View Full Version : found oil on spark plugs around the nut.
just changing the plugs out after fitting heated grips and found burnt oil on the top half of the plug, past the thread onto the steel nut part and some on the ceramic.
both plugs affected and were screwed in properly, not loose. also just found some oil residue that has come out of a small hole on the, as sat on it, right hand side, cylinder.
i have no idea how to upload pics onto here, so descriptions is the best i can do.
Not leaking cam-cover gaskets?
Could do with pictures....
its clean and dry around all the seals/gaskets. it would appear to be a breather hole but i will try to find a pic of an sv engine online and point out the area.
Without pics, its awkward to say for sure, but if the residue on the ceramic part of the plugs is like a brown colour, almost as if kind of "streaked" upwards, this does sometimes happen on old/used plugs. It's a small amount of, for want of a better term, blow-by.
And not necessarily an indication of a fault with your engine...
right i think this will work, it should be a picture of the hole the oil has come from. http://i97.photobucket.com/albums/l222/sparkle8963/svengine.jpg
hope this works.
Well I can't see how an oil leak from there would get on your plugs!
i dont think it got from there to the plugs, just happened that the plug was oily too, im just a bit confused as i dont know how the plugs would get oily and that hole would be oily =/
Were the plugs, on the outside, wet with oil?
That hole is there to let fluid out......now whether they're there to let oil or coolant out if something fails, or simply a drain for water/fluid from the spark plug orifice to stop them filling up with water when it rains/washed....I don't know. But I would be tempted to squirt wd40 up that hole, and see where it comes out.
If it comes upband out by the plug, well we know then that some oil has leaked.....from somewhere.
i shall squirt it up the hole tomorrow. hopefully it does come out up there so i only have one oily leak to worry about. thanks for the help :)
No worries.
Hope it isn't a leak!
garynortheast
02-01-12, 08:20 PM
I believe I'm right in saying that hole is a drain hole to allow water which may gather in the plug recess to drain away. Well worth keeping it clear if you don't want the top half of the plugs sitting in a pool of water during wet weather.
yorkie_chris
02-01-12, 08:28 PM
Cam cover gasket is leaking.
Look at gasket, how do you think spark plug tunnel is connected in there. Gasket has a ring around plug tunnel, otherwise plug would get full of oil.
However if it is just a tiny amount, I'd probably ignore it.
well it was a bit burnt onto only one side of the plug and a small dribble out of the hole, probably reached about 5-6mm in length. is it a big job changing the gasket there?
yorkie_chris
02-01-12, 08:41 PM
You would probably find it cures it to remove and replace with a light spot of sealant.
You need to take lowers off, push rad forward, remove horn, remove cover, sort gasket and replace.
sorted, so not like engine out of frame jobby :) thats good. any need to remove forks/ front wheel or would that just give more room to work?
yorkie_chris
02-01-12, 09:31 PM
No, it is just like procedure for checking valve clearance. Oh and as well as list above you may need to pull fairings from mountings.
To make it really easy remove the upper tupperware and the radiator.
To avoid work in future, check the valves while you're there.
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