Re: [Titanaircraft] Prop failures

I'm going to go out on a limb and guess that the prop failure recently
posted had more to do with the prop abruptly passing through the muffler
rather than passing through the gasses that come from the muffler. Just
a guess. :)

Nonetheless, your advice is still worth reading.

togoforth wrote:
>
>
> The other day, Vivian posted a request for help for a friend grounded
> with a busted Sensenich. Several others have made comments about prop
> failures on Sensenichs and I thought I pass on something that I
> learned from Lonny Prince when I replaced my Sensenich with one of his
> props. The instructions for mounting the P-tip said that the prop must
> be at least 6 inches from the engine exhaust ports in a pusher
> configuration or damage to the prop can occur. My exhausts are only
> about 3 1/2 inches from the prop disc and I was getting discoloration
> on the prop from this. I had the same thing going on with the
> Sensenich. The fix is the remove the prop and rotate it a bolt hole or
> two (or as needed) until the prop is only passing the exhaust ports
> when the engine is in compression. This I did, and no more exhaust
> discoloration. I suspect the failures that have been reported are most
> likely due to prop damage caused by improper mounting in relation to
> the high exhaust temperatures to which it is being subjected.
> Sensenich makes a fine product and they have been in the business
> since dirt was invented. I'm not inclined to think the prop is the
> problem.
>
> Tim Hansen
>
>

[Non-text portions of this message have been removed]

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