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Home » Public Forums » GMCnet » Correct (and hopefully NON-leaking) brass combination valve? (GM 1257177 / AC Delco 172-1350?)
Re: Correct (and hopefully NON-leaking) brass combination valve? [message #358734 is a reply to message #358587] Thu, 17 September 2020 12:40 Go to previous message
JohnL455 is currently offline  JohnL455   United States
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma:
Senior Member
I wish Bob Stone was on line here. I have to ask him but most biasing is AFAIK determined by the master. He has been measuring various MCs and coming up with interesting data. One thing is if the biasing is off or inverted, it trips the combination valve, as it is just doing it’s job.

John Lebetski
Woodstock, IL
77 Eleganza II
 
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