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(the shotguns)
Join Date: Feb 2006
Location: Maryland
Posts: 22,307
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Can't get bolt out of calipers on '01 Grand Cherokee
Trying to replace rotors/pads on the front of my wife's JGC and the 13mm bolts holding the calipers on refuse to budge (first time i've felt an open ended wrench actually stretch!). I've hit it a few times with PB Blaster but no luck.
Can't fit the impact gun in there either. What do i do here? And, should i be prepared with replacement 13mm bolts? Is grade 8 from Home Depot appropriate for this? Thanks, Erik
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***************************************** Well i had #6 adjusted perfectly but then just before i tightened it a butterfly in Zimbabwe farted and now i have to start all over again! I believe we all make mistakes but I will not validate your poor choices and/or perversions and subsidize the results your actions. |
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03-29-2008, 09:58 AM
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The Unsettler
Join Date: Dec 2002
Location: Lantanna TX
Posts: 23,885
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Can you get some heat in there?
As crazy as this sounds sometimes trying to tighten a stubborn nut/bolt will crack it loose easier.
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"I want my two dollars" "Goodbye and thanks for the fish" "Proud Member and Supporter of the YWL" "Brandon Won" |
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03-29-2008, 10:24 AM
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Registered
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Breaker bar and cheater pipe?
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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03-29-2008, 10:47 AM
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Registered
Join Date: Jan 2005
Location: Houston (The Vintage), Texas
Posts: 4,528
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Yeah definitely put a pipe on the end of the ratchet or wrench. Mechanical advantage is your friend in this situation.
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-Tom '73 911T MFI - in process of being restored '73 911T MFI - bare bones '87 924S - Keep's the Porsche DNA in my system while the 911 is down. aka "Wolf boy" |
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03-29-2008, 10:52 AM
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(the shotguns)
Join Date: Feb 2006
Location: Maryland
Posts: 22,307
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My breaker bar has gone AWOL but i will find it and put it into action.
Can anyone confirm that grade 8 from Home Depot is an adequate replacement for the bolts holding the calipers on (IF they break)?
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***************************************** Well i had #6 adjusted perfectly but then just before i tightened it a butterfly in Zimbabwe farted and now i have to start all over again! I believe we all make mistakes but I will not validate your poor choices and/or perversions and subsidize the results your actions. |
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03-29-2008, 11:20 AM
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Registered
Join Date: Dec 2002
Location: Dahlonega , Georgia
Posts: 15,229
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Use a box end wrench if you have one as it grips all sides of the bolt head. Add one big friggen pipe and you should bust them loose. When you put it back together put some anti-seize compound on the threads for future removal.
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2002 Boxster S . Arctic silver + black top/int. Jake Raby 3.6 SS engine " the beast ". GT3 front bumper, GT3 side skirts and GT3 TEK rear diffuser. 1999 996 C4 coupe black/grey with FSI 3.8 engine . Rear diffuser , front spoiler lip with ducktail spoiler . |
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03-29-2008, 11:40 AM
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The bolt will probably still be fine if the head isn't rounded. If not, grade 8 would be fine for standard or 10.9 should be fine for metric. I'd try to keep the non-threaded length the same.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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03-29-2008, 12:41 PM
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Registered
Join Date: Aug 2002
Location: MD
Posts: 5,748
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Check the Help section of the local parts store, they usually have a few caliper bolts.
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03-29-2008, 04:58 PM
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1979 Porsche 930 3.4
