Is this right?

[SS109]

Yup, getting old sucks. My memory isn't anything like it used to be!

I'll pull it and take a close look at it. Thanks.

[ditezz]

Originally Posted by (F5)

Yes, it's just that piston, but the rest is nice. If the cap says mineral oil then use mineral oil.

Do look inside the bore. I've cleaned brake ones before with 1200 wet and dry. Guess oli ones would be less likely to get corrosion damage.

Lube it before inserting.

Said the actress to the bishop.

The Mineral oil masters are MORE likely to corrode if moisture gets in as water doesn't mix with the mineral oil and pools in the master and causes corrosion. Brake fluid is hydroscopic and water tends to mix with the brake fluid .Its prudent to replace the clutch mineral oil every 6 months

[SS109]

Originally Posted by ditezz

The Mineral oil masters are MORE likely to corrode if moisture gets in as water doesn't mix with the mineral oil and pools in the master and causes corrosion. Brake fluid is hydroscopic and water tends to mix with the brake fluid .Its prudent to replace the clutch mineral oil every 6 months

Yeah, I'm familiar with how mineral oil is hydrophobic and the problems it can create. Luckily, I live in one of the driest places in the USA so I'm not overly worried. Regular servicing should make it last.

Anyway, I couldn't find a kit that I for sure knew would work so I went ahead and ordered a new master from CPD Direct. Should be here early next week.

That said, the price of a little 4oz bottle of mineral oil is ridiculous. I paid over $10 for that little bottle after I finally found a place that had some in stock. I've read where non-scented baby oil can be used, as it is a mineral oil, with good results. I know it is a helluva lot cheaper and readily available. Anyone ever use it?