Sticking Caliper Piston

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yevych
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Sticking Caliper Piston

Post by yevych »

I searched forums - but didn't find any thread related to this problem... I was replacing my front break pads and noticed problem with one of the pistons - it hardly moved, and the pad on that side was twice thinner than others. The boot on that piston is very loose - so I guess dirt and water did a job,
Did anybody ever replace just one piston on H3? Does it make sense? Should I replace whole caliper?
2010 H3 Adventure 3.7L - Hummer evolution :), 35" Mickey Thomson MTZ on 16" MT SideBiters, oem underbody & rocker protection, Safari snorkle, K&N filters, Air Doc intake, Rola roof rack, Off-road lights, Runva winch on High-Mount and Warn on tray, Outfitter heavy duty tie rods.
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Toxicrider
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Re: Sticking Caliper Piston

Post by Toxicrider »

Calipers are fairly cheap, think I paid $130 for the last one I bought, so I would just replace it and be done with the problem.
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whitehumh2
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Re: Sticking Caliper Piston

Post by whitehumh2 »

I agree, replace the caliper as an assembly!
<p class="bbc_center">1 - There is a time for everything,

and a season for every activity under the heavens:

3b - a time to tear down and a time to build,

5 - a time to scatter stones and a time to gather them,

Ecclesiastes 3:1,3b&5a
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yevych
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Re: Sticking Caliper Piston

Post by yevych »

Thank you guys. I was inclining toward replacing the whole thing - since I wasn't sure if it worth to play with piston... The boots on other pistons seems like close to their end of life - so I guess it make sense to take preventative measures :-). Any suggestion for brand/place to buy? 
I'm planning to replace on my own - do you have any tips? 
2010 H3 Adventure 3.7L - Hummer evolution :), 35" Mickey Thomson MTZ on 16" MT SideBiters, oem underbody & rocker protection, Safari snorkle, K&N filters, Air Doc intake, Rola roof rack, Off-road lights, Runva winch on High-Mount and Warn on tray, Outfitter heavy duty tie rods.
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Toxicrider
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Re: Sticking Caliper Piston

Post by Toxicrider »

I bought mine in London at APC. Be prepared to replace the brake line as well depending on how rusty yours is. Mine broke as soon as I tried to remove the banjo bolt from the caliper.  Other than that it is pretty straight forward.
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yevych
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Re: Sticking Caliper Piston

Post by yevych »

I found some helpful info on YouTube (not for H3 through) ... and decided to help the next guy :-)
https://www.youtube.com/watch?v=iJauREbtRxY
2010 H3 Adventure 3.7L - Hummer evolution :), 35" Mickey Thomson MTZ on 16" MT SideBiters, oem underbody & rocker protection, Safari snorkle, K&N filters, Air Doc intake, Rola roof rack, Off-road lights, Runva winch on High-Mount and Warn on tray, Outfitter heavy duty tie rods.
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GreenMeanie
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Re: Sticking Caliper Piston

Post by GreenMeanie »

Although the calipers are quite cheap to buy and readily available everywhere they are also quite simple to rebuild and a lot less expensive. The repair kits were about 15 bucks IIRC.
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yevych
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Re: Sticking Caliper Piston

Post by yevych »

[quote="GreenMeanie"]
Although the calipers are quite cheap to buy and readily available everywhere they are also quite simple to rebuild and a lot less expensive. The repair kits were about 15 bucks IIRC.
[/quote]
 
That is something that I want to try when I have time. I didn't have to return my old calipers... so the plan is - to get repair kit and try to rebuild it before I have problem with my new ones... at this time - the only problem is to find the time
2010 H3 Adventure 3.7L - Hummer evolution :), 35" Mickey Thomson MTZ on 16" MT SideBiters, oem underbody & rocker protection, Safari snorkle, K&N filters, Air Doc intake, Rola roof rack, Off-road lights, Runva winch on High-Mount and Warn on tray, Outfitter heavy duty tie rods.
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