05/01/2007 04:21:04 PM
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BananaTom
Admiral
Posts: 968
Joined: 12/05/2006
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I have twin 350 Crusaders in my 1989 Gibson and need to limit the speed to 2200 rpm's. The boat runs thirty miles an hour at 4000 rpms. It is two fast.
I have tried to limit by the rpms off the coil through MSD, but they can only limit it to 3000 rpms.
Any Ideas??
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Banana Tom
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05/01/2007 05:57:55 PM
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LongJohn
Member
Posts: 123
Joined: 11/13/2004
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Tried pulling back on the throttles? Works for me.
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Harbor Master 47
Watts Bar Lake - TN River
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05/01/2007 07:14:49 PM
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BananaTom
Admiral
Posts: 968
Joined: 12/05/2006
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I need to limit the speed while others operate the vessel. I know how to pull back, but the others that will operate the boat, will push them all the way forward, and I do not want them too.
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Banana Tom
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05/01/2007 07:45:14 PM
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BrokerDave
Member
Posts: 154
Joined: 08/15/2006
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This is a stretch, but most controls have 3 different spots you can
insert the cable end into. The inside spot will be the shortest
throw. The outside being longest. See if you can put them to the
inside shortening the cable throw. Might could change the length at
the engines too.
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Boatless at the moment
www.spboatsales.com
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05/01/2007 07:54:28 PM
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OLD HOUSEBOATER
Super moderator
Posts: 1520
Joined: 10/18/2002
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Unhook the secondarys in the carbs.
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OLD HOUSEBOATER
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05/01/2007 08:03:56 PM
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stmbtwle
Admiral
Posts: 2142
Joined: 04/22/2003
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Tell them THEY pay the fuel bill...
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Willie She's a tired old barge but she's paid for! http://s71.photobucket.com/alb...p;current=ef324993.pbw
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05/02/2007 12:40:23 PM
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ted655
Admiral
Posts: 424
Joined: 02/09/2007
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Some tachs have shift points that can be set. One of those + a
audio alert?
I bet there is a high tech gismo out there. Any of the hotrod forum
guys have an answer?
Anyway to "block" the forward limit of the control, so's to stop
the levers?
Last idea is to blank out the tach glass past the RPM limit. Tell
them, IF the indicator hand goes behind the cloud, "I breaka your
arm"!.
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05/02/2007 01:19:29 PM
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TheJudge
Admiral
Posts: 282
Joined: 05/01/2006
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Sounds like someone is renting out or lending out their boat. You will likely live to regret that.
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The Judge Rules
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05/02/2007 02:31:39 PM
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BananaTom
Admiral
Posts: 968
Joined: 12/05/2006
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I have been to the hot rods guys, that is where I started. But in marine rated equipment, they can only limit to 3000 rpm's. But I will investgate further based upon your suggestions Ted. Thanks
And thank you OLD HOUSBOATER, have passed your suggestion to the mechanic.
And yes, I am setting up a rental company here in Pensacola. PLan to place a Gibson and Holiday Mansion in service. Many others have done it successfully. I am trying to walk in their footsteps and provide this fun service here, as they do in almost all other bodies of water. We have been having fun so far. And if it comes to regret in the end, I can say, I tried. But I do not plan to fail.
First have the dream, second the plan, and third execute. After many years of the dream, lots of research to plan, I am executing. When we are up and running my website will be advertised with this magazine and the website is reserved in the name of www.Pensacolahouseboat.com.
Thanks for all the help.
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Banana Tom
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05/02/2007 04:04:16 PM
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MILLERTYME
Admiral
Posts: 253
Joined: 02/20/2006
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I would take the covers off my throttles and see if i could install a bolt or a block to limit the travel of the throttle levers. this would be easier than readjusting the cable linkage and would be easly removed if need be. I would also do it for reverse if these are the single, throttle/shifter style controls like the type Volvo uses. you can blow an engine in reverse just as easy as forward. You may also want to check on converting them to electronic controls, I have mathers and you can adjust both the limit of the throttle and add a pause when shifting between forward and based on engine RPM's, this could save you a v-drive or shaft coupling.
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UC FANS 1999, 52' Monticello - Miller Tyme Port of Aurora IN
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05/02/2007 05:13:19 PM
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Tonka
Member
Posts: 140
Joined: 02/12/2006
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How about a small piece of chain or cable at the carb. You might have to add a bracket to the manifold to attach the other end of it to. Advance throttles forward under load to whatever and attach chain or cable to limit advance, but allow return to idle. Maybe sorta' redneck, but it would be easy to remove so you could use it.
