Volvo RWD 120-130 Forum

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120 3 pot calipers 120-130

posted by  stigansven on  Sun Dec 30 08:23 CST 2012
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last visit: Tue Oct 14 09:03 CST 2014
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Hi all, front calipers on a 120 have a tapered seal on the pistons does any one know which way round these go. :ie taper facing pad or away.
S&SVEN








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120 3 pot calipers 120-130

posted by  planetman on  Sun Dec 30 12:52 CST 2012
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last visit: Fri Oct 24 09:29 CST 2014
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Hello,

According to the Volvo green book on brakes, the inner seals are square.

The green book describes the groove in the caliper for the inner seal as having an oblique angle, but the seals are square and do not have a taper.
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502








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120 3 pot calipers 120-130

posted by  volvo15 on  Sun Dec 30 13:11 CST 2012
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last visit: Fri Oct 24 08:19 CST 2014
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Having sold foreign auto parts for more than 20 yrs I have never seen a tapered seal, I have sold thousands of ATE and Girling seals, are these new seals or are you reusing the old ones??








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120 3 pot calipers 120-130

uid 779's pic
posted by  matt b on  Sun Dec 30 10:19 CST 2012
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last visit: Tue Oct 14 16:33 CST 2014
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Pointy edge faces the fluid, so tapered side would got towards pad.

That way, then pressure is applied, the fluid tries to expand the seal against the inner bore.

Put it in the other way, the fluid would do the opposite, compressing the seal and the fluid would easily go past and escape, as it is wont to do.





--
-Matt I ♥ my ♂








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120 3 pot calipers 120-130

uid 32173's pic
posted by  Gary L on  Sun Dec 30 10:19 CST 2012
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last visit: Wed Oct 22 10:26 CST 2014
[RELATED]

If you're talking about the piston seal that fits in the caliper, the part of the taper that is "deepest" in the caliper is towards the pad. In your words, I guess this would mean the taper is facing away from the pad?
--

Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos







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