Found the source of my bad boost leak.. Rev hard manifold has a crack on the top, running from wastegate flange towards the motor.

Is it safe to weld the crack while manifold is still on the motor? What should I do? Pull the ECU & battery first?

My friend can weld it for me tomorrow. If it doesnt hold, or I need to remove it Im just gonna get another one.

thanks

 

yeah you can weld it on the car no problem. disconnect the ecu and battery if you want to be safe.

 

thanks Rob

I hope we can get to all areas of the crack, even if it lasts a month or 2 it will give me time to get my shit together.

 

rev hard is a cast manifold right?

i would remove it... cast needs to be welded using steps...

grind out the crack, preheat the piece, weld the crack, post heat and then wrap the piece with a fire blanket to slowly let it cool down.

 

This is the more proper way of doing this, if you want a proper job.I had the same problem on a DC stainless steel turbo manifold, the problem is, once its fixed theres no gurantee its going to hold. Mine had been welded so many times i just got a new log manifold. I would fix it for now to save $$, but i would replace it in the future. Hope this helps

 

yeah im just doing this as a temp fix... the wallet is getting hit hard this month

 

Wow, you are good. There are not many people that know how to properly weld cast. If done properly it should last for a very long time.

 

temp fixes turn into a welders PITA!!!

 

 

Best part about cast is the fact that you can go pretty dep with the weld. Turn the juice up and let it penetrate.