patmac6075

iTrader: (26)

Really silly question here, but:

I did the 2GCDFIS about a year ago, and my car has run flawlessly.

I was replacing my belts today and (just because I had it handy) thought I'd pull out my timing light and see where my timing was set at.
I hook the pick-up to L1 and aimed the light down at the marker on the crank pulley....nothing (the light was flashing, but there was no mark?). Just for the heck of it I hooked it up to the T1....nothing?

I've said this many times....."Am I doing it wrong?"

j9fd3s

iTrader: (3)

maybe.

rx71king

iTrader: (6)

the paint came off.....look for marks with the car off...

j9fd3s

iTrader: (3)

seriously though, there are a couple things to check.

1. find the mark on the pulley and make sure you can see it, i find the factory pain daubs are hard to spot. i usually use some touch up paint to remark it, either spicy orange mica, competition yellow, or sunrise red.

2. if you have a timing light with a degree ****, turn it to zero. it involves math, and therefore is over my head, but the **** doesn't work on a rotary.

3. what happens if you put the light on T2? L2? (if you skipped the cap, L1 and L2 should be the same)

4. use the light and find the mark! the pulley will go on 4 different ways, maybe yours is 90 or 180 off (if you find the mark with the light on T2, then its 180).

Kentetsu

Or your idle might be too high, inducing mechanical advance which would place the markings outside of the expected "range".

Or your vacuum advance is hooked up to manifold vacuum, inducing advance at idle (which you don't want) and again moving the markings outside of the expected range.

Make sure your idle is below 950, and remove/plug the vac advance lines just to be safe.



.

13x

perhaps you've over revved resulting in the centrifugal force flinging the dots off lol

sorry,

yeah what's the idle at?

Is she running well? Don't mess with it!!

(I thought I was lossing my freakin mind last time I stabbed the dizzy, result no start to pull the dizzy out and was 180 degrees out of phase, father time is hunting me down lol)

patmac6075

iTrader: (26)

Idles rock solid at 750 rpm.

Pretty sure engine has never been tampered with (pulley and dizzy never been removed).

I'll try to find the mark in the daylight...engine off!

I'll post back

Siraniko

iTrader: (13)

use your stock or aftermarket flywheel to confirm the timing mark on your pulley

74RX4

iTrader: (10)

What Wacky said. He said more in this archived thread with pictures. Just send a Heine or 6 if it helps.
https://www.rx7club.com/1st-gen-archive-71/ignition-main-pully-timing-525909/

patmac6075

iTrader: (26)

Heinies and Korean BBQ!

That's how you get the real schinizzel from Wacky

Thanks all.

bumpstart

i think you need a better dot because when it wastesparks you also see the rear of the pulley 180 out and it confuses the issue

however as a footnote


the DLI setup is wasted spark and the inductive light is also triggering on the opposite rotor that is 180 out
but there is a phenomenon that some twin post coils can be prone to showing and effects some types of timing lights

with twin post coils one of the coils fires in opposite phase to the other
( the spark jumps from the side electrode to the centre electrode in one of the chambers )

often some inductive timing lights will not pick these up at all and you have to set the timing form the other lead
( which in wastespark situ means the same timing )

patmac6075

iTrader: (26)

Well....no mark on the crank pulley at all...should there be a groove on the pulley...cause I couldn't find anything...except some rusty scale.



Guess I owe Wacky some Heineken.

DivinDriver

iTrader: (15)

There should be a pair of grooves in the pulley, yes.

j9fd3s

iTrader: (3)

the front of the small pulley to be exact

bumpstart

here is how you locate the front pulley with the mark up