[Amel Yacht Owners] Volvo D3-110 low oil pressure warning
Bill & Judy Rouse <yahoogroups@...>
My guess in order of probability: 1.) The oil pressure sender needs cleaning and/or replacing, or has a loose or worn wire. 2.) There is a problem with the computer 3.) The oil pump needs to be replaced 4.) Main bearings worn I am betting it is number 1. BTW, I don't believe that this applies to you, but there is a known issue with a Yanmar that causes an indication of low pressure...there is a "T" that the oil pressure sender screws into. This "T" is known to get clogged and cause low pressure. CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970 On Jul 1, 2017 03:33, "mshirloo@... [amelyachtowners]" <amelyachtowners@...> wrote:
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Mohammad Shirloo
Thanks bill. We are approaching Chania in Crete. We have been motor sailing for the past almost 4 hours and no issues at cruising RPMS. (1350 -1500). I have located the oil pressure sensor but cannot get to it with the engine running. Once we dock I can get into it more. I agree with your assessment and the likely issue being item #1. In my search online it appears that other Volvo Penta owners have experienced this and some have dealt with it by lowering the RPMs slowly. We'll try this once close in to see if this makes any difference. Do you know if there is a governor/limiter that adjust to the oil pressure to ensure proper flow at all RPMs? Respectfully; Mohammad Shirloo 323-633-2222 Cell 310-454-3148 Fax On Jul 1, 2017, at 3:41 PM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:
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Bill & Judy Rouse <yahoogroups@...>
I do not believe the D3-110 has any adjustment for oil pressure. It does have a "safety valve," but I am not sure of that valve's function. I would eliminate #1 before investigating others. CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970 On Sat, Jul 1, 2017 at 8:07 AM, 'Mohammad Shirloo' mshirloo@... [amelyachtowners] <amelyachtowners@...> wrote:
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James Alton
Bill, As far as I know, all engines with pressurized oil systems also have a pressure relief valve which bypasses the excess oil at a preset pressure. I can tell you that if the valve gets stuck closed that it can really make a mess when the oil filter blows off. (Grin) In the case of being unsure of an electronic oil pressure reading, I like to connect a mechanical gauge to help eliminate the guessing. Best, James SV Sueno, Maramu #220 Sent from Samsung Mobile -------- Original message --------
From: "'Bill & Judy Rouse' yahoogroups@... [amelyachtowners]" <amelyachtowners@...> Date: 07-01-2017 1:54 PM (GMT-04:00) To: amelyachtowners@... Subject: Re: [Amel Yacht Owners] Volvo D3-110 low oil pressure warning I do not believe the D3-110 has any adjustment for oil pressure. It does have a "safety valve," but I am not sure of that valve's function.
I would eliminate #1 before investigating others. CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970 On Sat, Jul 1, 2017 at 8:07 AM, 'Mohammad Shirloo' mshirloo@... [amelyachtowners] <amelyachtowners@...> wrote:
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greatketch@...
And if that relief valve fails to close all the way due to a bit of debris or a weak spring it can lead to low oil pressure, especially at low rpm.
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The oil pumps on most all engines will produce way more flow and pressure at higher RPM then the engine needs. When it rises above specification, the relief valve opens and keeps it steady. That is why you typically see oil pressure build as the rpm rises, but only to a point. Once the valve begins to open, it stays pretty constant after that as the RPM rises. On my TMD22 at idle oil pressure is about 20psi. By the time you get to 1500rpm it reaches 55psi and then rises no higher all the way to full speed. That is the result of the oil pressure relief valve opening. I do agree with Bill R. that checking the sender is the place to start. Making sure the problem is real before tearing into the guts of the engine is a very good idea. Bill Kinney SM160, Harmonie Edgartown, Martha's Vineyard. ---In amelyachtowners@..., <lokiyawl2@...> wrote : Bill, As far as I know, all engines with pressurized oil systems also have a pressure relief valve which bypasses the excess oil at a preset pressure. I can tell you that if the valve gets stuck closed that it can really make a mess when the oil filter blows off. (Grin) In the case of being unsure of an electronic oil pressure reading, I like to connect a mechanical gauge to help eliminate the guessing. Best, James SV Sueno, Maramu #220 Sent from Samsung Mobile -------- Original message --------
From: "'Bill & Judy Rouse' yahoogroups@... [amelyachtowners]" <amelyachtowners@...> Date: 07-01-2017 1:54 PM (GMT-04:00) To: amelyachtowners@... Subject: Re: [Amel Yacht Owners] Volvo D3-110 low oil pressure warning I do not believe the D3-110 has any adjustment for oil pressure. It does have a "safety valve," but I am not sure of that valve's function. I would eliminate #1 before investigating others. CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970 |
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Mohammad Shirloo
Thanks every one for the replies. After about 5 hours of motor sailing we lowered the RPM slowly and did not get a low pressure warning. It's been over 100 degrees and zero wind in chania so still have not gone into the engine room to check the sensor. Respectfully; Mohammad Shirloo 323-633-2222 Cell 310-454-3148 Fax On Jul 1, 2017, at 8:17 PM, Lokiyawl2 lokiyawl2@... [amelyachtowners] <amelyachtowners@...> wrote:
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