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Three bearing crank....strange middle bearing issue

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Three bearing crank....strange middle bearing issue
Graham Barker Offline
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Joined: Feb 2021 Posts: 292 Threads: 31
Reputation: 3
Location: New Zealand
Car type: Austin 7 Ruby 1938
#11
13-04-2023, 10:58 AM
(12-04-2023, 03:29 PM)Ruairidh Dunford Wrote: Three bearing engines have smaller oil jets so as to raise the pressure to feed the centre main and centre cam bush appropriately.

They normally run at about 9psi warm.

Oil pressure on my 3 bearing 1937 engine drops to about 2 psi at idle when hot and about 9 psi at 35 mph when hot. Are you suggesting that I have a problem ?
Graham Barker
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RE: Three bearing crank....strange middle bearing issue - by Graham Barker - 13-04-2023, 10:58 AM

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