1941 KB-3 Wobbler
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- This topic has 5 replies, 3 voices, and was last updated 1 year, 2 months ago by Buccaneer.
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January 23, 2023 at 4:34 pm #271640
This is the first wobbler I’ve ever seen that had grooves on it’s center bore.
There’s matching ridges on the rotor’s “high side”, but not all the way
around it’s circumference.
What do you suppose was the reason of the engineer’s design,to have these
grooves?Prepare to be boarded!
January 23, 2023 at 7:39 pm #271659Somebody will probably beat me to it before I get my brain fired up and remember the name of the seal. Same process as the grooved center bearing on OMC powerheads.
January 23, 2023 at 8:32 pm #271663The word is Labyrinth Seal. The reply was speculation.
January 23, 2023 at 9:47 pm #271664The steam driven turbine generators at work had labyrinth seals with
oil pumping through them to keep the hydrogen in the generator.
I guess in Mercury’s design it helped to keep the water from bypassing
from going to the powerhead.Prepare to be boarded!
January 24, 2023 at 9:28 pm #271689The grooves in brass cam are machined not wear. I do not know about the Wobbler. Brian Wilcox makes them on an exchange basis due to metal parts embedded in the Wobbler.
If I were forced to Walk the Plank and make a guess, it would be the grooves in the Oscillator (Hockey Puck) are part of design to trap water between brass cam and rubber oscillator to lubricate both and reduce wear. especially when operating in shallow water where sand and silt are part of the mx. My best guess anyway.
Louis
- This reply was modified 1 year, 2 months ago by green-thumbs.
- This reply was modified 1 year, 2 months ago by green-thumbs.
January 24, 2023 at 10:32 pm #271692The grooves in brass cam are machined not wear. I do not know about the Wobbler. Brian Wilcox makes them on an exchange basis due to metal parts embedded in the Wobbler.
If I were forced to Walk the Plank and make a guess, it would be the grooves in the Oscillator (Hockey Puck) are part of design to trap water between brass cam and rubber oscillator to lubricate both and reduce wear. especially when operating in shallow water where sand and silt are part of the mx. My best guess anyway.
Louis
- This reply was modified 1 year, 2 months ago by green-thumbs.
- This reply was modified 1 year, 2 months ago by green-thumbs.
Just ordered a wobbler from Brian a few minutes ago!
Prepare to be boarded!
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