Help ,oil Filter leaking??
 

Ive only owned the WRX 2 weeks, last week I changed the oil and filter. The filter that was on there was a Ryco Z495,I couldn't get to a Subaru outlet to buy a genuine filter so I did some research and many were saying next best option is the [B]Ryco Z436 [/B]so I fitted that.

The Z495 Filter that was on there did not leak a drop but after fitting the smaller Z495 one it started leaking out of the O Ring on the Filter??. Ive cleaned it off twice and double checked= definitely out the Filter O Ring.

I keep hearing guys saying that sometimes folk leave the old Filter O ring in the Housing by mistake then it leaks but on mine, the filter housing [B]HAS NO O- RING RECESS!??.[/B] It mates up to a flat surface on the Filter housing?.

did you apply a little bit of clean oil to the o-ring on the filter before fitting?

[QUOTE=Alternate;749419]did you apply a little bit of clean oil to the o-ring on the filter before fitting?[/QUOTE]

Yes I allways do, Ive never had an Oil Filter leak on any car Ive ever owned and I'm 40! so had a few cars now.

All I can think of is maybe I did it up a little too tight,so I backed it off a tiny bit but will have to see what happens tomorrow, though the leak was reasonably bad....

An oil filter should have a rubber I ring recess on it. Sometimes to I ring gets stuck to the oil cooler.it really shouldn't be anything else. If you've done everything right, unless the sump plug washer is leaking ?

[QUOTE=Marti;749421]An oil filter should have a rubber I ring recess on it. Sometimes to I ring gets stuck to the oil cooler.it really shouldn't be anything else. If you've done everything right, unless the sump plug washer is leaking ?[/QUOTE]


I keep hearing about the O Ring left behind in the Cooler/ Housing but for some reason mine 100% HAS NO RECESS IN IT?? the filter's O - ring mates up to a Flat Surface yet seems everyone elses has a Recess in it??? from what I'm reading online, I checked the Sump Plug area and its fine.

Indeed the filter has the Recess for the O Ring but not the Cooler,I don't see how anyone could not see an O ring stuck to the Cooler, not on mine anyways..

Your oil cooler it's self has an I ring further up. They might be talking about that.

did you clean down the oil cooler before you put the new filter on?
in my experience non gen filters do tend to leak alot more of the genuine ones

Guys I cleaned all the surface of it prior to fitting, the higher up Oil Cooler ring on mine is fine, ive checked a few times after cleaning the area.

Sounds like I need to get a genuine filter then ASAP

Some of the smaller aftermarket filters bottom out on the thread before the O ring fully contacts the cooler.
I would be checking that if the leak is still bad.

What year rexy you got? Im pretty sure the Pre-MY00 are suppose to be Z495. Z436 are for the later models??

Also the oil filter housing surface is suppose to be flat, no recess, only the filter has a recess for the O Ring. What they mean is when you remove your old filter the O ring from the old filter gets left behind on the oil filter housing therefore placing two O ring filters (usually only happens on model of vehicles when you can see the housing).

[QUOTE=RXqME;749462]What year rexy you got? Im pretty sure the Pre-MY00 are suppose to be Z495. Z436 are for the later models??

Also the oil filter housing surface is suppose to be flat, no recess, only the filter has a recess for the O Ring. What they mean is when you remove your old filter the O ring from the old filter gets left behind on the oil filter housing therefore placing two O ring filters (usually only happens on model of vehicles when you can see the housing).[/QUOTE]

mine was made in late October 2000 but they list it as an MY01 for some reason?

[QUOTE=django;749470]mine was made in late October 2000 but they list it as an MY01 for some reason?[/QUOTE]

in October of each year subaru release the next year/model.

Your car is one example of this as you have a 10/2000 MY01

another example would be a 10/2005 MY06, a pignose with a 2005 build date, where most 2005 build (pre October) are a peanut.

