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Timing chain tensioners leaking

Tiny
ARIANADANIELLE5345
  • MEMBER
  • 2003 FORD EXPLORER
  • 4.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 10 MILES
Can I change just the washer on the timing chain tensioners? They’re brand new, but one of them didn’t come with a washer and ford said I didn’t need it. I’m thinking I’m going to add one because it’s leaking. The other one came with a very thin washer, so I want to change it to a thicker copper one. If I can do this without replacing the tensioners, what is the procedure? It has to be in TDC when I remove it, right?
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Monday, March 28th, 2022 AT 8:21 AM

8 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

They are not washers; they are O rings to keep it from leaking.

I attached pictures for you of the tensioner and it requires an O ring on each one.

Roy
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Monday, March 28th, 2022 AT 9:44 AM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 310 POSTS
Yeah, but the one that came with my tensioner isn’t working. So, can I replace it with a thicker cooper one?
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Tuesday, March 29th, 2022 AT 1:14 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It must be rubber O-ring, not a washer.

Look at the pictures I sent for reference.

Make sure they are the correct tensioner as well.

Roy
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Tuesday, March 29th, 2022 AT 6:36 PM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 310 POSTS
It has never had a rubber O-ring. The new one that the ford dealership gave me came with one that wasn’t rubber.
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Wednesday, March 30th, 2022 AT 6:14 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Double check and make sure they are correct. There were 2, 4. 0 motors listed for the year.

Roy
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Wednesday, March 30th, 2022 AT 8:19 AM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 310 POSTS
I gave them my VIN before I bought the tensioner. Mine look like the one in the image below.
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Saturday, April 2nd, 2022 AT 9:33 AM
Tiny
ARIANADANIELLE5345
  • MEMBER
  • 310 POSTS
I have a 4.0 V6 SOHC engine. Here’s a pic of the tensioner that’s leaking. You can see that it’s filling up the valley with oil.
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Saturday, April 2nd, 2022 AT 9:41 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It does not make sense.

I still think you need the ones with the o ring, not a gasket.

Roy
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Tuesday, April 5th, 2022 AT 9:06 AM

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