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Cylinder head gasket leaking !!!

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Scotty452 View Drop Down
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    Posted: 24 Sep 2013 at 22:43
I noticed that my 06 RSVR is using oil and water more than I would expect from a v twin. I lifted the tank to investigate to find that the rocker cover gasket is leaking and oil is seeping down the rear cylinder. I jet washed the rear cylinder to remove the oil residue and after a closer look could also see oil seeping from the areas marked with arrows. Hopefully I can get griff to work his magic on her as I don't trust anyone else. Not looking forward to the bill !! [IMG]http://http://s951.photobucket.com/user/scotty2452/media/image_zps195bc9dc.jpg.html][/URL][/IMG]
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BrummyMax View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrummyMax Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2013 at 22:57
The rear cylinder is doable without dropping the engine, which is a bonus. Its a 2 man job though, unless you like gambling with broken piston rings!
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Scotty452 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scotty452 Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2013 at 23:06
Well it needs to be done, it's just a matter of when I have any wonga. Needs a tune up too but no point in doing that until the gasket is sorted.
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BrummyMax View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrummyMax Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2013 at 23:39
If the engine is definitely loosing coolant, then where is it going? Has the oil turned into an emulsion?

If it is only oil that is leaking then the rear cylinder cap gasket could be damaged or incorrectly seated. It is easy to get the gasket misaligned when putting the cap back on after a valve clearance check. Have the clearances been checked recently?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrummyMax Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2013 at 00:02
Is the exhaust giving white smoke?
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Scotty452 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scotty452 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2013 at 20:14
It's loosing more oil than coolant. I have only had this 5 months so don't really know about clearances. It was serviced about 300 miles before I got it. The oil looks fine, I just keep topping it up, don't see any white smoke
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrummyMax Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2013 at 21:54
It could be that your head gasket is fine, but the valve/cam cover gasket needs reseating or replacing. 45 minute job. I can send you a gasket for the price of a beer and postage.
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tapmyhed View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapmyhed Quote  Post ReplyReply Direct Link To This Post Posted: 26 Sep 2013 at 11:46
You are checking the oil correctly???

Sight gauge AFTER a ride out....not before, not during tick over, not after a warm up or a ride round the block either.

Got to be a ride, then back, engine off, bike upright.  Gauge should show towards MAX.

There is only one way to know what you have in there and that is to do a complete oil change, then pour in 3.9 litres....then its spot on, and you have to check it after most rides.  If you are losing oil, which you are...check your airbox...if its soaking in there, your blowing oil out through the breather off the rear head into an oil catch sponge, which then drains out through the engine.....because your over filling it.

Rocker cover leakage isn't much to be honest, hardly anything...looks worse than it is.

Rocker covers always leak.  I resolved mine by removing all 5 bolts for each rocker cover, removing the rubber seal, and slipping on a single washer, then the seals back on and back in.  The gasket seals will move as you try to put them back on, the only way to stop this happening is to rubber seal it onto the cover with a very very fine smearing of black rubber seal....squished on to remove the excess (put it in the rocker cover groove), then long enough to set, then put back on.  Mine never leaks now...the washer gives you almost a mill of extra quish.

I would also check your engine halfs are secure (side to side)...known to leak a bit of oil here (towards the back), also have a good look at the dry sump tank on the side....metal is known to crack on lugs.

Head gasket.....you might get away with checking the head is torqued down correctly......Brummy and fusebox are your men for this.


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tapmyhed View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapmyhed Quote  Post ReplyReply Direct Link To This Post Posted: 26 Sep 2013 at 11:48
If you do suspect head gasket and large oil loss here in through the engine....check you plugs, see what they look like....oil burn will show here......
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scotty452 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Sep 2013 at 00:26
Thanks for the info guys. It's deffenetly leaking from the head shown by right arrow on pic as well as the rocker cover. I cleaned it off and took it for a ride for around 15 mins. When I stopped I could see oil bubbling from the two points. I know about the oil check procedure as this is my second RSVR. I will pull the plugs but expecting them to be sooty as I'm running open Akras and badly needs TB synced.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tapmyhed Quote  Post ReplyReply Direct Link To This Post Posted: 29 Sep 2013 at 09:55
sooty is ok, wet is something else.
Looks like a gasket change is in order then!! This is a head and sleeve out job, bonus being that youll be able to see the condition of the moving bits...such good engines, i love them.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrummyMax Quote  Post ReplyReply Direct Link To This Post Posted: 29 Sep 2013 at 15:00
You might have bolt stretch issues. The cylinder is bolted to the cylinder head with 3 youngs modulus bolts. They may be defective or have been over tightened. When you replace the head gasket, replace these 3 bolts as well:
http://www.apriliapartsonline.co.uk/index.php/motorcycles-over-250cc/tuono-1000/rsv-1000-tuono-2002-2005/crankshaft-ii/12-screw-w-flange-product-code-ap0940637.html

I need to also replace a head gasket on my bike. I have had an issue with my swingarm hitting an aftermarket lamda sensor in the rear header. This shock has almost certainly stretched the above bolts and reduced the pressure on the head gasket. It is weeping at the same place as yours. My problem is I need a 100mm head gasket instead of the standard 97mm. Cometic manufacture one but they are $110 dollars each. I think Im gonna go with a standard one CNC'ed out to 100mm.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote redratbike Quote  Post ReplyReply Direct Link To This Post Posted: 29 Sep 2013 at 17:18
CNC..!!, what's wrong with a Dremel...lol
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrummyMax Quote  Post ReplyReply Direct Link To This Post Posted: 29 Sep 2013 at 22:37
My Dremel is broke. Im gonna try hammer and chisel ....... :)
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