does the boat have to be in forward gear? This means a lot to me to have it answered. I thank you in advance.
2007-08-31 14:49:07 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Boats & Boating
yes the reason is so that the shaft can be turned to allign the splines up with the splines in the head when you put it back together otherwise when you put the lower unit back together you have no way to allign the splines back again since you will move them when you open the housing where the impeller is to replace it also put a dab of grease inside the housing before you put it together so it wont start up dry and mess up the new one when you start it up the first time since it will take about 10 or 15 seconds for the water to be pumped back through the water jackets also count on changing it at least once a season since they can become brittle and break easily
2007-08-31 15:03:09 · answer #1 · answered by tazmatic1 4 · 0⤊ 0⤋
Im going to guess you did not disassemble the motor where the water pump "impeller" would be, and that you really mean the "Propeller" that spins around to push the boat foreword.
That being said, You should not need to put the boat in gear, foreword or reverse to change the prop, but it may make it easier because it will keep it from turning when you remove the nut that holds it on. Most boat motors in that time period have a cotter pin and a slotted hex nut that hold the propeller onto the prop shaft. You must bend the cotter pin straight and take it out before you can unscrew the nut to get the prop off.
I hope this helps. Good Luck!
2007-08-31 22:09:13 · answer #2 · answered by jepstr67 2 · 0⤊ 0⤋
now, Mercruiser DID make a 90 outdrive, but it was before '69. but even if you're referring to an outboard, the answer is no. the outboard gearcase is spring-loaded toward forward gear, so it's WISE to have the shifter AND the gearcase in fwd. gear when you go back with it. sometimes the gearcase will slip into fwd. and you won't hear it click. if the shifter is in neutral at this point, you end up doing the same job twice to correct it.
2007-09-01 11:12:58 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Aligning the drive shaft when you're putting it back together will be easier if you take it apart with it in gear. If it is in neutral you will have no way of turning the drive shaft while applying an upward force to engage it.
2007-08-31 22:05:15 · answer #4 · answered by gejandsons 5 · 0⤊ 0⤋
put soap, NOT GREASE, to lube the impeller when putting it on, the impeller is made out of rubber, any petroleum product will degrade the rubber.
2007-09-01 04:45:50 · answer #5 · answered by Anonymous · 0⤊ 0⤋