The assembly of drive components was done restoring the assembly in the same order they were removed. The pieces that were press fit were driven on using an over-sized socket around the shaft and a rubber mallet. Below the assembly is held using the drive flange in a vice, and the end bolt torqued to 70 ft-lbs.
Once all the pieces were fit back together, they were coated with SAE 30 oil and inserted into the transmission case. The shaft on the right side has an o-ring on the far side and is pressed into the transmission case. This has to be assembled with all the shafts at the same time, or the gears interfere with each other if done one at a time. There is soft setting gasket sealer applied to the flange that mates with the bell housing. This joint must seal the oil inside the case.
The external parts that were rusted have been cleaned and primed with Rustoleum primer. These include the transmission input and output flanges, shift lever, and I decided to paint the flexible coupling just so it matches the other stuff. The flexible coupling is not stock on the J/30. It was added to help reduce vibration transmitted through the shaft.
Here is the finished transmission with fresh Yanmar Gray paint on the aft end. I also replaced the label by the shift lever to mark forward and reverse directions. The transmission will be filled with 0.25 liters of SAE 30 oil and put on the shelf until spring, or at least a warm day when I don't need to shovel snow to get into the boat.
2 comments:
Bill,
Did you replace any bearings? Both of my the input and output bearings were shot according to the yard. They spooked me with the cost of parts and labor so I went for a new transmission. ( Part of my pre-retirement boat preparation ). My old transmission howled but worked fine. I got used to the noise but new crew would comment on the din.
Rob
Rob,
The bearings were fine. I had the clutch redone 4 years back, and did not have any issues with the bearings or clearances.
Bill
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