The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Search

Notices

Random Quote: Turnin an burnin
Reply
 
Thread Tools Search this Thread
Old 12-19-2007, 05:20 AM
  #1    
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 12,602
Default How much tongue weight on the trailer?

What is the rule of thumb for tongue weight when the boat is on the trailer? Servicing dealer told me I had about 150lbs too much but wants $500 to adjust since they have to cut U bolts. What problems will it cause if I dont do it?
__________________
Judge Yachts 27 Chesapeake w/ 225 Honda
iFishMD is offline   Reply With Quote
Old 12-19-2007, 05:29 AM
  #2    
Senior MemberCaptains Club Member
 
Join Date: Jul 2006
Posts: 225
Default RE: How much tongue weight on the trailer?

That is a simple fix. Usually you can loosen the U-Bolts that hold your winch stand in place, slide the winch stand back until your tongue weight, when you load the boat, is approximately 10% of the total boat weight. Then retighten your U-Bolts. The only reason to cut the U-bolts is if they are very rusty and can't be loosened.
FL-fisher is offline   Reply With Quote
 
Old 12-19-2007, 05:32 AM
  #3    
Senior Member
 
Join Date: Jan 2006
Location: Sunny florida
Posts: 10,832
Default Re: How much tongue weight on the trailer?

150# too much doesn't sound bad. You want about 10% of the total trailer weight. Too little weight causes towing problems like fishtailing. It's hard to have too much, unless your bumper is dragging the ground.
billinstuart is offline   Reply With Quote
Old 12-19-2007, 05:33 AM
  #4    
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 12,602
Default Re: How much tongue weight on the trailer?

I am afraid to move the boat back on the trailer in fear of losing the support of the rollers close to the transom. The servicing dealer wants to move the axles forward. The trailer is only 3 seasons old but bolts are showind some corrossion. Boat tracks true now without much sway. Will it cause me problems to keep it as is?
__________________
Judge Yachts 27 Chesapeake w/ 225 Honda
iFishMD is offline   Reply With Quote
Old 12-19-2007, 05:33 AM
  #5    
Senior MemberCaptains Club Member
 
Join Date: May 2004
Location: Banner Elk, N.C.
Posts: 8,785
Default Re: How much tongue weight on the trailer?

I believe 10% of trailer weight, max. would be within the range. Check your hitch and receiver rating for the maximum tounge weight. What are you towing that Maycraft with. I tow a 23' Maycraft/Center Console with a 3/4 Ton Diesel and have a hitch and receiver rated for 500# tounge weight. I think that's what it is rated for. Never had any problem. Don't even know the boats back there most of the time.

RR
__________________
"....that of those men who have overturned the liberties of republics, the greatest number have begun their career by paying an obsequious court to the people; commencing demagogues, and ending tyrants."
Rough Rider is offline   Reply With Quote
Old 12-19-2007, 05:34 AM
  #6    
Senior Member
 
Join Date: Sep 2003
Location: Winston Salem, N.C.
Posts: 372
Default Re: How much tongue weight on the trailer?

Most likely, none. I believe the general rule is around 10% or a little less. He's going to have to move that axle a foot or more to get that 150 lbs. If you are towing ok, I'd leave it alone. Just my 2 cents.
__________________
Ron
We sleep safely in our beds because rough men stand ready in the night to
visit violence on those who would harm us." George Orwell
lakebiker is offline   Reply With Quote
Old 12-19-2007, 05:39 AM
  #7    
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 12,602
Default Re: How much tongue weight on the trailer?

I tow with 2 trucks. Both are 1/2 ton chevies. (my silverado w/ 6800lb tow rating and wife's suburban w/7700lb tow rating). They said I was at 6100lbs on their scale and like 750# tongue weight. I dont tow often as I wet slip much of the year but make a couple of trips a year on the trailer.
__________________
Judge Yachts 27 Chesapeake w/ 225 Honda
iFishMD is offline   Reply With Quote
Old 12-19-2007, 05:53 AM
  #8    
Senior MemberCaptains Club Member
 
Join Date: May 2004
Location: Banner Elk, N.C.
Posts: 8,785
Default Re: How much tongue weight on the trailer?

I would agree with the other posters in that if you are not having problems with the trailer over the last three years I wouldn't be too concerned about it, especially if you are only towing a short distance a few times a year. What is the total weight of the boat, trailer, gear, fuel, etc. when fully loaded? Also what is the rating of the hitch and receiver?
__________________
"....that of those men who have overturned the liberties of republics, the greatest number have begun their career by paying an obsequious court to the people; commencing demagogues, and ending tyrants."
Rough Rider is offline   Reply With Quote
Old 12-19-2007, 06:04 AM
  #9    
Senior MemberCaptains Club Member
 
Join Date: Nov 2002
Location: West Va/Fl/PA
Posts: 5,897
Default Re: How much tongue weight on the trailer?

