Jerry Hey wrote:
>
> Hi Paul, I just got off the phone with the Barry Mount factory rep. in
> Mass. When I told him I wanted the 140lb isolator he said there was
> no such thing. According to a chart which I downloaded the 20002-11
> mounts are rated at 130 lbs. I told him that the engine weighed 300 lbs
> and he recommended the 20002-12 isolators which are rated at 175 lbs.
> He cautioned me against overloaded the isolators as they would break
> down. He said that two 175 lbs isolators would dampen the movement of a
> three hundred pound engine effectively. That is what I ordered.
>
> Another complication is that the mounting bracket needs to be .563
> thickness so it will have to be machined out of heavier material.
> ---Jerry
175 pounds sounds fine with me. The 140 number was from memory which at my
age
is getting unreliable. Just make a 2.5 inch dia. .065 thick aluminum
washer
and bond it to the 1/2 inch plate. Unless of course you REALLY WANT to
machine the
rubber mount holder out of 5/8 or 3/4 aluminum plate on the NC mill :-)>
I don't think it is all that important and I will try the 1/2 inch plate
first.
It is something that can be easily changed later.
I think the Barry rep is being overly conservative and covering his ass.
Paul Lamar
Paul,
the thick center mount 22002-12 has axial load bearing of 175# and Radial of
65#, which with two mounts gives you 130# of thrust capability.
The thin center -13 (optional) uses 0.5 plate, and has an axial of 160# each,
and a radial of of 125# which allows for 250# thrust with two.
Wouldn't that be better?
Bill Schertz
KIS Cruiser #4045
Looks like it. Hard to believe the thinner plate has a higher radial.
Never noticed that. I really don't think any of it is critical.
It's rubber after all. These are so cheap I bought a bunch of different
dash numbers and it is hard to tell the difference.
Jerry, before you buy that 5/8 bar stock check with the Barry rep on this.
Looks like Bill is on to something. Don't cut anything until you get
the bushings. Some of the dimensions might be different.
Paul Lamar
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