ZZ4 Timing problems
Thread Starter
Racer
Joined: Sep 2005
Posts: 304
Likes: 1
From: Carson City Nevada
ZZ4 Timing problems
HI all, I am having trouble with timing on my new ZZ4 in my 87. I had to change the damper with the L98 one due to size. I also changed the timing cover with it. Was this a mistake? Was the ZZ4 damper(that I no longer have) and timing cover diferent?
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
So long as you have a L98 cover to go with the L98 balancer the indicated timing should be right.
Different balancer/ timing marks used across years, also has to be correct for balancer size also
What problems are you having?
Did you play with the timing chain?
Different balancer/ timing marks used across years, also has to be correct for balancer size also
What problems are you having?
Did you play with the timing chain?
Last edited by rodj; Sep 4, 2007 at 04:58 AM.
Thread Starter
Racer
Joined: Sep 2005
Posts: 304
Likes: 1
From: Carson City Nevada
No, I didnt mess with the timing chain. Unfortunatly, I no longer have the ZZ4 cover of balancer. The old balancer was larger and the timing cover was plastic. Anyone got any pics of one?
Burning Brakes
Joined: Aug 2001
Posts: 1,146
Likes: 9
From: Troy Ohio
Looked the same to me
I also transferred the balancer over but left the timing cover that came on the zz4 on the motor. When i compared them the timing mark looked like it was in the same position just a little farther away from the balancer due to its smaller diameter compared to the one that came on the new motor.
Thread Starter
Racer
Joined: Sep 2005
Posts: 304
Likes: 1
From: Carson City Nevada
I also transferred the balancer over but left the timing cover that came on the zz4 on the motor. When i compared them the timing mark looked like it was in the same position just a little farther away from the balancer due to its smaller diameter compared to the one that came on the new motor.
Pro
Joined: Dec 1999
Posts: 673
Likes: 0
From: Venetia,Pa,USA
I had to change my damper also , would not clear the crossmember. The timing is the same , the problem is that the pointer has to be relocated because it no longer points correctly. What I did was set the dist in and adjusted the timing until I had the engine running smooth. I did the timing adjustments on the dyno by increasing and decreasing until I got the max. HP. When I ever need to replace the water pump/pwr steering or anything behind the pulleys I'll set the engine to TDC and fab a pointer to point at "0" degrees ; then I'll be able to time with a light. It runs fine I don't look for work. If you have any questions you are weclome to call me at home . 724 941 3792
Thread Starter
Racer
Joined: Sep 2005
Posts: 304
Likes: 1
From: Carson City Nevada
You don't happen to know how many degrees and in wich direction do you? It seems I have to set mine at about 2 deg after TDC to get the ping to go away. It also seems I lose some HP when I do that.
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