THE BOGGER
Member
1997 Ultra Classic with EVO 80 CI, Just turned 30,000 miles
Seems that when the engine is hot there is a strange noise (rattle ) coming from the top of engine rocker box. Now I run synthetic Oil Royal Purple 20W-50W. When the oil is hot this seems to be the problem, Symptomatic of thinning oil viscosity, but once up to 3,000 rpm the noise is gone. It seems to start at 2500-2800 rpm.
Anyone having this problem or having heard of it please chime in. We would love to solve the riddle of the rattle.
Thank You
The Bogger
Seems that when the engine is hot there is a strange noise (rattle ) coming from the top of engine rocker box. Now I run synthetic Oil Royal Purple 20W-50W. When the oil is hot this seems to be the problem, Symptomatic of thinning oil viscosity, but once up to 3,000 rpm the noise is gone. It seems to start at 2500-2800 rpm.
Anyone having this problem or having heard of it please chime in. We would love to solve the riddle of the rattle.
Thank You
The Bogger