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Registered User
Join Date: Feb 2013
Posts: 96
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Battery terminal bolt head scratcher
I'm trying to take my battery out and I'm stuck on step 1, loosening the battery terminal bolts. I can't see how to fit a wrench in there (the Interstate battery is big).
Is there something obvious I am missing? I'm having trouble even seeing how the previous owner got it in like this in the first place. 1986 Coupe, I've had it for a year, this is my first time taking out the battery. 
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06-05-2014, 06:36 PM
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Member 911 Anonymous
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loosen the nut side with a box wrench, I like to use the Sears wrench or the OEM 13MM box wrench, they are a bit skinner.
Caveat, just remember not to over torque it when you install the OEM terminal have weakened over time and may fracture and give you a short. Ask me how I know 
__________________
'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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06-05-2014, 06:40 PM
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Registered User
Join Date: Feb 2013
Posts: 96
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The 13mm OEM box wrench was enough to get the positive terminal disconnected, thanks!
The negative side still doesn't have enough wiggle room. I can drill out the bolt, if no one has a better idea. |
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06-05-2014, 07:20 PM
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Registered User
Join Date: Jan 2011
Location: Houston
Posts: 237
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I have to use a flex-head ratchet with a very short extension to get to it.
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1987 928 S4 - Black 2014 C4s 991 - Agate Grey 2014 Cayenne - Mahogany metallic |
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06-05-2014, 07:23 PM
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Member 911 Anonymous
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I also used hb's S box wrench. You are correct very little room, I usually turn 1/8 at a time.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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06-05-2014, 07:24 PM
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Registered
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__________________
Pete 79 911SC RoW "Tornadoes come out of frikkin nowhere. One minute everything is all sunshine and puppies the next thing you know you've got flying cows".- Stomachmonkey |
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06-05-2014, 07:24 PM
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Registered User
Join Date: Feb 2013
Posts: 96
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Got it! I switched from using a 3/8" drive ratchet to 1/4" and that gave me just enough wiggle room to mount it. Thanks for the help.
But the battery still doesn't want to come out! There's no obvious hold down. I do see a torx screw that might be holding it down. Does that sound familiar to anyone? |
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06-05-2014, 08:01 PM
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Member 911 Anonymous
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The bottom of the battery sits under the chassis lip/ledge hold down. So slide forward then lift but the battery will need to come out in an angle, I know silly but that is german efficiency for you.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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06-05-2014, 08:05 PM
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Registered User
Join Date: Feb 2013
Posts: 96
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I couldn't get it to budge at all, in any direction. I'll take another look tomorrow.
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06-05-2014, 08:24 PM
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Member 911 Anonymous
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There is also a clamp down with an 6mm allen bolt on the neg side.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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06-05-2014, 08:33 PM
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Registered User
Join Date: Feb 2013
Posts: 96
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 I have that 6mm allen bolt loose, but it appears that the A/C condenser blower (911-624-013-01) is in the way. It's wedged right up to the battery. Is that the normal location for it? Can I just unscrew the phillips head screws I see to move it out of the way? The previous owner put some kind of gooey tape on the base of the blower, any idea why he would have done that? |
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06-10-2014, 05:35 PM
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Registered
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I don't think I ever removed the blower to get the battery out but it is tight. The "tape" is the air seal. You should disconnect the ground first, then the positive. Less sparks. A set of stubby wrenches helps. Ken
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Ken in Greer, SC 88 Carrera Coupe 98 C2S Coupe |
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06-10-2014, 05:47 PM
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Registered User
Join Date: Feb 2013
Posts: 96
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Got it out. Also picked up a 13mm stubby box wrench that I'll keep in the emergency toolkit. Thanks for the help, everyone.
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06-10-2014, 06:08 PM
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Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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Gasket.
Quote:
I always remove the blower when I change the battery.
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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06-10-2014, 07:16 PM
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Marble Grey
1979 Porsche 911SC
