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Oil pressure at 145 psi

 
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henry.voris



Joined: 02 Mar 2007
Posts: 116
Location: Pueo Field, Kula, Maui

PostPosted: Sat Jan 17, 2015 2:20 pm    Post subject: Oil pressure at 145 psi Reply with quote

Cruze'n along with the trusty 912 ULS turning 4,800 RPM when I notice the oil pressure is pegged at 145 psi. The factory sez 73 psi is max. Smartly I execute a 180° turn and retrace the ten miles to the airport.

While taxiing back to the shadeport I goof with the throttle and see that the oil pressure rises and falls with the RPM, but by the time it gets to 4,000 RPM we're showing 100 psi. Inspection shows no leakage.

I'm hoping it's something cheap, easy and on top...

Any help troubleshooting this would be most appreciated... Thanks in advance.

Henry


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davidjoyce(at)doctors.org
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PostPosted: Sat Jan 17, 2015 2:55 pm    Post subject: Oil pressure at 145 psi Reply with quote

If one of the wires to your oil pressure sender breaks you get a full scale high reading, so it is almost certainly a wiring issue. David Joyce + 914, which had similar issue a few years back.

On 2015-01-17 22:20, henry.voris wrote: [quote]
Quote:
--> RotaxEngines-List message posted by: "henry.voris" <henry_voris(at)yahoo.com (henry_voris(at)yahoo.com)>

Cruze'n along with the trusty 912 ULS turning 4,800 RPM when I notice the oil pressure is pegged at 145 psi. The factory sez 73 psi is max. Smartly I execute a 180° turn and retrace the ten miles to the airport.

While taxiing back to the shadeport I goof with the throttle and see that the oil pressure rises and falls with the RPM, but by the time it gets to 4,000 RPM we're showing 100 psi. Inspection shows no leakage.

I'm hoping it's something cheap, easy and on top...

Any help troubleshooting this would be most appreciated... Thanks in advance.

Henry

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Henry
Firefly Five-Charlie-Bravo

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VIXEN



Joined: 23 Nov 2009
Posts: 35

PostPosted: Sat Jan 17, 2015 4:27 pm    Post subject: Oil pressure at 145 psi Reply with quote

When my 18 year old Westac Quad gauge goes wanky it is always the sender!!!!
Have fun

Don Hudgeon
On Sat, Jan 17, 2015 at 2:20 PM, henry.voris <henry_voris(at)yahoo.com (henry_voris(at)yahoo.com)> wrote:
[quote]--> RotaxEngines-List message posted by: "henry.voris" <henry_voris(at)yahoo.com (henry_voris(at)yahoo.com)>

Cruze'n along with the trusty 912 ULS turning 4,800 RPM when I notice the oil pressure is pegged at 145 psi. The factory sez 73 psi is max. Smartly I execute a 180° turn and retrace the ten miles to the airport.

While taxiing back to the shadeport I goof with the throttle and see that the oil pressure rises and falls with the RPM, but by the time it gets to 4,000 RPM we're showing 100 psi. Inspection shows no leakage.

I'm hoping it's something cheap, easy and on top...

Any help troubleshooting this would be most appreciated... Thanks in advance.

Henry

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Henry
Firefly Five-Charlie-Bravo

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PostPosted: Sat Jan 17, 2015 6:43 pm    Post subject: Oil pressure at 145 psi Reply with quote

Henry,

If your oil pressure sender is directly attached to the oil pump, it’s probably a dead or damaged sender. Vibration usually kills them over time.

Not recommending you do this, but I moved my sender from the engine block to the firewall and have a length of pressure hose from the block to the sender. So far, no problems.

Blue skies & tailwinds,
Bob Borger
Europa XS Tri, Rotax 914, Airmaster C/S Prop (90 hrs).
Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
3705 Lynchburg Dr.
Corinth, TX 76208-5331
Cel: 817-992-1117
rlborger(at)mac.com
On Jan 17, 2015, at 4:20 PM, henry.voris <henry_voris(at)yahoo.com> wrote:



Cruze'n along with the trusty 912 ULS turning 4,800 RPM when I notice the oil pressure is pegged at 145 psi. The factory sez 73 psi is max. Smartly I execute a 180° turn and retrace the ten miles to the airport.

While taxiing back to the shadeport I goof with the throttle and see that the oil pressure rises and falls with the RPM, but by the time it gets to 4,000 RPM we're showing 100 psi. Inspection shows no leakage.

I'm hoping it's something cheap, easy and on top...

Any help troubleshooting this would be most appreciated... Thanks in advance.

Henry

--------
Henry
Firefly Five-Charlie-Bravo


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