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leaking rear calipers

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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subzerocarfanatic
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subzerocarfanatic

leaking rear calipers

Post by subzerocarfanatic » Mon Apr 20, 2020 10:25 am

I just rebuilt the rear calipers and installed new pads and rotors.I noticed after returning from driving it around the block a few times the rear wheels had what appears to be brake fluid on the inside of the rim.I double checked the piston seals with compressed air after installing to verify they were air tight so i'm a bit confused.I did re check the bleeder valves and brake line to caliper connection as well. What am I missing,did I over torque,my torque wrench was left behind when i moved from Alaska so I do not have a torque wrench so I cinched them at tight as i could get them.The 4 bolts that mount the 2 caliper halves back together that had thread lock on them,I cleaned them up and reinstalled with new orange thread lock.

scot850
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scot850

Re: leaking rear calipers

Post by scot850 » Mon Apr 20, 2020 1:57 pm

Hard to say without being there. Could be some dirt got between the 2 halves, the pipe is not sealing to the caliper, or you accidentally nipped one of the seals. All you can do is clean it all up with a rag and brake cleaner and then have someone press the brake peddle with the rear wheel off and supported, then see where it is coming from.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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subzerocarfanatic
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Joined: Sat Oct 19, 2019 6:41 pm
Year and Model: 2000 Volvo C70 HT
Location: NM
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subzerocarfanatic

Re: leaking rear calipers

Post by subzerocarfanatic » Mon Apr 20, 2020 2:29 pm

Yeah,I suppose they have to come off again for about the 3rd time,lol.

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