1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

GSL-SE with S5 block. Having trouble setting timing.

Thread Tools
 
Search this Thread
 
Old 03-22-15, 08:34 PM
  #1  
Moderating the Trochoid

Thread Starter
iTrader: (56)
 
RW-7's Avatar
 
Join Date: Oct 2005
Location: Willamette Valley, OR
Posts: 1,899
Received 3 Likes on 3 Posts
GSL-SE with S5 block. Having trouble setting timing.

Hello again all.
I recently installed a series 5 block into my GSL-SE.
I am using all stock wiring, Ecu, injectors, distributor and AFM.
I am using a series 4 intake and a series 5 block with all series 5 internals.
Recently rebuilt with about 300 miles on the engine.

My problem is that when I set the engine to TDC and install the lined up dizzy, the timing is way off.
Like I can't even see the marks on the pully with the timing light as its cranking.
The pully was marked at TDC when rebuilt. The engine ran fine in anothe car. And the dizzy worked fine when I pulled the car into the shop a couple months ago.
Thoughts? Questions? Ideas?
Please chime in if you can help.
Thanks!!
-Robert.
Old 03-23-15, 09:30 AM
  #2  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,841
Received 2,605 Likes on 1,848 Posts
there shouldn't be any trick to it, unless the CAS gear is backwards. i would set the engine to -5 BTDC, like its supposed to be, and drop the dizzy in like its supposed to be. if that doesn't work, then move the distributor a tooth until its right.

if the CAS gear is in correctly, the distributor will be just slightly off center in its adjustment, and if the CAS gear is wrong it'll be nearly maxed out.
Old 03-23-15, 12:14 PM
  #3  
Moderating the Trochoid

Thread Starter
iTrader: (56)
 
RW-7's Avatar
 
Join Date: Oct 2005
Location: Willamette Valley, OR
Posts: 1,899
Received 3 Likes on 3 Posts
Originally Posted by j9fd3s
there shouldn't be any trick to it, unless the CAS gear is backwards. i would set the engine to -5 BTDC, like its supposed to be, and drop the dizzy in like its supposed to be. if that doesn't work, then move the distributor a tooth until its right.

if the CAS gear is in correctly, the distributor will be just slightly off center in its adjustment, and if the CAS gear is wrong it'll be nearly maxed out.
Distributor is spinning counter clockwise. Is that right?
Also how would I tell if the CAS gear is wrong?
Old 03-23-15, 12:28 PM
  #4  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,841
Received 2,605 Likes on 1,848 Posts
Originally Posted by RW-7
Distributor is spinning counter clockwise. Is that right?
i think so yes. try that, if its wrong it won't hurt anything


Also how would I tell if the CAS gear is wrong?
you won't know until the engine is timed, so it doesn't matter
Old 03-23-15, 01:24 PM
  #5  
Moderating the Trochoid

Thread Starter
iTrader: (56)
 
RW-7's Avatar
 
Join Date: Oct 2005
Location: Willamette Valley, OR
Posts: 1,899
Received 3 Likes on 3 Posts
So from what I read the rotor on the dizzy also needs to be in line pointing to L1 correct?
Is there a way to adjust the rotor so it lines up to L1 at TDC?
Old 03-23-15, 01:45 PM
  #6  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,841
Received 2,605 Likes on 1,848 Posts
Originally Posted by RW-7
So from what I read the rotor on the dizzy also needs to be in line pointing to L1 correct?
Is there a way to adjust the rotor so it lines up to L1 at TDC?
lol, stop thinking about it. line the engine up to -5 TDC, line up the marks on the dizzy, put the distributor in, start it, time it. if you can't adjust the distributor far enough stop the engine, put it on -5, pull the distributor enough to move the rotor over a tooth, and try again until you can get the timing to line up.

if it doesn't run, you can still put a timing light on it, and crank it, if you're one person, the "start" wire has a connector by the steering box, and if you give it power, the car will crank
Old 03-23-15, 02:16 PM
  #7  
Moderating the Trochoid

Thread Starter
iTrader: (56)
 
RW-7's Avatar
 
Join Date: Oct 2005
Location: Willamette Valley, OR
Posts: 1,899
Received 3 Likes on 3 Posts
Awesome.
Ya it's just me and I do have a tendency to over think these little things. Especially when it's the last piece of the puzzle. I will try that!
Thanks!
Old 03-23-15, 04:44 PM
  #8  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,841
Received 2,605 Likes on 1,848 Posts
Originally Posted by RW-7
Awesome.
Ya it's just me and I do have a tendency to over think these little things. Especially when it's the last piece of the puzzle. I will try that!
Thanks!
yeah everybody does, and with this one, its too confusing, better to just do it until it works
Old 03-23-15, 08:40 PM
  #9  
I have a rotary addiction

iTrader: (18)
 
NCross's Avatar
 
Join Date: Jun 2006
Location: Columbia, Tennessee
Posts: 4,815
Received 23 Likes on 22 Posts
Yellow mark is -5 right? Not 0?
Old 03-31-15, 12:45 AM
  #10  
Moderating the Trochoid

Thread Starter
iTrader: (56)
 
RW-7's Avatar
 
Join Date: Oct 2005
Location: Willamette Valley, OR
Posts: 1,899
Received 3 Likes on 3 Posts
Was a bad dizzy.
A friend gave me a used one. And I dropped it in (set to TDC) and it fired right up!
The dizzy has a mark on the shaft that you line up when the engine is at TDC. When you do this the dizzy rotor should be pointing at L1. The bad dizzy was 180' away from L1. The good one lined right up.
Kind of weird. Never seen that before. I will post pics later when I pull it out to clean and paint it.
Old 03-31-15, 09:34 AM
  #11  
I have a rotary addiction

iTrader: (18)
 
NCross's Avatar
 
Join Date: Jun 2006
Location: Columbia, Tennessee
Posts: 4,815
Received 23 Likes on 22 Posts
Maybe thats my problem. I have wonder spark problems... could be due to 12a dizzy on a 13b??
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stickmantijuana
Microtech
30
04-23-16 06:37 PM
Marty RE
New Member RX-7 Technical
0
08-13-15 11:19 AM



Quick Reply: GSL-SE with S5 block. Having trouble setting timing.



All times are GMT -5. The time now is 08:11 AM.