JB_97ws6TA

iTrader: (6)

I recently swapped from roller tip rockers to Comp Ultra Pro Mag full rollers and I seem to get quite a bit of noise up top. I initially thought it could be my lifters because of the spring pressures I am running but after talking to some people I am not so sure the lifters are causing the noise. It is not loud like clacking but it is definately there and I guess my question is exactly how much noise is to be expected from running roller rockers?

RamAir95TA

iTrader: (2)

Can you post a video of the noise? If it sounds sewing machine-esque, it's completely normal, as long as your valve lash is adjusted properly.

JB_97ws6TA

iTrader: (6)

I will try and get a couple of vids on my camera, I don't know how well the mic will be able to pick it up becasue it is just a camera I don't own a camcorder but I'll give it a shot.

JB_97ws6TA

iTrader: (6)

http://s549.photobucket.com/albums/i...t=P7150021.mp4

lt1-xjs

Sounds normal to me, just like the old Promags.

Badazz 97 TA

iTrader: (18)

listening to the video, it sounds normal. Sounds like my rockers

Low N Slow

iTrader: (4)

My Pro Mags make a little noise, but not nearly as loud as yours. It's hard to tell not being there in person, maybe the camera exaggerates the sound.

JB_97ws6TA

iTrader: (6)

the camera does seem to exaggerate the noise a little bit but not a whole lot, that is pretty much how it sounds. I have readjusted valve lash 3 times now and the latest of which I went to a full turn past zero lash to try and get some quiter operation but the noise remains which leads me to beilieve that it has nothing to do with lifters or preload but they are awfully noisy! If it is in fact the rockers (which I don't know what else it could be) is there a quieter full roller out there or do they all make some noise?

flyinZ

iTrader: (15)

My Pro mags are louder than my Crane Gold rockers.

Are you running adj. guideplates?

JB_97ws6TA

iTrader: (6)

no I am running the guideplates that came with my heads but they seem to be aligned well but I never really investigated the contact other than for pushrod length.

ohio96ss

Sounds like they need adjusting to me.How did you set them? I have pro mags and they sound just about like stock.I lashed mine with car at idle hot.

JB_97ws6TA

iTrader: (6)

I use the exhaust open, intake close method one cylinder at a time. I take up the slack in the pushrod and set my preload.

moderate Z28

They are pretty noisy. Louder than mine.