Can I suspend an A-65 by the prop. flange?

[Michael Horowitz]

Can I suspend an A-65 engine by the prop flange without causing undue
strain on the internals? - Mike

[Ernest Christley]

Michael Horowitz wrote:
> Can I suspend an A-65 engine by the prop flange without causing undue
> strain on the internals? - Mike

You better be able to.

You get about 3.5 to 4lb of thust from each horse at the prop flange. A
100Hp engine should give you somewhere in the ballpark of 400lbs. The
engine has to withstand that 400lbs of thrust trying to pull the prop
flange off. If that engine weighs 400lbs and only gives you 100Hp,
you'd do better to leave it on the ground and just flap your arms real
hard 8*)

[Montblack]

("Michael Horowitz" wrote)
> Can I suspend an A-65 engine by the prop flange without causing undue
> strain on the internals? - Mike


What kind of stand did you end up with?


Montblack

[Michael Horowitz]

"Montblack" > wrote:

>("Michael Horowitz" wrote)
>> Can I suspend an A-65 engine by the prop flange without causing undue
>> strain on the internals? - Mike
>
>
>What kind of stand did you end up with?
>
>
>Montblack

Still up in the air - my A&P got ill so I wasn't able to visit my
engine. Based on the post just above this one, which implied "of
course", I'll probably bolt the flange to a 2x8 and suspend the engine
flange up between two saw horses. All I'm doing is bolting on the
exhaust, carb. and some other stuff prior to lifting it onto the
engine mount. - Mike

[Charlie]

Michael Horowitz wrote:
> Can I suspend an A-65 engine by the prop flange without causing undue
> strain on the internals? - Mike
A conventional engine stand for an a/c engine is configured so that the
engine sits *on* the flange ('nose down'). You start building with just
the crank standing upright on the flange & add parts.

A plywood disk the same diameter as the widest dimension of the engine
drilled with a bolt circle matching the prop flange, a handful of bolts
& fender washers & you have a stable stand leaving easy access to all
the engine. Obviously you need to shim the bottom of the disk to allow
for the bolt head thickness.

Hope the word picture is adequate.

[Michael Horowitz]

Charlie > wrote:

>Michael Horowitz wrote:
>> Can I suspend an A-65 engine by the prop flange without causing undue
>> strain on the internals? - Mike
>A conventional engine stand for an a/c engine is configured so that the
>engine sits *on* the flange ('nose down'). You start building with just
>the crank standing upright on the flange & add parts.
>
>A plywood disk the same diameter as the widest dimension of the engine
>drilled with a bolt circle matching the prop flange, a handful of bolts
>& fender washers & you have a stable stand leaving easy access to all
>the engine. Obviously you need to shim the bottom of the disk to allow
>for the bolt head thickness.
>
>Hope the word picture is adequate.


Short and simple. Thanks - Mike

[jls]

"Charlie" > wrote in message
.. .
> Michael Horowitz wrote:
> > Can I suspend an A-65 engine by the prop flange without causing undue
> > strain on the internals? - Mike
> A conventional engine stand for an a/c engine is configured so that the
> engine sits *on* the flange ('nose down'). You start building with just
> the crank standing upright on the flange & add parts.
>
> A plywood disk the same diameter as the widest dimension of the engine
> drilled with a bolt circle matching the prop flange, a handful of bolts
> & fender washers & you have a stable stand leaving easy access to all
> the engine. Obviously you need to shim the bottom of the disk to allow
> for the bolt head thickness.
>
> Hope the word picture is adequate.

I made an engine stand from a Black and Decker folding work table. I
drilled the flange hole pattern in tooling plywood for the top. The table,
whose structure is rated for about 500 lbs., has been used for 200-lb.
C-85's, C-90's, and O-200's.

I have seen A-65's hung from the crankshaft end with a hook attachment
screwed onto a tapershaft. Hanging from a flanged crankshaft would
probably be OK as long as you spread the load over the entire flange. But
who would want to? I wouldn't want to be working on an engine swinging on
a chain.