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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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incurable oil leaks - 4age
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Thu, 22 January 2004 03:40
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ok, i have oil leaking from my dizzy out the side of my small port 4age. So i did the right thing and went and bought brand new oil seals and O rings, ripped it all out, cleaned all the surfaces, the entire side of my block is coated in oil... hmmm so anyway while i was there i ripped off the cam covers and the centre cover, the plug channel was chokka's full of oil... hmmm again.
so i checked the cam cover seals, they are near new anyway, cleaned all the surfaces, bolted everything down tight
and the fucker still leaks - esp out the dizzy, when im decel from high revs i can strongly smell burning oil, this is oil dripping on my headers.
after long periods of driving it gives me a headache from the fumes.
so.. what do i do!? For a motor that used to have no oil leaks, its sure as hell sprung a few now.
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Location: Brisbane
Registered: February 2003
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 03:52

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is crankcase ventilation working properly?
the PCV valve should be attached to vacuum source or a catch can
is the crankcase breather able to see atmspheric pressure air?
if the case is pressuring up, it'll squeeze oil and fuel-laden oil vapour out any gaps it can find.
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 04:02

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thought of that also, i have a oil catch can which breathe's quite well, so i doubt thats much of an issue.
where is the PVC valve on the small port anyway?
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I supported Toymods
Location: melbourne.victoria.austra...
Registered: June 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 04:27

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there isn't one - the pipe b/w the inlet side cam box and the inlet manifold acts as it.
simon you might want to consider a second breather in the exhaust side cambox cover - esp at high revs this can be a big help!
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 04:36

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time to drill a hole, weld on some pipe and hope for the best
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Location: Sydney
Registered: January 2004
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 05:11

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I think my 4age is a big port but im guessing same dizzy. I had similar problem - replaced o ring and still leaked from dizzy, onto exhaust manifold and would smell. There is an internal seal in the dizzy - will show you some pics when I get website otherwise can email you them. I had to pull the dizzy apart which i have couple of pics of, this involved drilling out the lock pin for the meshing gear..bit of a job. The seal was 20mm OD and 10mm id and 5mm thick - i replaced it withone that was 7mm thick from Consolidated Bearings (CBC i think) for 5 bucks. The seal had turned hard and hence wasnt doing its job. This fixed the problem, no more leaks, i also nipped up my rocker cover bolts cause i thought a bit of oil was leaking there too. I do have a lot of blowby though - when remove oil filler a shit load of air can be felt - is this normal? Yours sounds a bit extreme but im pretty sure that seal in yours would be hard, but may not fix all your probs.
I found a place in VIC that for $150 would have replaced the seal in the dizzy, you could send it there and get it sent back..they talked up the job a bit though and decided to do the job myself with the help of someone who was handy. hope you sort it all out
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 05:15

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thats exactally what i want to know.
except im a lazy prick and that sounds like a fair wack of work, i might get the seals and get a mate to help me out with it.
im sure he'll read this and be inclined to agree
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I supported Toymods
Location: sydney.au
Registered: August 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 05:16

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Grega wrote on Thu, 22 January 2004 15:27 | there isn't one - the pipe b/w the inlet side cam box and the inlet manifold acts as it.
simon you might want to consider a second breather in the exhaust side cambox cover - esp at high revs this can be a big help!
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or jest get another intake side cover and use that one
it will have 2 oil filler caps, but its easy as to install
lots of JDM cars do this, especially the tuning shop "RUNNING FREE"
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 05:20

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that sounds so dodgy! - i'll do that then.
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Club Member
Location: sydney
Registered: May 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 05:21

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if your running extractors you may want to make up a heat sheild around the dizzy the heat causes the seals to dry up and leak as well
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 05:25

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whats a good way of making one and attaching it to manifold? i was planning on making one anyway to sheild the clutch lines (have aussie bellhousing) from the exhaust
tips?
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Location: Melbourne
Registered: September 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 06:21

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Dont all 100kw 4age's come with heat sheilds on their dizzies? I know mine has one.
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I supported Toymods
Location: melbourne.victoria.austra...
Registered: June 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 06:27

