I just installed a j-spec motor and I would like to know the proper procedure to do a timing to it
from a little drive around the block if feels like the timing is off and it has a little backfire

87 T2

 

See if this thread helps.


https://www.rx7club.com/2nd-generation-specific-1986-1992-17/timing-cas-adjustment-330932/

 

thanks for the response but the link doesnt help me much I am not following what is being said

from what I know is:
-have the car ideling at operating temperature and at about 1000rpm or less
-connect timing light to L1 and check marks
-connect timing light to T1 and check the other mark
-they should both align to the notch on the front cover
-if marks are off unscew the one bolt of the CAS and move it slightly backwards or frontwards depending where it needs to go!

please correct me if I am wrong or if anything else needs to be done

 

Sounds good, but you probably need the idle about 850 or less, not 1000...

 

how much of a difference does it make where the idle is??

and I have heard people say to take off the 2 little phillips screws and looking at the gear where it is aligned?
whats that all about?
is that true

 

dude i was in your same boat ... until i searched the forum and researched how to do it properly ... the FSM is a good source , as is that one link, and just searching is still the best thing to do ... seriously ... if i can do it .... i KNOW anyone else can

 

that's the method i used to get it pretty close... then used a timing light to perfect it. Easiest way to not let the gear spin.

 

TurboIINV,

1. Remove the 10mm nut on the CAS.
2. Pull out the CAS. (disconect the harness)
3. Remove the two screws on the black cover of the CAS.
4. Set the eccentric pully (I use a ratchet set on the alternator belt and go clockwise), the
first mark (yellow) to the pointer on the front cover of the engine.
5. Look and align the mark on the CAS housing and the gear.
6. With # 5 done mark the gear tooth inside the CAS with the pick up sensor (I used nail
polish). This will help you when stabing the CAS back in to keep and know that the mark
on the housing and gear are still align.
7. Stab the CAS back (keeping the mark you make on #6 align). I will move about a tooth
when you stab it all the way in but that is normal.
8. Putback the black cover with the screws. Put the 10mm nut back on but do not tighten
yet. (conect the harness)
9. Start the car. Use a timing light and conectit to the L1 (closer to the spark plug works
better). Now fine tune that first mark (yellow) to the pointer on the engine cover by
moving the CAS.
10. When done tighten the 10mm nut.

I hope this helps