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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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"Dripping" noise from brake master cylinder... but no leak?!Views : 1499 Replies : 11Users Viewing This Thread : |
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Mar 27th, 2013, 10:18 | #11 |
Premier Member
Last Online: Dec 28th, 2022 12:25
Join Date: Jun 2009
Location: Mercville
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The rust on that servo in the link is due to it rusting inside out!
The air inside has moisture in it and over time it corrodes. If you notice the metal is so thin it eats from the inside as the external surface had a good paint seal on. Another thing that proves this is the rust is at the bottom of the servo and not anywhere else, where the condensation collects. Everytime you brake a gulp of air goes in to make the servo work and so therefore so does the moisture in it. |
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Mar 27th, 2013, 20:21 | #12 |
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Last Online: Oct 22nd, 2019 15:49
Join Date: Jan 2013
Location: Strängnäs, Sweden
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Knowing how these things work really help understand the problem and or possible future problems... thank you
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