I can't remember where I found all of my manuals but my parts manual is from boatdiesels.com. They wouldn't be exactly what you are looking for but here's the manuals for a 3HM and 3GM series engines. As I understand it the evolution of yanmar engines goes as follows. QM -> HM -> GM -> JH (I think) so these manuals may prove more useful than expected.
https://drive.google.com/folderview?id=0B8pEh5lnvP1yTkdrWTZVX3hRM28 Has the engine already been recently started? If not, you risk inadvertently causing damage by having a "dry start". At least pull the decompression levers until the low oil pressure alarm clears. This will ensure oil fills the filter, gets to the bearings, and gets to the cylinder walls. Was the boat on the hard for 5 years or in the water? Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Jan 28, 2017 1:35 PM, "Bruce Whitmore via CnC-List" < cnc-list@cnc-list.com> wrote: > Hello all, > > > The engine in our 37/40+ is a Yanmar 3JH2E. Anyone know where I can > download a full repair manual? Ideally, I'd like to find one free, as I > know there is a full manual on board, but I want to begin reading > everything I can before I take possession. > > In talking with the surveyor, he indicated that these engines are pretty > good about not needing the fuel system to be bled after changing out the > racor filter if I fill the bowl with fuel when reassembling it. Can anyone > here verify that? I'm new to diesels, though I had a 1977 27MKIII for 16 > years with an Atomic 4, and am very comfortable with doing work on my > boat(s), so I'm guessing I can learn what I need to. > > The boat's been basically sitting for the last 5 years, with the last oil > change having been done in 2011, and it only having 30 or less hours on the > engine since then. > > Before we leave the dock I want to change the oil & filter, change the > racor filter and engine fuel filter, change the transmission fluid, and > change the coolant. Beyond that we will clear all the strainers. I'm > guessing that I'm not thinking of something (solely related to the engine > at this point). Anything else I should do? > > Bruce Whitmore > > (847) 404-5092 (mobile) > bwhitm...@sbcglobal.net > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > >
_______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
