lower balance shaft off 1 tooth
06-20-2018, 10:02 PM
#1
lower balance shaft off 1 tooth
i was getting ready to do my water pump and front seals and noticed my lower bs is off by one tooth. Just wondering, has anyone had first hand experience of a detrimental vibration from balance shafts being off one tooth? I have a slight vibration around 3-4k not bad, wondering if this is the cause.
06-21-2018, 12:29 PM
#2
Rainman
Rennlist Member
Rennlist Member
typically the B-shafts can be off from eachother by 1/2 tooth or so due to belt tension/stretch...
maybe spin the engine around again and double-check the TDC cam mark - remember the b-shafts turn 4x as fast as the camshaft, so a minor misalignment on the TDC mark is magnified on the b-shaft gears.
maybe spin the engine around again and double-check the TDC cam mark - remember the b-shafts turn 4x as fast as the camshaft, so a minor misalignment on the TDC mark is magnified on the b-shaft gears.