*Valve adjustment

11-01-2005, 08:34 PM

Tech articles are in the process of being restored, please bear with us during this process

Cummins Forum Staff

Last edited by MR4WLR : 03-23-2007 at 04:49 PM.

dieselgearhead · 11-01-2005, 08:39 PM

What are some of the common signs of mis-adjusted rockers? Also how often SHOULD this be checked?

__________________
05' Crew Cab dually 4X4 cummins w/ 6 spd.
4.11's w/limited slip
EDGE JUICE W/ ATTITUDE, AFE TORQUE TUBE, TURBO SILENCER RING REMOVED, FIA WINTERFRONT/BUGSCREEN COMBO, BULLET STEP BARS, DEEZEE 5TH WHEEL ALUM. TOOL BOX, VENTVISOR WINDOW VENTS, AERO-TURBINE 4040L MUFFLER
05' Jayco Eagle 305BHS 5er
Son's truck 84 Chevy S10 w/ 355 V8 & TH350 trans

11-03-2005, 07:24 PM

The 24 valvers require adjustment at 100k, If I remember right the 12 valvers need attention every 30K, You can hear the rockers rattlin when adjustment is needed, you dont want to set the valves to tight, set them to spec and if they are so tight that the valves wont completly close you will burn the valves and ruin them. has some excellent info on his website about this. Check it out Here And a big thank you to .

Cheers, Kevin

11-01-2005, 08:34 PM	#1 (permalink)
Guest Posts: n/a	Valve adjustment Tech articles are in the process of being restored, please bear with us during this process Cummins Forum Staff Last edited by MR4WLR : 03-23-2007 at 04:49 PM.*

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11-01-2005, 08:39 PM	#2 (permalink)
dieselgearhead Diesel Freak Join Date: Sep 2005 Location: southeast nebraska Posts: 608 dieselgearhead's Truck Pics	What are some of the common signs of mis-adjusted rockers? Also how often SHOULD this be checked? __________________ 05' Crew Cab dually 4X4 cummins w/ 6 spd. 4.11's w/limited slip EDGE JUICE W/ ATTITUDE, AFE TORQUE TUBE, TURBO SILENCER RING REMOVED, FIA WINTERFRONT/BUGSCREEN COMBO, BULLET STEP BARS, DEEZEE 5TH WHEEL ALUM. TOOL BOX, VENTVISOR WINDOW VENTS, AERO-TURBINE 4040L MUFFLER 05' Jayco Eagle 305BHS 5er Son's truck 84 Chevy S10 w/ 355 V8 & TH350 trans

11-03-2005, 07:24 PM	#3 (permalink)
Guest Posts: n/a	The 24 valvers require adjustment at 100k, If I remember right the 12 valvers need attention every 30K, You can hear the rockers rattlin when adjustment is needed, you dont want to set the valves to tight, set them to spec and if they are so tight that the valves wont completly close you will burn the valves and ruin them. has some excellent info on his website about this. Check it out Here And a big thank you to . Cheers, Kevin