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Mocal oil catch tank thread size
jeffw - 18/4/12 at 08:34 AM

I have a Mocal 1lt tank I want to convert from 1/2" push on fittings to AN-10 but I don't know what the thread is on the 1/2 push fittings where they go into the tank. The thread measure 12.9mm in diameter. Anyone know what it is?

HowardB - 18/4/12 at 08:44 AM

could be 1/4BSP, that would be 13.15 on the OD,.. however I had something the other day that was M12 x 1.5, there are so many threads out there used on similar stuff,...

is there any info on the Mocal website?

jeffw - 18/4/12 at 08:48 AM

Nothing I could find. Don't think it is M12 as it is almost 13mm (12.97 on the vernier). Could be 1/4BSP

TheKingofBling - 18/4/12 at 08:56 AM

Defo 1/4 BSP, done the same on mine Jeff

jeffw - 18/4/12 at 09:17 AM

Thanks

jeffw - 24/4/12 at 07:32 AM

Spot on with the 1/4BSP. I had to run a 1/4BSP to AN-8 converter then AN-8 to AN-10 as the crankcase vent was a AN-10. All good now and no more oil leaks from the PCV area (or dipstick).