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Old 06-11-2017, 10:46 PM   #1
Cummins9912v's Avatar

Name: Cummins9912v
Title: Diesel Enthusiast
Status: Not Here
Join Date: Feb 2012
Location: camden ohio
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Posts: 154
Exclamation Rocker arm trouble

Hey guys I'm drawing a blank with rocker arm troubles on my p24, put a new motor in and used a 12v block, with 12v bottom end besides cam and pistons, bought a new Hamilton 207-220, ran the truck for 20 min and broke an intake rocker. No big deal? Changed the rocker and ran for another 10 min and broke a different rocker. So I had a new set laying in the shop. Changed them and it ran for 3 pulls before it broke another intake rocker. So my question is has anyone had this trouble and found a solution?
'99 dodge 12 valve Cummins
northeast 13mm p7100 set at 650cc 36* timing
5x25 dual feed injectors
S468/hx60 compounds
47re full billet, FMVB
Arp head studs
full Port and polish
Hamilton beehive springs
220/240 cam
Extreme duty pushrods
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