I hope this gives some clarification

[QUOTE=django;749470]mine was made in late October 2000 but they list it as an MY01 for some reason?[/QUOTE]

So you have a my01 bugeye just like me same build date too


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The old filter I took off recently would not budge so had to remove it with a screwdriver, I'm starting to wonder if Ive managed to slightly bend the filter mating surface on the Oil Cooler!?. I hope not!

I'll have to buy a Geniune Subaru Filter and see if it stops leaking, had another go trying to get the Ryco one to seal but it still leaks!

no chance you would of bent the mating surface
non gen filters are just shit house to be honest, by the sounds of it you may be over tightening your filters also

I've always used RYCO or repo filters on my Subaru and never had a problem. Geniune isn't always the way mate, specially in this case. To me sounds like you either got the wrong filter and should get what came of it originally or you have over tightened the filter. All filters should be done up by hand, never use a tool to tighten them.

for the extra $5-$10 its a no brainer wether to go genuine or aftermarket imo

Yeah to some it can be a inconvenience to try and get a genuine filter from Subaru, especially when there part department is only open Monday to Friday, with the odd places opening Saturday. While repo or auto pro are open 7 days a week till 5pm and there's usually one locally. All I'm saying is why spend the extra $5-$10 on genuine? When you can buy aftermarket which works exactly the same and just as we'll, for $5-$10 less. Pretty much a no brainer for me.

Things like seals and gaskets I always buy genuine as some after markets can be more expensive or not made right.

I gave in and went to Subaru today and paid $20 for a genuine filter, fitted it up, went for a 10 min thrash and had another look= seems to be sealed now but will need more testing to know for sure.

I looked over everything again today and have no idea why the Ryco one persited to leak!???. Its so much easier and much more convenient ,plus cheaper to buy the Ryco filters yet I seemed to have bother with the one I bought?..

I've never had a problem with either the ryco 495 or 436, but have recently opted to go genuine, because there really isn't much difference in price. If you're doing servicing yourself, you will have to get bits from Subaru parts anyway as repco does not stock or produce some things any more ie cabin filters or oil filter washers.
Most, if not all of the better known workshops go with genuine parts.
Just buy 3-4 at a time and the inconvenience no longer exists, you're golden.

the fact that the oem ones are smaller so they are further away from the headers is the no brainer part for me

[QUOTE=Strubaru;749762]the fact that the oem ones are smaller so they are further away from the headers is the no brainer part for me[/QUOTE]

Well the [B]Ryco Z436[/B] one I fitted is the same size as the Geniune Subaru Filters...

Z436 is the wrong filter for your car.

Yep Z495 for a Bug eye. I now don't know why you would have changed it from a Z495 to a Z436 to start with?

I think i have only ever seen 1 Ryco filter leak in my career!

[QUOTE=RXqME;749857]Yep Z495 for a Bug eye. I now don't know why you would have changed it from a Z495 to a Z436 to start with?

I think i have only ever seen 1 Ryco filter leak in my career![/QUOTE]


Because I was searching online and a few sources said to fit the Ryco Z436!!? as it was the same size as the Geniune Subaru Filter which it is.

Those Z495 are a fair bit bigger than the Geniune Subaru and Z436 and sit a[B] lot[/B] closer to the exhaust


Heres just one source I used in gathering info on what ryco filter to use on the Subaru

[url]http://justjap.com/store/product.php?productid=17883&cat=&page=1[/url]

Ive now only just rechecked the car again tonight = this filter leaks oil too!!!??? I don't know what the problem is?, its a Geniune Subaru Filter that I installed a week ago.

maybe its not the filter? take it to a workshop and get them to look at it if you cant work it out

Its starting to look like I might have to take it somewhere, I can usually sort such things out no bother but this has me stumped??

Either the thread on the oil filter housing is stripped or like I said the oil cooler o ring is leaking. Maybe be something worse like a cam or crank seal leaking down the timing cover and Onto the oil filter

[QUOTE=Marti;750625]Either the thread on the oil filter housing is stripped or like I said the oil cooler o ring is leaking. Maybe be something worse like a cam or crank seal leaking down the timing cover and Onto the oil filter[/QUOTE]
I looked again at that and its definitely [B]not [/B]leaking from higher than the Oil Filter itself, all that area is still dry as . The Thread on the housing looked fine to me when I checked it before installing the Subaru Filter..

