[Healeys] Overdrive Planatary Gears

[Bert Van Brande]

You must have a 22% OD.   On the 28% OD the planet carrier washer just slides in. (it did on mine, 28% for a BN2 OD) On the 22% OD The planetary gears are larger.  You will need to drill out a pin to remove a gear.  Detailed instructions in the excellent pdf's on various sites:  

Nelson Riedel's article can be found on John Simms site (5 pdf's): http://www.healey6.com/technical.htm  

or greasy hands garage guide to rebuild the OD (2 pdf's): 
http://www.vintagetriumphregister.org/maintain-index.shtml

On both sites scroll down to OD section for the articles.  These articles focus on triumph A-type OD's but they are almost identical (accumulator piston is larger on most triumphs)

Cheers,

Bert
www.austin-healey.org