Dec 012009
 

it sounds like a spark knock at 2000 rpms and up does not knock when ideling ive put a crank and bearings and a timming chain set in it already

  3 Responses to “1989 nissan truck z24 4cyl”

  1. Spark knock is caused by low octane or bad timing. It is possible that you have the timing a tooth off since you say you just changed this.

  2. it was doing this befor i changed the timming chain & crank and bearings.

  3. Spark knock is caused by low octane or bad timing.

    You could try some octane boost in the gas tank….

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