Topic: 1966 Evinrude 9622A, 9.5 hp, motor mounts – Page 2

This topic has 26 replies, 6 voices, and was last updated 2 years ago by Buccaneer.

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February 6, 2023 at 2:58 pm #272450
Buccaneer
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I did a little “Shake it all about” test before I tore it apart.

https://youtu.be/WymuxfTVczs

The front upper mount. I don’t see the rubber torn loose at all,
but it is pretty “flexible”. It looks to have been replaced at one time?

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February 6, 2023 at 4:36 pm #272455
Buccaneer
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I had missed the front upper motor mount on MarineEngine last night,
but after seeing it in person today, I found it in the Powerhead Group.

https://www.marineengine.com/newparts/part_search.php?part_num=380963

If I spend $99 dollars on a motor I don’t want or need the world is coming to an end.
I did learn a bit ago that my 1971 Johnson 9.5 that’s “froze up” has the same mount.

I’m not sure what to think about the mount I remove, seeing how the rubber is still
attached to both metal plates yet.
What would happen if I installed a chunk of garden hose over each post on the mount?
It may limit travel of the shaking powerhead, and prevent any metal to metal knock.

Seeing how I’m not seeing anything obviously wrong with the mounts, I’m wondering
it the motor was running on one cylinder seven years ago, hence the shaking.
But from what I remember, it sounded okay when “wound up”.

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- This reply was modified 2 years ago by Buccaneer.
- This reply was modified 2 years ago by Buccaneer.
February 6, 2023 at 6:21 pm #272468
frankr
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I’m still not seeing any vibration damper. The part number on the upper front mount tells me that somebody’s been in there before.

The lower “pucks” can be snugged up side-to-side by a good swat on the shell halves with a big rubber mallet after it is assembled. Standard procedure after the tourists kept running aground on the oyster beds (rental motors). I don’t know which I replaced the most of, mounts or propellers.
February 6, 2023 at 9:15 pm #272470
Buccaneer
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Frank, I doubt if I’m going to find the “vibration damper” kit to update my motor.
But out of curiosity, is there a part number for it?
Would the 1971 9.5 Johnson parts motor I have, be likely to have this upgrade,
or would it have something entirely different?
I may dig it out of the shed tomorrow to take a look at it.

The motor did seem to have more “side to side” play than “front to aft” play
when doing the shake test. I was thinking about ways to shim up some of
the rubber pucks, with washers, etc., but I guess the “big hammer method”
may work too!

Thanks.

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February 6, 2023 at 10:04 pm #272473
frankr
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I turned 86 last week, and CRS might be starting in. I used to claim I could tear one of those things down for mounts, blindfolded. Probably have to peek now. But yes, the ’71 should have the side mounted vibration dampers. You would also use the ’71 clamshell halves because they will have the studs for the vibration dampers. Also, the outer exhaust cover, if I remember correctly. If you do all this, it will make a whale of a difference.
February 7, 2023 at 8:14 am #272479
crosbyman
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Canada Member - 2 Years
my 9622a from 1966 has the side mounted anti-shake adapter kit… works pretty good so far. Engine never choked itself

Joining AOMCI has priviledges 🙂
- This reply was modified 2 years ago by crosbyman.
February 7, 2023 at 9:31 am #272483
Buccaneer
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Crosbyman, I believe I seen the vibration damper / linkage that Frank and you refer to,
in this video, starting at the 10:00 minute mark, but I can’t tell if
it’s spring loaded, rubber, or how it works.

https://youtu.be/s4-2GdxNzjw

Also, in the same video, starting around 11:30, it shows the lower front mount.
The one he removed looked just like mine, with a bolt flange only on
one end of the rubber, and but the motor case has threaded, un-used mount
holes for another flange. Somehow, he came up with a different mount,
that has a double flange.
The parts diagram appears to show a rubber mount with only one flange.
Confusing!
Heading out to the garage to “ponder”, and dig the 1971 Johnson parts
motor out of hiding.

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February 7, 2023 at 11:44 am #272493
frankr
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The two-flange lower mount is for motors with the older type vibration damper in front. The one-flange mount is for newer motors with the side-mounted vibration dampers. I guess there is nothing wrong with mixing the systems, but it appears the result is a stiffer suspension system. Never tried it myself.

BTW, different strokes for different folks. I would have done it slightly different. I would have left it clamped to the stand and leaving the port side acorn nut attached, remove the starboard side cover first. That leaves the motor hanging in the port side cover. Then remove the acorn nut and simply lift the motor out.
February 7, 2023 at 1:34 pm #272506
Buccaneer
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Happy Birthday Frank!
The 71 Johnson does have the vibration dampers, one on each side of the powerhead.
This is not a retrofit kit by appearance, but rather a design change at some point,
as the exhaust cover on the 71 powerhead has raised bosses for the two damper
mounting points.
Also, as you imply, the clamshell halves have special mounting pins built in for
the dampers to attach to.

I thought about the possibility of installing the Johnson clamshells on the Evinrude,
and it looked promising, until I noticed a big crack in on clamshell by the transom
swivel pin mount.

I’m not sure what was involved in the retrofit vibration damper upgrade,
when it came to attaching them to the exhaust cover and to the clamshells
on each side, nor whether is feasible to mount the dampers from the 71
to the 66 powerhead.

The bottom front motor mount on the 71 looked exactly as the 66, so I guess
there’s nothing wrong with the 66.

1971 port side clamshell with the vibration damper

1966 port side clamshell

1971 powerhead exhaust cover with raised bosses
and special bolts

1966 Powerhead exhaust cover
No raised bosses for damper to mount to, but
perhaps one could use bushings, if the cover
bolt holes are the same, or switch covers.

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February 7, 2023 at 1:42 pm #272511
Buccaneer
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1971 clamshell port cover crack 🙁

1971 Starboard clamshell damper mount location

1966 Starboard clamshell, note that there’s
no boss where retrofit damper would attach.

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