So i've looked all over and seen conflicting answers to this. I know alot of guys here run the supermiata damper on the 1.8 motor so I'm looking for an answer to put my brain to rest.

My car is a '92, and I'm putting in a built 1.8 from a '96. I believe I have my timing set...verifying the timing marks on the cam gears are right, first lobe on the intake cam is pointed 9 o'clock and the first lobe on the exhaust cam is point 3 o'clock, 19 teeth between the top marks on the cam gears, and the lower crank gear "half moon" pointed up at the arrow on the oil pump. I'm about to put my supermiata damper on, so I marked the two notches on the damper with orange and white paint as seen in the pics.

My confusion is that the left mark lines up with the "T" TDC mark, and the second notch to the right is off the scale. On most of the two notch dampers I've seen, it has the left notch at the left 10 BTDC and the right notch at T. I've heard that it's different on 95 motors, 96/97 is the same as 94, etc etc.

The last pic is me placing the OEM damper up there so you can see that the two notches on that damper also reside in the same location as they do on the supermiata.

So what's the story here? Are those notches where they should be? I have a feeling like once the car is started then you would modify timing to get the orange dot at 10 and the white dot at T....does this sound right? If I fired the car up would i see the orange mark reading on the scale to the left near 10, or would I have to assign a fixed timing value in tunerstudio to set base timing?

Here's a link i found around this question, but it's the only one i could seem to dig up. http://www.mazda-speed.com/forum2/in...c,26758.0.html

Thanks in advance.

 

You're good. When running and a timing light on there, that red mark will line up with the 10 on the timing marks (stock ecu).

 

Yup, you're good to go. With timing locked at 10deg either on the stock ecu or when doing timing offset setup on a standalone the orange one will like up with the 10 and the white one will line up with tdc.

 

Thanks, just wanted to confirm the notion. Appreciate the fast response!

 

I was curious of this too, thanks everyone.

On a somewhat related note - the crank trigger wheel has it's missing teeth like 60 degrees counter-clockwise of TDC, is that correct? or did I manage to put it on wrong? I checked at least 3 times and it only seemed to fit one way - but I'd like to be sure.

 

The absolute position of the missing tooth doesn't matter, only the relative position of the missing tooth as compared to the crank sensor. This is all adjustable in software, but in general, you want the missing tooth to pass under the sensor no less than 50-60° BTDC. And I can't remember where the sensor is on a '96 engine (I assume you're using the OEM sensor).

 

I know i'm bring a thread back from the dead, but wanted to add that the timing marks of the damper got me as well. I have both the marks on the damper lined up with the "10" and "T" on the belt cover.