Can anyone give me the part number for the Threaded Pipe that goes in the centre of the Oil Cooler( that the Oil Filter Screws onto).

The only explanation of the leak could be I slightly bent that tube when I removed the old filter with a Screwdriver so Im going to replace that Pipe. A part number will make life easier for me to get hold of one.

[B]Also looking for the Torque needed when fitting that threaded pipe?[/B]


[COLOR="Red"]Just found this Article on Subaru Oil Filters: Good read[/COLOR]

[url]http://allwheeldriveauto.com/subaru-service-seattle-subaru-oil-filters-explained/[/url]

I use the after market K&N filter. hp-1008. Works fine.

Never had one leak..

How come you could not find a Z495?? No repco? supercheap? autobaurn nearby?

Always best to use the right filter...

[QUOTE=dtp31;750984]I use the after market K&N filter. hp-1008. Works fine.

Never had one leak..

How come you could not find a Z495?? No repco? supercheap? autobaurn nearby?

Always best to use the right filter...[/QUOTE]
Well Im getting conflicting info all over the net regarding that and its probably an argument that will go on for eons!!?. I have read numerous times that the Z495 is too big for the WRX as it sits only just off of the Exhaust and causes the oil to run at a higher temperature.

Because the Z432 is the same size as the Standard Genuine Subaru Filter it was being said that this was the one that should be used so that's what I fitted up. It leaked so I put an original Subaru one on there and this leaks as well!!, the only thing I can possibly think of now is that the Threaded Tube that the filter screws onto is bent!??

Like I said I still think its the oil cooler o ring. Goto a subaru dealership, give them your chassis number and get a quote. Better year phone them and do the same

this^^^^ once you remove the threaded tube you'll realise the orange o-ring marti's talking about, if the threaded tube has come loose it will also leak, slight possibility this is the cause & causing the oil cooler (that sits above the oil filter) to not seal against the block

funnily enough i've been monitoring my new car as i noticed some oil leaking around the filter, i thought it was coming from higher up, i'll be changing the oil on mine this weekend & checking that the oil cooler (heat transfer) module above the filter has not come loose, need a 24mm deep socket to tighten the tube up, part number for the orange o-ring that goes between the block and the oil cooler is #21370

I'll report back with results

I'll try change that Oil Cooler O Ring then( to rule that out), I know the one your talking about guys, ive seen pics of them elsewhere.

I think the leak is getting worse!?, Had a look under the car yet again tonight and changing that O ring looks to be a pain!?, Trying to get in there and squeeze those clips open on the hoses going to the Oil Cooler will be a challenge because of the way Mine are Orientated.

What sort of Torque setting is required on that Threaded Pipe with the nut section?....

Undo the 10mm bolt on the coolant feed pipe under the cam cover. Then once you get the 24mm threaded pipe off you can slightly twist the oil cooler to get access to the o ring

[QUOTE=Marti;751131]Undo the 10mm bolt on the coolant feed pipe under the cam cover. Then once you get the 24mm threaded pipe off you can slightly twist the oil cooler to get access to the o ring[/QUOTE]

That makes sense!, I just read this "How To" on changing that O Ring and they were saying you had to remove part of the Exhaust to change that Cooler O Ring!?( to get access to those clips).

[B]Your way[/B] sounds much better than this here = [url=http://www.socalsubies.com/forums/showthread.php?t=16348]Oil Cooler-Service and Repair - Socal Subaru Forum For SoCal Subaru Enthusiasts: SoCalSubies.com[/url]

Ive just only about a (week ago) spent $50.00 on Synthetic Oil and $20.00 on that Subaru Oil Filter so hoping to drop the oil in a CLEAN container and re use it.

Don't worry about dropping the oil, not much will come out, just re check it once you've changed the filter and o ring