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the 86kw also come with heat sheilds.
FWIW if you use two of the inlet side cam box covers the breather will be in the middle of the motor (where the plugs are in the valley) which ain't much good to you...
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Location: syd- green valley
Registered: May 2003
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 06:28

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dude can u post up how u get on wif it , cause mine isn't there yet but its on its way, would like to knoe what u done and prices...thanks.
small leaks here and there. from the dizzy and from under the cam cover dont know where it is coming from but it is always moist.
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 07:16

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no heat sheild on this dizzy so i dunno eh
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I supported Toymods
Location: sydney.au
Registered: August 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 07:20

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oh your running a 100kw head?
shit the twin inlet covers wont work then
only bigport heads can i think
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Location: Sydney
Registered: May 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 07:49

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I have a heat shield under my dizzy and it gets so hot from the extractors that any oil on it begins to smoke! Judging by the above posts I could either:
a - fix the oil leak
b - put another heat shield on to keep the oiled one cool enough.
hmmmm
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Location: Mentone
Registered: May 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 08:07

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You could get some 3in pipe and make a cold air pipe to cool the heat sheld. Just cut a hole in your fender and pick up cool air from the front of the car. This shouldkeep your oil covered heat shield nice and cool. You might even make a few extra kw as the cool air has moke oxygen.
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Location: neverland
Registered: September 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 08:14

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check the inner dizzy seal that will prob be the one leaking um the auto elec does that sort of stuff. dont know what he would charge though. hes not no rip off merchant though his name is fred if you wanna ring him its 9674-4176
brad
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Location: Melbourne
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 08:16

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Hey Sime,
I had the same problem with my 100kw (oil leaking problem), i replaced every seal and gasket top to bottom and it still leaked.. it ended up being one of the rocker cover nuts had gone on slightly crooked (looked like it was on perfectly), which inturn stuffed the little rubber washer thingo that goes into the stud holes in the rocker cover, oil was pumpin outta there while driving and filling up the cam valleys then pouring down the front/back and sides of the engine.. Check all the nuts on top I replaced all the rubber thingos and nuts, no more leaks.
Cheers
Gaz
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Location: Sydney
Registered: January 2004
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 08:53

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You will have to fix the oil leak I'd say - mine had a little tray under dizzy..heat shield maybe. Even if it doen't get hot enough to burn he oil on that tray I found that whenever i went up a steep hill or cornered the oil fell off onto the exhaust and burning smell. Couldnt work it out fro a while. Yeah i think auto elec may do it as brad said - i have pics of it - give us your email simon and will send them - cant get webpage set up yeet so cant put them in post as yet
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Location: NSW, East Coast
Registered: July 2003
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 10:09

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I have a bigport and im putting 2 inlet cam cobers on tommorrow, we'll see if that helps.
Steve
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 10:17

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i'll give it a shot, will try and get a bigport cover and put it on my small port
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Location: Sydney
Registered: January 2004
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 10:25

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hey simon - check your email - is sent you the dizzy pics. Hope they help. Have you definatrly seen oil coming out near the distributor?
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Banned user
Location: ADELAIDE - The Drift City
Registered: July 2002
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Re: incurable oil leaks - 4age
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Thu, 22 January 2004 10:54

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thank you VERY much mate, thats just what im after!
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Location: Brisbane
Registered: May 2003
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Location: Sydney
Registered: January 2004
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Re: incurable oil leaks - 4age
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Fri, 23 January 2004 01:56

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Here are the pics i already gave simon - i hope they work ok - just started setting up dodgy website.




And the old seal

I was trying to get the rotor arm off for a while when i was stuggling to find how to pull it apart - turned out didn't need to at all.
Can somebody please let me know if the pics come through - thanks
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Location: Mentone
Registered: May 2002
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Re: incurable oil leaks - 4age
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Fri, 23 January 2004 02:54

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Pics work fine. Make sure when you replace the seal clean the shaft where the seal runs on or it will chew out a new seal and you will have to do it again. The shaft needs to be smooth for it to work.
Brad
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Location: Mentone
Registered: May 2002
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Re: incurable oil leaks - 4age
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Fri, 23 January 2004 02:55

