Author Topic: Some holes in my lower unit  (Read 3975 times)

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Offline Jerry

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Some holes in my lower unit
« on: April 24, 2012, 08:53:39 PM »
Extra holes ya don't need.
My buddy Roger filling them.



That's better.



It will look better when it's all done. I had some stuff called "Lab-Metal" it was hard and I couldn't remember whare I got it. Looked all over. Guess I'll use JB Weld.

'72 Glastron GT160 Sport - Okie-Dokie
'63 Winner - Grandpa's Fisn-Bote
'63 Glasspar SeaFair Sunliner - Mischief Maker

Offline OleRed

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Re: Some holes in my lower unit
« Reply #1 on: April 24, 2012, 09:24:22 PM »
Looks Good Jerry !    looks like he enlarged the others, good deal.
Ya know ... adding a nose mod will offer those holes more water, straitens out the water to the root of the prop blades too.  I see the grinding on the skeg, did ya make the starboard side flat ?
1980 23ft Scimitar

Offline Jerry

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Re: Some holes in my lower unit
« Reply #2 on: April 24, 2012, 10:32:43 PM »
I took the 6 remaining holes from 1/4" to 5/16" I thought about a nose cone, but all the "race guys" here say it don't do squat under 70. I sure don't think it would hurt, but we'll see how everything works this way. I hadn't heard about a flat starboard side. What does that do?
'72 Glastron GT160 Sport - Okie-Dokie
'63 Winner - Grandpa's Fisn-Bote
'63 Glasspar SeaFair Sunliner - Mischief Maker

Offline OleRed

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Re: Some holes in my lower unit
« Reply #3 on: April 25, 2012, 12:14:46 AM »
I took the 6 remaining holes from 1/4" to 5/16" I thought about a nose cone, but all the "race guys" here say it don't do squat under 70. I sure don't think it would hurt, but we'll see how everything works this way. I hadn't heard about a flat starboard side. What does that do?

Jerry, if you remember, after I raised the drive 3" on my boat, it had a Terrible act of grabbing air to the prop in Any turn, slow or fast, the only way it would stay hooked up was strait ahead, after adding the nose mod, I could take turns power turns at any speeds with no problem .. I think you rode in it at 65mph around the bend in the river at Redwing doing that, and the nose mod itself added almost 3mph to my top speed.  I think the nose mod would help the efficiency of any prop, but the prop I had was lab cut shallow runner, made a Noticable difference.

about the skeg ... flattening the starboard side of the skeg adds a torque value to off-set the "paddle affect" of a shallow running prop with less resistance than a torque tab behind the prop.  Setting the prop as high as you are setting that one up, will be running the top side blades out of the water, when the hull gets up on plane, the prop begans to act as a "paddle wheel" pulling the skeg sideways, flattening the side of the skeg helps straiten that effect out.

http://www.freepatentsonline.com/6558213.html


1980 23ft Scimitar

Offline Burnin Daylight

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Re: Some holes in my lower unit
« Reply #4 on: April 26, 2012, 04:57:03 PM »
I've been here in Mexico long enough I'm starting to get holes in my lower unit also
1981 INTIMIDATOR  "BURNIN DAYLIGHT"
1984 CV23  "HOT KNOTS"

Offline Hotwired

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Re: Some holes in my lower unit
« Reply #5 on: April 26, 2012, 04:58:59 PM »
I've been here in Mexico long enough I'm starting to get holes in my lower unit also

LOL .... go west young woman!!!  FARTHER west!
.. it is what it is ... and that is how it should be!
Miss Mayberry - 1964 Saberflite
The Ship - 1979 CV-27
Canon Ball Eyes - 1976 CV-16ssV8
Da ProJect Bote - 1977 CV-23
It Is What It Is...... CVX20

Offline Hyperacme

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Re: Some holes in my lower unit
« Reply #6 on: April 26, 2012, 05:49:06 PM »
DON'T DRINK THE WATER !

LOL ....

Offline OleRed

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Re: Some holes in my lower unit
« Reply #7 on: April 26, 2012, 05:49:49 PM »
I've been here in Mexico long enough I'm starting to get holes in my lower unit also

ROFLMAO    Ain't gonna touch that
1980 23ft Scimitar

Offline V153

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Re: Some holes in my lower unit
« Reply #8 on: April 26, 2012, 06:12:37 PM »
It happens ...
'81 C500_given away, bought back_75.1 mph
'81 Baja 15SS_140 Frankenrude_66.7 mph
'70 something SpeedCraft_(Allison 16R Clone)_69.0 mph
'79 CVZ19_given away
'71 V153_54.8 mph_wrecked


WALK TALL AND CARRY A BIG BILGE PUMP

Offline Jerry

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Re: Some holes in my lower unit
« Reply #9 on: April 26, 2012, 07:43:35 PM »
I'm with Red. I am getting a mental picture though.
'72 Glastron GT160 Sport - Okie-Dokie
'63 Winner - Grandpa's Fisn-Bote
'63 Glasspar SeaFair Sunliner - Mischief Maker