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04-03-2008, 02:57 AM
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#1 |
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1970 Daily Driver
Join Date: Jun 2007
Location: Glenns Ferry IDAHO
Posts: 1,038
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Brake Question
I moved from Idaho to Utah and now have to go through the safety and emissions crap. So I took my truck in today and I passed emissions but was failed in safety for having leaky calipers, they said both pistons are leaking.
My calipers are only a couple of months old. I got them from NAPA when I put disc brakes on my truck. My brakes seem to work great. So my question is, if your brake pistons are leaking wouldn't you have no brakes? When I asked the guy on the phone he said it was a slow seeping from the pistons. I have to go get it and take a look at them tonight I have 15 days to have them ready for a re-inspection, after that I have to pay again. Has anyone else had this problem? Is there a way to make sure they are leaking and not residue from bleeding them? Could having the wrong proportioning valve do this? Thanks for any advice.
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It's not truly yours if you didn't build it yourself or if you don't do your own maintenance. Last edited by lts70; 04-03-2008 at 02:59 AM. |
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04-03-2008, 03:25 AM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Brake Question
It is hard to believe the calipers are leaking. I would check them over carefully. I can't remember ever having a caliper leak at the piston on these trucks!
If you truly have a leak it would definitely affect the brakes sooner or later. Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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04-03-2008, 03:36 AM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: Brake Question
it's probably from bleeding them. The odds of getting 2 calipers that leak... even if they are rebuilt... are astinomical.
Take the wheels off, and hose it all off with brake cleaner, if you have compressed air, then dry it that way, if not, then just let them air dry. Inspect for clenliness and get reinspected |
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04-03-2008, 05:27 AM
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#4 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,992
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Re: Brake Question
What LHM said.Then keep an eye on them and on the resevoir so it doesn't go low on ya.If it doesn't go low and the calipers stay dry you will know you just had residue from bleeding them.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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04-03-2008, 06:59 AM
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#5 |
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Son of a gun
Join Date: Jan 2007
Location: Hot Springs, Arkansas
Posts: 1,636
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Re: Brake Question
Probably nothing like the others said, but If you reused your crush washers under your banjo bolts, they can seep fluid if you don't really crank the banjo bolt down. That situation caused the only caliper leak I have ever seen.
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