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**hatzie** · 10-17-2015, 05:27 PM

Once you use a pressure bleeder you'll never want to go back to any other method. I flush my brakes every couple years when the DOT4 hydrometer shows more than 2% H20... The testers are fluid type specific one for DOT3 & one for DOT4. They are around $25

Vacuum bleeders will work fine as long as you can seal the bleeder threads to keep from sucking air through them.

My solution was to drill all the way through a caliper bleeder and a wheel cylinder bleeder so they could be tightened up against the tapered seats and not leak air. This, of course, requires that you buy replacement bleeders for the ones you mutilate into tools.

10-17-2015, 05:27 PM	#21
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 5,022	Re: Why - only one caliper works Once you use a pressure bleeder you'll never want to go back to any other method. I flush my brakes every couple years when the DOT4 hydrometer shows more than 2% H20... The testers are fluid type specific one for DOT3 & one for DOT4. They are around $25 Vacuum bleeders will work fine as long as you can seal the bleeder threads to keep from sucking air through them. My solution was to drill all the way through a caliper bleeder and a wheel cylinder bleeder so they could be tightened up against the tapered seats and not leak air. This, of course, requires that you buy replacement bleeders for the ones you mutilate into tools. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful. Last edited by hatzie; 10-17-2015 at 06:07 PM.