5L no oil up top

[vombil]

If that was the case blocked ports on the crank would increase the pressure, lack of pressure is because the bearings and journals have to much clearance that means engine wear. I say the only way to know whats going on is a engine pull down.

I put HPR30 in it and it knocked immediately and had zero pressure. thicker oil should have brought pressure up if bearings was the issue right?

 

[Trevor loves holden.]

Maybe the pressure valve is fully open and not working if the pump is working.

 

[vombil]

I tried a thicker oil and the motor started knocking immediately. I would have thought a thicker oil would bring pressure up if it was worn bearings. there was no pressure at all obviously

 

[vombil]

Maybe the pressure valve is fully open and not working if the pump is working.

yeh its a new pump but will try another tomorrow. I reckon I'll end up pulling sump though. Should i try overfill sump so that in case its sucking air at pickup to block gasket or tube is cracked etc then it will suck oil rather than air?

 

[Trevor loves holden.]

I put HPR30 in it and it knocked immediately and had zero pressure. thicker oil should have brought pressure up if bearings was the issue right?

In theory yes, but running it with thicker oil also starves the engine of lubrication as its reducers the flow rate, you only want to use it in worn out engines.

 

[Trevor loves holden.]

yeh its a new pump but will try another tomorrow. I reckon I'll end up pulling sump though. Should i try overfill sump so that in case its sucking air at pickup to block gasket or tube is cracked etc then it will suck oil rather than air?

Overfilling the sump will only damage the engine, your choice I'm not going to say do it, might be OK for a sort time. good luck.

 

[vombil]

Overfilling the sump will only damage the engine, your choice I'm not going to say do it, might be OK for a sort time. good luck.

yeh same mechanic had one in his shop last week. i think it was a 4cyl with 11 litres or more. absolutely cooked it.

I tried HPR30 which is recommended by penrite for that engine... and it knocked immediately. Pump did manage to drag it up to the new oil filter btw. not sure of that's worth mentioning

 

[Trevor loves holden.]

yeh its a new pump but will try another tomorrow. I reckon I'll end up pulling sump though. Should i try overfill sump so that in case its sucking air at pickup to block gasket or tube is cracked etc then it will suck oil rather than air?

Have a look see at this.

 

[Trevor loves holden.]

 

[vombil]

hey guys i found the problem! the pin has dropped out of cam gear drive shaft. so at idle its grabbing just enough to maintain some pressure and then when you rev it slips and so pressure falls. whats involved in fixing this? im thinking timing cover off but hopefully not chain and cam out etc
thanks