Valve Adjustment

wyshyvanuk · 03-27-2019, 06:07 PM

Hi. I'm about to adjust the valve clearances on a 2008 Z4 M Roadster. I'll need to slowly spin the engine at the crankshaft as part of the valve adjustment procedure. To get access to the crankshaft nut, am I correct that the wide black plastic "cover" at the front of the engine, and the electric fan, both need to be removed? Also, while I'm here, am I also correct that turning that crankshaft nut clockwise (from the passenger side to the driver side) is the correct direction?
Thanks for your help!!
Ted

Rated M Roadster · 03-27-2019, 06:15 PM

Quote:

Originally Posted by wyshyvanuk

Hi. I'm about to adjust the valve clearances on a 2008 Z4 M Roadster. I'll need to slowly spin the engine at the crankshaft as part of the valve adjustment procedure. To get access to the crankshaft nut, am I correct that the wide black plastic "cover" at the front of the engine, and the electric fan, both need to be removed? Also, while I'm here, am I also correct that turning that crankshaft nut clockwise (from the passenger side to the driver side) is the correct direction?
Thanks for your help!!
Ted

Just remove the intake and you'll have room to access. Clockwise is the correct direction.

StickMon · 03-27-2019, 07:32 PM

^WHS, but I do pull the fan cover and fan. Pretty easy to do and gives you loads of space.

wyshyvanuk · 03-28-2019, 09:52 AM

Thank you, gentlemen!!

jmillet · 04-03-2019, 06:58 PM

Instead of paying $60 for the special crankshaft socket buy this Water Pump Shaft Nut for $10 https://www.bimmerworld.com/Cooling/...Shaft-Nut.html
Install this nut and leave on.
BTW no need to remove the fan shroud.

StickMon · 04-03-2019, 08:06 PM

No special crankshaft socket needed on the Z4.
That's for the M3 with mechanical fan.
Just need a whopping metric socket.
I can't remember what size. 30 or 32mm, maybe. Somebody please chime in.

wyshyvanuk · 04-10-2019, 07:14 PM

I'll be diving in next week. Girlfriend has re-directed my efforts to re-modeling the backyard.

Rick F. · 04-13-2019, 05:12 PM

Ted,

As an alternative to turning the engine with a wrench on the crankshaft nut, you could put it in sixth gear and push the car by hand. (Unless it's an automatic, of course.)

Good luck with the adjustment!

Rick F.

wyshyvanuk · 04-19-2019, 03:27 PM

Socket needed for crankshaft is 32 mm. The adventure continues!!

RobMCoupe · 04-20-2019, 09:11 PM

Quote:

Originally Posted by StickMon

No special crankshaft socket needed on the Z4.
That's for the M3 with mechanical fan.
Just need a whopping metric socket.
I can't remember what size. 30 or 32mm, maybe. Somebody please chime in.

32mm socket.

03-27-2019, 06:07 PM	#1
wyshyvanuk Second Lieutenant 449 Rep 229 Posts Drives: 2008 Z4 MR Join Date: Apr 2018 Location: Tucson AZ iTrader: (0)	Valve Adjustment Hi. I'm about to adjust the valve clearances on a 2008 Z4 M Roadster. I'll need to slowly spin the engine at the crankshaft as part of the valve adjustment procedure. To get access to the crankshaft nut, am I correct that the wide black plastic "cover" at the front of the engine, and the electric fan, both need to be removed? Also, while I'm here, am I also correct that turning that crankshaft nut clockwise (from the passenger side to the driver side) is the correct direction? Thanks for your help!! Ted
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03-27-2019, 07:32 PM	#3
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	^WHS, but I do pull the fan cover and fan. Pretty easy to do and gives you loads of space. __________________ Warning: May contain traces of nuts.
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03-28-2019, 09:52 AM	#4
wyshyvanuk Second Lieutenant 449 Rep 229 Posts Drives: 2008 Z4 MR Join Date: Apr 2018 Location: Tucson AZ iTrader: (0)	Thank you, gentlemen!!
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04-03-2019, 06:58 PM	#5
jmillet Captain 64 Rep 666 Posts Drives: 2023 Hyundai IONIQ 6 SEL AWD Join Date: Aug 2007 Location: Seattle, WA iTrader: (1) Garage List 2023 HYUNDAI IONIQ 6 [0.00]	Instead of paying $60 for the special crankshaft socket buy this Water Pump Shaft Nut for $10 https://www.bimmerworld.com/Cooling/...Shaft-Nut.html Install this nut and leave on. BTW no need to remove the fan shroud. __________________ Jim Millet 2023 Hyundai IONIQ 6 SEL AWD Ultimate Red SOLD: 2007 BMW Z4 M Coupe Imola Red
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04-03-2019, 08:06 PM	#6
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	No special crankshaft socket needed on the Z4. That's for the M3 with mechanical fan. Just need a whopping metric socket. I can't remember what size. 30 or 32mm, maybe. Somebody please chime in. __________________ Warning: May contain traces of nuts. Last edited by StickMon; 04-03-2019 at 10:42 PM..
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04-10-2019, 07:14 PM	#7
wyshyvanuk Second Lieutenant 449 Rep 229 Posts Drives: 2008 Z4 MR Join Date: Apr 2018 Location: Tucson AZ iTrader: (0)	I'll be diving in next week. Girlfriend has re-directed my efforts to re-modeling the backyard.
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04-13-2019, 05:12 PM	#8
Rick F. Lieutenant Colonel 946 Rep 1,910 Posts Drives: 2013 BMW 335i cabriolet Join Date: Jun 2009 Location: Catonsville, MD iTrader: (0)	Ted, As an alternative to turning the engine with a wrench on the crankshaft nut, you could put it in sixth gear and push the car by hand. (Unless it's an automatic, of course.) Good luck with the adjustment! Rick F. __________________ For all my trips, check out http://rsftripreporter.net.
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04-19-2019, 03:27 PM	#9
wyshyvanuk Second Lieutenant 449 Rep 229 Posts Drives: 2008 Z4 MR Join Date: Apr 2018 Location: Tucson AZ iTrader: (0)	Socket needed for crankshaft is 32 mm. The adventure continues!!
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