If working don't bother unless tires are wearing or bearings get hot
Eyehooker is offline   Reply With Quote
Old 12-19-2007, 06:25 AM
  #10    
Senior Member
 
Join Date: Feb 2007
Location: Maryland
Posts: 199
Default Re: How much tongue weight on the trailer?

I think the rule of thumb for boat trailers is 5% to 7% of total load for tongue weight (other trailers are closer to 10%). That puts you at double the thumb rule, so the concern makes sense. But if you're not experiencing the problems that arise from excessive tongue weight, then it may be more of a judgement call.

Looks like Venture has a link on its site that's from a third party on the matter: http://www.venturetrailers.com/images/sup-weight.gif.
__________________
2008 Key West 186 CC, Yamaha F115, Lowrance X107C DF
Aerocraft67 is offline   Reply With Quote
Old 12-19-2007, 06:30 AM
  #11    
Senior MemberCaptains Club Member
 
Join Date: Sep 2006
Location:
Posts: 3,390
Default Re: How much tongue weight on the trailer?

Check the rating on your tongue jack too. Unless you asked, they probably stuck a chintzy one on there when you bought the trailer.
__________________
DrJim is offline   Reply With Quote
Old 12-19-2007, 06:40 AM
  #12    
Senior MemberCaptains Club Member
 
Join Date: Jan 2006
Location: annapolis md, pamlico river nc
Posts: 915
Default Re: How much tongue weight on the trailer?

B-Faithfull,

Take your rig to the truck scales at Millersville and weigh it. They are real user friendly--give them a call and find out when they are least busy.

The scale consists of 3 weighing pads--one for the trailer, one for the tow-vehicle drive wheels, and one for the stearing wheels. Set your rig up on the scales with the trailer wheels on one pad, and the tow vehicles rear wheels on the 2nd; detatch and drive off; the weight of the stand will be pretty close to tongue weight. As has been said, 5-7% is the bomb.

This way you will know what weighs what. You will probably be surprised at what everything weighs.

Am towing with an Explorer and it depresses the vehicle rear too much--I've got about 250#, which is really not optimum. (It works because I don't have surge brakes, however. But, I'm buying a truck!)

If you need to move the post, over-torque the u-bolt nuts till they break and replace them. You may end up hanging off the back of the tow more than you want.
us42449 is offline   Reply With Quote
Old 12-19-2007, 06:41 AM
  #13    
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 12,602
Default Re: How much tongue weight on the trailer?

My tongue jack broke right away. I have a heavy duty one on there now. The original one was junk! I will have to check the hitch rating. I just use the class III hitch receivers that came on the trucks as they both have the tow packages. My silverado squats more than the suburban but the suburban has the lower gear ratio and heavier suspension package. However I am under the tow ratings for each vehicle.

My tow trips consist of a trip to the CBBT once a year (200 miles each way) and maybe a trip to the ocean (100-150 miles each way). I only tow over Maryland's eastern shore which is flat as a pancake. In 3 seasons I have less than 2000 miles on the trailer.

Trailer is a 5 Star with disk surge breaks and torsion axle...
__________________
Judge Yachts 27 Chesapeake w/ 225 Honda
iFishMD is offline   Reply With Quote
Old 12-19-2007, 07:19 AM
  #14    
Senior MemberCaptains Club Member
 
Join Date: Feb 2002
Location: North Charleston, SC USA
Posts: 21,913
Default Re: How much tongue weight on the trailer?

Quote:
Aerocraft67 - 12/19/2007 9:25 AM

I think the rule of thumb for boat trailers is 5% to 7% of total load for tongue weight (other trailers are closer to 10%). That puts you at double the thumb rule, so the concern makes sense. But if you're not experiencing the problems that arise from excessive tongue weight, then it may be more of a judgement call.
That's what many trailer manufacturers recommend. Closer to 5% for multi axle trailers, 7% for single axle trailers. If you have excess tongue weight you also have more weight on the trailer front axle than the rear.

Excess tongue weight can lower the rear of the tow vehicle and raise the front. This results in a reduction of front axle braking and steering and headlights pointing upward. Not good.

If you're towing a small trailer with a big vehicle this may not be a problem. If you're towing a big trailer with a smaller vehicle, it could be.

To adjust tongue weight when the boat cannot or should not be moved on the trailer, the axles are moved. U bolts should not have to be cut, penetrating oil and a good wrench should do the job. Even if they have to be cut, a few seconds with a torch or a few minutes with a hacksaw will do the job and replacements are only a few dollars.

