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4 piston calipers

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2javman View Drop Down
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    Posted: Nov/21/2015 at 1:36am
Hi folks, just wondering about  post I read earlier this week. As I understand you can buy copies of the bendix four piston calipers from advanced or rockauto. However, being new the bores are not sleeved with stainless steel and eventually would leak from the exposure to brake fluid. Isn't there a silicon based brake fluid? One that does not absorb moisture and corrode as bad? I was just wondering if that would be an alternative and keep the calipers from leaking if they were not sleeved. Thanks for any input.
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pit crew View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pit crew Quote  Post ReplyReply Direct Link To This Post Posted: Nov/21/2015 at 7:57am
Originally posted by 2javman 2javman wrote:

Isn't there a silicon based brake fluid? One that does not absorb moisture and corrode as bad? I was just wondering if that would be an alternative and keep the calipers from leaking if they were not sleeved. Thanks for any input.
DOT5 brake fluid is silicon based. Just a little pricey and some people claim they don't like the "feel" it gives to the brakes. On the up side it will not eat the paint if you should spill or leak any.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote ramblinrev Quote  Post ReplyReply Direct Link To This Post Posted: Nov/21/2015 at 8:05am
If you are replacing the whole hydraulic system, Master, calipers, wheel cylinders, AND are willing to flush some expensive new fluid through before filling, go with DOT5.

You can buy bottles of it at Advance Auto Parts. If you buy online, grab a 40%off  coupon and pick up in store. Then the 10 or 11 oz bottles are only $6 each.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote AMXTSY Quote  Post ReplyReply Direct Link To This Post Posted: Nov/21/2015 at 9:18am
   Dot 5 brake fluid is a popular choice when rebuilding. However, it does require a COMPLETE flushing of ALL components- including brake lines, wheel cylinders, master cylinder, calipers and pistons. It is silicone based and is not readily compatible with other traditional fluids. 
   Dot 5 has completely different characteristics including boiling point temps. The primary reason folks switch over is because it will not damage your paint if accidentally spilled.
  There has been much previous discussion here on the pros and cons. Recommend doing a forum search for prior posts. I'm sure that you will find a lot of helpful info.  Bruce

   I was to slow on the draw- other posters got there first. X2 to what they said.


Edited by AMXTSY - Nov/21/2015 at 9:25am
Bruce Carothers
Champaign County, Il.
AMO # 9928
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