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Old 24-02-2018, 02:23 PM   #1
Cloud Strife
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Default Timing chain tensioner oil leak AUIII Wagon

My Falcon is an AUIII wagon and I am having some trouble finding the correct sized o ring for the timing chain tensioner bolt does anyone know what the o ring specs are ID and OD ?


ApparentlyV890066S and V890156S are the part numbers for the o rings but I have ordered the the oring (V890066S) and the outer diameter is too large.


My Tensioner bolt looks different to those pictured in a few other threads, this is what my tensioner looks like.


https://drive.google.com/uc?id=1NwKp...Yo7jREwadOBX4k
https://drive.google.com/uc?id=13er1...nTM_VZLE2YzcDV


This is a picture from another thread notice how my tensioner bolt looks different (no thread on the end that touches the tensioner)


https://drive.google.com/uc?id=1EmaU...1tg54_CKhghMGp


This is what makes me think the o ring is not the right one, when the o ring is located in the valley on the end of the retaining bolt the Outside diameter is too large for it to screw back in with the o ring.


This is my tensioner with the new o ring fitted (V890066S)


https://drive.google.com/uc?id=12Uae...vQnXsJcefZ1tDx


And this is a picture of my attempt to insert the tensioner bolt with the (V890066S) o ring fitted outside diameter seems to be too large.
When trying to insert the bolt the o ring wants to slide up the bolt and the the bolt doesn't go in far enough for the thread to bite in when the o ring is fitted.


https://drive.google.com/uc?id=11c3k...O84jLEOLNbuRdZ
https://drive.google.com/uc?id=1iQtD...as2gUuDuxpkKSf

Last edited by Cloud Strife; 24-02-2018 at 02:32 PM. Reason: Pictures not displaying correctly changed to links
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Old 24-02-2018, 02:59 PM   #2
XC50077
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Hi,
The large oring fits further along after the end of the thread and between the larger round part of tensioner. Replaces the worn/distorted seal shown in your pic. Remove the worn oring then fit the new oring in place.
Cheers
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Old 24-02-2018, 08:27 PM   #3
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Go to the How to's in the Tech section. There is a guide
UK
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Old 25-02-2018, 01:01 AM   #4
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Quote:
Originally Posted by XC50077 View Post
Hi,
The large oring fits further along after the end of the thread and between the larger round part of tensioner. Replaces the worn/distorted seal shown in your pic. Remove the worn oring then fit the new oring in place.
Cheers
Thats it mate thanks smh i feel like an idiot glad its done now heres a picture just in case it helps someone in the future.






Last edited by Cloud Strife; 25-02-2018 at 01:21 AM. Reason: resized pictures
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Old 25-02-2018, 01:37 AM   #5
Cloud Strife
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Quote:
Originally Posted by Uncle_Ken View Post
Go to the How to's in the Tech section. There is a guide
UK
Thanks Uncle_Ken I have read a few but in all the threads i could find most of the images aren't loading getting photobucket/image shack disabled third party hosting error place holders instead :(
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Old 25-02-2018, 09:32 AM   #6
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Smile Re: Timing chain tensioner oil leak AUIII Wagon

Great pics btw, and exactly what was needed here. The old saying is "a picture is worth a thousand words". My old school tech skills have left me with just the words.
Cheers
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Old 25-02-2018, 12:01 PM   #7
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Yes we are working on the Photobucket issue
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Old 25-02-2018, 06:02 PM   #8
Cloud Strife
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Quote:
Originally Posted by XC50077 View Post
Great pics btw, and exactly what was needed here. The old saying is "a picture is worth a thousand words". My old school tech skills have left me with just the words.
Cheers
I took a bunch of pics ill do up another tutorial and make a post tomorrow, I'm a computer tech so the pics and forum are the easy part for me glad theres lots of info here when i need to work on the wagon. :P
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Old 25-02-2018, 06:03 PM   #9
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Default Re: Timing chain tensioner oil leak AUIII Wagon

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Originally Posted by Uncle_Ken View Post
Yes we are working on the Photobucket issue
UK
UK Google drive is working well as an alternative for me.
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Old 25-02-2018, 07:01 PM   #10
Bill M
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Default Re: Timing chain tensioner oil leak AUIII Wagon

The filter has two O rings as well. This fits inside the tensioner main body.
These O rings are an odd size so don't expect to find them at Autobarn or Supercheap. I went to an O ring & seal specialty shop in Dandenong and got some Viton hi temp ones that are very close. Yet to do the job as the oil leak was more likely coming from the idler puller bolt.
cheers
Bill
Edit, the large O ring is for the timing cover to block front face, not the tensioner. My picture is incorrect. Apologies for the error.
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Last edited by Bill M; 17-03-2018 at 01:14 PM.
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Old 21-11-2018, 10:49 AM   #11
asimplelife
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Just a bit of an update if it's any use.
I had this leak so tried the supercheap o-ring pack which weren't really the right size for the small but I used the closest and nothing for the large so reused the existing with sealant.
However I think it's still leaking (although it may still be oil coming out of my degreased alternator)?
So rang Ford spares today to get the genuine o-rings.
V890156Sis now obsolete - this was the small one? (if so I will try again with a generic size).
V890066S is still available for $6.15 - this is the large one? (if it is and if it resolves my leak I might order a couple of spares).

A couple of other suggestions from other threads I'll just list anyway;
"i also added some ultra grey around the seal for added leak prevention."
"you can swap the larger o-ring for an alloy sump plug washer, tends to work a lot better"

Last edited by asimplelife; 21-11-2018 at 10:54 AM.
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Old 04-08-2019, 02:07 PM   #12
Greenmachine2000
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Hi Cloud Strife,

My tensioner looks exactly the same as yours, and definitely not the same as the one in the NASON Timing Chain kit.

Am interested in how you solved your o-ring issues.
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Old 04-08-2019, 07:30 PM   #13
asimplelife
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Default Re: Timing chain tensioner oil leak AUIII Wagon

Hasn't been back since those posts in Feb 2018 so it's not likely you'll hear back.


My first attempt without replacing the large o-ring has failed.
So I have bought a new large o-ring from Ford V890066S for $6.15
And I'll use a Supercheap standard one for the small.
Have bought the right silicone this time too.
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