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Post by minimatic on Apr 17, 2022 12:58:43 GMT
i got a 1968 morris mini matic
rebuilt the transmission and the oil pressure seems to be up and down
at netural its 0 and then goes up to 30-40 when driving
is this normal
how does the oil pressure supposed to act and when should it go up and down.
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Post by jockduck on Apr 18, 2022 11:14:13 GMT
Congrats I have a 68 minimatic too, sorry to hear about your oil pressure, My Leyland manual states that the oil pressure should be 40-60 psi at road speed, mine sits on 48 psi when fully warmed up and at 30 psi in neutral at idle, it does drop to 10 psi when R is selected. when I first put a gauge on the oil pressure was 30- 45 and a little erratic, I replaced the engine oil pressure relief valve and spring from my spare engine and things improved I added a couple of washers behind the spring and got the pressure up to the above figures, the original valve plunger had been messed with even had a hacksaw cut on it!
Jock
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Post by mra-minis on Apr 23, 2022 16:05:20 GMT
i got a 1968 morris mini matic rebuilt the transmission and the oil pressure seems to be up and down at netural its 0 and then goes up to 30-40 when driving is this normal how does the oil pressure supposed to act and when should it go up and down. I can be contacted on martin@kmprecisionengineering.com The best way is to add an oil pressure gauge to the transmission take of port on the filter head. |
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