timing and time again, timing question Options

[doobie123]

hi ya'll

let me just say up front, i'm pretty new to this so if my questions seem obvious, sorry
so i'm working on a 75 with a 2.0 and 5 spd. i have the engine and trans out to do the clutch and cleanup the bay etc. before i put everything back i want to set the valves.
i brought #1 piston to TDC. i did this with the use of a scope and since the engine is out, i can see the piston. when i did this, i took the cap off the distributor, and to my untrained eye, it looks like it's 180 degrees out but, i'm not sure because, well, i'm green. so my question is, is it 180 out? if so, can i just pull the distributor and rotate it where it need to be? if so, am i moving the line on the case to match the rotor or the rotor to match the line?
i guess i should also say, i bought a non running car. i had it running before pulling the drive train but just for a bit and only drove it up and down the block so i really don't know the history.
thanks for any help

[914043]

If you had it running before it sounds like you've got the piston on the exhaust stroke not compression. :)It also looks like you have a timing mark 180 around on the dist. body

[cgnj]

Looks 180 out to me. Pull the Distibutor and check that the drive gear is indexed correctly. If it is installed correctly line up the turn the body till it lines up with the rotor.

[emerygt350]

And just count your blessings that you have a type four and not some pos 302 where you can infinitely screw up the dizzy stab.

[Jack Standz]

"i brought #1 piston to TDC. i did this with the use of a scope"

The piston will be at TDC twice during its 4-stroke cyle. As already mentioned, it looks like you're on the wrong stroke for TDC on the #1 piston's compression stroke.

Use the timing mark on the fan (if it's not there, put a mark at TDC for #1 piston on its compression stroke) by unscrewing the plastic plug in the fan housing or some flywheels have it marked so it shows as TDC when the "0" mark is even with parting line at the top case.

When you have the motor at TDC #1 on compression stroke, the distributor rotor should be pointing at that mark on the distributor rim. If not, take steps to align your distributor like the drawing posted above.

Best wishes with the new-to-you 914!

[VaccaRabite]

The engine is out and you want to do valve lash anyway. just take off the valve covers and LOOK at the valves.

If the valves are both closed, you are at TDC. If the valves are rocking you are not. Don't bother with theory based on the position of the dizzy - they can be installed 180 out too. I did that and ran it like that for thousands of miles. Just look at the valves.

Zach

[doobie123]

thanks for all the info guys. i got it figured.
cheers!