A very LUCKY day!

[Black Magic]

Just a reminder here...... we caught this before disaster struck!:eek: :eek: :)

[Black Magic]

One broken completely......one on by 4 threads.......other two lowers both loose.... thinkin safety wire might be a wise idea.....

[rmh77]

you see what happens when you guys dont let me tighten stuff!!:D

[Black Magic]

Originally posted by rmh77
you see what happens when you guys dont let me tighten stuff!!:D

Actually " Mongo"..... I think it was you who OVER torqued them...:eek: :eek: :D :D

[Liqui-Fly]

Teach these boys not to have threads on parts that are bearing weight too. Get a bolt with some shoulder.

[Black Magic]

These actually had shoulders..... you can see the edge on the top port bolt.... still somewhat of a question how they got that far though..... they were new bolts & locknuts..... I can see how one might break ( ala Mongo style ).... but to have a "locknut" back off is still a ???? in my mind. Mind you, this was maybe on ten total hours of running...... I guess Lake Tarpon is living up to it's name:eek: :eek:

[Liqui-Fly]

But it looks pretty stubby. What Mongos torque elbow set at 550??

[Gordie Miller]

Most hardware nuts are NOT G8, they must be special ordered from a fastener supplier. Your chain is only as good as the weakest link. I see guys use G8 bolts with crap nuts all the time. You must use all G8 for it to work.

[Liqui-Fly]

Guys that run in Salt water can't, shouldn't, and/or don't like to use grade 8 bolts.

David

[Black Magic]

Yeah......

Mongo gets confused sometimes...... he still thinks Nm stands for "needs more"......:eek: :eek: :D :D :D

[Black Magic]

Merc 280 / 15" ...... loosened bolts holding ECU..... ignition coils.....and a couple others. Going to look deeper into this.:cool:

[rmh77]

Thats it nothing leaves LTB with out me tightning it first!! You guy are going to get yourselves killed!

[Liqui-Fly]

Hope it isn't a crook.

Mongo funny

[Raceman]

Just goes to show how important it is that we check all this stuff every time we run it. I wonder how many people who've lost skegs could've prevented it with a close examination before every time out. I've seen a couple of mid sections break around exhaust relief holes too. I'd be willing to bet they showed cracks before they failed completely.

[RB in NM]

It does look like the bolts shoulder would only be long enough to pass thru the motors' clamp, not the plate too.

You mentioned lock nuts. I personally shy away from the Nylock type anymore. My way of thinking is with the nylon inserts, you don't have the metal to metal contact as you would from a full metal nut and bolts' contact surface. I also try to double nut were possible.

Glad you caught that when ya did, nobody needs a screaming madly motor tossed up in the back of their bote.
Senn some real fugly pictures of a couple guys that got chewed up bad by the motor coming back up into the boat with em.....FUGLY chit...

RB

[mendo]

I would use fine thread too. That course thread is harder to get tight without overtightening.

Mendo

[RNM018]

Hey Lake Tarpon Boys .Is it posible some lowlife was trying to steal your stuff ? Sure hate to think this is going on . If not try double nutting & loctite . Also works good on all your small hardware . Good luck ,Hope to see ya'll soon . Who has the vidio from Clermont from behind the TIKIBAR ? Whould like to get a copy if posible . Maybe if some of ya'll come to Eustis some one could bring it . Thanks . Richard Martin

[Backfire]

Sure sounds like an out of balance something to me. Take a hard look at the prop shaft-like dial indicator, check prop balance-at least on a shaft on knife edges if not spin balanced, flywheel checked, upper main bearing and or loose cap bolts, check/torque
all jack plate and engine bolts often.
Backfire ;)

[O/B Dude]

I'm with Gordie. I only use Grade 8 bolts now. I got tired of always snugging up the S/S bolts. I use Grade 8 bolts and S/S nylock nuts and have NEVER had a problem. I run in fresh water, not salt. The gr 8 may discolor, but they dont corrode with fresh water use. Rain doesnt hurt them either. I have been slammed on this subject before but I'm sticking with what has worked for me. I always check the tightness before going out but I've NEVER had to tighten them. :)

[CDave]

Just use some red thread lock.

[O/B Dude]

I tried that but Lock-tite doesn't do much. (Tried double nuts to)The reason the bolts need to be retightened is they stretch rather than having the nut back off. Also, I have seen S/S bolts snap, but never a grade 8 and locktite won't keep that from happening. I read in an article that John Tiger used Gr 8 bolts, I tried it and have stuck with it ever since. I use S/S washers and nylock nuts. I have never had a stainless nut strip off so no reason to go with the Gr 8 nuts. :cool:

[RNM018]

WOW I just looked at the pics again . Is that Joe Baja's Allison ? That had to be noticable if it came loose like that on a V - bottom !

[rmh77]

Funny,when i tighten my bolts they never come loose;) a little pork tork goes along way:D