"effervescence"
Is that sorta like bubbles ?

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

Yep! It comes out of the pump mostly as fluid and I figure it bubbling it's way through the coil can't hurt. I'm running a liter of soda followed by the detergent bottle filled with warm water and then blowing it out. I'm going to do this until it's as clean as I can get it and then using some commercial stuff.

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My occupational hazard bein'
my occupation's just not around...
1980 300SD
1980 300SD