Timing on newly forged motor!
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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 |
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.
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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. |
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.
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coolant reroute is on my list to do also :)
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https://www.miataturbo.net/attachmen...ine=1374091088
Make sure the cam marks line up correctly like this. |
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.
However, i'll let others help you out on that. |
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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. |
Got the crew pulling the crank off. I'll keep you guys updated!!
Thanks! |
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.
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? |
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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 |
My crew is just my two friends who are helping me out today haha. Thank you Mica I'm working on it now!
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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.
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The E and the I are aligned with the backplate its just hard to get a good picture.
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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 ? |
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...
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On a megasquirt? Try messing with the trigger angle is megasquirt settings until it starts, then time it from there.
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Hmmm . . . .
90° out. Hmmm . . . . Might we have the spark plug wires connected to the wrong coils? Hmmm . . . . |
Originally Posted by hornetball
(Post 1033251)
Hmmm . . . .
90° out. Hmmm . . . . Might we have the spark plug wires connected to the wrong coils? Hmmm . . . . |
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