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Old 10-06-2015, 07:41 AM   #1
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Join Date: Dec 2009
Location: Orange County, CA
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another oil leak..?

My engine has a small oil leak around the vicinity of the tandem oil pump (front of the engine) on the 1-3 cylinders side.

Looking at the PET, I found two large o’rings (95 x 2.5) that go between the oil pump and between the oil pump and the tandem pump, are these prone to leak?

Other leaks that have been already addressed: About a year or two, I had a leak on the same side (1-3 bank) that ended being the AOS, then recently another (large) leak that was caused by the accordion hose that connects the AOS with the breather valve (2-6 bank).

Thank you in advance for your comments!

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