broken valve cover bolt

corkyboi · 05-08-2023, 10:17 PM

I broke a valve cover bolt into my cylinder head. Any suggestions on getting it out? I've already drilled into it a considerable bit(this is an older photo before drilling) and before continuing is there anything I should do to help or other ways I can get it out?

n54.whor · 05-08-2023, 10:24 PM

You may want to look into an alternative such as swapping the motor or an LS swap. I had a friend with this issue and a new motor solved it.

oVeRdOsE. · 05-09-2023, 07:57 AM

Quote:

Originally Posted by n54.whor

You may want to look into an alternative such as swapping the motor or an LS swap. I had a friend with this issue and a new motor solved it.

+1.

If you can't made it with an extractor tool ( reversed thread),
do helicoil , faster and this bolt is not holding 400lbs of pressure anyway. drill the same size as the oem bolt, drop helicoil, re-torque.

HondaRC51 · 05-09-2023, 08:24 AM

Left handed cobalt drill bit + small propane torch to heat up around the bolt + PB Blaster. Thankfully its on the corner and you can get alot of heat on the outside around the bolt. Drill slow with a lot of downward pressure and it should walk the bolt right out

05-08-2023, 10:17 PM	#1
corkyboi New Member 5 Rep 17 Posts Drives: 2008 BMW 335i Join Date: Apr 2023 Location: Michigan iTrader: (0) Garage List 2008 BMW 335i [0.00] 2008 BMW 335i [0.00]	broken valve cover bolt I broke a valve cover bolt into my cylinder head. Any suggestions on getting it out? I've already drilled into it a considerable bit(this is an older photo before drilling) and before continuing is there anything I should do to help or other ways I can get it out? Attached Images
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05-08-2023, 10:24 PM	#2
n54.whor Registered 2 Rep 4 Posts Drives: ST E92 335i Join Date: May 2023 Location: Michigan iTrader: (0)	alternative option You may want to look into an alternative such as swapping the motor or an LS swap. I had a friend with this issue and a new motor solved it.
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05-09-2023, 08:24 AM	#4
HondaRC51 Private First Class 253 Rep 125 Posts Drives: 2009 E92 335xi Join Date: Oct 2022 Location: Maryland iTrader: (0) Garage List 2016 BMW S1000RR [10.00] 2009 335xi E92 [0.00]	Left handed cobalt drill bit + small propane torch to heat up around the bolt + PB Blaster. Thankfully its on the corner and you can get alot of heat on the outside around the bolt. Drill slow with a lot of downward pressure and it should walk the bolt right out
	Appreciate 1 feuer4289.00 Quote

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