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-   -   Timing on newly forged motor! (https://www.miataturbo.net/engine-performance-56/timing-newly-forged-motor-73951/)

claurence42 07-17-2013 03:40 PM

Timing on newly forged motor!
 
4 Attachment(s)
Hey guys! So I just rebuilt my motor and have been having a hell of a time getting the timing right. I took the CAS off and twisted it past the adjuster and the car runs great, however I know that this is only a temporary fix. I know there is a way to count the belt teeth or something to double check the timing.
Thanks!
Chase
Forged on Manley rods and 8.8:1 supertech pistons!!! Ready for a turbo!
https://www.miataturbo.net/attachmen...ine=1374090021
https://www.miataturbo.net/attachmen...ine=1374090021

Fireindc 07-17-2013 03:48 PM

19 teeth between marks looks good. Does everything line up otherwise? The main crank notch, and then the upper two. It's impossible to tell at the angle this picture was taken.

MicaCeli 07-17-2013 03:53 PM

From this angle looks like exhaust is a tooph off. But that could be the angle of the dangle.

Also no coolant re-route no ready for trubo.

claurence42 07-17-2013 03:53 PM

Hmmm ok, the yellow notch on the crank is top dead center right? I can take more pictures however I was hoping I did not have to remove the crank pulley.

claurence42 07-17-2013 03:56 PM

coolant reroute is on my list to do also :)

MicaCeli 07-17-2013 03:58 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1374091088

Make sure the cam marks line up correctly like this.

Fireindc 07-17-2013 04:01 PM

Quote:

Originally Posted by claurence42 (Post 1033141)
Hmmm ok, the yellow notch on the crank is top dead center right? I can take more pictures however I was hoping I did not have to remove the crank pulley.

I honestly was not aware that you could set the timing without pulling the crank pulley to see the "notch" on the timing belt cog.

However, i'll let others help you out on that.

claurence42 07-17-2013 04:06 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1374091604
Ok I may just pull the crank pulley, but im almost posotive I got it right the cams are perfectly horizontal as well.

claurence42 07-17-2013 04:22 PM

Got the crew pulling the crank off. I'll keep you guys updated!!
Thanks!

hornetball 07-17-2013 04:27 PM

Quote:

Originally Posted by claurence42 (Post 1033141)
Hmmm ok, the yellow notch on the crank is top dead center right? I can take more pictures however I was hoping I did not have to remove the crank pulley.

Maybe.

Crank pulleys have been know to deteriorate and slip.

Crank gears aren't always on mark either. Keyways deteriorate and there's even been one instance from a member this year where the the Woodruff key sheared, which means the crank gear wasn't aligned with the crankshaft (he had a supercharger though -- more stress).

Easy way to tell if you can rely on the crank pulley mark is to stick your dipstick into the #1 spark plug hole. You should reach TDC when indicated by the crank pulley mark. Otherwise, something else is off as described above.

Crew? You let someone else work on your Miata?

MicaCeli 07-17-2013 04:42 PM

1 Attachment(s)
You want the little marks on the teeth of the cam gears to lign up with the back cover

Read here...is about the same as your 1.6.

Yeah I stole it from Revlimiter...what of it?

NB Miata timing belt change — revlimiter.net

https://www.miataturbo.net/attachmen...ine=1374093720

claurence42 07-17-2013 04:43 PM

My crew is just my two friends who are helping me out today haha. Thank you Mica I'm working on it now!

Fireindc 07-17-2013 04:53 PM

Exactly, I'd just time it off the cog the timing belt goes around. It has a notch you can line up perfectly and go from there.

claurence42 07-17-2013 05:05 PM

2 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1374095100

https://www.miataturbo.net/attachmen...ine=1374095100

hmmmm

claurence42 07-17-2013 05:10 PM

The E and the I are aligned with the backplate its just hard to get a good picture.

Fireindc 07-17-2013 05:34 PM

Hard to tell in the pics, but as long as they are aligned you look good to go. 19 teeth between the top marks is right.

What was the problem with the motor? What ECU, injectors, etc ?

claurence42 07-17-2013 05:43 PM

The motor will not turn over if the CAS is on the adjuster, if I remove the CAS from the adjuster and spin it 90 degrees it will fire up and run great. It is a fresh motor with Manley rods, 8.8:1 pistons, and everything replaced haha kind of depressing being so close...

Fireindc 07-17-2013 06:35 PM

On a megasquirt? Try messing with the trigger angle is megasquirt settings until it starts, then time it from there.

hornetball 07-17-2013 06:56 PM

Hmmm . . . .

90 out.

Hmmm . . . .

Might we have the spark plug wires connected to the wrong coils?

Hmmm . . . .

Savington 07-18-2013 12:56 PM

Quote:

Originally Posted by hornetball (Post 1033251)
Hmmm . . . .

90 out.

Hmmm . . . .

Might we have the spark plug wires connected to the wrong coils?

Hmmm . . . .

Injectors would have to be wrong too. Something in the ECU settings is 90* off.


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