Found : head gasket oil leak on 2 used 2010 YARIS ...

[Nu18F]

Hershey,

I see the photo's of the oil and i do believe you. 2 ounces of oil can make a much larger mess than your photo's show without affecting oil level. That said and just FWIW , i wouldn't automatically assume it's faulty head gaskets. The list of possibles could be long.

Whatever the cause, if in fact there are many 1.5's out there with the same problem, i really hope it was caught before the 2011 model was built.

They wife's new 2011 set's outside with 26 miles as i stumbled across this topic.

[Hershey]

Thanks for the trust . The 2008 sedan head cylinder gasket was replaced under warranty at 23,747 miles and hasn't leaked any oil since the fix . Tells of a likely defective head cylinder gasket . I found the oil leak of both during an oil change for the 2008 when I decided to look at the engine for any leaks . Took a few days to pinpoint it for both since it's in a well hidden spot of the engine block . The 2008 had 17,803 miles and the 2010 3,467 miles at the time of discovery . So , the oil leak starts very early . The 2010 still leaks . I've found the same oil leak on YARIS from 2007 > 2010 . We considered trading the 2010 3 door ( TOYO dealer knowing of oil leak ) for an 2011 , but were concerned may end up with the same issue . I hope you and others don't encounter this .

[Hershey]

Last , the Multi Layered Steel head cylinder gasket that replaced the the factory H.C.G. of the '08 sedan seems a bit thicker . Compared to the factory installed H.C.G. of the 2010 .

[Nu18F]

Thanks for the clarification - I hope we have the newest style.

Is there by chance an online parts fiche for the Toyota's? I would like to see if the head gasket part number has been superceded.

[Hershey]

Just called a few TOYOTA parts departments . The kit number is # 04112 - 21231 and the M.L.S. head cylinder gasket in this kit was likely to be #11115-21040 , this was current in September 2010 when the work was done . Was also told the original ( factory installed ) M.L.S. head cylinder gasket is most likely to be #11115-21030 . The current M.L.S. H.C.G. is #11115-21050 . As for the #11115-21040 being thicker than the 21030 is unknown . Seems to be to the touch of the finger from the '08 and the 2010 . Hopefully the 2011 is the 11115-21050 and not the 11115-21030 . Confusing , ain't it ?

[ROCKLAND TOYOTA]

11115-21030 IS FOR THE ECHO/PRIUS AS FAR AS MY CATALOG GOES. 11115-21050 IS GOOD FOR 2006-2011 YARIS.....

[Hershey]

The 11115-21050 H.C.G. comes with the current head cylinder gasket replacement kit. Was told this by the parts dept. Thanks

[Hershey]

Rockland, is it possible that the newer gaskets are thicker than the factory installed gaskets? Is there any way you could find out? Thanks

[ROCKLAND TOYOTA]

Originally Posted by Hershey

Rockland, is it possible that the newer gaskets are thicker than the factory installed gaskets? Is there any way you could find out? Thanks

i could measure a newer one if you have an old one to compare it to....

[Hershey]

" i could measure a newer one if you have an old one to compare it to...."

The service center sent the original H.C.G. to Toyota for inspection and threw out the package it came in . I'll try to find a way to measure the one on the '10 . Very difficult to do thanks to the location in the back of the engine , not much room to work with as you can see ( exposed part of H.C.G. in RED ) . Thanks .

[Hershey]

Here's a side view of the exposed part of the H.C.G. ( circled in BLUE ) after being cleaned on the 2008 sedan not long after finding the source of the oil leak . Last night the better 1/2 noticed that a part of the multi layered steel head cylinder gasket looks to be split apart ( gap ) ( circled in RED ) . What's your take on it ? A defect ? I'll try to get the same picture of the 2010 that leaks oil for comparison . ( may need to zoom in for better view )

[Hershey]

Just took these pics after cleaning the M.L.S. head cylinder gasket and the surrounding area of the 2010 and that has the split ( gap ) of the H.C.G.. Looks very similar to the '08 H.C.G. above that was taken before H.C.G. replacement . I also noticed in AUXMIKES You Tube video that his has the same split as the '08 did and the 2010 does . To see go to , http://www.youtube.com/watch?v=EVK_uBKotcU , you'll need to watch it FULL SCREEN and then pause it at 29 > 30 seconds into the video where you'll see the split ( gap ) in the M.L.S. head cylinder gasket . Looks like it starts near the exhaust manifold and goes further to the right . Makes me wonder if the heat of the exhaust manifold is causing this or the M.L.S. H.C.Gaskets from the factory are defective or possibly a combination of both . The oil leak occurs from under that area . The new H.C.G. in the '08 no longer leaks oil and looks to be thicker than the original H.C.G.. Probably thicker to withstand the heat of the exhaust manifold . . Did call a few Toyota techs to explain the issue and said not likely for the split of M.L.S. H.C.G. to be normal . Here are the pics from today of the '10 3 door for comparison to picture above and AUXMIKE's video . May need to ZOOM in for better look of the 2010 photos , gap is circled in RED . Last , What's your take on this matter ? Thanks .

[Hershey]

Well , the split in the gaskets shown above are not likely to be the culprit . Just took a picture of the new M.L.S. head cylinder gasket in the 2008 sedan that was installed in September and that too is split . You'll notice all the black F.I.P.G ( Form In Place Gasket ) sealant used to reseal it . One possible cause down . So , possibly to be defective head cylinder gaskets installed at the factory . Think they were supplied by a company in China . Here' the pic , split is circled in RED . May need to ZOOM in for better look .

[sickpuppy1]

Possibly it is a two piece gasket that is backed to a harder/metal sheet like material, and the pressure of torquing down the bolts makes it separate. Not necessarily a defect, but a byproduct of pressure makes it flare out a bit......Or I could be full of crap! LOL

[Nu18F]

It's not uncommon to see a multi layer steel gasket split on the overhang however, if my eye's aren't deceiving me,that is a gap between the H/G , head and block, in post #143.

Not trying to start anything - just going by the photo posted.

[Hershey]

" It's not uncommon to see a multi layer steel gasket split on the overhang however, if my eye's aren't deceiving me,that is a gap between the H/G in post #143. "

Yes , there's a small gap ( circled w/ RED ) in the M.L.S. head cylinder gasket of the #1 cylinder that was installed the 1st few days of Sept. , 2010 with 23,747 miles on it . That part of gasket does stick out from the block as you can see in the photos . Need to ZOOM in for a better look . The digital camera we have isn't that great .

[Hershey]

O.K.. . Was told the splitting can be common because of no pressure being applied at that area between 2 masses ( head / lower block ) . Live and learn . Torque can be issue too . Just trying to get to the source .

[yaris2010RS]

toyota put that black gasket maker in there? really? they made a mess of a job. the most recent pic i couldnt see the red circle. from what i saw it looks like the same type of gasket as the exhaust header