[trygve11]

Apparently these duoselect F1 drain plugs are very, VERY soft brass with a very large magnetic insert. I used an 8" allen to tighten it and it stripped! Did not have to apply much pressure at all to accomplish the strip.

I can't figure out if the drainplug is 21mm or 22mm. It seems like a 1.5mm pitch.

I need to buy a tap to fix the trans threads too as they were slightly marred.

Can someone help me with the specs? Also, does anyone know what the torque spec is on that plug?

Again, not the automatic but the duoselect trans. Mounted in rear.

Thanks!

- Jason

[trygve11]

Updating my own post here...

For future reference to others:

The thread on the F1 drain plug is M22 x 1.5mm pitch.

The Maserati part number is # 104280 and it is $5.00

The dealer couldn't locate a torque value. Keep in mind, it is "low". I (now) recommend seating the plug to contact the copper o-ring and then giving the hex key wrench a "palm bump" of about 1/10 of a turn to torque it down. Any further and the plug may give way and strip.

[trygve11]

I received the new Maserati F! drain plug yesterday and it has in fact been redesigned! And it was in stock at the dealer! Seems I'm not the only one to have problems with this little bugger!

[scot]

Thanks for the info! Definitely useful to us in the DIY set.