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Pics work fine. Make sure when you replace the seal clean the shaft where the seal runs on or it will chew out a new seal and you will have to do it again. The shaft needs to be smooth for it to work.
Brad
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Location: Melbourne
Registered: May 2002
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Re: incurable oil leaks - 4age
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Fri, 23 January 2004 03:15

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I changed the oil seal in my old dizzy, i used a 2mm roll pin instead of copper rod.
Any bearing supplier should have both these bits in stock. All up cost of around 7 dollars
Daniel
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Location: Sydney
Registered: January 2003
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Re: incurable oil leaks - 4age
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Mon, 30 May 2005 08:37

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Heres diggin up an old thread...
My distributor on my 4AGE also leaks... can anyone give me the procedure to change the seal, it doesnt look too hard ? Where can I get the new seal and will I have to adjust timing after it has been replaced ?
Cheers!
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Location: Brisbane
Registered: May 2002
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Re: incurable oil leaks - 4age
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Mon, 30 May 2005 11:29

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HighRolla has pretty well given all the info you could need.....!!!!
as I see it (I'm not a 4age know all)
-remove dizzy
-there is a gear that is held in via a pin. remove the pin and take the gear off.
-remove the shaft from the dizzy
-remove seal
-replace seal
-reinstall shaft
-refit lower gear and replace pin that secures it
Cheers
Wilbo
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Location: Penrith
Registered: February 2005
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Re: incurable oil leaks - 4age
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Tue, 31 May 2005 00:16

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Finally I've found someone with the the same problems as me.
I've actually got a custom made breather on the exhaust side camm cover wich breathes well but I still have problems with oil leaking from my dizzy under boost. It must still be pressurising hard cause about 12 months ago under about 17 pounds of boost I actually spat the dizzy out of the head (was only in by 1 bolt...never again!)
Now i've got a better breathing oil catch can instead of those shitty little breather filters and i've replaced the outer 'o'ring on the dizzy and the bastard still leaks from the centre. I'm going to have to replace the seal on the inside cause it leaks strait out onto my turbo and stinks!
If you have this problem fix it before you have the hastles that I did.. camm seals, rocker cover gasket, dizzy poped out e.t.c.
$5 seal sounds like the way to go.
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Location: Sydney
Registered: January 2003
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Re: incurable oil leaks - 4age
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Tue, 31 May 2005 03:34

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Can I use the same securing pin that I took out or do I need a new one ?
Do Toyota stock the seal or do I have to get from CBCs ?
Thanks for the info!
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Location: Brisbane
Registered: May 2002
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Re: incurable oil leaks - 4age
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Tue, 31 May 2005 05:06

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BootySlap wrote on Tue, 31 May 2005 13:34 |
Do Toyota stock the seal or do I have to get from CBCs ?
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Prbly, but CBC's etc would most likely be much cheaper!
Cheers
Wilbo
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Location: Sydney
Registered: January 2003
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Re: incurable oil leaks - 4age
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Mon, 06 June 2005 04:59

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I just rang CBC Smithfield and they dont have 20x10x7mm orings! HighRolla can you tell me what CBC branch you got the O ring from?
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Location: Darwin, Australia
Registered: March 2005
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Re: incurable oil leaks - 4age
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Mon, 06 June 2005 05:19

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They're not really o-rings as such I don't think?
more of a 'normal' oil seal with a internal spring sort of holding the rubber to the shaft.
Did you take the seal into CBC and ask for 'one of these' or call up for a 20x10x7 o-ring? because I know they sure wouldn't have an o-ring in that size.
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Location: Sydney
Registered: January 2003
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Re: incurable oil leaks - 4age
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Mon, 06 June 2005 05:33

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I just rang them up for an O-ring because I wanted the part before I start the job but maybe I should pull it out and get them to take a look, thanks !
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Location: Castle Hill
Registered: August 2003
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Re: incurable oil leaks - 4age
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Tue, 07 June 2005 03:24
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I have my dizzy sitting infront of me right now, I have pulled it all apart, but I don't have a drill, is there any other way to get that pin out? I have been bashing it with a screwdriver and a hammer and it doesnt seem to be moving?
thanks.
-Whitchy-
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