|
| I've got a very, very early 9380 CaseIH Steiger that has the 855 with STC around here as well(instead of the mechanical N14s all the rest of the 9370/80/90s use). When I ran the overhead on it years ago, I was told by Cummins to set it the same way you did(OBC-125 in. lbs.) for the reasons you mention. In regards to the old setting(5-6 in. lbs), you needed a special tool that we referred to as a "horseshoe". This tool would lock the injector to the tappet inside the injector for the STC system so that the tappet would not affect the overhead setting. Later on, they went to the OBC setting for greater accuracy.
In regards to the valve setting, they never said anything about deviating from the setting on the engine data tag. I thought Cummins used to list 2 different valve settings dependent on what the rocker lever housing(the piece that the rocker arms fasten to)the engine has-aluminum or cast iron. IIRC, aluminum rocker housing called for the 11/23 setting, while the cast iron housings called for 14/27 settings-but I could be wrong after all these years. | |
|
8970 855 cummins overhead set
