Timing on newly forged motor! - Miata Turbo Forum - Boost cars, acquire cats.

Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Timing on newly forged motor!

Old 07-17-2013, 04:40 PM
  #1  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default Timing on newly forged motor!

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!

Attached Thumbnails Timing on newly forged motor!-krb0csk.jpg   Timing on newly forged motor!-yvvyy5r.jpg  
claurence42 is offline  
Old 07-17-2013, 04:48 PM
  #2  
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,714
Total Cats: 272
Default

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.
Fireindc is offline  
Old 07-17-2013, 04:53 PM
  #3  
Junior Member
iTrader: (1)
 
Join Date: Aug 2006
Location: Ellicott City, MD
Posts: 456
Total Cats: 6
Default

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.
MicaCeli is offline  
Old 07-17-2013, 04:53 PM
  #4  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default

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 is offline  
Old 07-17-2013, 04:56 PM
  #5  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Talking

coolant reroute is on my list to do also
claurence42 is offline  
Old 07-17-2013, 04:58 PM
  #6  
Junior Member
iTrader: (1)
 
Join Date: Aug 2006
Location: Ellicott City, MD
Posts: 456
Total Cats: 6
Default



Make sure the cam marks line up correctly like this.
Attached Thumbnails Timing on newly forged motor!-tbelt7.jpg  
MicaCeli is offline  
Old 07-17-2013, 05:01 PM
  #7  
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,714
Total Cats: 272
Default

Originally Posted by claurence42 View Post
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.
Fireindc is offline  
Old 07-17-2013, 05:06 PM
  #8  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default


Ok I may just pull the crank pulley, but im almost posotive I got it right the cams are perfectly horizontal as well.
Attached Thumbnails Timing on newly forged motor!-ilt5b09.jpg  
claurence42 is offline  
Old 07-17-2013, 05:22 PM
  #9  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default

Got the crew pulling the crank off. I'll keep you guys updated!!
Thanks!
claurence42 is offline  
Old 07-17-2013, 05:27 PM
  #10  
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,133
Total Cats: 646
Default

Originally Posted by claurence42 View Post
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?
hornetball is offline  
Old 07-17-2013, 05:42 PM
  #11  
Junior Member
iTrader: (1)
 
Join Date: Aug 2006
Location: Ellicott City, MD
Posts: 456
Total Cats: 6
Default

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

Attached Thumbnails Timing on newly forged motor!-dsc_1797-500x308.jpg  
MicaCeli is offline  
Old 07-17-2013, 05:43 PM
  #12  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default

My crew is just my two friends who are helping me out today haha. Thank you Mica I'm working on it now!
claurence42 is offline  
Old 07-17-2013, 05:53 PM
  #13  
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,714
Total Cats: 272
Default

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.
Fireindc is offline  
Old 07-17-2013, 06:05 PM
  #14  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default





hmmmm
Attached Thumbnails Timing on newly forged motor!-rz5t5ih.jpg   Timing on newly forged motor!-xusqmwr.jpg  
claurence42 is offline  
Old 07-17-2013, 06:10 PM
  #15  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default

The E and the I are aligned with the backplate its just hard to get a good picture.
claurence42 is offline  
Old 07-17-2013, 06:34 PM
  #16  
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,714
Total Cats: 272
Default

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 ?
Fireindc is offline  
Old 07-17-2013, 06:43 PM
  #17  
Newb
Thread Starter
 
Join Date: Jul 2013
Posts: 36
Total Cats: 0
Default

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...
claurence42 is offline  
Old 07-17-2013, 07:35 PM
  #18  
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,714
Total Cats: 272
Default

On a megasquirt? Try messing with the trigger angle is megasquirt settings until it starts, then time it from there.
Fireindc is offline  
Old 07-17-2013, 07:56 PM
  #19  
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,133
Total Cats: 646
Default

Hmmm . . . .

90 out.

Hmmm . . . .

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

Hmmm . . . .
hornetball is offline  
Old 07-18-2013, 01:56 PM
  #20  
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,016
Total Cats: 1,823
Default

Originally Posted by hornetball View Post
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.
__________________
Trackspeed Engineering
High-Performance Turbo Specialists - Sunnyvale, CA - 650-701-7223 - Email us!
Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
Savington is offline  

Thread Tools
Search this Thread
Quick Reply: Timing on newly forged motor!


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.