What is this part? (oil leaking) - Toyota Nation Forum : Toyota Car and Truck Forums
9th Gen Corolla/1st Gen Matrix (2003-2008) 9th generation Corolla and 1st generation Matrix discussion.

 
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#1 Old 08-06-2012, 04:38 PM
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Question What is this part? (oil leaking)

I was under my 07 Matrix and on the passenger side I noticed oil leakage. I traced it as high in the engine as I could and think it's coming from under this "plate" labelled "UST C19" attached with two nuts.

You can see it in these 3 photos that were taken underneath the car just further back than the oil pan, looking upward:

photo 1 show it from a distance so you can get your bearings
photos 2 is a close-up from the same angle
photo 3 is a different angle taken from closer to the front passenger tire.

https://picasaweb.google.com/thisism...eat=directlink

What is this "plate", can it leak oil, and does it have some sort of gasket under it that I can replace?

Thanks in advance,
Lance
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#2 Old 08-06-2012, 10:24 PM
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I think I can answer my own question... is it the timing belt tensioner???

Lance
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#3 Old 08-07-2012, 09:40 AM
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On the right track - remember no timing belts in this generation of engine, so that part would be the timing "chain" tensioner - when you ask for the replacement part.

Pretty common for those to leak around the o-ring. Especially if the engine is closing in or has over 100K miles (160k km).

2002 Toyota Corolla S, 1.8L 1ZZ-FE VVT-i
2003 Toyota Matrix XRS, 1.8L 2ZZ-GE, VVTL-i (RIP)
2009 Toyota Matrix XRS, 2.4L 2AZ-FE VVT-i
2009 Toyota RAV4 Limited, 2.5L 2AR-FE Dual VVT-i
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