Quote:
Originally Posted by funola
I broke this plastic tee today trying to get the hose off to take a vacuum reading. I started the engine but it won't shut off. I pushed the broken tee to seal and the engine shut off. Not knowing what other problems this will cause I got creative. I tapped the broken tee with a 1/4 -20 tap (after drilling out with tap drill). I machined a nylon adapter on a lathe with 1/4-20 die and threaded it in the newly tapped tee and connected the hose and all's back to normal. 
I want to see if I can make the transmission shift better. It flares sometimes starting from a standstill and jerks forward. It also makes a pronounced clunk coming to a stop. Are these signs of vacuum problems to the transmission vac modulator?
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(1) Extra Ordinary Fixes - IF you are inclined to perform such intricate work on these brittle plastic T(s) in the Pump-to-Brake booster chamber... I would recommend you fashion a metal "T" in this, the main vacuum supply line.
(2) Tweaking the Engine/Tranny Vacuum Control System - Yep, this is why this THREAD was started by me more than 250 posts ago. For those of us on this THREAD to help ya, we need for you to go through a series of vacuum tests and report to us the results. I trust you have a vacuum hand pump/gauge... the tests include:
(a) tell us what year and model diesel you have,
(b) go to the website :
http://www.peterschmid.com
(c) and then their webpage:
http://www.peterschmid.com/vacuum.htm
(d) follow thru the menu structure and find the appropriate vacuum diagram for your year/model/engine car.
(e) report back to us with all of the above.
Regards,