Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 15-04-2013, 17:10   #1
Registered User
 
the_alpine's Avatar

Join Date: Dec 2011
Location: st petersburg, fl
Boat: O'Day 302
Posts: 263
Tohatsu mounting bolt stripped

One of the bolts that screws down to clamp the outboard to the transom on my dinghy has a stripped hole. Not sure how or why it happened, but it happened. I currently have it lashed down, but was hoping the wisdom of this forum could supply a solid fix. Im also in the Bahamas, so not a ton of facilities...

The easiest I can think of is to find a clamp from a hardware store and somehow clamp over/around it.

It cant be through-bolted cuz I need to be able to stowe it on the mothership when underway.

Discuss.......

__________________

__________________
the_alpine is offline   Reply With Quote
Old 15-04-2013, 17:24   #2
Registered User
 
Zanshin's Avatar

Join Date: Feb 2007
Location: Caribbean
Boat: Jeanneau 57
Posts: 1,621
Re: Tohatsu mounting bolt stripped

I'm in a similar position, both mine are frozen and will probably need to be drilled out and replaced with a larger thread and larger bolts. I've just been placing the outboard on the back and haven't gone more than a fast idle. On the positive side, a tank of gas now lasts seemingly forever.
__________________

__________________
-Zanshin (SV Zanshin)
Zanshin is offline   Reply With Quote
Old 15-04-2013, 17:27   #3
Registered User

Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
Re: Tohatsu mounting bolt stripped

Depending on how much "meat" is left where the original clamp was you could drill and tap the next size up and use a standard bolt in place of the original clamp. A Heli Coil might work but they are not the best when continually screwing and unscrewing a fastener.
__________________
perchance is offline   Reply With Quote
Old 15-04-2013, 17:35   #4
Registered User
 
sww914's Avatar

Join Date: May 2009
Location: Punta De Mita
Boat: Vagabond 39 Hull # 1
Posts: 1,842
Re: Tohatsu mounting bolt stripped

The best fix would be t have the hole welded and re-tapped. A Time-Cert has better chances than a helicoil. Or you could drill it out as suggested and tap it for a larger bolt.
__________________
Steve
http://www.landfallvoyages.com
sww914 is offline   Reply With Quote
Old 15-04-2013, 17:52   #5
Registered User

Join Date: Nov 2011
Location: Montegut LA.
Boat: Now we need to get her to Louisiana !! she's ours
Posts: 3,421
Re: Tohatsu mounting bolt stripped

If ya go to the nearest Cat dealer when ya get home. You can get some heli-coils That will STAY in the bracket. They are different then most folks have ever seen as they have a method of stakeing them in place and they never move or get loose ! Just something I picked up a long while back when I needed to replace some bolt holes in aluminum!
__________________
Bob and Connie
bobconnie is offline   Reply With Quote
Old 15-04-2013, 19:27   #6
֍֎֍֎֍֎֍֎֍֎

Cruisers Forum Supporter

Join Date: Apr 2006
Posts: 13,037
Re: Tohatsu mounting bolt stripped

Cheap: carriage bolt and wing nut.

Or have it welded up and retapped. Or have a plate lapped over the hole, with a suitably tapped hole in the plate.

Then there's always industrial strength velcro.<G>
__________________
hellosailor is offline   Reply With Quote
Old 15-04-2013, 21:37   #7
Registered User
 
sww914's Avatar

Join Date: May 2009
Location: Punta De Mita
Boat: Vagabond 39 Hull # 1
Posts: 1,842
Re: Tohatsu mounting bolt stripped

Quote:
Originally Posted by bobconnie View Post
If ya go to the nearest Cat dealer when ya get home. You can get some heli-coils That will STAY in the bracket. They are different then most folks have ever seen as they have a method of stakeing them in place and they never move or get loose ! Just something I picked up a long while back when I needed to replace some bolt holes in aluminum!
That sounds like a Time-Cert. They're solid instead of a spring so they stay together. Actually, it's not a Time-Cert, it's the same thing but a different name with just enough differences for one to get past the patents of the other. We used them a lot (both types) on the magnesium cases from the '74-'77 911 engines that were known for pulling the head studs out of the magnesium, but I can't remember the name of the other. I always liked the one that you recommend better but the Porsche parts people stocked Time-Certs so that's what we usually used.
__________________
Steve
http://www.landfallvoyages.com
sww914 is offline   Reply With Quote
Old 15-04-2013, 22:57   #8
Senior Cruiser

Cruisers Forum Supporter

Join Date: Nov 2005
Location: Tasmania
Boat: VandeStadt IOR 40' - Insatiable
Posts: 2,317
Images: 91
Re: Tohatsu mounting bolt stripped

my vote is for helicoil insert. Buy the kit - it will include the right size drill, the right size tap and the tool for fitting the insert
__________________
Weyalan is offline   Reply With Quote
Old 16-04-2013, 08:12   #9
Registered User
 
the_alpine's Avatar

Join Date: Dec 2011
Location: st petersburg, fl
Boat: O'Day 302
Posts: 263
Thanks guys, welding and tapping is definitely the right way, but helosailor had a good thought. Instead of a carriage bolt, I could just put a wing nut and washer on the existing bolt.

My tools are limited, so simple is best.
__________________
the_alpine is offline   Reply With Quote
Old 16-04-2013, 10:30   #10
Registered User
 
the_alpine's Avatar

Join Date: Dec 2011
Location: st petersburg, fl
Boat: O'Day 302
Posts: 263
So I cobbled together some nuts and bolts and have a pretty good temporary fix. As an added bonus, I'm pretty sure I get on plane faster now.


Click image for larger version

Name:	image-2575436575.jpg
Views:	134
Size:	160.2 KB
ID:	59304
__________________
the_alpine is offline   Reply With Quote
Old 16-04-2013, 15:06   #11
Registered User

Join Date: Apr 2013
Posts: 2
Re: Tohatsu mounting bolt stripped

where was the beautiful picture of the crystal water taken?
__________________
mikevee is offline   Reply With Quote
Old 16-04-2013, 16:30   #12
Registered User
 
the_alpine's Avatar

Join Date: Dec 2011
Location: st petersburg, fl
Boat: O'Day 302
Posts: 263
Mike- the pic was taken here at egg reef near Spanish wells.
__________________
the_alpine is offline   Reply With Quote
Old 17-04-2013, 18:29   #13
Senior Cruiser
 
bstreep's Avatar

Cruisers Forum Supporter

Join Date: Oct 2007
Location: San Antonio, TX/Port Aransas, TX
Boat: 1990 Macintosh 47, "Merlin"
Posts: 2,274
Re: Tohatsu mounting bolt stripped

OK, why is this such a common problem? Our Mercury has similar problems - why do they put stainless bolts through an aluminum casting? Ugh. We use a stainless carriage bolt on ours. Mercury has had the new ones backordered for 6 months.
__________________
Bill Streep
San Antonio/Port Aransas, TX
bstreep is offline   Reply With Quote
Old 17-04-2013, 18:33   #14
Registered User

Join Date: Dec 2009
Posts: 3,016
Images: 4
Like many things on a boat, you need to grease those threads regularly. The manufacturer does not have many options for that problem. Grease is easy ... But discipline is evasive for all of us.
__________________
daddle is offline   Reply With Quote
Old 22-04-2013, 08:25   #15
Registered User
 
the_alpine's Avatar

Join Date: Dec 2011
Location: st petersburg, fl
Boat: O'Day 302
Posts: 263
Well, now the other one is about to strip, I can feel it. Dang it!

I'm sure they need more grease than they've had.
__________________

__________________
the_alpine is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:47.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.