Distrib. Being Off

[SeattleSy#1255]

oh ya...even after all this, i still don't understand the 180* off thing..

why does that happen and how can you tell when trying to face the rotor the correct way?

 

[bezerk]

oh ya...even after all this, i still don't understand the 180* off thing..

why does that happen and how can you tell when trying to face the rotor the correct way?

take the valve cover off, and see if all the valves are closed..
take out the sparkplug and feel if it's compressing (air blows out).

 

[Wes]

It's because the distributor turns half as fast as the crank. The piston comes up twice once for compression stroke and once for exhaust stroke. If you line up the distributor on the exhaust stroke instead of the compression, it will be 180 off. You can find the intake stroke by watching the valves (with the valve cover off) right after the intake valve closes the piston will be on its compression stroke.

oh ya...even after all this, i still don't understand the 180* off thing..

why does that happen and how can you tell when trying to face the rotor the correct way?

 

[SeattleSy#1255]

correct, but can't you find the compression stroke by removing #1 plug and feeling compression with your finger...that is what I was doing.

its great now, idles better than ever, but what a PITA.

 

[bezerk]

correct, but can't you find the compression stroke by removing #1 plug and feeling compression with your finger...that is what I was doing.

its great now, idles better than ever, but what a PITA.

you can, but it''s gonna push alittle bit of air on both strokes, compression is alot more air being pushed out..