loud valvetrain with woods 9fg

[1FSTRK]

Nothing to "straighten out" Ericy.

Jason,
You may have a lifter issue.
AV&V .650" beehives.

[itsafatboy]

so does the sound seems to come from front exhaust valve area , its the closing ramp speed on the exhaust closing, like the Tw8g , kind of a crap shoot , sometimes its just how the valve hits the seat , but ya its tough to quite those down, I tried it all ,  rocker shims, rocker lockers , different lifters a bunch , different lifter settings, oversized gear drive, smaller pushrods , so on and so on, changed cams and bam quite as a mouse,  I actually run the 9BG cams and they are pretty quite , but they also don't have the same profile, I also run woods lifters and his 160 springs set a little higher on seat but not much,  so I run redline 20/50 it seems to keep its viscosity better than most, I did pin the rocker arms , just saying they are woods cams and that's how it is , but the W9F with a +4 advance in my 116 was a beast , the 9BG work well also and they are more quite in mine ,       

[jpag]

thanks

[dynabagger]

I put up with it for years. Using 9B's. The last time I had the rocker cover open I put rocker lockers in. They do make a noticeable difference. I still use ear plugs though.

[jpag]

 

[FLDavetrain]

My 9f with rollers and .140 preload are real quiet. No rocker lockers.

[Armin]

Did you check your gear lash? If there is too much lash between the inner, the outer gears or with both you have a terrible noise generator, especially when using high lift cams with rather steep lobes like Bob Wood's cams. Remedial action would be oversize gears.

Armin.