Gearbox was slowly failing and by end of season 2009 became too hard to use - we had torque at idle RPM or at full throttle, but never at mid RPM. The old owner claimed he had no idea about the trouble, but Google told me that most likely it was bronze clutch cone.
Leevene wanted 2000¤ (1000¤ for parts, 1000¤ for work) for the repair while whole new engine was about 5000¤.
On the photo: the gearbox is already removed. White stuff on the flywheel is hoarfrost, not corrosion. :-)
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The gearbox is at home.
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Gearbox KM2A, gear ratio 3,22, s/n 4496.
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Both locknuts were reused twice already - somebody has opened the gearbox before me. The old owner "had no idea"... :-(
I had planned to use the nuts again, but had to replace both of them.
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Both gears, drive cone, collars, shifter, nuts and seals are new; shaft, pin, bearings and their inner races are old.
All parts used with price from Torresen Marine. Note, that Torresen Marine does not sell Yanmar parts to Europe - Yanmar policy. :-(
A friend of mine purchased the parts and I picked them when I was to US.
Overall cost of parts was about $870 which in turn was about 620¤ with favorable exchange rate.
Yanmar part# 177088-03071, CONE, DRIVE, price $275.68
Yanmar part# 177088-03110, GEAR Z55, price $225.39 (*)
Yanmar part# 177088-03252, COLLAR B, THRUST, price $26.84 (2 pcs)
Yanmar part# 177088-03120, Gear, price $188.49
!!! Note that gears may be different if you have different gear ratio. Gears listed above are for gear ratio 3,22 ONLY !!!
Yanmar part# 24341-000600, O-RING, price $2.06
Yanmar part# 177088-02961, SEAL MHSA34 44 8,OIL, price $4.48
Yanmar part# 177088-03272, NUT, price $32.4 (2 pcs)
Yanmar part# 177088-06050, SHIFTER, price $50.3
Yanmar part# 180110-51910, GASKET, PLUG, price $1.68
Yanmar part# 24311-000180, O-RING 1A P-18.0, price $1.12
Yanmar part# 24413-254008, SEAL SC254008,OIL, price $2.62
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Assembly #1. Forward gear end. Thrust collar B and bearing inner race are in place.
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