Yanmar troubles
I
lost power on my
Yanmar 75hp turbo (4JHE3-TE snE11637) on my 2002
Beneteau. I’ll try to be brief with the symptoms.
We have a Gori prop that we use in “overdrive” a great deal. When the
pitch is changed from 17’’ to 19” the max
RPM we get is 2200. This has been consistent since the beginning, so I don’t think it is unusual. I have
battery bank switches, house and
engine. When we sail I disengage
engine bank, but I forget to engage it again after we start motoring. I did so NY eve, we ran for about 24 hours, while the
RPM was slowly dropping to 2000. Seas were heavy and I thought that the RPM issue was because of those heavy seas. Then the engine “died”. When I restarted, it ran for 10-15 seconds, while increasing throttle and died again. Later we determined that the engine did not die completely, but it was a a very low idle speed. Since the stop button can only be engaged when the engine and key are on, we could not get it stopped completely. For many hours, it was running at this low idle speed. It eventually stopped.
After the engine
lost power, I engaged the engine
battery bank along with the house, and started our
generator set. We let that run for 20 hours. It seems that all
batteries were topped off (according to monitors (did not disconnect and measure, but we can do that). We have been visually checking
racor bowl (filter has 50 hours on it) and check engine
oil every time before we leave
dock or haul
anchor.
Another symptom, once in a while as I am manuevering into slip or
mooring, the
Volvo Penta single lever (I think it’s a PC-270, or something like that) throttling in
gear does not increase RPM and hence no power (either forward or reverse). Too avoid
collision, I had to hold the button down to disengage
gear, rev engine and while backing down, reengage gear. We checked the physical linkage for gear box and throttle, readjusted it, but it has happened again. Cable have been check, and they are not broken.
Any suggestions
Thanks ina advance