I adjusted both my winch stand and my axles to achieve the desired tongue weight. I did it myself with the boat on the trailer. Piece of cake.

http://www.shorelander.com/pages/forum/f_trstep3.html
__________________
Ron
2000 Camano Troll

HIGH COTTON
http://www.picturetrail.com/gallery....9&gid=19068769
rwidman is offline   Reply With Quote
Old 12-19-2007, 09:17 AM
  #15    
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 12,602
Default Re: How much tongue weight on the trailer?

wow if at 6100 and the 7% rule, I should have 427lb of tongue weight compared to my over 700lbs currently. That puts me at 300lbs over tongue weight. The trailer place I had my service done said I should have around 500-525lbs...
__________________
Judge Yachts 27 Chesapeake w/ 225 Honda
iFishMD is offline   Reply With Quote
Old 12-19-2007, 09:31 AM
  #16    
Senior MemberCaptains Club Member
 
Join Date: Feb 2002
Location: North Charleston, SC USA
Posts: 21,913
Default Re: How much tongue weight on the trailer?

Quote:
B-Faithful - 12/19/2007 12:17 PM

wow if at 6100 and the 7% rule, I should have 427lb of tongue weight compared to my over 700lbs currently. That puts me at 300lbs over tongue weight. The trailer place I had my service done said I should have around 500-525lbs...
If you have a 6100 lb weight, you certainly have a multi axle trailer and should be looking towards 5%. That's 305 lb. Let's just say somewhere around 325 just to be safe. Go to the trailer manufacturer's websites and get their recommendations. These are from engineers and designers of the trailers. Your trailer shop's recommendation may be based on less engineered and tested information.
__________________
Ron
2000 Camano Troll

HIGH COTTON
http://www.picturetrail.com/gallery....9&gid=19068769
rwidman is offline   Reply With Quote
Old 12-19-2007, 09:45 AM
  #17    
Senior Member (used to be B-Faithful)Captains Club MemberPLEDGER
 
Join Date: Dec 2002
Location: Annapolis, MD
Posts: 12,602
Default Re: How much tongue weight on the trailer?

I would rather error on the heavier tongue weight side to prevent sway and due to the fact that both my tow vechicles are 2wd with locking differentials. Still I am way over. I will pony up soon as I want them ensure the axles are straight and aligned properly. thanks for the feed back fellas.
__________________
Judge Yachts 27 Chesapeake w/ 225 Honda
iFishMD is offline   Reply With Quote
Old 12-25-2007, 02:34 PM
  #18    
Senior Member
 
Join Date: Jun 2004
Posts: 717
Default Re: How much tongue weight on the trailer?

10% is prefered and I have run 15% with a more than capable tow vehicle (Dodge dually diesel) and way less than max (for the truck) in the ball. When I tow with the gooseneck, I've got about 4000# on the ball, albeit much different location but still on the rear axle. Too little tongue weight fives y9ou instability (fishtailing or wha-toosie swaying) but too much tongue weight is really more a function of your tow vehicle.
__________________
USCG Master 100GT
Captain Nimrod is offline   Reply With Quote
Old 12-25-2007, 04:46 PM
  #19    
Senior MemberCaptains Club MemberPLEDGERPLEDGER
 
Join Date: Jan 2006
Location: Maui and SoCal
Posts: 7,106
Default RE: How much tongue weight on the trailer?

While too little tongue weight contributes to excess swaying and scary towing, too much toungue weight only drops the rear of the tow verhicle. Certainly way too much might lift the front wheels off the ground, but if your extra 150 pounds is not causing the rear to ride too low, leave it alone. More tongue weight makes for better traction on the ramp.

As far as moving the boat on the trailer, I maintain that a decently constructed hull is not going to develop hook if it is not supported directly under the transom. Back in the days of popping ski boats out of molds with short or no stringers, some boats were so poorly made that there was a perceived problem with trailer support. But we see lots of applications where fiberglass is used for springs - like in Corvette suspension. Fiberglass is pretty dififcult to permanently deform without breaking it. When I set up a trailer, I make sure the boat's stringers are supported by the trailer. If I get support under the transom, great, but it is not a primary goal. So, if your bunks are properly lined up with the stringers, I would not worry if the transom overhangs a bit.

If it tows well, leave it alone.
__________________
Kern O.
kerno is offline   Reply With Quote
Old 12-25-2007, 07:27 PM
  #20    
Senior Member
 
Join Date: May 2003
Location: San Diego, Ca. USA.
Posts: 355
Default RE: How much tongue weight on the trailer?

I would go show this thread to your "dealer" What a joke to charge you 5 bills.
finlanderr is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
trailer tongue weight tower8 Trucks & Trailers 19 03-02-2009 05:35 PM
Trailer tongue weight question Osseous The Boating Forum 39 04-20-2007 09:42 PM
Trailer Tongue Weight aubrey The Boating Forum 34 11-17-2005 10:58 AM
More trailer tongue weight? feralcat The Boating Forum 29 10-29-2003 07:43 PM
Trailer tongue weight Mike Carroccio The Boating Forum 15 02-04-2003 09:18 AM

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0