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I have a cobra 4.3 with a cobra outdrive. It has a 14 1/2 x
I have a cobra 4.3 with a cobra outdrive. It has a 14 1/2 x 19 prop. I was given a ss prop, 15 1/4 x 19. Can I use this prop and what is the difference. I do a lot of trolling and occasionaly pull the… read more
Jason
Jason
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Vocational, Technical or Trade School
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I'm buying a used stainless stell propeller and wanted to
I'm buying a used stainless stell propeller and wanted to know if it fits my boat. I have a Alpha one Gen 2 outdrive and the propeller has these numbers stamped on it "4879794 A4 17P" Any idea if it w… read more
Charles
Charles
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WHAT IS THE PROP SIZE 120 HP ELPT MERCURY FORCE ENGINE. I
WHAT IS THE PROP SIZE FOR A 120 HP ELPT MERCURY FORCE ENGINE. I PURCHASED THIS ENGINE USED AND FEEL THE PROP IS NOT THE PROPER SIZE. CURRENTLY THE ONE I'M RUNNING IS 13 1/4 X 17 PITCH… read more
Tan
Tan
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have a rinker 280 fiesta vee. twin 305 ci, 2bbl mercs, alpha
have a rinker 280 fiesta vee. twin 305 ci, 2bbl mercs, alpha one gen II, with counter rotation port side. what is standard prop size for that boat and or what ss prop recommended. boat weight 8500lbs … read more
Tan
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I just purchased a 1980 bayliner with twin 470 mercruiser
hello, I just purchased a 1980 bayliner with twin 470 mercruiser engines. looking at the boat from the back, the outdrive on the right, is frozen. My question is, will any 470 outdrive be able to repl… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
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Is there really any noticeable difference or even a slight
Is there really any noticeable difference or even a slight difference between a 14 3/4 X 17 prop and a 15 X 17 prop ? My boat had a 15 X 17 prop and I came across a good deal on a 14 3/4 X 17 prop and… read more
orcamarine
orcamarine
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I have a twin 165hp setup in my boat. In it is one outdrive
I have a twin 165hp setup in my boat. In it is one outdrive with a1.65:1 set of gears and one outdrive with a 1.84:1 set of gears.So I assume the latter one is from 470 at one time.However both have 1… read more
James
James
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Vocational, Technical or Trade Scho
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I have a Johnson Tracker 40 hp long shaft 1990 boat motor.We
I have a Johnson Tracker 40 hp long shaft 1990 boat motor.We have it on our 20 ft party barge. The Propeller is slipping. We need to find another one but don't understand the pitch and how it works. I… read more
Jeff G.
Jeff G.
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I have a 20 Pontoon boat with a Suzuki 2010 DF 70A motor,
I have a 20' Pontoon boat with a Suzuki 2010 DF 70A motor, I tried a 13x17 pitch prop could not get enough RPM's about 42hundred, went to a 14 pitch and the engine looses grip at mid throttle, (cavita… read more
Jason
Jason
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I have a 1989 donzi regazza and i can only hit 3300 rpms. tried
I have a 1989 donzi regazza and i can only hit 3300 rpms. tried big carb did not help at all what size prop should boat have. It has a 14x17 on it now.… read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
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I have a 2001 Evenrude 135 horsepower E-tec 2 cycle engine
I have a 2001 Evenrude 135 horsepower E-tec 2 cycle engine and it runs great but I am only pulling 3900 RPM. The current prop is a 15 x 17 and I have this on a 20' center consol T-top 204 Angler fishi… read more
Captain Dave
Captain Dave
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What is the correct gear ratio for the outdrive on a MCM 5.7Lv8
What is the correct gear ratio for the outdrive on a MCM 5.7Lv8 the boat is a Rinker, Engine serial # XXXXX Trans serial # XXXXX there is a 1.84:1 on at the moment but we think it has been changed, an… read more
capt ron 1959
capt ron 1959
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I have a 1995 Mercruiser 4.3LX/V6 Engine in a Stingray 586zpx
I have a 1995 Mercruiser 4.3LX/V6 Engine in a Stingray 586zpx ski boat and need to know what propeller I need to order to replace the 3 blade one needed for the boat.… read more
Jeremy R.
Jeremy R.
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What size replacement propeller is appropeiate for my 90 HP
What size replacement propeller is appropeiate for my 90 HP year 1999 Johnson outboard boat motor installed on a 22 ft pontoon boat.. Does the age of the motor make a difference? It runs about 100 hou… read more
Jason
Jason
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Ihave a 24 ft Robalo center console with twin 4 stroke Yamahas.It
Ihave a 24 ft Robalo center console with twin 4 stroke Yamahas.It has 13-3/4 17 stainless props. The boat slips or cavitates when trolling at 8 -10 knots. I tried 14-1/2 17 aluminum props and the boat… read more
Captain Dave
Captain Dave
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hello i have a 1984 19 fibrglass boat with a mercruiser 140
hello i have a 1984 19" fibrglass boat with a mercruiser 140 i use the boat within my state at various altitudes i put a 16x19 prop on at 5000 ft it runs great i was told to use a 17p for higher altit… read more
Master Tech
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I bought a boat that has an Evinrude 175 HP motor on it. During
I bought a boat that has an Evinrude 175 HP motor on it. During transport, the Prop was stolen. I think the year is late 80s , early 90's (Serial R 1500 994) What size prop should I get? It is on a ce… read more
Master Tech
Master Tech
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I have a 98 40 hp force on a 17 key largo. My boat will not
I have a 98 40 hp force on a 17' key largo. My boat will not go over 15 mph or plain off. Is this motor to small?… read more
Scott
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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