alright, read past posts, and just seeing what you think

[PowerAddict]

Okay, I've read all the iboat user reviews about what they think of repairing their cracked manifold.

Well, I'm broke, and I'm 90% sure I have a cracked manifold in my 140 mercruiser (I will find out tomorrow for sure)

I know I could have it welded by an experienced welder with mig, tig, or nickel stick.

Now, this would not be a permanent repair, but I was hoping at least the rest of the season (Maybe getting out on it 5 times...Mabye)

I know it really should be replaced, but my question isn't weather or not I should replace it, its have you guys seen a "patch" as you guys say last that long?

If you truly and honestly feel there's no way, you've never seen it last that long, your best buddy's uncle's niece's babydaddy's brother had a boat that exploded because of a welded manifold then I won't do it.

I just want my boating dreams to be fulfilled, but I'm not stupid.

 

[Reel Poor]

Re: alright, read past posts, and just seeing what you think

I would look at it this way. If you weld it and it doesn't work, the worst thing that could happen is you destroy your engine........And then you'll still need a new manifold for the new replacement engine. $250.00 vs $2500.00+ is a no brainer to me.

 

[bjcsc]

Re: alright, read past posts, and just seeing what you think

Man you guys get up early...

I agree with RP. The problem is that when these components fail, the internal damage = external damage. That's what happens when people clean up the mating ends of scaly risers and manifolds. The ends look OK, but it's what they can't see that comes back to bite them. It would be a big risk...

 

[ziggy]

Re: alright, read past posts, and just seeing what you think

1st boat i had. had a welded manifold. i got the boat from my mom after dad died. i have no idea how long it lasted for my dad, but i ran it for many runs w/o knowing i had a welded manifold. who knows how long he ran it that way. so yes it can work. and for quite awhile too. would i do that to my boat....not if i could help it as the ramifications aren't good if it doesn't work. but it does seem possible to do and get away with it......

 

[capecodder116]

Re: alright, read past posts, and just seeing what you think

It's like Clint Eastwood said, "Do you feel lucky?".....If you're a gambling man then do it...I wouldn't take the chance.....As previous posters have said, you have no idea what the conditions are internally and welding applies some serious heat and you could create additonal problems......

 

[Cheetah 20]

Re: alright, read past posts, and just seeing what you think

A guy I work with took his cracked manifold OFF the boat to a PROFESSIONAL welder.This has lasted him all year . Nickel stick was used.

My dad used JB weld 4 years ago and it is still good.

You are talking about exhaust manifolds? Corect

 

[bruceb58]

Re: alright, read past posts, and just seeing what you think

The problem is the internal crack that you don't see that is going to get you. If you have a crack on the outside, there is a good chance there will be a crack on the inside.

 

[Scaaty]

Re: alright, read past posts, and just seeing what you think

I had a leaky Ex-Man, water in one cylinder, yanked both, and before I gave them the float test, I looked, checked, filled, pressurized, everything...never did see just where they were cracked.
My point is this...they get hot... expand...and thats my point