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I guess it depends which parts list you have! Here's my Flea parts list for S7112 (last contract) which shows a Bakelite pump and no grease gun.
And my ML parts list for contract S1972. Again Bakelite pump and no grease gun.
My current situation is that I have a Bakelite pump on my ML and a steel one on my Flea.....I think I'll just leave it like that:relaxed: Ron
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Going back to the change from M220 to 50.H.D oil, the instuction's for completely changing the engine oil are very detailed but there is no mention of flushing the gearbox out before changing to the new detergent oil, maybe there are more detailed instructions in the complete DME circular or maybe it was safe to mix them in a gearbox which didn't get as hot?
And the "packaging" colours are interesting, Wesco cans have been found in Yellow, Silver (grey?) and Red which does match that list, but as most surviving Wesco can seem to be a variation of yellow is it likely they were all used for "Light oil" ?
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I don't think that a gearcase would suffer problems if a 'detergent' oil caused crud to come loose. The odd thing is that modern reports suggest that while detergent oils keep particles in suspension, they don't actually clean old oil deposits. Maybe that's because there have been no true 'straight' oils for seventy-five years and actually the early detergents did have a cleaning action ?
Colour coding seems to have been likely with workshop 1/2 pint cans and the need is obvious but less so with a single can carried by a motorcyclist. I suspect that the pre-war cans were finished in aluminium paint which became unavailable so a copper metallic was substituted and then finally the mustard straight colour which was on the last of the brass cap and all of the steel pressed cap 200 Wescos.
The great puzzle for me remains how they could have expected C600 oil to stay in a Tecalemeit grease gun (no seals and no cap). They were grease guns...
Was C600 rated at 600 centistokes or was the numbering coincidental ?
Well, if the only gain I get from this thread is the fact that the nipples didn't have a spring and ball I shall be happy! Mine don't and after the misery of finding a complete set of them and having them chromed, I'd have been very upset I'd gotten it wrong. ! Phew!!
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Richard, I think that this was the thread that I found on HMVF...
It would have been better if I hadn't mentioned EP, but in my defence, I did state equivalent in viscosity, not that it should be substituted.