Took my 67 SS Chevelle out of storage this weekend and did a tune up before putting it on the road. I have to admit it has been a long time since we (my brother-inlaw and I ) did a tune-up like this (points, plugs, condenser, rotor etc.) so we may be a littl out of practice (bought this car only about 8 months ago) Every thing was going fine until we went to set the timing according to the 67 Chevrolet Assembly manual. The manual said set the timing at 4 degrees BTDC. Looking at the marks on the timing plate it looks like this A !!!!!!! 0 !!!!!!!! B. To get it to idle with the Vacuum advance disconnected and plugged, I had to set the timing at the first mark too the left of 0 which no matter how you look at it is not 4 degrees. Is it possible that the timing chain is worn so much (matching numbers motor) that the timing marks are off. It was set right on 0 when we started but it seemed to run a little better the more we moved the mark to the left of 0 but we didn't want to move it to far because it seemed we were going in the wrong direction
Also since I got the car the engine has had a little knocking noise when the car is at idle .....about 800 RPM but when I raise the idle to about 1200 it goes away. I don't think it is a rod knock as it appears to be doing it sometimes and not others and goes away at increased idle speed . Could this be something related to the timing like ping or chain slap, etc.
Any ideas???
[This message has been edited by Mytmouse (edited 04-26-99).]
Also since I got the car the engine has had a little knocking noise when the car is at idle .....about 800 RPM but when I raise the idle to about 1200 it goes away. I don't think it is a rod knock as it appears to be doing it sometimes and not others and goes away at increased idle speed . Could this be something related to the timing like ping or chain slap, etc.
Any ideas???
[This message has been edited by Mytmouse (edited 04-26-99).]