Thought I would give back a bit after what iboats has given me over the year.
Anyway, executed an upper motor mount replacement for a 1977 70 HP evinrude that had lived in salt water all her life.
Took me and a friend 12 hours, yup, 12 hours. That includes some runs to worst marine as well as a break a quick lunch but regardless, it was a bruiser.
These mounts are under the power head so you have to remove it as the first step.
First bolt, bad omen? It was the ground to the motor mount?the head snapped. I ended up reaming the connector hole out a bit and attaching it to the upper starter bolt. It was a good repair I think as it?s a better, unpainted service for the ground contact.
The power head bolts were pretty much welded on (all 6 of them) so I had to use this sears bolt remover tool?best thing ever, would have never made the repair without it. It was used on a number of other bolts as well.
http://www.sears.com/shc/s/p_10153_12605_00952166000P?vName=Tools&keyword=stripped+nut
After the power head removal we found literally just small pieces of rusted mental that , at one time, made up the motor mount housing along with random little pieces of rubber. The bolts that held the mount in place looked like something they pulled off the titanic last year.
We had to pull the lower mounts as well, more broken bolts, these I understand as they actually sit in salt water.
Pulled the lower unit and exhaust housing. All that?s left at this point is the cast mount on the transom, pretty amazing, took apart an entire 30 year old motor?kind of.
Replaced the mounts with all new bolts and then the new gasket and power head and it was all smooth sailing from there more or less. Just tired at that point so when you drop a bolt or put something on in the wrong order that forces you to disassemble again, it?s just a pain. Invest in one of those telescoping magnetic tools to snag those fallen nuts and bolts; you could save an hour per job at least.
I attached a picture of the after with the new mounts in place.
Sea trials the next morning, works great, no leaks around the gaskets, nothing shaken loose.
Good luck to anyone tackling this job, it is doable and you don?t really need any special tools.
Anyway, executed an upper motor mount replacement for a 1977 70 HP evinrude that had lived in salt water all her life.
Took me and a friend 12 hours, yup, 12 hours. That includes some runs to worst marine as well as a break a quick lunch but regardless, it was a bruiser.
These mounts are under the power head so you have to remove it as the first step.
First bolt, bad omen? It was the ground to the motor mount?the head snapped. I ended up reaming the connector hole out a bit and attaching it to the upper starter bolt. It was a good repair I think as it?s a better, unpainted service for the ground contact.
The power head bolts were pretty much welded on (all 6 of them) so I had to use this sears bolt remover tool?best thing ever, would have never made the repair without it. It was used on a number of other bolts as well.
http://www.sears.com/shc/s/p_10153_12605_00952166000P?vName=Tools&keyword=stripped+nut
After the power head removal we found literally just small pieces of rusted mental that , at one time, made up the motor mount housing along with random little pieces of rubber. The bolts that held the mount in place looked like something they pulled off the titanic last year.
We had to pull the lower mounts as well, more broken bolts, these I understand as they actually sit in salt water.
Pulled the lower unit and exhaust housing. All that?s left at this point is the cast mount on the transom, pretty amazing, took apart an entire 30 year old motor?kind of.
Replaced the mounts with all new bolts and then the new gasket and power head and it was all smooth sailing from there more or less. Just tired at that point so when you drop a bolt or put something on in the wrong order that forces you to disassemble again, it?s just a pain. Invest in one of those telescoping magnetic tools to snag those fallen nuts and bolts; you could save an hour per job at least.
I attached a picture of the after with the new mounts in place.
Sea trials the next morning, works great, no leaks around the gaskets, nothing shaken loose.
Good luck to anyone tackling this job, it is doable and you don?t really need any special tools.
