I went on an injection pump repair tangent in this thread: http://www.peachparts.com/shopforum/diesel-discussion/401513-replacing-pneumatically-governed-om615-m-pump-mw-off-om616.html

With the repaired pump back in, I've starting trying to figure out the timing, both reading through threads here and the FSM. Looks like one thing I've overlooked until tonight is bleeding the air out of the IP. Is this the correct screw to loosen to bleed the air out of the pump?
https://i.imgur.com/edCIts4.png

I also spent a day last month at a pick-n-pull removing a OM615 from a surprisingly decent '74 240D -- it may end up in the van if I can't fix the stuck ring on cylinder 2!

Possibly is, but the return line takes care of that anyway. Still have to bleed at the injector pipe nuts as well.

Transaxle
 

Hi all, I just joined and I am picking a 206D camper next week, The van is all good, I'm on a learning curve at the moment by reading as much as can.
Are there any known problems with the transaxle on the 206? Regards Charlie

Not to my knowledge! The other owners I've talked to say that the drivetrain and frame are quite robust. The body does rust, though, and mine has plenty. Should be a bit easier for you to get parts in the UK, too.

Today I procrastinated on fixing the IP timing by dropping the gas tank for a proper cleaning and pulling all the old fuel lines for replacement. I probably will just swap in my spare OM615 -- not sure if it's worth my time trying to free this presumably stuck piston ring with MMO soaks and a future italian tune up when I have a spare ready to swap in, and then popping the head off the original engine.

Wow, finally able to connect (long story)... I've owned a 1976 L206D British van conversion called the "Ultra Autobahn" for over 40 years (KatieKat Website Myrtle) and stumbled upon this site and still playing catch-up. Been in mothballs but runs fine (20-year-old fuel via super filtration). Have all the factory workshop manuals, and would like to discuss source(s) for obtaining brake cylinders (at least one, as the others should be rebuildable) and relining the brake shoes, and what type of diesel fuel should I use for this OM615 (I think) engine? Thank you.

There is not much choice in diesel fuel, in some markets and at certain branded fuel stations there is some kind of (pricier) performance diesel, V-power etc, best to stay away from that. Some people use cleaned-up vegetable (waste) oil, but you generally have to make that yourself. Biodiesel is also not advisable.

These were made in India until the late 90's under the Force/Tempo Matador brand. If you have contacts there, you can still get spares for it.

Apple Hydraulics can sleeve your cylinders with stainless steel. (800) 882-7753