HELP! Valves Stuck!

dlandon · 11-28-2012, 11:11 AM

Hi guys, so I started out with a bad miss on a cold start. Pulled P1345 & P1349 directing me to cylinders 2 & 4 with cutoff.

I also noticed some oil leaking around the vanos, cam sensors, and some build up when I pulled the CCV hoses. I decided to yank the manifold and replace some other hoses while I was there, only to find that the valves were actually open on cylinders 2 & 4. Pictures below illustrate what I'm talking about. Excuse the poor quality, it's hard capturing valves with an iPhone.

I'm just trying to figure out some next steps here. I'm dreading pulling the head. What do you guys reckon? Bad springs, lifters?

Car is a 2001 330ci with only 82,000km or 51,000 miles.

jared_wiesner · 11-28-2012, 05:22 PM

Do the valves not close as you rotate the engine? They must or they would be bent. Given that the firing order goes from 2 to 4, it makes sense that they would both have their valves open to some extent at the same point in the cycle.

jared_wiesner · 11-28-2012, 05:37 PM

See the two sets of cam lobes both pointing roughly up. Those correspond with cylinder 2 and 4.
(I apologize for the blurry picture, I had to zoom way in on a pic from my cam install DIY)

dlandon · 11-28-2012, 05:54 PM

I thought that might be the case, but wasn't sure. I'll put everything back together and get a compression / leak down test done to make sure it's all sound.

Thanks!

BimmerBrakes · 11-28-2012, 07:03 PM

they look normal...

SoloII///M · 11-28-2012, 07:54 PM

This thread has much win.

11-28-2012, 11:11 AM	#1
dlandon Registered User Join Date: Aug 2011 Location: Vancouver Posts: 7 My Ride: 330ci View My Garage	HELP! Valves Stuck! Hi guys, so I started out with a bad miss on a cold start. Pulled P1345 & P1349 directing me to cylinders 2 & 4 with cutoff. I also noticed some oil leaking around the vanos, cam sensors, and some build up when I pulled the CCV hoses. I decided to yank the manifold and replace some other hoses while I was there, only to find that the valves were actually open on cylinders 2 & 4. Pictures below illustrate what I'm talking about. Excuse the poor quality, it's hard capturing valves with an iPhone. I'm just trying to figure out some next steps here. I'm dreading pulling the head. What do you guys reckon? Bad springs, lifters? Car is a 2001 330ci with only 82,000km or 51,000 miles. Last edited by dlandon; 11-28-2012 at 11:13 AM.

11-28-2012, 05:22 PM	#2
jared_wiesner Registered User Join Date: Aug 2009 Location: Ontario Canada Posts: 583 My Ride: 1999 328i View My Garage	Do the valves not close as you rotate the engine? They must or they would be bent. Given that the firing order goes from 2 to 4, it makes sense that they would both have their valves open to some extent at the same point in the cycle. __________________ Check out my band - The Marked 1999 BMW 328i (Daily Driver) - m54b30 intake manifold, ebay headers, Rebirth Motorsports CAI, Rogue Engineering underive pulleys, Epic Motorsports Software, Custom 3 inch exhaust with Burns Merge, Schrick 264/248 Cams 1967 Buick Skylark - 430 Buick Big Block Swap. Last edited by jared_wiesner; 11-28-2012 at 05:32 PM.

11-28-2012, 05:37 PM	#3
jared_wiesner Registered User Join Date: Aug 2009 Location: Ontario Canada Posts: 583 My Ride: 1999 328i View My Garage	See the two sets of cam lobes both pointing roughly up. Those correspond with cylinder 2 and 4. (I apologize for the blurry picture, I had to zoom way in on a pic from my cam install DIY) Attached Thumbnails __________________ Check out my band - The Marked 1999 BMW 328i (Daily Driver) - m54b30 intake manifold, ebay headers, Rebirth Motorsports CAI, Rogue Engineering underive pulleys, Epic Motorsports Software, Custom 3 inch exhaust with Burns Merge, Schrick 264/248 Cams 1967 Buick Skylark - 430 Buick Big Block Swap. Last edited by jared_wiesner; 11-28-2012 at 05:38 PM.

11-28-2012, 07:54 PM	#6
SoloII///M Registered User Join Date: Mar 2005 Location: Columbia, MD Posts: 222 My Ride: Many View My Garage	This thread has much win. __________________ John V '03 330i ZHP 6sp street car '02 330Ci 5sp race car

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11-28-2012, 05:54 PM	#4
dlandon Registered User Join Date: Aug 2011 Location: Vancouver Posts: 7 My Ride: 330ci View My Garage	I thought that might be the case, but wasn't sure. I'll put everything back together and get a compression / leak down test done to make sure it's all sound. Thanks!

11-28-2012, 07:03 PM	#5
BimmerBrakes The Brake Newbie! Join Date: Feb 2010 Location: DFW, Tx Posts: 1,146 My Ride: 2005 ZHP BMW View My Garage	they look normal...