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  #16  
Old 08-05-2010, 11:05 PM
funola's Avatar
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My thinking was wrong. The pressure switch, when installed, never sees atmospheric pressure unless there is a leak in the system. It should always be at around 90 psi depending on the refrigerant. 2 terminals is sufficient.
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85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
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  #17  
Old 08-06-2010, 09:16 AM
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Join Date: Jan 2010
Location: Permian Basin, West Texas
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Quote:
Originally Posted by funola View Post
Sammboyellowsub, Did you use soap bubbles to pinpoint the leak? Using your hand to feel where air leaks are coming from is not very reliable.
I used water, which showed where the leak was coming from. It was coming out about 1/2 to 1/3 as fast as I could blow into it, which tells me I may have a leak somewhere. The compressor front main seal is notorious for wearing out too.
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'82 240D 224K miles manual transmission
mods: wooden 4by4 bumper, EGR delete and older EX manifold without EGR port, glass pack muffler (cheapest replacement muffler), rebuilt bosch injectors with Monark nozzles

working on: aux electric fuel pump, coolant/fuel heat exchanger/filter head, afterglow, low oil pressure buzzer/LED
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