56 G80 CS

Information relating to the Matchless G85 500cc Heavyweight, AJS 7R, Matchless G45 and Matchless G50
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Re: 56 G80 CS

Postby Mick D » Mon Aug 13, 2018 4:20 pm

ajscomboman wrote: I guess they've been swelling for a while and the latest round of baking hot weather and oil was enough


Hi

Out of curiosity, what oil are you using - brand, type, viscosity?

Regards Mick

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Re: 56 G80 CS

Postby ajscomboman » Mon Aug 13, 2018 4:31 pm

Mick D wrote:
ajscomboman wrote: I guess they've been swelling for a while and the latest round of baking hot weather and oil was enough


Hi

Out of curiosity, what oil are you using - brand, type, viscosity?

Regards Mick


SAE 50, I get it from Rye Oils. Use it in all the motors and not had any problems so far.

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Re: 56 G80 CS

Postby g80csp11 » Mon Aug 13, 2018 5:55 pm

Rob , Rye oil is tractor oil and not specifically blended for motorcycles . I know much cheaper but you get what you pay for
if you check out the classification you will see the difference , a bit like Asda own brand Vs Castrol
It might be that the oil has caused the 'plumber's O rings to swell or perhaps you payed the extra for Viton O rings

Just a thought

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Re: 56 G80 CS

Postby ajscomboman » Mon Aug 13, 2018 7:01 pm

g80csp11 wrote:Rob , Rye oil is tractor oil and not specifically blended for motorcycles . I know much cheaper but you get what you pay for
if you check out the classification you will see the difference , a bit like Asda own brand Vs Castrol
It might be that the oil has caused the 'plumber's O rings to swell or perhaps you payed the extra for Viton O rings

Just a thought


As well as tractor oil they also do a vintage classic oil for classic cars etc and that's what I use.

Not sure about the rings but as long as the new ones are not plumbers type I'll be happy.

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