Front cover corrosion pics

[(RIP) Mark H]

Will this stuff (techy term) do the job?

http://www.acf-50.eu/corrosion_block.htm

Not as an alternative to dealing with the corrosion on your front cover, For one it seems for internal use, 2, I am not sure if it could be painted over easily, 3, Not sure how it would go on alloy surfaces.

 

[Tango]

Not as an alternative to dealing with the corrosion on your front cover, For one it seems for internal use, 2, I am not sure if it could be painted over easily, 3, Not sure how it would go on alloy surfaces.

Sorry, I should of said as an alternative to using copper grease on the bolt threads.

 

[Bendy toy]

I was given a tube of marine grade anti corrosion grease. Unfortunately its very slippery stuff and I'd expect stainless threads to shake loose all too easily. I therefore used a high solids copper grease all the way up the threads with copper washers under the screw heads. 18 months later there are no signs of aluminium corrosion around the screw heads.

Don't ask me why but copper seems to work very well between stainless and aluminium.

 

[(RIP) Mark H]

So does Alumslip, depends what you have a tub of I guess

 

[Bendy toy]

Hopefully a metalurgist can tell us.

Aluminium (volts) is -0.8V to -1V
Copper -0.3V
Stainless Steel -0.1V

Maybe copper bridges the range to reduce the battery potential to either side reducing the potential. Maybe the grease insulates.

 

[(RIP) Mark H]

Practice tells me that alumslip is absolutely fine to use in this application, there is no sign of any reaction in stainless / aluminum fixings when using alumslip whatsoever, I am happy to continue to use it if that's OK bendy toy

 

[Bendy toy]

It's said that Nickel is best for anti seize between stainless and aluminium. It's bang between them on the galvanic table. I suspect the real world anti seize is more about the grease than the added solids so it probably doesn't matter. If works why worry.

 

[(RIP) Mark H]

Thing is were not putting a man on Mars here Its a motorbike FFS either Copperslip or Alumslip will do a fine job at preventing galling and corrosion, use what you have to hand and don't lose any sleep over it

 

[Bendy toy]

Thing is were not putting a man on Mars here Its a motorbike FFS either Copperslip or Alumslip will do a fine job at preventing galling and corrosion, use what you have to hand and don't lose any sleep over it

Fair enough but when you've had M8 stainless bolts just shear off, you really want to avoid it happening again.

 

[Bigjimknickers]

Not looking forward to removing these bolts tomorrow!! 47k worth of crud & 16 years worth.

 

[Joca]

Go easy on them. Some may need a hammer with a soft metal drift

 

[dashfixer]

I use this. I've used it on aircraft engines including the hot sections, for years. I also use it on all threaded assemblies and exhausts. Just make sure that you don't put stainless bolts into aluminium or mag alloy dry or you will really learn about corrosion.

 

[Bigjimknickers]

I have copper slip in the shed can I use that?

 

[(RIP) Mark H]

I have copper slip in the shed can I use that?

Copperslip or Alumslip will do a fine job at preventing galling and corrosion, use what you have to hand and don't lose any sleep over it