changing tire on trailer with boat on trailer - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 15 Old 06-28-2012 Thread Starter
Senior Member
 
johnnyandjebus's Avatar
 
Join Date: Sep 2009
Location: Ontario
Posts: 426
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 6
 
changing tire on trailer with boat on trailer

Hello all
The tires on my trailer are old and need to be replaced. One in particular is really bad, a bulge on the inside side wall. I have the new tires but am concerned about swapping them. Reason being the boat is on the trailer. A Contessa 26, 5400 lb's. The trailer is a dual axle.



Two concerns;
1) Will the boat shift if I lift the trailer?
2) Where to I put the jack to lift the trailer? I don't want to load up the trailer in a weak spot.


Any thoughts?
Am I over thinking this?
Ideally I would like to replace both rear tires and leave the front two until the boat is off the trailer(next spring) the rear two are in worse shape than the front two.

Thanks,
John

"The more I know about people, the better I like my dog."
-- Mark Twain

"If you canít explain it to a six year old, you donít understand it yourself.Ē
--Albert Einstein
johnnyandjebus is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 15 Old 06-28-2012
Senior Member
 
fryewe's Avatar
 
Join Date: Dec 2004
Posts: 1,599
Thanks: 30
Thanked 51 Times in 51 Posts
Rep Power: 11
 
Re: changing tire on trailer with boat on trailer

I changed all four on my tandem axle trailer with almost 10K pounds of boat on it. T
fryewe is offline  
Quote Quick Reply Share with Facebook
post #3 of 15 Old 06-28-2012
Senior Member
 
Sabreman's Avatar
 
Join Date: Sep 2006
Location: Yeocomico River, VA
Posts: 1,643
Thanks: 3
Thanked 18 Times in 15 Posts
Rep Power: 10
   
Re: changing tire on trailer with boat on trailer

Lifting the trailer a few inches to change a tire won't shift the CG enough to topple the boat. At a marina that I worked at, we had a trailer similar to yours that we used to move boats around the yard. We (I) routinely jacked up boats to position the trailer beneath it. An axle broke once and you'd be amazed how far a trailer can tilt without the boat falling.

A picture of the trailer from the rear would be helpful, but I'd position the jack beneath the axle as close to the tire as possible. As I lifted the boat, I'd place wood blocks (vs. cinder blocks) beneath each corner at the rear of the trailer to stabilize it.

Sabre 38 "Victoria"
Sabreman is offline  
Quote Quick Reply Share with Facebook
post #4 of 15 Old 06-28-2012
Senior Member
 
leogallant's Avatar
 
Join Date: Jul 2011
Location: Greer, SC
Posts: 115
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
 
changing tire on trailer with boat on trailer

Yes, it takes a lot to shift the boat. We jacked up 11,000 lbs of boat on trailer to block up and take pressure off tires while we work on it in our yard.

When our friends brought it from their house to our yard, the trailer slipped and rolled back in their yard about 5 ft. until it finally bumped against wheel blocks. With 11,000 lbs rolling and then coming to an abrupt stop, they were freaking that the boat might slide right off the trailer! In fact, it only shifted 1 inch, amazing!

Leo
Journey to Charleston on Ubiquitous

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Steve's Ubiquitous Blog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
leogallant is offline  
Quote Quick Reply Share with Facebook
post #5 of 15 Old 06-28-2012
Senior Member
 
fryewe's Avatar
 
Join Date: Dec 2004
Posts: 1,599
Thanks: 30
Thanked 51 Times in 51 Posts
Rep Power: 11
 
Re: changing tire on trailer with boat on trailer

...sorry...hit the wrong key...continuing...the boat won't shift. Put the jack under the axle of the tire you are changing and use a short two by six on top of the jack to distribute the weight.
fryewe is offline  
Quote Quick Reply Share with Facebook
post #6 of 15 Old 06-29-2012
Senior Member
 
tommays's Avatar
 
Join Date: Sep 2008
Posts: 4,296
Thanks: 1
Thanked 30 Times in 30 Posts
Rep Power: 7
 
Re: changing tire on trailer with boat on trailer

Let's just the boat movers trailer LOST the whole wheel moving Seafever this spring and it lived

1970 Cal 29 Sea Fever

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
tommays is offline  
Quote Quick Reply Share with Facebook
post #7 of 15 Old 06-29-2012
Barquito
 
Barquito's Avatar
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 2,246
Thanks: 0
Thanked 26 Times in 26 Posts
Rep Power: 8
 
Re: changing tire on trailer with boat on trailer

If you think about it, the trailer will be making some pretty big swings going over bumps on the road. OTOH, dealing with stuff that heavy, should have a little pucker-factor.

