leak in manifold

[jetaylor23]

Got a pinhole sized leak in manifold on the circular weld spots how hard to fix and put back on?

[minnmarker]

Exhaust manifold? Maybe drill, tap, and put a screw in with lock tite.

[skyskier]

There is a JB Weld specifically for manifolds. I have never tried it, but I am about to. If it doesn't work you are out 8.99.

[DIE2SURF]

search "exhaust manifold leak". There is a thread entitled Starboard Exhaust Manifold Leaking that is very informative with good images.

Edited October 26, 2015 by DIE2SURF

[G-Mack]

search "exhaust manifold leak". There is a thread entitled Starboard Exhaust Manifold Leaking that is very informative with good images.

kinda funny......searched "exhaust manifold leak" and he only hit was your post.... well I guess mine now too

[Frits]

http://www.themalibucrew.com/forums/index.php?/topic/53103-exhaust-manifold-leak/

I used the metal paste method last summer. Make it clean by removing paint and dirt, put the metal paste on it and let it dry. Paint it black. Very easy.

I asked a few aluminum welders to repair this but they were all concerned to make it even worse. The manifolds are quite thin. It is possible when trying to weld it that you make the hole even bigger.

[onamission]

http://www.themalibucrew.com/forums/index.php?/topic/53103-exhaust-manifold-leak/

I used the metal paste method last summer. Make it clean by removing paint and dirt, put the metal paste on it and let it dry. Paint it black. Very easy.

I asked a few aluminum welders to repair this but they were all concerned to make it even worse. The manifolds are quite thin. It is possible when trying to weld it that you make the hole even bigger.

Had both sides welded without any issues, for aluminum welding you need to find a great welder not a good welder. The manifold is at less a 1/4" thick and the casting port plug that is welded in during is about 1/16". Two other boats on our lake have had the same.e issue and welding has worked fine, local dealers recommend welding along with Indmar.

Picture of the plug you can get from Indmar, about $1.50

http://www.themalibucrew.com/forums/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=31465

Edited October 27, 2015 by onamission

[DIE2SURF]

search from the "Home" screen. If you search from this thread, looks like you only gets results from this thread (which happen to have several results...funny.)