I scored an Ingersoll-Rand G25 (with autostart capability). It looks to use a Mitsubishi S4Q series engine that uses what looks to be a Bosch type "A" inline pump (instead of the distributor type)
I've managed to get parts catalogs for the unit, but no real service information; from the drawings I can see that it uses gears in the timing case (no chain to stretch!), that it is a pushrod valve-train, and that it appears to use solid lifters. I'd presume that a dial gauge would be used to locate the lowest spot on the intake cam #1, and that a half-turn of the crankshaft is needed between cylinders (1-3-4-2), then go back and do the same with the exhaust. The adjusters are on the push-rod end of the rocker arms, so I'd bet that lash is measured under the valve end of the arm... Does anyone out there have a service manual for the S4Q series that they'd share? I'd like to confirm the adjustment procedures and to see actual numbers for the clearances (the one thing I don't have!) Obligatory Mercedes content–it looks like it will be a lot simpler to adjust the valves on this engine. Thanks much -- John W Reames [email protected] Home: +14106646986 Mobile: +14437915905 _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
