Here's my thermostat housing. It's got rust inside and around the hose end. On the end the rust isn't soft or holey but rough. I'll be installing a new thermostat of course but not sure if this should be replaced. I also have rust in the intake manifold that you can't get to. Any advice?
Is rusty t. Stat housing useable?
- Thread starter B-ster
- Start date
Ole Don
Well-known member
I would clean all surfaces with a wire wheel, then re-evaluate the gasket surface. If you have an electric sander, go over that surface with some medium paper to flatten it. On the intake, use a stainless tooth brush, then the sand paper on a flat board. Stay away from silicone.
Fortunateson
Well-known member
As said above but you may want to perform Reverse Electrolysis on it (google it) as well. For any pitting you may be concerned about a wee bit of JB Weld would be fine I’m sure.
Hot Rod Reverend
Well-known member
Consider electrolysis if you do not have a blast cabinet. While it may be overkill for the housing, it may help with the intake manifold or any other parts that need rust removal. I have a blog post about this - https://www.hotrodreverend.com/post/rust-restoration-preparing-a-cast-iron-exhaust-manifold