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Fingers crossed....
Laverda Dave:
Oh dear, that is one place I will not use.
From what you have said I can't understand how these people can call themselves motorcycle mechanics having missed vital clues of the engine condition and after you had asked them to check the primary chain! How many times have they opened the engine, three times? I bet they haven't cleaned up the casing joints between each opening and did they use Hondabond to reseal the joint? And why is the head mechanic not checking the work before they put the engine back together instead of telling them of the fault when it was running?
Cowboys, I would be asking for my money back and threaten them with Trading Standards.
K2-K6:
Have they used copper washers on crankcase bolts in that picture ?
They look copper, possibly on main crank location too :o
Nurse Julie:
😱😱😱😱😱😱
Jan B:
Oh dear multiple things went sideways. Not a recommendation!!
What could be the risk in using copper washers?
K2-K6:
--- Quote from: Jan B on March 19, 2024, 07:46:32 PM ---Oh dear multiple things went sideways. Not a recommendation!!
What could be the risk in using copper washers?
--- End quote ---
Ordinarily used in specific location, such as oil way through the joint etc, has very good sealing by being able to deform and match the surfaces its being used within.
Changes status of material, from being soft initially (annealed by heating to red colour and quick quenching in water) to help seal, will squash under torque loading to help that sealing function, but can ultimately settle to produce less loading on the joint than initially tightened to.
More often found on head studs which are themselves holding a slightly "elastic" in pure engineering terms, gasket between head and barrels.
Steel washers effectively don't do any of this, are all but incompressible in use, if used on metal to metal joints like crankcase, or just the simple flanged head bolts on many locations on these engine.
Generally, its not good to use or replace one type with another without specific reasoning.
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