When replacing the oil cooler, do I have to get a new gasket, or can I use RTV sealant?

Tiny
CRAZYDOG72
  • MEMBER
  • 2014 CHEVROLET CRUZE
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
I replaced the thermostat housing, and the oil cooler seal is deteriorated. Do I have to get a new gasket, or can I use RTV sealant?
Saturday, February 24th, 2024 AT 5:08 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi,

I believe you are referring to the oil cooler pipe. That is an O-Ring and needs to be replaced. If you use RTV, it will not last.

Take a look at the pic below. Is that what you are referring to?

Let me know.

Joe

See pic below.
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Saturday, February 24th, 2024 AT 8:24 PM
Tiny
CRAZYDOG72
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Yes, it is. Do you know the part number or the diameter of the o ring? I don’t want to take off the oil cooler pipe, if I don’t have to.
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Saturday, February 24th, 2024 AT 8:40 PM
Tiny
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I’m not sure which is the outlet (outer) side. I need the o ring that goes between the flange and the thermostat housing. Is this the right part?
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Sunday, February 25th, 2024 AT 6:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

Yes, that appears to be correct. When you install it, first lubricate it with coolant. Once you do that, then you can install it.

Let me know how things turn out for you.

Joe
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Sunday, February 25th, 2024 AT 6:31 PM

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