BlueZee

Question to @Captain Obvious and @SurferD: are your servo diaphragms (item 5 on a drawing) airtight? I am asking, cause I've checked two that I have in my garage - and both are leaking.

And yes, I can pass air through stem and that hole: Blow.mp4

Picture explains a lot.

@Captain Obvious : Isn't it a bleeding hole that you were thinking about, in 2012?

Here is also a picture in slightly better resolution:

It is a slip fit. Try to hammer it lightly from outside. Maybe heating and then cooling will release it. Bellow.mp4

Giant? I don't think so. This is a real giant:

Here are some AB valves for sale. Pretty expensive though. https://jdm-car-parts.com/products/anti-back-fire-valve-for-datsun-240z-nos

Check here: Tamiya Safari 240z, part 1 Tamiya Safari 240z, part 2 Tamiya Safari 240z, part 3 Tamiya Safari 240z, part 4 Tamiya Safari 240z, part 5 Tamiya Safari 240z, part 6

...and with catalytic converter that changes "f..k you!" into "love you!":)

Try to contact Mike Feeney: http://www.mjpauto.com/contact.html

And books. Do not forget about old-fashioned paper stuff: Both available in http://www.thezstore.com/. Here are direct links: Book 1 Book 2