EricJRW
Chief Petty Officer
- Joined
- Feb 3, 2010
- Messages
- 488
Re: Multiple props, same over-rev'ing problem
That's very interesting. Although my gut was (apparently) wrong on it being a prop problem (though now maybe not completely), when I looked at the rubber bushing it always appeared to be just a bit melted. Not terribly deformed, just evidence where rubber meets metal that the rubber got hot. It did not seem possible that a submerged prop could overheat, but now I do have something else to look into.
Thanks for that info.
Eric
I would pull the lower unit and check the water passage above torque tab, this passage feeds water into the exhaust to cool the exhaust and prevent damage to the prop hub. I have seen this a a couple of V-4's that sat in the water all the time. Alos I replaced several units when the "lighting case" came out as hole was to small and caused spun hubs and if unit was on a Ficht seen several melted plastic and rubber hubs due to the higher exhaust temps they ran.
That's very interesting. Although my gut was (apparently) wrong on it being a prop problem (though now maybe not completely), when I looked at the rubber bushing it always appeared to be just a bit melted. Not terribly deformed, just evidence where rubber meets metal that the rubber got hot. It did not seem possible that a submerged prop could overheat, but now I do have something else to look into.
Thanks for that info.
Eric