Master
SubscriberThe vacuum pump on our Defender 130 is only producing 7" HG vac and has no assistance when braking.
The workshop manual says 0.8 bar?? This seems odd as bar measures pressure not vacuum.
Does anyone know what a healthy vacuum pump should produce?
REMLR Registrant No. 436
LROCV Member No. 1703
1976 RRC Suffix D
1979 Series III GS FFR
1980 Series III GS FFR with a Perentie RFSV tub
1991 Discovery 1 3.5 V8 3 door
1993 Discovery 1 200Tdi 3 door
1993 Defender 110 200Tdi ute
AT REST
Mean sea level atmospheric pressure is 1 bar or 1000mbar, so a measured vacuum of 0.8 bar is an absolute pressure of 0.2 bar. So I'd expect 24 (0.8 of 30) in Hg to be quite achievable. A mate of mine just fitted a new s/h booster to his 300TDi RRC but it turned out the vacuum pump was stuffed. Another pump solved his problem.
Master
SubscriberThanks for your advice Bee utey,
Looks like it needs a new pump.
REMLR Registrant No. 436
LROCV Member No. 1703
1976 RRC Suffix D
1979 Series III GS FFR
1980 Series III GS FFR with a Perentie RFSV tub
1991 Discovery 1 3.5 V8 3 door
1993 Discovery 1 200Tdi 3 door
1993 Defender 110 200Tdi ute
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