patbob and qwerty,

Thanks I learned something here , as an engineer I would have designed it the other way around , interesting to realize that the mercedes engineer were more interested in pressure of the pump then the pressure at the bearings????

Thanks again

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85 MB 300TD with om616 4 spd
83 MB 300TD
83 MB 240D scrapped
82 MB 240D scrapped
97 Ford E350 diesel 4x4, WVO
94 Ford E350 4x4 diesel blown head..parts car
85 cherokee diesel 2.1, 300.000, WVO
85 cherokee diesel 2.1
85 lebaron convertible, to be electric
85 lada niva 4x4 with 1.9 peugeot diesel,
72 citroen DS 5spd, LPG
77 Jaguar XJS, LPG
73 corvette 350 auto
88 MB Gelande 240 GD military
98 Ford E350 mini bus to be new 4x4 camper