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Old 07 March 2013, 17:31   #11
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Re - ratios, that was the info from Barrus??
I have just double checked and you're right, the old 4.8inch box is 1.75 too, so no change in ratio. Only other difference is the 1.25 inch propshaft requiring a racing solid hub system meaning meaning that if you hit anything in the water or the bottom then the whole engine is probably toast as the shock loading will be transmitted throughout the engine rather than absorbed by a rubber hub melting.
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Old 07 March 2013, 17:59   #12
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I'm sure I remember a conversation that didn't involve me regarding the lady at SD and her attitude/telephone manner.

So you may not be completely losing the plotter just yet...
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Old 07 March 2013, 18:04   #13
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women in Any Manly Activity Company...
Them blades is sharp mister, wimminfolk just ain't ready yet
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Old 07 March 2013, 18:05   #14
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This thread I think

Prop repair companies
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Old 08 March 2013, 03:18   #15
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Them blades is sharp mister...
...oops! For a moment there I had forgotten that I was now in the evil grip employ of Lord Vetinari, m'pologies!

I'll just slip off for that saucer of milk now...

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Old 08 March 2013, 17:27   #16
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I have just double checked and you're right, the old 4.8inch box is 1.75 too, so no change in ratio. Only other difference is the 1.25 inch propshaft requiring a racing solid hub system meaning meaning that if you hit anything in the water or the bottom then the whole engine is probably toast as the shock loading will be transmitted throughout the engine rather than absorbed by a rubber hub melting.
The output shaft seems to be the same diameter too! We have the same props and the rubber hub protecting the gearbox/engine.

Props back on tomorrow and hoping for a quick blast through the harbour to check it at WOT. Not for fun you understand, cause the Parker is just no fun at those speeds

Steve
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Old 25 March 2013, 18:15   #17
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Just a quick foot note to this thread.

Prior to the props being tweeked, the engines would rev to 5700 at WOT, hit 41kts and feel sluggish (for the Parker) when hitting the power.
Took them to Propeller Soultions and asked for 6100.
Had a quick sea trial on Sunday (bloody cold) and the result was spot on 6100, in excess of 45kts and more importantly, that great shove in the back on hitting the throttles. A very happy man and a great service
Steve
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