Re: Workup to 900F Cam Swap

Posted by shinyribs on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Workup-to-900F-Cam-Swap-tp4061837p4062055.html

crestview750f wrote

Do you engine builders put milk of magnesia on bolt threads to avoid dissimilar metal corrosion? We used it on bolts in the hot section of T-58 helicopter engines years ago. I have been thinking about steel bolts threading into aluminum heads.

I've heard this mentioned before. I think of it like this:

1- I don't want no aluminum bolts
2- I definitely don't want a steel head
3- That 30 year old bolt I pulled out looks good, if it makes it another 30 years it'll be outlasting me.


For the most part, the whole dissimilar metals thing is take only an issue where electricity ( primarily high voltage) is flowing through the joint. Not really an issue in an engine.