Removing my 1969 Mercury 650 Thunderbolt Ignition 65hp outboard’s lower unit.

Removing my 1969 Mercury 650 Thunderbolt Ignition 65hp outboard’s lower unit.

Well, good news is that she seems to run fine. No water from the pee hole though so I shut her down and figured I manage well just remove the lower unit and …

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Mentorcase says:

Not old old mercury’s it isn’t.

helmet1A says:

I just dropped same lower unit and notice the shift linkage didnt work
before I dropped it but when out it looks like theres two rods one that
goes up through motor and one on lower unit I am very curious about what
connects these so I can put together and get back on the water. i have the
same motor that turns to put lower unit in gear.please reply.

Goregoon says:

Actually I didn’t know there was a thermostat, I assumed it was just an
open flow. I did run it for a bit though (not long cuz I was not wanting to
damage it with no pee) I accelerated a bit in forward to check if prop was
functioning and same with reverse and she still didn’t piss for me, so I
shut her down. Impellers are a cheap easy fix and I assume this one is
pooched and probably has not been changed out in some time. Thanks for
popping by!

David Redmon says:

Those units are easy the only issues the ever have is the rubber pump or
the water tube going to the power unit will freeze and split…let me know
if you have any trouble on reassembly…Dave

thor2745 says:

Hey Gorge, you are a repair genius… I just gotta get use to your imperial
measurements, over here in Australia it’s all metric.. Keep havin fun mate
and I wanna see the engines next stage, Cheers Geoff

Leslie Mere says:

did you shoot any video from replacing the bottom end. I really would like
to ask you a few question about replacing the lower unit. I really didn’t
pay attention when I pulled it and I’m not sure if I’m missing anything.

805ROADKING says:

Fine job Capt!! I hope you let it warm up enough for the thermostat to
open!! It won’t start peeing till that opens eh!!☺

Goregoon says:

Thanks Dave, I was fibbed to a bit on this trade but I was OK with it as
soon as I knew it ran well. The peehole was clogged which was my first clue
I had been fibbed. He said he took it to the river a lot. I figure it
hasn’t been in the water for some time now. I’ll certainly keep you in mind
if I have any trouble plopping her back in. Knowing me, I’m bound to find
some sort of issue!! LoL Thanks for coming by!

CRAZY4WHEELHORSES says:

You will love that motor! I love the ol mercs…….especially the 6s! but
the 4 cylinders are smoooooth!

Goregoon says:

Far from genius my friend! LoL I just like to get my hands dirty. We
Canadians are Metric as well since the early 70’s, this motor however is a
69 and was born Imperial. You’ll have to wait til the spring though for the
motors next stage, she’s tarped and gone to sleep for the winter. I will do
a impeller inspection video soon though, but wont install the new one until
spring, no use it sitting losing it’s shape all winter. Thanks for dropping
by!!

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