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Old 29-07-2006, 07:50 PM   #1
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Default How To Change Diff Oil

Hi Guys,

Just posted a "how to" change diff oil.

Here's the link.

http://www.fordforums.com.au/showpos...7&postcount=42

I'm about to post one on how to clean out the ISC valve, but that'll wait half an hour or so as dessert is beckoning! LOL!

Ok back again, the cake and chocky mousse was excellent.

Here's the link to the ISC valve clean "how to."

http://www.fordforums.com.au/showpos...9&postcount=43

Cheers,

GK

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Last edited by GK; 29-07-2006 at 08:32 PM.
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Old 29-07-2006, 08:30 PM   #2
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well done...another great DIY service from GK
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Old 29-07-2006, 08:39 PM   #3
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Well done GK.
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Old 30-07-2006, 12:03 AM   #4
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Its great having pictures of what exactly you are talking about.
G.K. you should think about working for Haynes or Gregories !!!!!
Just a quick note about IRS V8's, the damn filler plug is at the side ( rather than back of diff ) and the exhaust runs close by so you can't use the the 1 litre pack with the refill hose. You have to use a small hand pump with extension hose on it to get the Diff oil back in
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Old 30-07-2006, 08:30 AM   #5
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yeah, i was gonna say, im due for a diff oil change soon when i finish running the diff in, so will post the IRS addition, or email to GK so he you can update him.. us IRS's have the diff mounted to the car , so you cant jack it up there, and as said before, the filler plug is in different locations
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Old 30-07-2006, 08:46 AM   #6
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Thanks for posting the additional info for IRS. I didn't consider this as both my AU's are live rear end.

Cheers,

GK
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Old 30-07-2006, 11:58 AM   #7
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Just about to change the oil in my diff so it was great to see your pics and guide.

I was thinking of putting an additive in mine when i change it, did it make any difference in yours?
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Old 30-07-2006, 01:14 PM   #8
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Quote:
Originally Posted by 99FalconS
Just about to change the oil in my diff so it was great to see your pics and guide.

I was thinking of putting an additive in mine when i change it, did it make any difference in yours?
Well worth it if you do, Chris from Bluepower gave me a small bottle 250ml i think, as he noticed clunking from the diff. After adding it no more noise. Penrite was the brand.
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Old 30-07-2006, 04:38 PM   #9
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Quote:
Originally Posted by REDXR8BLOKE
Well worth it if you do, Chris from Bluepower gave me a small bottle 250ml i think, as he noticed clunking from the diff. After adding it no more noise. Penrite was the brand.
I used Nulon G70, but have been driving the wagon all weekend, so after an 84km round trip to work and back tomorrow, I'll have the answer! LOL!

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Old 30-07-2006, 05:44 PM   #10
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You have to use the fully synthetic diff oil in the IRS diffs and they specifically say don't use any additives
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Old 30-07-2006, 06:31 PM   #11
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what does it achive cleaning the isc valve and can you use wd40 or does it have to be carby cleaner??
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Old 30-07-2006, 07:21 PM   #12
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Quote:
Originally Posted by 2002auxr6
what does it achive cleaning the isc valve and can you use wd40 or does it have to be carby cleaner??
Cleaning it can smoothe out a rough idle. I don't think Wd40 would dislodge the deposits, but I may be wrong. I thought it was more of a lubricant than a cleaner.

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Old 31-07-2006, 07:34 AM   #13
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GK i had a quick browse and couldnt find how you removed the old oil..
ive seen it done before and i think you undo the bottom bolt a little or something??
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Old 31-07-2006, 08:19 AM   #14
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yeah .... undo the bottom bolt .... also pour new fluid through it until it starts coming out clean through the bottom bolt hole ... then put bolt back in.
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Old 31-07-2006, 09:15 AM   #15
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thats some great work there George! ever the handy man with the camera! may i just ask, where abouts would one get said oil and addative and how much will it set me back? my car is due for a service soon so i might as well take advantage of it being up on the hoist and do the diff too.
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Old 31-07-2006, 03:18 PM   #16
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Quote:
Originally Posted by ClassicAU
thats some great work there George! ever the handy man with the camera! may i just ask, where abouts would one get said oil and addative and how much will it set me back? my car is due for a service soon so i might as well take advantage of it being up on the hoist and do the diff too.
SuperCheap is where I got the diff oil and the additive. From memory the oil was about $18 for 2 x 1 litre bottles and the additive was about $6ish I think.

Cheers,

GK
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Old 31-07-2006, 05:49 PM   #17
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ERF!!!

i paid about 75 bucks for my oil at mates rates!

damn IRS has to have the best :S
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Old 31-07-2006, 05:55 PM   #18
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Castrol SAF XA was $30 a litre and needs 1.65 lires in IRS diff.
I bought it it at Repco at the lat 20% off sale so total was $48 for 2 litres.
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Old 01-08-2006, 08:11 PM   #19
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all i know is mine was penrite in a silver bottle.



its good stuff
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Old 02-08-2006, 09:50 AM   #20
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What is the additive used for???
Also my diff whines a fair bit, what oil / additive should i use to quieten it down a tad???
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Old 02-08-2006, 04:44 PM   #21
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my car has done 150,000 clicks does the oil need to be changed? i reckon it would need changing!
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Old 02-08-2006, 04:58 PM   #22
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Quote:
Originally Posted by JoesAu
my car has done 150,000 clicks does the oil need to be changed? i reckon it would need changing!
Depends when the last time it was changed, if it has done that many klms with out be changed that is :
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Old 03-08-2006, 07:08 PM   #23
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i wouldnt know, ive had the transmission serviced.
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Old 03-08-2006, 07:18 PM   #24
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Quote:
Originally Posted by JoesAu
i wouldnt know, ive had the transmission serviced.
Most blokes here do the transmission oil and filter change every year or 20,000 odd kays.

That should keep things going nicely!

GK
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Old 24-05-2012, 06:31 PM   #25
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Default Re: How To Change Diff Oil

Should you lift the rear end when adding diff oil?
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Old 24-05-2012, 08:34 PM   #26
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Default Re: How To Change Diff Oil

Quote:
Originally Posted by coxy-25
Should you lift the rear end when adding diff oil?
You don't have to, but as I said in the "how to" I do, to avoid the overflow.

Many people leave the diff as is and when the oil comes back out the fill hole, they know it's full. The only problem with that as I see it, is if they have their car on an incline, they might not be able to get the correct amount of fluid back into the diff.

Also, having had the stink of diff oil (one of the worse smells there is IMO) on me for a day, I prefer the minimum amount of spillage.

Suit yourself though, whatever works, works!

As long as you have the proper amount go back in, that's the main thing.

Cheers,

GK
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