Well, I just did a big motor build on my truck and I am having issues. Low/No oil pressure on the low side at idle and Low psi while driving. (I am talking about LPO not HPO)
Truck runs and drives, just takes a long time to start (I am assuming its because it takes that long to get oil to the HPOP)
Checked with a snap on pressure gauge through the oil cooler housing sensor
Idle - 0 PSI
1000 rpms - 7psi
2000 rpms - 15-20 psi
3000 rpms - 20-25 psi
Will not go above 25psi
I have checked all the easy normal stuff...
HPOP check ball valve is good
Complete new front cover with oil pump
Replaced oil galley plugs (2 front, 3 in back)
All 8 piston squirters were installed with loctite
I opened up the oil filter housing and checked the filter drain back valve and its seems to be good, I swapped it with a known good one just in case. While cranking over the motor it fills up the oil filter housing really quick... no issues supplying volume, just no PSI.
Anybody have any ideas before I pull open this brand new motor and start tearing into it :doh:
Motor build includes:
All new main/rod bearing STD size
Polished crank (not reground)
RCD billet stage 2 cam with new STD bearings
.040 mahle pistons
upgraded lifters
billet push rods
oring heads
etc...
etc...
Truck runs and drives, just takes a long time to start (I am assuming its because it takes that long to get oil to the HPOP)
Checked with a snap on pressure gauge through the oil cooler housing sensor
Idle - 0 PSI
1000 rpms - 7psi
2000 rpms - 15-20 psi
3000 rpms - 20-25 psi
Will not go above 25psi
I have checked all the easy normal stuff...
HPOP check ball valve is good
Complete new front cover with oil pump
Replaced oil galley plugs (2 front, 3 in back)
All 8 piston squirters were installed with loctite
I opened up the oil filter housing and checked the filter drain back valve and its seems to be good, I swapped it with a known good one just in case. While cranking over the motor it fills up the oil filter housing really quick... no issues supplying volume, just no PSI.
Anybody have any ideas before I pull open this brand new motor and start tearing into it :doh:
Motor build includes:
All new main/rod bearing STD size
Polished crank (not reground)
RCD billet stage 2 cam with new STD bearings
.040 mahle pistons
upgraded lifters
billet push rods
oring heads
etc...
etc...