Bob/Bradenton
Well-known member
- Joined
- Sep 17, 2019
- Messages
- 101
- Fluid Motion Model
- C-24 C
- Hull Identification Number
- FRB02830G001
- Non-Fluid Motion Model
- Ranger 21 "Martini" Launch
- Vessel Name
- Buttercup
We have a 2000 Ranger "Martini" open launch, same hull as the original 21 but no Pilot House. Pictures on T-N's page six.
The engine is a Yanmar 2 cylinder/20 HP 2GM20F and I was wondering about the normal operating oil pressure. The boat/engine runs great but after warming up, the oil pressure at idle is about 40-50 PSI and then at 2500 RPM it climbs to 80 PSI which max's out the gauge.
I changed the oil (it was still somewhat clear not black) and the oil filter, same reading.
I changed out the oil pressure sensor and gauge, same reading.
This is something that I never noticed before but I never really studied the gauge as long as the needle was above half way.
I am assuming that the relief valve at the sump pickup is working fine and not stuck since the pressure does vary but that 80 PSI seems a bit high.
Thoughts and Comments...Bob/Bradenton
2000 Ranger "Martini" 21' open launch "Buttercup"
1999 Atlas Acadia 25 "Petunia"
The engine is a Yanmar 2 cylinder/20 HP 2GM20F and I was wondering about the normal operating oil pressure. The boat/engine runs great but after warming up, the oil pressure at idle is about 40-50 PSI and then at 2500 RPM it climbs to 80 PSI which max's out the gauge.
I changed the oil (it was still somewhat clear not black) and the oil filter, same reading.
I changed out the oil pressure sensor and gauge, same reading.
This is something that I never noticed before but I never really studied the gauge as long as the needle was above half way.
I am assuming that the relief valve at the sump pickup is working fine and not stuck since the pressure does vary but that 80 PSI seems a bit high.
Thoughts and Comments...Bob/Bradenton
2000 Ranger "Martini" 21' open launch "Buttercup"
1999 Atlas Acadia 25 "Petunia"