Corrosion on Cylinder Head :(

[JohnRaven.exe]

I was cleaning the cylinder head on my '86 Yamaha XT350 last night. And after a good cleaning and an attempt to dry it off the best I could, I noticed little white spots everywhere...(the kind you see on a corroded battery) What has me really puzzled is that on the other part of the engine block, it was fine....no corrosion of any kind. Why only on the Cylinder head???

I can clean it off and dry it really good, but it just got me real curious... :whoa:

Any ideas why??

 

[76GMC1500]

The cylinder head corrodes first because it gets the hottest. Was it not painted black from the factory? Maybe you should repaint it.

 

[JohnRaven.exe]

Yep, thats what I'm trying to do :P I guess I should have stated that too. Sorry.

I guess I'll just have to clean it real good and dry it off really fast so the water won't turn into corrosion.

 

[76GMC1500]

I just wouldn't even worry about it. If it bothers you, you can wash the head in alodine and prime with a zinc chromate primer (both available at some marine stores).