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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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03-17-2019, 11:51 AM | #1 |
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Broken ignition coil bolt
While changing my spark plugs I cross threaded the passenger side front ignition coil bolt. It broke off just above flush. How screwed am I?
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03-17-2019, 12:20 PM | #2 |
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Pain in the ass but not horribly screwed.
https://www.aliexpress.com/item/5Pcs...E&gclsrc=aw.ds
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03-17-2019, 06:18 PM | #4 |
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Yeah definitely cant get that in there, I'm afraid they are going to have to pull the motor....so I'm probably looking at 1k to repair?
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03-17-2019, 06:20 PM | #5 |
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Well ok then. Extracting the bolt is a pain in the butt. Getting to the bolt to extract it is even worse!
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03-19-2019, 10:35 AM | #6 |
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$1100 to fix. That's for pulling the motor, replacing the valve cover because they couldn't get the bolt out and 2 new spark plug seals (whatever those are). I told them to just check everything at this point since the motor is out and I'm in this deep
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03-19-2019, 11:56 AM | #7 |
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If you have MT, mind as well get stronger clutch fork plus newer TOB, if engine is out.
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03-19-2019, 05:59 PM | #8 |
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Clutch and TOB were replaced <20k miles ago so I should be good. I'm having them check the pulleys because my engine is really chirpy on start up.
I also have a pretty unstable idle, it is all over the place from 500 to 1k , should i have them do that too?
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03-19-2019, 06:25 PM | #9 |
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Here are my plus vs new. Changed at 84k miles
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03-19-2019, 10:19 PM | #10 | |
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Quote:
Is there enough sticking out to get vice grips on it? My next suggestion is cut a slot in the bolt with a cutting wheel on a Dremel. then get a slotted screwdriver bit in a ratchet. Have someone with a pry bar apply pressure to the ratchet head while you try to unscrew the bolt. Wouldn't hurt to soak it with a penetrating oil as well. The next step normally would be to drill out the bolt and put a helicoil in. You could try doing it with a right angle drill and stubby bits but I doubt it would be possible without lowering the motor. just curious, does the coil have to have a bolt on it? could you wedge something between the frame and the coil to hold it in place? |
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