Best Way to set the idle mix on a 4160

[steve meltzer]

i actually thought of that, but dismissed it as a "Zebra". probably on my list. 30-40% chance of rain tomorrow, so may have to drive the p/u to work, if not i'll drive the car and check it out. thanx. s

[patrickt]

Originally Posted by steve meltzer

i actually thought of that, but dismissed it as a "Zebra". probably on my list. 30-40% chance of rain tomorrow, so may have to drive the p/u to work, if not i'll drive the car and check it out. thanx. s

If you've never used one before, it's kind of a "screw-spike within a screw-plug." There's also an easy way to find TDC without having to turn your engine backwards. Just pull the #1 plug, put a long stick in the hole so that you can observe the rise and fall of the piston, and turn the crankshaft via the crank bolt until the stick comes all the way up, and then starts to go back down. Put the TDC finder in the hole and screw the spike down gently until it comes in contact with the piston head. Mark the timing pointer's location on the balancer. Then rotate your crank again one full turn until it comes back up again and is stopped by the TDC finder. Mark the timing pointer's location on the balancer. TDC should be at the mid-point between your two marks. If it's not, then either you screwed up this process or the balancer has spun. Uhhhhh, just to be on the safe side, take your ignition key and hide it in your sock drawer with a sign on it that says "Did you remember to remove the TDC finder?" Trying to fire up your car with the TDC finder still screwed in your spark plug hole is a great way to start a really bad day.

[steve meltzer]

thanx Patrick. i believe i have piston stop device from a few years back. ?? this weekend or ?? thanx. (I hate work...it's the curse of the middle class). s

[patrickt]

Originally Posted by steve meltzer

thanx Patrick. i believe i have piston stop device from a few years back. ?? this weekend or ?? thanx. (I hate work...it's the curse of the middle class). s

Just have one shipped to you Prime from Amazon. That'll give you an excuse for not doing it tonight. Make sure the threads are right though for whatever head you have on that Vette. This one looks just like the one I have.

[steve meltzer]

OK, i have a green one will that do in a pinch? <G> s

[patrickt]

Originally Posted by steve meltzer

OK, i have a green one will that do in a pinch? <G> s

Never miss an opportunity to buy another tool. Here was the thread on when I spun my balancer, ridiculously long, as usual. What was funny is that I was staring right at the balancer, with the timing light on it and watching the marks dance everywhere you could possibly imagine, and it took a good minute or more before my brain could register the fact that it had come completely apart. Crankshaft Dampner Separated -- Arghh!

[steve meltzer]

most impressive! I doubt that's my problem, as I have nice steady marks on the balancer with a timing light...we all love tools, and last winter I bought an Innova timing light. gawd I love that light. nice. s