Winterizing Yanmars

[jspiezio]

I may have to winterize the Yanmars on the 31 my self this year. Any issuues I should be aware of prior to diving in?

[Bruce]

Nothing you wouldn't do to any other engine to prepare for winter.

[jspiezio]

Thanks Bruce, I appreciate it.

[Goober]

I hope this helps i agree with Bruce my 31 fbc has yanmars with block heaters 120 volt very inexpensive to buy or to install invection heat will circulate water thru entire system when cranking in cool or cold weather no preheat is required quote BR Goober

[jspiezio]

I hope this helps i agree with Bruce my 31 fbc has yanmars with block heaters 120 volt very inexpensive to buy or to install invection heat will circulate water thru entire system when cranking in cool or cold weather no preheat is required quote BR Goober

Great idea, these should be an install on the boat.

[Navatech]

As an added advantage, preheated engines suffer MUCH less thermal forces at startup... Back when I was in the service we had to preheat the 4,000 HP MTU's for a few hours before starting them... Yes, they could be started "cold" but it was considered an "emergency" procedure...