightly counter clockwise from the notch?
Tips?
I plan to pull the cam cover to see where the cam is on the #1 cylinder just to tripe check everything. The rotor appears to be dead on at #1 and the crank pulley timing mark is at 0.
I didn't get a photo of it before I shut down last night, but can try to snap one if needed.
First off, I'd like to give a huge shout out of gratitude to TB'er impolvo for providing space in his carport for me to do this work. I don't currently have a suitable place to wrench on the car. Thank you!
Anyway, I replaced the timing belt and I have a question about the alignment of the indexing mark on the new belt and the notch on the cam pulley. The other indexing marks aligned perfectly with the other pulleys, but the cam pulley notch does not line up 100% with the indexing mark on the belt. It seems that it is pretty evenly off (midway) between belt teeth.
Has anyone here seen this on their B21F engines? If so, should I lock the belt in with the mark slightly clockwise (when looking at the front of the cam) or slightly counter clockwise from the notch?
Tips?
I plan to pull the cam cover to see where the cam is on the #1 cylinder just to tripe check everything. The rotor appears to be dead on at #1 and the crank pulley timing mark is at 0.
I didn't get a photo of it before I shut down last night, but can try to snap one if needed.
Last edited: