wully1
Well-known member
How often would you fit an anode to a bike to stop it rotting?
that might have saved my Suzuki GT 250 :ambivalence:
How often would you fit an anode to a bike to stop it rotting?
Unfortunately, over the last few years the UK motor trade have started using cooper grease everywhere! No idea how this fashion started.
How relevant is motorcycle engineering though? How often would you fit an anode to a bike to stop it rotting?
It's not correct to be smearing copper grease on hinges, bonnet catches etc. This is what I'm seeing.
And they are absolutely correct in doing so .... although it has taken the motor trade 50 years to catch up with DIY engineers like me. See post #10.
Richard
It's not correct to be smearing copper grease on hinges, bonnet catches etc. This is what I'm seeing.
I accept you have recommended what we should use (stainless / aluminium), but I carry Molybdenum Disulphate grease on board because it is so good at stopping galling with stainless / stainless nuts and bolts etc. How would that work with stainless / aluminium ?All the OP needs is a good water proof grease. Lewmar Winch Grease.
I accept you have recommended what we should use (stainless / aluminium), but I carry Molybdenum Disulphate grease on board because it is so good at stopping galling with stainless / stainless nuts and bolts etc. How would that work with stainless / aluminium ?
Thanks George
You are right, I should be more careful.BTW, I'm sure it's sulphide
copper grease should never be used on Ali as the reaction between the two will leave holes (I own an Ali boat), the white deposits could be corrosion or salt, I have used a light oil in the past but i found regular cleaning with boiling water works best.
Bronze and aluminium in contact is a nightmare.Recommendation sought for suitable anti seize material for a typical rudder shaft to tiller mounting.
This type of mounting is common to most Jeffa tiller operated rudders.
The various metals are:
Aluminium rudder shaft with through hole for main tiller hinge bolt.
Bronze clamp stock head with through hole for hinge bolt and M8 stainlees cap headed clamp bolt recessed into bronze clamp head (female thread in bronze)
Stainless steel tiller U section for tiller attachment.
M10 Stainless steel through bolt for hinge.
There is also a secondary aluminium clamp ring with a recessed M8 Stainless cap head clamping bolt to prevent rudder dropping out of bushes or bearings.
In my case I carefully reassembled the head assembly coating all fasteners and threads previously using waterproof grease only 3 years ago.
I had done this as all three bolts had to be drilled out due to the previous 15 years of corrosion.
3 years later
I find the main hinge bolt was badly seized into the aluminium rudder shaft but not the bronze clamp head. I eventually removed it by punching it out after repeated applications of heat and penetrating fluid.
Copious quantities of white aluminium oxide was still attached to the plain shank of the bolt.
I understand that I could try using copper grease as an alternative but am concerned about the copper actually promoting the corrosive action and making matters worse.
The two smaller M8 clamp bolts both came undone with very little effort and had no sign of corrosion from reaction with either bronze or aluminium suggesting the waterproof grease had worked for single differential materials.
Any thoughts welcome.
Use TefgelThe stainless steel pistons on the ends of my whisker pole fur up and jam with white, crumbly paste. I’ve stripped and cleaned the piston pins, springs and the holes they slide in.
I have some of the insulating paste used to mount stainless steel fittings which will be too thick to use for this - or some copper grease which will work.
The question is - will the copper grease make the corrosion worse or is it safe to use?
Thanks Richard.Although copper grease would be better than ordinary grease, I would use aluminium grease for your application.
I'm referring to TSB240 as this is an old thread.
Richard