Timing chain tensioner came loose after track day

Patbeach07 · Wed, Jun-23-2010, 03:32:57 AM

Like the title says my timing chain tensioner came loose during or right after a track day. The result was a huge oil leak and smell of burning oil.

Did that happened to anyone? My car has 97K miles.

My tensioner is fine and the car is now running perfect with no leak but I was just asking myself if I was the only one to experiment this situation...

alanbmoore · Wed, Jun-23-2010, 05:39:49 AM

I don't understand. Are you sure you mean the tensioner? If it came loose, I would expect clattering, poor running, possibly catastrophic engine damage... I wouldn't expect it to go away by itself?

nolocontendere · Thu, Jun-24-2010, 02:43:05 PM

sounds like a vanos failure. check your vanos exhaust gear closely to see if one of the prongs sheered off and ran through the timing chain

Ascetic777 · Sun, Jun-29-2014, 12:09:06 AM

Bumping an old thread, but I just discovered this too. Not a massive oil leak, but a dribble. Just did an inspection 2 and my exhaust hub is fine. Hmm...

Wed, Jun-23-2010, 03:32:57 AM	#1
Patbeach07 Registered User Join Date: Nov 2008 Posts: 39 Reputation: 0 Location: Montreal	Timing chain tensioner came loose after track day Like the title says my timing chain tensioner came loose during or right after a track day. The result was a huge oil leak and smell of burning oil. Did that happened to anyone? My car has 97K miles. My tensioner is fine and the car is now running perfect with no leak but I was just asking myself if I was the only one to experiment this situation...

Wed, Jun-23-2010, 05:39:49 AM	#2
alanbmoore Registered User Join Date: Mar 2009 Posts: 757 Reputation: 0 Location: Orlando	I don't understand. Are you sure you mean the tensioner? If it came loose, I would expect clattering, poor running, possibly catastrophic engine damage... I wouldn't expect it to go away by itself? __________________ -Alan '04 M3 - SMG '94 E36 track car '87 Mazda RX7 Hotchkis sways - 2.5deg front camber - 18x9.5 VMR CSL reps - Nitto NT-01 275s - PFC06's - Schroth Quickfit

Sun, Jun-29-2014, 12:09:06 AM	#4
Ascetic777 Regestrated Useder Join Date: Feb 2011 Posts: 519 Reputation: 0 Location: Warshington	Re: Timing chain tensioner came loose after track day Bumping an old thread, but I just discovered this too. Not a massive oil leak, but a dribble. Just did an inspection 2 and my exhaust hub is fine. Hmm...

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Thu, Jun-24-2010, 02:43:05 PM	#3
nolocontendere Registered User Join Date: May 2005 Posts: 2,187 Reputation: 0	sounds like a vanos failure. check your vanos exhaust gear closely to see if one of the prongs sheered off and ran through the timing chain