I've confused myself -- timing questions...

[drooartz]

Spring tune up time, and I'm working on getting the Tunebug in as good a shape as I can. I'm sure I'm dealing with worn bits almost everywhere, but I'd like to keep driving around a bit while the new motor is being planned/rebuilt.

2 questions for setting the static timing--I've managed to get myself confused:

1. To rotate the engine, I put it in 4th gear and push the car. Which way should I be pushing the car to check where the points are opening/closing (with a test light hooked up)?

2. To retard the timing, which way do I rotate the dizzy?

Side question -- I seem to remember that for Bugeye H1 carbs the mixture nut goes out maybe 6-7 flats for a starting point, instead of the 12 listed in many manuals. Is this correct?

 

[DrEntropy]

Good plan Drew! Don't let it atrophe!

1. Push the car forward to get the timing mark lined up correctly on the pulley (with the iggy OFF). I believe it should be in the 8°~10° BTDC (Before Top Dead Center) position. THEN connect the test light to the coil L/T lead going to the points, and ground. Turn the dizzy clockwise first until the light goes out, then back until the place where it *just* comes on...

2. Dizzy runs counter-clockwise, so to retart timing turn it in the direction of rotation (C.Clockwise).

2.x I always start with 12, and tweak until the piston raise response is correct. Some may have other 'ways'. We'll see!

 

[drooartz]

Thanks, Doc. Comforting to know that I was doing the timing correctly.

 

[jlaird]

Side question -- I seem to remember that for Bugeye H1 carbs the mixture nut goes out maybe 6-7 flats for a starting point, instead of the 12 listed in many manuals. Is this correct?

Miss Agatha was happy with eight.