Yep M pump, nothing special, if anything its slower because I haven't messed with it at all. Had a problem with the MW on the droner engine and I had the M pump on the bench, so it got put on ahead of schedule. I think the engine is out of an 81 or 82 SD. It had the tach pick up on the harmonic balancer (now on the flywheel). The guy at the dismantler didn't know anything about the engine of where it came from. lucky for me it check out with good compression, so it was a keeper!

My engine bay is a collection of random Mercedes parts. the PS pump came with my last engine, which was an 81.

I've got this persona amongst my friends for hating plastic.... its only half a joke, I break plastic clips, molding, ect all the time. So whenever I can find a replacement part that is metal I'll snag it. I have a primer pump that is metal and the plunger looks like a bottle cap. Its awesome! but the pump base is for the MW pump, so I need to install it on the M pump base.

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