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Preventing bi-metallic corrosion


Alba 7

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Numpty question ahead.....................

 

The spacers that Nitron supplied with for my dampers were the wrong size to fit the bushings on the car. I've had a local engineering co. (Precision Oiltools in Dyce) turn up some smaller ones and it ocurs to me that I might see some corrosion between these and the steel top damper mounting bolt that passes through them.

 

Original spacers were anodised ali and the new ones are plain ali without any coating.

 

I could get them anodised (but at £50 min charge, it is not likely to happen).

 

What else could one do to reduce / eliminate the bi-metallic effect?

 

Myles' radiator battery makes me think I should do what I can to avoid this !

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To be honest, I'd liberally apply some copper-ease or similar to them, which should eliminate the chance of any corrosion. You can get zinc chromate pastes (I've used some when reattaching my ali floor) but they 'set' so probably aren't great where movement is likely.

 

I've always found that copper-ease'd bolts have never shown any corrosion in environments when non-treated parts have.

 

Hope that helps *smile*

 

Darren E

 

Website and Emerald maps library

 

Superlight R #54

 

 

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It's very good for electrical connections too *cool*

 

BRG Brooklands SV 2.0L Ammo Duratec 😬 It seems that perfection is achieved not when there is nothing more to add, but when there is nothing more to take away. (Antoine de Saint-Exupery)

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BOSS, are you guys clairvoyant or something

 

Whilst doing another job last week, I put my smallish tube of Copperslip down on the floor whilst I tightened up the nut that I'd just greased. Turned round to pick up the next nut and trod on the open tube - ejaculating a brown worm right across the garage floor.

 

I did feel a prat degreasing the garage floor - thankfully no one saw me apparently washing concrete *redface*

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