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Vn 5L in patrol, hi volume or not
Posted: Wed Apr 06, 2005 9:48 pm
by extra niss
i am putting a 5L in my patrol i have standed HQ sump for it but i am worryed about it not getting enough oil on big angles. has anyone had any problems with oil pressure in there V8s
Posted: Wed Apr 06, 2005 10:41 pm
by Screwy
when i have some revs in my 5 litre the pressure is fine....
its only at idle that im only at about 5 pound oil pressure and when trying to idle up a hill crawling i have low pressure on the angles....
definatly would go a high volume pump, its one of the things on my to do list
Posted: Thu Apr 07, 2005 5:38 pm
by MARKx4
The oil pump that you have from the HQ should be fine. The HQ is a 308 and the VN us a 304. Even though the vn puts out more power in standard form is because of the fuel injection and head desgin. So you should be sweet with the HQ pump.
Posted: Sat Apr 09, 2005 4:28 pm
by extra niss
thanks guys the motors is getting fully rebuilt before it goes in so it will be getting the hi volume oil pump.
oil pump
Posted: Sat Apr 09, 2005 7:03 pm
by Scuber Steve
A high volume pump can empty the sump and fill the heads, due to poor oil return on holden v8, if they get a load of right foot! Which will cause bearings to fail.
Posted: Sun Apr 10, 2005 4:31 pm
by Bartso
how much for the rebuild mate
Posted: Mon Apr 11, 2005 9:14 pm
by extra niss
don't know what the rebuild is werth yet i am doing it my self all i have dune so far is pull the motor down.
i am too bissy organising the trip to tuff truck this weekend and i am going to get into it when i get back and get more money
Posted: Mon Apr 11, 2005 10:17 pm
by turbo gu
i've heard of people shimming the relief spring to get a bit more pressure but in your situation i would just put on a new standard pump. as previously mentioned a high volume pump just fills up the rocker area with oil that isn't needed there and emptys the sump. some engine builders put in restrictors to prevent this.
Posted: Tue Apr 12, 2005 8:22 am
by mkpatrol
turbo gu wrote:i've heard of people shimming the relief spring to get a bit more pressure .
This is a bad mod because it gives you more pressure not volume. It also blows the oil filter seal off on cold mornings. Go the pump.
If you worried bout oil pickup at angles you can also use a high volume sump, that way then you are at an angle & giving it a bootfull you wont runout of oil. It will also aid with cooling.