I had water in oil so I had a local shop pressure check & they replaced the seals in my 2004, BF150, lower unit along with water pump.
I still have milk so I decided to do it myself. I drained and pulled the lu, applied about 10-13 psi and found a leak around the shift rod spline at the holder. I pulled the rod holder and found there was no spring ring around the lower seal! The seals were installed in opposite directions. My Honda manual doesn't say which way but shows a cut-out diagram which looks like both seal spring rings are in the same direction, which is UP, outward of the gear case. I thought the spring on the bottom seal would have been pointing down facing the oil and the top one facing up toward the water. This is how it appears they are installed on the Prop shaft.
The manual is BF135A-BF150A, Issue date: January 2008. Page 14-10 for shift rod seals and page 14-22 for prop shaft seals.
Appreciate any help!!
I still have milk so I decided to do it myself. I drained and pulled the lu, applied about 10-13 psi and found a leak around the shift rod spline at the holder. I pulled the rod holder and found there was no spring ring around the lower seal! The seals were installed in opposite directions. My Honda manual doesn't say which way but shows a cut-out diagram which looks like both seal spring rings are in the same direction, which is UP, outward of the gear case. I thought the spring on the bottom seal would have been pointing down facing the oil and the top one facing up toward the water. This is how it appears they are installed on the Prop shaft.
The manual is BF135A-BF150A, Issue date: January 2008. Page 14-10 for shift rod seals and page 14-22 for prop shaft seals.
Appreciate any help!!