coolant leak from bottom of crank pulley

prepster · 02-20-2014, 10:27 AM

Hi everyone, i just did a partial coolant drain and bleed the coolant and found a leak coming from the bottom of the crank pulley, can't see any leaks coming from the top area, drips sort of heavy during the bleeding procedure, any ideas from where it can be coming from? thanks for the help

pwr hungry · 02-20-2014, 10:50 AM

Are you seeing it on the frame rail under the pulley? Check the diagram in the link. It has the hoses that run in that area.

http://realoem.com/bmw/showparts.do?...05&hg=17&fg=30

cwarren · 02-20-2014, 09:49 PM

#8 o ring leaked on my car after I changed OFHG could be leaking from there down on crank area . good thing if that's what it is its cheap and easy to replace.

prepster · 02-21-2014, 10:22 AM

Thanks for the help guys, it was a hose connecting to the engine that i had to remove to access the bottom bolt on the off on the left side, replaced the o-ring and seems to be doing fine now.

eric@helix · 02-21-2014, 10:58 AM

I was going to say...

If you were leaking coolant from your crank pulley, something very unusual and very expensive was happening. Glad you got it fixed.

02-20-2014, 10:27 AM	#1
prepster Private First Class 12 Rep 102 Posts Drives: bmw 335i Join Date: Apr 2011 Location: ventura ca iTrader: (0)	coolant leak from bottom of crank pulley Hi everyone, i just did a partial coolant drain and bleed the coolant and found a leak coming from the bottom of the crank pulley, can't see any leaks coming from the top area, drips sort of heavy during the bleeding procedure, any ideas from where it can be coming from? thanks for the help
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02-20-2014, 10:50 AM	#2
pwr hungry Banned 41 Rep 1,257 Posts Drives: 335 Join Date: Mar 2013 Location: Amer'ca iTrader: (2)	Are you seeing it on the frame rail under the pulley? Check the diagram in the link. It has the hoses that run in that area. http://realoem.com/bmw/showparts.do?...05&hg=17&fg=30
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02-20-2014, 09:49 PM	#3
cwarren Captain 82 Rep 725 Posts Drives: 08 e92 Join Date: Jan 2012 Location: portland iTrader: (1)	#8 o ring leaked on my car after I changed OFHG could be leaking from there down on crank area . good thing if that's what it is its cheap and easy to replace. __________________ ptf MHD E85 /Hexon rr550 turbo's/PRE custom intakes/CP / bms dp's/hfs4 / er fmic/PSS/spec stage 2+/kwv2/steveAZ stage 3 lpfp /m3 control arms/powerflex black/MF LSD /fuel it port injection
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02-21-2014, 10:22 AM	#4
prepster Private First Class 12 Rep 102 Posts Drives: bmw 335i Join Date: Apr 2011 Location: ventura ca iTrader: (0)	Thanks for the help guys, it was a hose connecting to the engine that i had to remove to access the bottom bolt on the off on the left side, replaced the o-ring and seems to be doing fine now.
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02-21-2014, 10:58 AM	#5
eric@helix 208 Rep 1,161 Posts Drives: 01 M Coupe, 08 135i, '12 328i Join Date: Jul 2007 Location: Philadelphia iTrader: (0)	I was going to say... If you were leaking coolant from your crank pulley, something very unusual and very expensive was happening. Glad you got it fixed.
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