So I'm a idiot

Mopedamauter79

Mopedamauter79

New Member
I decided to take another look at the engine today and I'm looking at where I thought I blown a gasket. This was of course after I took off that sealant.

I wanted to figure out how it was still very loud even after the sealant on. So I grab my roomie flashlight and I'm looking around and the gasket does not apear to be blown. So I think to myself maybe it's the head gasket.. I look up and point the flaslight at the head. This is where I find the problem..

I had a gasket blown..however it was not where I thought it was. The gasket that blew was the exaust gasket. I guess it was a bad gasket or something because it blew right away. I'm also thinking the exaust was not on as tight as I thought it was.

Thankfully I had a spare gasket and I replaced the blown one and made sure it was nice and tight. I took it out for a good almost 3km test run and it sounded pretty much normal. I guess when I looked at the exaust gasket before It was dark and I didn't notice the chunk missing ?
 
The exhaust manifold flange where it attaches to the cylinder can be warped. This can and will cause premature gasket failure. When you have the pipe off lay a sheet of medium grit sandpaper on a known flat surface and rub the flange across the paper. You'll be able to see immediately if the flange is flat or has a warp to it. Most of the warpage I've seen is not bad enough that you can't sand it flat with a little time and elbow grease. The machined surface of the cylinder is usually pretty good but you can check it with the same method only use a flat file and sand cloth or paper to see if there are high or low spots that need attention. A good mating surface, a quality gasket and proper torquing of the fasteners will assure maximum life for the exhaust manifold gasket.
And no, you're not an idiot. An idiot wouldn't have asked for help. :)
Tom
 
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