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raycow · 08-21-2010, 03:15 AM

If the engine runs best when the timing mark is obviously off, it means the outer ring on the balancer could have slipped. The only thing holding the ring is a rubber to metal bond which can deteriorate over time.

Don't worry about timing the engine on the exhaust stroke. The timing mark will be on 0 at TDC on the exhaust stroke but the engine just plain won't run like that. You would be off by a full revolution and firing #6 instead of #1.

Ray

08-21-2010, 03:15 AM	#6
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: setting timing in 68 c-10 with 250 If the engine runs best when the timing mark is obviously off, it means the outer ring on the balancer could have slipped. The only thing holding the ring is a rubber to metal bond which can deteriorate over time. Don't worry about timing the engine on the exhaust stroke. The timing mark will be on 0 at TDC on the exhaust stroke but the engine just plain won't run like that. You would be off by a full revolution and firing #6 instead of #1. Ray Last edited by raycow; 08-21-2010 at 03:23 AM.