16-05-2023, 02:05 PM
(This post was last modified: 16-05-2023, 02:10 PM by Stuart Giles.)
[quote="Steve kay" pid='93827' dateline='1684218668']
No obvious problems with the pump, that is the pump with the mirror smooth cover. Relief ball seat not chipped. Plugs removed and access to galleries checked, no evidence of being blocked. So now what?
[/quote
As you have the motor more or less in bits, you could partially assemble it -oil pump in, sump on, oil in sump and then drive the cam with an electric drill and see what is happening WRT oil delivery (or not) at the jets. An engine I worked on a while ago had the oil jets drilled out, there was lots of oil being delivered by them, but no pressure at tickover and not much at running RPM once the oil was hot.
No obvious problems with the pump, that is the pump with the mirror smooth cover. Relief ball seat not chipped. Plugs removed and access to galleries checked, no evidence of being blocked. So now what?
[/quote
As you have the motor more or less in bits, you could partially assemble it -oil pump in, sump on, oil in sump and then drive the cam with an electric drill and see what is happening WRT oil delivery (or not) at the jets. An engine I worked on a while ago had the oil jets drilled out, there was lots of oil being delivered by them, but no pressure at tickover and not much at running RPM once the oil was hot.