Cleaning inside

[mlivkovich]

Last week I crashed my bike and signal generator cover broke. Bike stopped by the road in gravel. I cleaned all that sand and little rocks from there. I will change oil and filter but I am afraid that small amount of sand came into crankcase. Is it possible? Should I take off oil pan and clean everything from below? Don't wanna take a risk of sand being in it.

[Andre]

There is a small amount of oil behind the signal generator cover. I have no idea where that is exactly coming from. I would tilt the bike on its side with the cover off and investigate where the oil comes from (assuming you haven't dumped the engine oil yet). It should be a very small passage. If there was no sand in that spot than all should be good. If there was sand there, I would start the engine with the cover off so oil will squirt/flow out and flush any sand that might be there out.

[KiwiCol]

It wouldn't start without the signal generator, maybe another way of pressurising the sump / oil?


Just went back to the original pic, looks like it's still there, but working ?

[gsxbarmy]

I agree with Andre. And having done that I think i'd purchase and run some flushing oil through "just to be safe" before removing the old oil filter.

[mlivkovich]

I just found out that there are two big holes where oil can come in and out. Marked grey areas in picture is part of crankshaft, it turns with it. These holes are just not visible until signal generator is removed. I decided, oil pan goes down, and I will clean everything from below.

[Andre]

Good decision. 

[Mick_J]

With the sump off I would try to force some flushing oil down through the holes behind the signal generator with a syringe or something a bit more powerful to really flush things out, just in case.

[mlivkovich]

Took off oil pan and was looking for sand. No sand inside, just rocks

[Andre]

"How would you like your oil?" "On the rocks please."

Oh my gosh. Would not have thought that. 

Would want me take the whole engine apart.

[KiwiCol]

Finding that is good & bad, great you found it & bad it's in there.  You'd hope it's all been contained in the sump area & not been pumped to ot her parts of the engine.
I feel sorry for you looking at that, a real quandry.

[Mister Fishfinger]

I suddenly got the urge to fit some engine bars.

[Tony Nitrous]

I suddenly got the urge to fit some engine bars.

I know folk who think they are great.

I also know folk who quickly removed them again when they hit the ground on corners.

[Mister Fishfinger]

I suddenly got the urge to fit some engine bars.

I know folk who think they are great.

I also know folk who quickly removed them again when they hit the ground on corners.

I removed mine (Renntec) because they were huge. They even got in the way of my legs when I was paddling the bike around. Wouldn't mind some smaller ones though, the Givis are cute. I am not such a cornering monster that I need to worry about grinding things when I go round bends. Sad but true.

[mlivkovich]

Finding that is good & bad, great you found it & bad it's in there.  You'd hope it's all been contained in the sump area & not been pumped to ot her parts of the engine.
I feel sorry for you looking at that, a real quandry.

I think nothing is pumped in because tipover sensor did its job and cut off engine in the moment bike fell down. Bike slided for few seconds on road before stopped in gravel by the road.

[Andre]

That is reassuring. I am still amazed by the rocks in the pan.