H26 Oil Canning on trailer

gpsguy

.
Apr 4, 2006
4
Hunter H26 Colorado
I am the proud and satisfied owner of a 1994 Hunter H-26. Hull ID HUNF0087L394. I had to leave it on a Hunter trailer for 4 years. It has "oil canned" on both side of the hull at the front bunk mounts about 1" to 1 1/2" deep about the size of a dinner plate. Should I be concerned? Is a repair needed? How can I prevent this other than the obvious "Sail it more often"? I have searched the forums and have found some posts. Any replies will be greatly appreciated.
 

Kermit

.
Jul 31, 2010
5,681
AquaCat 12.5 17342 Wateree Lake, SC
Sounds like Crazy Dave could help with this.

I saw your profile. I bet that downstream sail is a blast!
 

gpsguy

.
Apr 4, 2006
4
Hunter H26 Colorado
Yeah, I was hoping that maybe Crazy Dave would make a comment. I discovered this last night (twilight) and just took another look. There are several more running down the port side along the bunkboard. Starboard is minimally impacted.
 
Jun 8, 2004
10,456
-na -NA Anywhere USA
gpsguy;

Oil canning is caused by the bunk boards on the trailer not conforming to the hull of the boat generally at the end of the bunks. Take photos and send them to me with notation H26 along with location and phone contact. I will call you. It will take a lot to say and with my hands hurting which I think arthritis, writing or typing is not my cup of tea.
davecondon@mindspring.com
 
Jun 8, 2004
10,456
-na -NA Anywhere USA
Update on this. I have received photos and there is a problem. I suspect the following.

Only three supports vs. should be four for the bunk boards
Appears bunk boards too short
Possible current bunk boards not positioned correctly.

I need help folks before calling this fellow. Can you on the 26 trailer, not the 260 trailer, confirm there are four bunk board supports and the length of the actual bunk board itself. When looking, I immediately came to the above conclusions or a combination thereof but again fellow sailors, just a couple questions that I need answers to please to confirm my suspisions . Thanks.
 
Jul 17, 2014
112
Hunter 23.5 Chesapeake Bay
Well, if it helps, I have the smaller 23.5 and my trailer has 4 bunk supports each and the bunks are 12 foot 2x6"s.
 
Aug 31, 2013
62
Hunter 26 Saylorville-Des Moines
I sent Dave pictures of my 1994 H26 trailer per his separate post/request. I hope to get out there today and, if so, can take more measurements or pictures if that helps.
-Jeff
 
Oct 2, 2012
14
Hunter 26 Ventura, CA
Dave, We have a 1995 Hunter 26 trailer. It has 3 bunk supports per side and 12 ft. 2X8 bunks. We had to replace the original bunks as they were oil canning the boat. New 2X8 bunks solved the problem. We have thought about some additional bunks but not sure where the boat would support them. Always appreciate your advice.
 
Jun 8, 2004
10,456
-na -NA Anywhere USA
It took me some time to remember. The newer Hunter 260 has four supports due to a ticket received by an owner in Texas if I recall. The Hunter 26 and early 260 boats have three support and that is ok. The bunk board is 2 X 12 carpeted. Thanks goes to Ojaisailor and Jeffclown for taking their time to respond to my request for information. Thank you gentlemen.

Looking at the photos sent with information from GPSGUY, I will be calling to go over my findings as I am taking this from an investigative standpoint. At one time I also use to be an insurance investigator for several states and was quite good which is why I say a photo is worth a thousand words. From evidence, knowledge and experience, there are a few things to discuss.

I have seen water stored on the trailer with water ballast still in the tank. I emptied those quickly and solved that issue.

The next issue can be the stalks or supports for the bunk boards not either high enough or too low causing or exerting pressure on the hull where the other supports are. I use to insure the stalks were high enough so the centerboard would not be pressed down onto the keel tray in the raised position while on the trailer. I would then raise the stalks/supports on either the rear or front at the same height. I would go to the other end and raise those and again at the same height. The middle supports were the last. I would then raise until the middle of the bunk board rest against the hull. At that point, I would check the four ends of the two bunk boards to make sure they were not going or protruding up into the hull. A road test so the boat would settle down and then a recheck with adjustment if needed.

With this issue from GPSGuy, I also noted depressions in the hull not at the ends of the bunk boards nor at the center support area which could be another cause. When a boat is taken off the trailer with a travel lift, always insure the straps are six inches wide, not two inches, as I have seen that with the aftermath. Always tie the straps together to insure the straps will not slip off paticuraly the newer Hunter 260 trailers with the four supports. When lifted and placed on stands, it is a must to insure four stands on each side are used and tied/chained together in pairs so the stands will not slip or kick out.
Also, rap the hull for the thickest part of the hull to place the boat on the stands and gents, no matter what is said, use carpert or some cover on the pads of the stands, not pieces of carpet on the ground with all the rocks and so forth. Adjust the screw pads so they will not indent the hull. If indenting the hull, suggest moving that stand to a different area that is thick as that area may be too thin for supporting the weight.

Remember this is a water ballast hull where the weight of the entire boat is on the bunk boards or stands as a typical fixed keel boat is different with the weight of the boat on the keel with stands just supporting to keep it from tilting over.

Ok, I may have been a little to lengthly, but as a former top dealer for the water ballast and my involvement, I wanted to educated you on what I know.

dave condon
 
Jun 8, 2004
10,456
-na -NA Anywhere USA
Krusty;

You do contribute you old rascal and when ever you can help, you get the atta aboy award. You do not realize but many like hearing your impute which I have heard thru the grapevine.
 

Kermit

.
Jul 31, 2010
5,681
AquaCat 12.5 17342 Wateree Lake, SC
You do not realize but many like hearing your impute which I have heard thru the grapevine.
"IMPUTE" verb: Represent (something, especially something undesirable) as being done, caused, or possessed by someone; attribute. "the crimes imputed to Richard"

And we all thought you were going to give him a compliment.
 
Jun 8, 2004
10,456
-na -NA Anywhere USA
Do you know what the term gigging is you rascal. I barely past englalish. Me thinks I was complimenting him. Oh fiddlesticks.
 
Jul 17, 2014
112
Hunter 23.5 Chesapeake Bay
"IMPUTE" verb: Represent (something, especially something undesirable) as being done, caused, or possessed by someone; attribute. "the crimes imputed to Richard"
Hey, I resemble that remark! :doh:

Just joshin' with ya Dave, need my daily "atta boy" 's :D