Page 5 - Along the Way December 2020
P. 5
tinely checking for pushrod
straightness should be performed
as part and parcel of any engine
inspection during teardowns
and/or between-race checks.
While the pushrod may deflect
during operation, a static runout
check will help. If you find more
than 0.002 – 0.003” runout at
the center during a static check,
chances are the pushrod has
been deflecting more than this
during loaded operation. Some
may debate the runout limit, but
If a static check reveals more
than 0.003” runout, it should be
replaced. Some makers provide
straightening service, but
replacement is recommended.
www.engineprofessional.com 75
straightness should be performed
as part and parcel of any engine
inspection during teardowns
and/or between-race checks.
While the pushrod may deflect
during operation, a static runout
check will help. If you find more
than 0.002 – 0.003” runout at
the center during a static check,
chances are the pushrod has
been deflecting more than this
during loaded operation. Some
may debate the runout limit, but
If a static check reveals more
than 0.003” runout, it should be
replaced. Some makers provide
straightening service, but
replacement is recommended.
www.engineprofessional.com 75
