I have a 1988 2nd Gen RX7 without turbo that I got off E-bay as a non runner
It had a misfire and I intended to take the engine out to either rebuild it or replace it. When I started to remove it, it was evident that the exhaust manifold had blown out and burnt the secondary injectors and fuel lines.
I replaced the damaged injectors, fuel lines and electrics and I have tried to set up the ignition timing. I have an American Haynes manual that states the "yellow mark on the eccentric shaft pulley is for the leading plug and the red mark is for the trailing plug" Is this right? I have never had an RX7 before but have always been interested in the engine and the idea behind it so I am learning fast. Does anybody have a better way of setting up the timing? I think I have all the leads in the right place, but the engine seems to hunt at low revs and I am reluctent to take it past 3500rpm untill I know it is right.
Thanks Nigeboi.
Hi,
This is how you set the timing on the 13b with CAS.
- Line the first groove on the pulley with the pin on the front cover(clockwise)
-Now remove the crank angle sensor from the front cover. This is the circular housing to the right of the pulley as you look at the engine.
-Remove the black cover which is secured by 2 screws. Look at the bottom of the unit where the gear is. Now line up the dimple on the gear with the ridge on the shaft.
-Keeping it in this position, look into the CAS casing where you will see 2 sets of gears. The bigger having 24 teeth, and the smaller having 2 teeth.
-Mark the tooth on the bigger gear which lines up with the contact pickup.
This is to ensure that when you have returned the CAS into it\'s housing, you are able to line the marked tooth up with the pickup as it will move when it is placed back into the housing.
-Ensure the tooth is lined up, and tighten the nut.
I hope this helps.
Cheers,
John
crickey - that sounds complex !!
Thanks John.
I have got that far, but when i time the engine up is the first pointer for the leading spark plug and the second pointer for the trailing plug?
If you are finding it hard to understand, let me know and will try make it simpler.
John
It is, but you don\'t need to worry about it to be honest.
John