OK. So the service manual says to connect the oil pressure gauge to the pilot lamp unit for primary pressure and lubricating oil pipe connector for secondary pressure.
Where is the pilot lamp unit? Mike From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of svpegasu...@gmail.com via CnC-List Sent: Monday, August 10, 2015 2:48 PM To: cnc-list@cnc-list.com Cc: svpegasu...@gmail.com Subject: Re: Stus-List 3GM30F Oil Pressure warning Mike, summit racing is a great place to get gauges. Prices are good and delivery is fast. The connection on the engine I believe is std 1/8th pipe thread. At least that was true on my 3qm30. The list is on the right track for your problem. Good luck. Doug Mountjoy svPegasus LF38 just west of Ballard, WA. ------ Original message------ From: Hoyt, Mike via CnC-List Date: Mon, Aug 10, 2015 10:10 To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>; Cc: Hoyt, Mike; Subject:Re: Stus-List 3GM30F Oil Pressure warning So likely the best place to start is to change the oil and filter first and then check oil pressure. On phone to yanmar dealer to find out where to get a manual pressure guage and where I attach it to engine to test … Engine was not putting off excessive heat that I could notice. Did not get a chance to check coolant level but can top that up also. I believe that is a different light on the panel though. We have the B type panel and Oil Pressure lamp is second from right while water temp warning lamp is third from right. The water temp lamp was not illuminated From: CnC-List [mailto:cnc-list-boun...@cnc-list.com<mailto::cnc-list-boun...@cnc-list.com>]On Behalf Of S Thomas via CnC-List Sent: Monday, August 10, 2015 2:01 PM To: cnc-list@cnc-list.com<mailto:%20cnc-l...@cnc-list.com> Cc: S Thomas Subject: Re: Stus-List 3GM30F Oil Pressure warning Also not expensive to get a mechanical oil pressure gauge and hook it up, even if you only want to do it temporarily. Actually just about any mechanical pressure gauge will work for test purposes, including air pressure gauges, just get one with an appropriate pressure range. Steve Thomas C&C27 MKIII Port Stanley, ON ----- Original Message ----- From:Martin DeYoung via CnC-List<mailto:cnc-list@cnc-list.com> To:cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc:Martin DeYoung<mailto:mdeyo...@deyoungmfg.com> Sent: Monday, August 10, 2015 12:24 Subject: Re: Stus-List 3GM30F Oil Pressure warning Was there any noise from the engine that sounded like it was short of lube oil pressure? It is an easy and low cost test to buy a new oil pressure sending unit. Install it and test again with the engine at normal operating temp. If you still get the warning it is likely the lube oil pump. Martin Calypso 1971 C&C 43 Seattle ________________________________ From: CnC-List [cnc-list-boun...@cnc-list.com<mailto:[cnc-list-boun...@cnc-list.com>] on behalf of Hoyt, Mike via CnC-List [cnc-list@cnc-list.com<mailto:[cnc-list@cnc-list.com>] Sent: Monday, August 10, 2015 9:17 AM To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Hoyt, Mike Subject: Stus-List 3GM30F Oil Pressure warning Oil changed in May. Used 15W 40 Oil level checked July 22 300 mile delivery to Cape Breton (Dundee then Baddeck) July 23 – Aug 2 Yesterday after running engine at 2800 RPM for approx. 5.5 hrs a “clicking sound” was heard in cockpit. Thought at first was from Ram mic but was still there once disconnected. Determined was coming from alarm speaker on Yanmar panel. Tapped panel and then Oil pressure light illuminated and alarm sounded. Shut down engine and sailed to dock (without crashing) At dock started engine and at idle no alarm or light. Revved up to 3000 RPM and the light started flickering and a sputtering sound from the speaker (the clicking sound we heard earlier) which was followed by full illumination of Oil pressure light and full alarm siren. Stoped engine and waited. A few minutes later retarted engine and had no alarm at idle, followed by sputtering and then full alarm at high rpms. Reduced RPMs to idle and alarm stopped and light turned off. Any thoughts? Boat is currently 3.5 hrs away by car so any parts will have to be taken with me in advance ________________________________ _______________________________________________ Email address: CnC-List@cnc-list.com<mailto:CnC-List@cnc-list.com> To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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