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1975 42' Gibson Standard
Lake Cumberland, Kentucky
Edited: 05/02/2007 at 05:14:10 PM by Tonka
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05/02/2007 08:29:02 PM
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ted655
Admiral
Posts: 424
Joined: 02/09/2007
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Why do you care , (within reason of course) how fast they go? It
seems the 3K limiter you've found will keep the engines safe
enough.
Every time we've rented, the deal was.... "find em full, leave em
full and the deposit covered the rest. AND, surely these boats will
have full insurance.
On one memorable week trip we went thru 4 tanks of gas and managed
to lose a chair, a mattress & 2 pillows overboard (night
windstorm, no alcohol; involved). When we tried to teach the
"newbee" some basic manuvers, he cut the big 1" bow line in
half.
The Judge is right, stuff will happen. Just be covered. Keep the
engines from over rev but let them buy the fuel. Your pro rating
the expected hours between overhaul/ replacement anyway, right?
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05/03/2007 01:13:08 AM
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enginetamer
Member
Posts: 87
Joined: 02/14/2007
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Hi Tom/ Wow! some of these questions get a lot of response in a hurry! You've heard about three different places to try--carburetor secondary, the adjustment screws on the controls, and some sort of electonic limiter. My vote would be for having your mechanic block the secondaries on the carbs, per 'the old houseboater's" suggestion--a 15 minute job. That would work in forward or reverse.
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lookin' for adventure and the next wild engine!
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05/03/2007 05:46:23 AM
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BananaTom
Admiral
Posts: 968
Joined: 12/05/2006
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I care allot about how fast they go. I need to make these boats as safe as possible Ted. 3,000 rpms is too fast for safe operation of this boat by bayou boys or anyone else. With this mentality maintained, the possiblity of personal injury is reduced, thus is negligence and thus is liabilty. And of course, full insurance is in place, as is the business plan for engine replacement, when needed. But no need to hurry that task.
I will have a meeting with the mechanic today and advise him of all these avenues on this thread. He is the one who is signning off on the mechanical operation for the entire boat, thus I have hired an expert to evaluate the safe operation of the boast, thus also limiting liabilty.
This is fun, thanks.
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Banana Tom
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05/03/2007 07:12:12 AM
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jimg
Admiral
Posts: 367
Joined: 08/13/2006
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Hey BT, that sounds great. I love it when people dream, plan
and execute. Good luck on the new business. Keep us informed on how
it is going.
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Riverliver
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05/03/2007 05:47:57 PM
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ted655
Admiral
Posts: 424
Joined: 02/09/2007
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After reading up on rev limiters, I found one that can be set in
100 rpm incriments, 100 thru 9000. But, they say not to use them as
govenors (which is really what you need).
So, I found this site
http://www.ipu.co.uk/engine_info.asp?id=164545
I wasn't being a smart ass Tom, I really thought 3K was in the
realm of safe operations' I ain't been a boy for quite some time.
Wish I was starting out again.
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05/04/2007 07:21:28 AM
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Pirate
Admin - super moderator group
Posts: 1346
Joined: 10/08/2002
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Since you are renting the boat. adjust the throttle cable setting till it will only go to half throttle. You may have to adjust at the throttle handle and the other end at thecarb. It will restrict and is an easy fix. It should adjust down to 2200 to 2400 rpm. Good luck.
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The pirate
Edited: 05/04/2007 at 07:23:21 AM by Pirate
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05/04/2007 07:52:05 AM
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Dave
Moderator
Posts: 182
Joined: 10/18/2002
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We found throttle blocks to be the easiest but I don't think it was necessarily the best way to go. Eventually we adjusted the cable throw at the engine so the controls had full range but at "full throttle" the speed was kept under control. How will 2200 rpm's affect your engine/carbs? Be sure it is done in a way that you'll know if a guest has tampered with it, they'll try any and everything.
As far as liability goes I would recommend you see an attorney, don't think your efforts at common sense and safety will absolve you of anything in court.
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05/04/2007 08:13:53 AM
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ted655
Admiral
Posts: 424
Joined: 02/09/2007
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Taking a trick from NASCAR, would a throttle plate restrictor under
the carbs work?
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05/04/2007 02:03:27 PM
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BananaTom
Admiral
Posts: 968
Joined: 12/05/2006
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Ted, did not think you were being a smart ___, just having a little fun. I hope to always be a boy, that is why I have toys, such as a Houseboat, Motorcycle, and so on. Thanks for all the thought, have passed all info on to mechanic.
Dave, thanks for the advise of legal review, it has occurred.
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Banana Tom
Edited: 05/04/2007 at 02:04:51 PM by BananaTom
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