Hi everyone, just signed up to this very resourceful forum to share some infos regarding vacuum pump.
I have a korean 4WD (Ssangyong Musso) with a MB licensed copy of the 602 as the power unit. (Can't afford the original stuff yet
, please don't
)
Quote:
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What's a 7.20607.24 have inside? The MB number appears to be 000 230 31 63
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It has the new bearing inside, part no. should be 000 230 31 65.
Taking the rear cover of the pump off reveals only the back of the piston in the pump.
Taking the pump off the timing case is relatively easy, I removed the tensioner and guide pulley to get some room.
Unfortunately my vacuum pump failed (new bearing style, original Pierburg pump) due to a worn roller/timing gear surface, breaking the pump shaft at 195 000km. (can post some nasty pic's on request, from the pump that is
)
Has that ever happend to anyone on a (orig.) 60* Merc. engine?
I heard that this pump can fail too because the screw holding the piston to the roller shaft gets loose, causing too much stress to the bolt, which than breaks.
MB changed the whole design to a rotary pump in later models.
I'm in the middle of replacing the pump, timing gear, chain and guides, tensioner and a few other bits.
Kind greetings from Australia,
Kay