Offshoreonly.com - Weld a cracked GIL manifold?

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McNick

03-03-2019 01:28 PM

Weld a cracked GIL manifold?

Anyone know if a crack like this can be welded? I live in europe and a new manifold isn’t easy to find here. It’s for my HP500 merc.
https://cimg5.ibsrv.net/gimg/www.off...fd1af593f3.png

getrdunn

03-03-2019 02:00 PM

Notorious for cracking there. Yes can safely be welded/heliarced. Ideally replace but I've had a couple welded over the years without failure.

McNick

03-07-2019 02:55 PM

Welded and ready to go

https://cimg4.ibsrv.net/gimg/www.off...f849a3482.jpeg
Had a friend weld it and I think it looks great

liberator221

03-07-2019 07:00 PM

Pressure test it.

getrdunn

03-08-2019 11:51 AM

Good job.

vee robb

03-18-2019 07:17 PM

I have seen them crack there also, I think it's a design flaw. I don't think they expand at the same rate, particularly when run on raw water. Welding up the transfer ports and running the engine closed cooling system helps a bunch.

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