Brian D. Cain wrote:

From: Paul <rotaryeng@earthlink.net>

Its like that old saying about love ; "I'll know it when it happens".
In this case you will know it when you hear it. :-)

BTW when you assemble the crank angle sensor or distributor what is the
proper
procedure to be sure you have it set to the right gear mesh?

Paul Lamar

Do you *really* want to know the answer to this?  I've done it two ways:

1) From memory, the way I did it was align the front rotor to TDC.  How?
I can't remember off the top of my head but I did it for a friend's Rx7 we
did an engine swap for.  

Oh, by the way, I'll be posting about 'Mazda engine
rebuilds' here in a minute now that I've been reminded.  Anyhow, when the
engine is aligned to TDC, you insert the CAS (crank angle sensor) with the
gear indention aligned w/ the notch up above it.  When I insert it, I always
have the black, plastic cap off and use one, or both, thumbs 
to keep the top gear (since both gears are attached via shaft) 
from moving itself in either  direction.

2) While still being attuned to the proper insertion of the CAS and
maintaining the 'thumb on the gear' bit, I usually do 
this by ear.  On my last two or  three engines I've done this by ear.  
I don't use a timing light, either.  I've
done it  by judging several things:  

One, apparent idle speed.  

Two, smell of fuel.

Three, 'pulse' of the exhaust.  

Four, exhaust drone noise.  You can pretty much  tell what's 
going on with this.

B

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