Everything I research tells me my timing belt is off, except its not (with pictures) - Page 2 - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions. KMiata

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 08-19-2016, 04:04 PM   #21
fig
Newb
 
Join Date: Apr 2016
Location: Long Island NY
Posts: 21
Total Cats: 3
Default

This was the head before I took it to the machine shop
fig is offline   Reply With Quote
Old 08-19-2016, 04:08 PM   #22
fig
Newb
 
Join Date: Apr 2016
Location: Long Island NY
Posts: 21
Total Cats: 3
Default

Belt will come off later today. what's the torque spec on the cam bolts?
fig is offline   Reply With Quote
Old 08-19-2016, 04:25 PM   #23
Elite Member
iTrader: (19)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,220
Total Cats: 339
Default

37 to 44 ft-lbs. for the bolts that attach the sprockets to the cam shaft.

Bookmark this site: https://sites.google.com/a/philb.us/...fications/home
rleete is offline   Reply With Quote
Old 08-19-2016, 05:19 PM   #24
Junior Member
 
Join Date: Apr 2015
Location: Denver
Posts: 75
Total Cats: 2
Default

Hmmm, judging by that picture they dont look to have any problems. I would still check just to eliminate that possibility, Especially if the machine shop put them on.
Elfering is offline   Reply With Quote
Old 08-19-2016, 10:39 PM   #25
fig
Newb
 
Join Date: Apr 2016
Location: Long Island NY
Posts: 21
Total Cats: 3
Default

All pictures are at tdc. everything was as expected, everything went back like it was. still 19 teeth between cam marks. Will attempt to start tomorrow





fig is offline   Reply With Quote
Old 08-20-2016, 06:26 PM   #26
fig
Newb
 
Join Date: Apr 2016
Location: Long Island NY
Posts: 21
Total Cats: 3
Default

ok car is running at 12* btdc and holding it. the only way the car will get in time is with the cam sensor upside down because when i use it right side up the harness isn't long enough for me to retard the timing far enough to set the timing with a light.
so timing belt is on correctly and the problem is unchanged. My next question is; if everything is on time mechanically would i cause any damage if i drive the car with the sensor like it is? i figure i can find a way to stop the sensor from moving.


this was the belt after i re-installed the cam gears:


fig is offline   Reply With Quote
Old 08-20-2016, 07:02 PM   #27
Junior Member
iTrader: (1)
 
Join Date: Feb 2009
Location: Kamloops B.C.
Posts: 154
Total Cats: 16
Default

Just out of curiosity, which coil is sparking which cylinders ? If the plug wires were swapped , that might make the CAS difficult to get in the right position. Fred B
fredb is offline   Reply With Quote
Old 08-20-2016, 07:10 PM   #28
fig
Newb
 
Join Date: Apr 2016
Location: Long Island NY
Posts: 21
Total Cats: 3
Default

I'm using the 1.8 firing order 4-1-2-3 the coils are the originals from the 1.6. The Miata being a waste spark system i didn't think it would matter. please explain
fig is offline   Reply With Quote
Old 08-20-2016, 07:20 PM   #29
Junior Member
iTrader: (1)
 
Join Date: Feb 2009
Location: Kamloops B.C.
Posts: 154
Total Cats: 16
Default

Swap the plug wires on to opposite coils . It's not about the firing order but the timing . Swapping the plug wires will change the timing at the CAS by 90" ( I think) allowing you to retime the ignition with the CAS in the correct position .
fredb is offline   Reply With Quote
Old 08-20-2016, 07:43 PM   #30
fig
Newb
 
Join Date: Apr 2016
Location: Long Island NY
Posts: 21
Total Cats: 3
Default

FREDB you are such an amazing person. you got it! i swapped the cables and it started right up in the correct cas position. I've now swapped the signal wires on the coil pack and am using the 1.8 firing order. The funny thing is i had switched them before during the swap per the FM instructions but after install (with the sensor upside down) the car wouldn't start unless i switched them back. now with the sensor right side up its obvious why it wouldn't get in time correctly. thank you so much for your help!

thanks to everyone who contributed. a few hours on this site saved me a few hundred dollars to get a shop to figure this out for me. heres cats:








fig is offline   Reply With Quote
Old 08-20-2016, 08:00 PM   #31
Junior Member
iTrader: (1)
 
Join Date: Feb 2009
Location: Kamloops B.C.
Posts: 154
Total Cats: 16
Default

Not so amazing.... Pretty sure I've made the same mistake a long time ago before I went direct fire coils. Tough thing is remembering all your old mistakes and how you fixed them ! Cheers , nice cats including the one in the pants.
fredb is offline   Reply With Quote
Old 08-20-2016, 08:04 PM   #32
AFM Crusader
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,296
Total Cats: 64
Default

Quote:
Originally Posted by fredb View Post
Tough thing is remembering all your old mistakes and how you fixed them !
Tell me about it ;-(
olderguy is offline   Reply With Quote
Old 08-20-2016, 10:36 PM   #33
Junior Member
 
Join Date: Apr 2015
Location: Denver
Posts: 75
Total Cats: 2
Default

Yep. That'd do it. Once you started talking about firing order that's where my brain went too. Glad that's been figured out.
Elfering is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Boundary Engineering oil pump stage one Miniae86 Miata parts for sale/trade 10 04-26-2016 04:08 PM
rebuilt NA 1.6l M45 supercharger mikde Miata parts for sale/trade 2 04-01-2016 08:15 PM
NA interior and 1.6 engine parts Utefan66 Miata parts for sale/trade 1 03-20-2016 11:18 PM
Idle issues with new MS3 install jko MEGAsquirt 2 03-15-2016 03:05 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 05:04 PM.