Corrosion behind thermostat

[valantis544]

I recently opened the thermostat housing due to replacing timing cover gaskets and i saw that a metal plate on the block which is marked on a photo i found on the internet, is very corroded and the round hole is now double the side and i think the little plate of the thermostat sits there and closes that hole. I dont have any problems with heating not loosing any coolant. Unfortunately i didnt take a photo. Is this a problem??

[wazzu70]

As long as the restrictor is still in place and not loose, I wouldnt worry about it too much. Its not ideal, but if the rest of the head is in good shape there isn't much point in switching it out.

[valantis544]

As long as the restrictor is still in place and not loose, I wouldnt worry about it too much. Its not ideal, but if the rest of the head is in good shape there isn't much point in switching it out.

Yes the rest is in perfect shape allthough the engine is burning oil in some strange way after a rebuild and running rich.

[wazzu70]

That would not have anything to do with what you posted though.

Did you have the head pressure checked during the rebuild? In my experience running rich is usually caused by a vacuum leak.

[valantis544]

That would not have anything to do with what you posted though.

Did you have the head pressure checked during the rebuild? In my experience running rich is usually caused by a vacuum leak.

Yes as i was told the head was completely repaired. I think a vacuum leak causes a lean condition but i will check for vacuum leaks very soon.

[wazzu70]

Vacuum leak causes a lean condition, but your O2 tries to compensate giving you an overall rich condition. Its weird, but thats how it works!

[valantis544]

Vacuum leak causes a lean condition, but your O2 tries to compensate giving you an overall rich condition. Its weird, but thats how it works!

Ok then i will check it out as soon as i can and i will report back.

[valantis544]

Checked everything with starting fluid no change to idle.