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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Honda Propeller Information		  New Topic  Topic Locked
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Initially Posted - 08/06/2007 :  12:55:28  Show Profile
Since so many of you have Honda outboards I thought I would share my latest experience with you. Sunday, I was returning from a 4 day trip to Catalina Island and was about 15 miles out of Two Harbors when for no apparent reason my engine accelerated to a high RPM. I backed off the accelerator and when I tried it again I could only maintain about 3 knots before it would once again go to high RPM’s without any change in boat speed. My initial thought was I had sheared the shear pin so I climbed in our kayak and pulled off the prop. However the pin was fine so I remounted the prop and tried it again with the same results. This time I did notice a sound like something metallic was working loose. It was obvious I was not going anywhere with this engine. Luckily I had my 5hp Yamaha outboard that we use for our dinghy mounted to the stern rail so I swapped the Honda 8HP with the Yamaha. I had to mix some additional gas for the Yamaha, as it is a 2 cycle and the Honda is a 4 cycle, but the Yamaha handled the remaining 40 miles without a problem. As to the problem, it turns out the Honda propeller has a rubber insert which captures the shear pin and is pressed into the aluminum prop. The rubber had lost its adhesion to the aluminum and therefore the aluminum prop was spinning on the rubber when enough torque was applied. The prop is actually designed this away in case you hit an obstruction. I guess it is a redundant safety feature along with the shear pin. I had extra shear pins so if the pin had sheared I could have repaired it. The fix now is to replace the propeller. It was good to know I could actually swap those engines while at sea. I was concerned the Honda’s 90 pounds of weight would be more then I could handle but I managed. There was some wind but just enough to maintain about 3 knots which meant it would have taken about 13-14 hours to cover the 40 miles. Seems like I learn something new every time I take this boat out.
Joe Wergers
Utopia
Fleet 7/Oceanside, CA
78 C25 FK/SR #381
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 08/06/2007 :  15:47:06  Show Profile
Good work Joe--just out of curiosity, what vintage is that Honda?
Edited by - Dave Bristle on 08/06/2007 15:51:11
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jerlim
Master Marine Consultant

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USA
1484 Posts
Response Posted - 08/06/2007 :  16:00:48  Show Profile
Wow - you have a kayak AND a dinghy w/ an OB on a C25? Were you alone or was anyone else around to lend a hand (literally!)?
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 08/06/2007 :  23:43:12  Show Profile
The Honda is a 1999 8HP long shaft. I was not alone. I had my wife, two 16 year old girls and two 12 year old girls. When the prop gave up it was about 5:00 AM and the girls were all asleep down below. My wife was topsides with me and provided moral support. The dinghy was deflated and stored in its bag on the fore deck. I keep its outboard attached to a board mounted on the stern pulpit. The kayak was in tow behind the boat. The dinghy is for reaching shore and the kayak is for play. Sure I could get by with one or the other but where's the adventure in that.
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 08/07/2007 :  09:46:00  Show Profile
Joe,

Don't throw away your prop. I believe the rubber hub can be replaced.

My Mercury doesn't have a shear pin, only the rubber hub, and if I remember correctly, my old Johnson was sheer pin-less too. A few years ago, I bought another prop which I now keep aboard as a spare if the rubber hub ever lets loose on the working prop.
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 08/07/2007 :  09:52:25  Show Profile
Thanks Don. It looks like Dixie Marine sells new props for about $60 so I'll have to compare the price of a repair against a new one. A spare is definitely on my list now. Breezes are relatively light here in the summer and I do a lot of motoring on cruises up and down the coast. The second prop would be good insurance.
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jerlim
Master Marine Consultant

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USA
1484 Posts
Response Posted - 08/07/2007 :  10:40:35  Show Profile
Cool idea to tow a kayak
Edited by - jerlim on 08/07/2007 10:41:05
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 08/07/2007 :  11:27:52  Show Profile
A bit of advice on towing a kayak. My kayak is the enclosed type where you sit on top, not inside it, therefore there is no way for water to enter it. If you tow a kayak that can collect water you are susceptible to having it capsize and fill with water. It might be okay to tow a short distance in calm waters with the open type but not in open water. A good stout line is required in either case. 3/8" or better.
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stampeder
Master Marine Consultant

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1608 Posts
Response Posted - 08/07/2007 :  22:44:50  Show Profile
Interesting way to get to know propellers.
Thanx for the story. It got me to questioning whether or not I have a sheer pin onboard.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.