Just bought this 1980 Monty 248. All appears cool so far, but a little bit of clutch drag is a bit of pain. Put it in gear and it's noticeable to the extent it's hard to roll backwards and tricky to find neutral. Any idea of possible causes?

 

 

It's got ATF in it right now. Is that more or less viscous than the 10w30 recommended in the old manual?

Thanks bud, I've jumped on the other thread now. It seems the brass plunger is the likely culprit.

Back in the day I put an unsuitable oil in my 348 that caused severe drag.  I had to strip the clutch and clean the plates in petrol to get rid of it.  Perhaps you may need to do likewise if you do not know what might have been in there.

They can't swell as they are all steel.