Premix

[jonathanjoy]

Read quite a few of the Oil threads on the forum. Can you use 2 stroke oil, through the pilgrim to the glands ? I’m not sure of the difference between 2 stroke oil or normal mineral oil. Its just that I’m not sure whether to use premix through the pilgrim.

[Oldguy]

The original idea was to pump a normal 40 weight oil from a tank to the mains via the glands.
Splash aided the big-ends and some to the bore.
Then the fuel transfer from crankcase to piston picked up oil from the crankcase (sump?) and transferred it to the combustion chamber (plus cooling and helping to lubricate the little and big ends), this should achieve total lubrication.
So, in this instance the system predated Suzuki et all by around 70 years.
The question of oil type is sightly obscure, the original idea was straight standard mineral oil, 2T oils evolved due to premix only applications (not meant for the Scott but for engines like the Villiers), they are also especially formulated for this role.
Should you run premix through the Pilgrim, NO!!!!

Can you use 2T through the Pilgrim, absolutely yes!! But bear in mind the limitations of the poor, old and much maligned Pilgrim, and do not use a low weight (thin) oil.

Mike

[jonathanjoy]

Thanks Mike,
So are you saying premix and 2T are different. I can use 2T through the pilgrim but not premix ?

[Bob Mather]

Hi jonathonjoy,
Your post is rather confusing. As I see it, premix is petrol and oil mixed together, not to be run through the pilgrim pump. Two stroke premix oil is oil not premix. Two stroke premix oil like Castrol 2T can be run through the pilgrim pump but is a bit too thin for what the pump was designed for. It is better to run a thicker two stroke oil through the pilgrim pump. I use Silkolene Classic 2T premix oil which is sae 40. There are other 40 grade two stroke premix oils available. In the petrol tank I run a 50: I mix using outboard engine oil, ideal in the Scott as it burns very cleanly, is intended for watercooled engines and has good anticorrosive properties.
This post will probably cause some argument but I have used this combination for years now, with no smoke and no problems.
Regards,
Bob Mather.

[jonathanjoy]

Ok Thanks, I’m clearer now.

[NIngram]

& that has also helped me so thank you Bob, my rebuilt bike is nearly back on the road since 70’s maybe ? & this was also one of my questions, rebuilt pilgrim so fingers crossed all will be well…..

Nigel

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