Frank, If your friend is tied up in a slip and putting his engine in gear at ½ throttle for 5 or more minutes, he better put some chafe protection on oversized dock lines along with some really robust bumpers, otherwise he may be calling am insurance agent rather than a diesel mechanic. I also wouldn’t want the adjacent slip that has to listen to that engine churning away each time he comes down to the boat.
At diesel class at Annapolis School of Seamanship, the instructor said it was more important to run the diesel for a longer period of time (like ½ hour or more), even at lower RPMs to let the engine get up to full operating temps than to run it for 5-10 minutes to get the boat out of the slip and the harbor and then shutting off the engine immediately when the sails go up. My boat is on a mooring, so when I go out to the boat, I’ll start up the engine while I’m prepping the boat for sailing, which also gives the batteries a bit of a booster charge before heading out. I have to wait for a draw bridge before I get to open water, so 30 minutes of powerboating isn’t a big inconvenience, more like a necessity for me. Chuck Gilchrest S/V Half Magic 1983 Landfall 35 Padanaram, MA From: CnC-List [mailto:[email protected]] On Behalf Of Franklin Schenk via CnC-List Sent: Monday, June 20, 2016 2:41 PM To: [email protected] Cc: Franklin Schenk <[email protected]> Subject: Re: Stus-List Warm up diesel engine I forgot to mention if it should be in gear. 850 to 900 is about the same as the normal idle speed on a car so that sounds about right. On Monday, June 20, 2016 10:42 AM, Joel Aronson via CnC-List <[email protected] <mailto:[email protected]> > wrote: The 3GM manual: 1) Warm up the engine for more than 5 minutes. Because lube oil does not reach all the moving parts as soon as the engine is started. Operate the engine at around 850-900 rpm for at least five minutes. On Mon, Jun 20, 2016 at 11:36 AM, Franklin Schenk via CnC-List <[email protected] <mailto:[email protected]> > wrote: A friend of mine insists that you cannot warm up a Yanmar engine at idle speed. When we are still in the slip he puts it in gear and runs at about half throttle. None of the other sailors appear to do this. Unfortunately many do not give the engine a chance to warm up at all. I am open to suggestions and the reason for what you are doing. Frank c/c 29 _______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated! -- Joel 301 541 8551 _______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
