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When installing a dizzy is there a way that I can know for sure that I am on the compression stroke without taking the valve cover off? More times than not I end up 180deg out. I hope you boys are going to say stick finger in hole, turn crank, slip off milk crate and impale yourself on hood latch.
Last edited by redneck hillbilly; Sep 8, 2003 at 01:04 PM.
ok well all you do is look on the vibration dampener for some timing marks. there will be degree number on the outer edge of the dampener it will haveatc and btc marks. you need to turn the engine over until you timing pointer points to 6 btc then you drop the distributor in making sure the rotor points towards #1 contact on the cap or close enough that you can turn the distributor. and also make sure that your oil priming rod is fitted right or else your pump will not work.
Yes, in fact there is, but you'll wish that you had just stuck your finger in the hole:
notice the firing order of the engine, or the cam you have installed if it is different. once you have found what appears to be where you want to set your timing on the #1 cylinder, look around to see which other valves are undergoing lift. Reference the cam specs, as well as your knowledge of 4-cycle engine valvetrain events, and figure out exactly which cycle the #1 cylinder is performing, and reassure yourslelf that you are either on the compression stroke, or 180 out.
Now that I read you don't want to take the timing cover off, I retract my entire statement.
Try this:
remove the oil pan. Note the crankshaft position relative to the other cylinders, and inverse this information based on the firing order. Note that this only works for factory cams, or cams where the firing order is identical to the stock order.
Here is how I always stab a distributor in on a new motor;
Find TDC on the compression stroke (firing position) by pulling the #1 plug and stick you finger in the hole. Turn the crank until you feel pressure blowing out.
After you have verified #1 at TDC in the firing position. Line up the balancer to 10*BTDC and drop the distributor in pointing to the #1 plug wire on the cap.
Now snug up the hold down and turn the distributor all the way retarded (counter clockwise) then hook up your timing light to the #1 wire and battery. Turn on the ignition key. Hold the triger on the light and turn the distributor clockwise SLOWLY. When the light flashes your are perfectly timed to 10* BTDC.
Just watch out for the latch. BTW, I found the step stool to be pretty stable!