Bristol 27
Cirque
Barquito is offline  
Quote Quick Reply Share with Facebook
post #8 of 15 Old 06-29-2012 Thread Starter
Senior Member
 
johnnyandjebus's Avatar
 
Join Date: Sep 2009
Location: Ontario
Posts: 426
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 6
 
Re: changing tire on trailer with boat on trailer

Thanks for all of the replies, I plan to tackle it this weekend as well as provide a pic from the rear.

John

"The more I know about people, the better I like my dog."
-- Mark Twain

"If you canít explain it to a six year old, you donít understand it yourself.Ē
--Albert Einstein
johnnyandjebus is offline  
Quote Quick Reply Share with Facebook
post #9 of 15 Old 06-30-2012
Reward for lost Kraken!
 
hellosailor's Avatar
 
Join Date: Apr 2006
Posts: 11,447
Thanks: 5
Thanked 131 Times in 128 Posts
Rep Power: 11
   
Re: changing tire on trailer with boat on trailer

John-
Yes the boat will shift, but it does that every time the trailer tilts on the road anyhow. I wouldn't stand under it but I would expect it to stay put.
WRT jacking the trailer, was it professionally built? If so, see if the maker can tell you the jacking points they recommend. If not, look for strong points near the axle, perhaps between the tires, or under the axle/suspension.

What I would most strongly suggest is buying a pair of jack stands that are rated well above the combined weight of the loaded trailer. Once you have one wheel up, about an inch off the ground, insert a jack stand just outboard of that wheel. Now repeat with the other wheel, so there are a pair of jackstands taking all the weight.
Assuming you loosened the lug nuts just a little beforehand, you can now spin 'em off, one tire at a time, and replace them. The tires should probably be chocked--all four of them, both forward and rear--to make sure the trailer doesn't shift while jacking.
As to the jacking points...BMW finally stole my idea, get a 3" copper pipe cap, find the jacking points, epoxy or 5200 the cap to each jacking point so now the jack pretty much has to be centered in the right place. Or, at least gob on some blaze orange paint to make it real obvious for next time.
And of course, you'll want to store those jack stands somewhere on the trailer. If you don't have a box of some kind attached to it already.

This is also the perfect time to install a Grease Buddy on each bearing, or at least, re-lubricate and inspect them.

If jacking, chocking, all that stuff is news to you? Even if you don't have an auto club membership, it might pay to have someone in the tow business top by, at their convenience, to show you just how to do it. If you feel any uncertainty about it--there's nothing like seeing it done the right way first. $20 and a cold six, someone ought to be willing to stop by when things are slow.

And if you put just a dab of antiseize on each wheel stud before you put the lug nuts back on? Lasts over ten years, and you'll never have a frozen lug nut again. You should, btw, also be using a torque wrench to put on lug nuts.
hellosailor is offline  
Quote Quick Reply Share with Facebook
post #10 of 15 Old 06-30-2012
Senior Member
 
overbored's Avatar
 
Join Date: Oct 2010
Location: Dana Point, Ca
Posts: 1,165
Thanks: 1
Thanked 61 Times in 61 Posts
Rep Power: 5
 
Re: changing tire on trailer with boat on trailer

wow, lets see how complcated we can make changing a tire. Loosen the lug nuts on one wheel a 1/2 turn then just put the jack under the axle and raise the wheel off the ground. remove the wheel and install the new one. what do you think happens if you get a flat tire. the boat will not tip over. half of the weight of the boat is sitting low on the trailer. tandem axle trailers are designed to support the weight with only one tire on the ground.

"FULL TILT II" 2011 BENETEAU FIRST 30
"FULL TILT" SOVEREL 33
"GOLD RUSH" PRINDLE 16

Last edited by overbored; 06-30-2012 at 02:29 PM.
overbored is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help getting boat off trailer g0twind General Discussion (sailing related) 16 09-06-2013 03:02 PM
changing bunk supports with spirit 23 still on trailer Southron Spirit North American Yachts 2 03-31-2012 05:53 PM
Trailer tire winterization? kwaltersmi Gear & Maintenance 4 10-29-2007 10:44 PM
Trailer Boat ilnadi Boat Review and Purchase Forum 6 06-17-2004 03:56 AM
Looking for trailer for 23'' boat decatur General Discussion (sailing related) 4 01-10-2002 06:10 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome