Prop Sizes?

Corrosion, Paint, Through Hulls, etc.
Tranquilo
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Prop Sizes?

Post by Tranquilo »

I've got a 28 express with a single 318 engine that needs a propeller. There is not one there right now (stolen).

The engine is professionally rebuilt and has a velvet drive. Before I put it in the water, I need a prop and can't find any reasonable info on what I need!

The only articles I find are debates and theory about how to spec the best prop based on max rpms, etc. Nothing in the way of what came with the damn boat or consensus as to what a good replacement is.

Sooooooooo, any ideas? The weather is beautiful, wish I was out there :)

Thanks,

D
2x 1973 28 Express - Single 318
New electrical panels, water system and velvet drive
Miami FL & Catawba OH
Rockxx
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Re: Prop Sizes?

Post by Rockxx »

I have a 72 28' Express, Single 318 that is running a Michigan 14RH10, believe the shaft size is 1" but someone else will have to verify that. Boat is new to me and only drove it 5 miles to load on the trailer, were it still sits, so can't verify if this is the original size prop.
The original Marinette website, under performance, gave prop sizes for all models so you might find it there.
Good luck
1972 28' express "Safari"
Single Chrysler 318
Center Hill Lake, Tennessee
MetalHead
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Re: Prop Sizes?

Post by MetalHead »

So is that stolen as in before or after you got it home? That sucks .
1959 Family Cruiser - Sold - Gary Dick - 12/05/14
1963 Express 31x10 - Sold - Joe & Ginger Tabor - 01/21/2017
1963 Express 31x8.5 - In Dry Dock - Restore Underway
1987 Sportsman - Lay Lake (Coosa River) Alabama
Big BigM 's Rule !!!
Columbiana, AL
Tranquilo
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Re: Prop Sizes?

Post by Tranquilo »

I got my hands on a 14x10 but was told it wasn't the correct prop for speed reasons -I don't want it to go any slower than it already does :)
2x 1973 28 Express - Single 318
New electrical panels, water system and velvet drive
Miami FL & Catawba OH
Tranquilo
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Joined: Mon Sep 08, 2014 8:55 am

Re: Prop Sizes?

Post by Tranquilo »

And it was stolen while on a trailer....
2x 1973 28 Express - Single 318
New electrical panels, water system and velvet drive
Miami FL & Catawba OH
ericinga
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Location: Cumming, GA

Re: Prop Sizes?

Post by ericinga »

The 14x10 is used on the 360 single screws. You need a 14x9RH 1" shaft.
Eric Spies
1989 32 SDFB
Twin 318s
Lake Lanier, GA
Marinette Boat
Tranquilo
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Re: Prop Sizes?

Post by Tranquilo »

Thank you so much!
2x 1973 28 Express - Single 318
New electrical panels, water system and velvet drive
Miami FL & Catawba OH
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bill
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Location: Grosse Ile MI

Re: Prop Sizes?

Post by bill »

BigM
Did anyone copy the chart that was on John's Marinette website before it went down :?:
And if so would you please repost it on the "Marinette Boat Forum". ;)
Thanks
bill
Former owner of
ALUMINATION
Grosse Ile MI
Located on LakeErie
37' F/B Sedan
1975
Twin 360 Chrysler Marine
Raw water cooled
Hydraulic steering both helms
USCG Master Lic. Retired[/color]
Third Owner bill
Rockxx
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Joined: Fri Mar 06, 2015 12:39 pm

Re: Prop Sizes?

Post by Rockxx »

Since I have a 14/10 instead of the correct 14/9, what are we talking about as far as performance?
1972 28' express "Safari"
Single Chrysler 318
Center Hill Lake, Tennessee
balthaus
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Joined: Thu Sep 11, 2014 7:27 pm
Location: Southern Indiana / Louisville

Re: Prop Sizes?

Post by balthaus »

I think I have that printed at home.
I know I have the GPH / RPM / MPH printed somewhere.
I will check when I get home from work.
1984 32' Sedan FB
Twin Chrysler 360's
1.52:1 Velvet Drives
Raw water cooled
Ohio River
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