W3DRK wrote:I guess it's impossible to tell until the plate and gasket are removed but there doesn't really seem to be much corrosion around the the plate.
I'm not familiar with the EFM but like I said the Van Wert is exactly the same. It wouldn't surprise me if the coils were interchangable. Ours didn't look that bad either but once you got the plate off there was a lot of corrosion inside the boiler around where the bolts were. There is a reason they changed the design.
It might take 20 or 300 years before it's an issue but it's going to be an issue. Ours was about 25 when it started leaking like that, we did have leaks before during shutdown but that is common.
If not I have a friend in manufacturing who is a hell of a welder
When we did ours I wasn't aware of the retrofit and it might nor even work anyway, my Brother just welded some new material on. If you have someone you can trust that welds have them look at first if there is any issues. Even if you get it off and find it a little corroded have him put some new metal on it.
I'm guessing I'd have to weld a plate over the whole area to cover up the stud holes, then attach the new flange to that?
If I recall correctly the retrofit had a very large plate on it that was welded right to the boiler but I didn't get a really good look at it either.Chris could probably get you picture of it, I'm not even sure if it's an actual part offered by EFM. He mentioned they had made them at the suggestion of one of their dealers, he must of been fixing a lot of them. Keep in mind you'll have to go through a dealer to get it. Chris could probably set you up if you need one.