Engine just went pop :(

[hardhat_harry]

there is another piston just hidden behind the crank

[DarrenSV650S]

I really wouldn't have a clue what I was doing putting that in. Aren't cranks set up for their original engine or something?

[hardhat_harry]

Been thinking about this, its really strange to see this type of failure on a standard roadbike with just 40K miles.

Are we sure we arent talking about a bearing failure and the resultant movement snapping the crank possibly due to oil starvation?

If so new engine needed, look for signs for the engine running hot like blueing on the conrods.

[DarrenSV650S]

Dunno but it still had loads of oil in it. It was above the low mark

[-Ralph-]

Been thinking about this, its really strange to see this type of failure on a standard roadbike with just 40K miles.

+1

[pookie]

hope you get it back on the road..I have enjoyed seeing the various incarnations of the sv..shame to see its demise. My fav was the orangeeboom when it was tangoed

[DarrenSV650S]

hope you get it back on the road..I have enjoyed seeing the various incarnations of the sv..shame to see its demise. My fav was the orangeeboom when it was tangoed

Oh it will definitely be back on the road. No way am I letting it die :)


I'm speaking to implodedhamster about his engine.

Courier thread --> http://forums.sv650.org/showthread.php?p=2610520

[DarrenSV650S]

That's the easy stuff done :)

http://i88.photobucket.com/albums/k164/DarrenStewartTait/02946f97.jpg

Had to take off the rear wheel, hugger and shock to get at the downpipes. Bolts came out easy though, which was a nice surprise. I'll probably give the pipes a good clean while they're out.

Managed to snap this getting the dogbones bolt out though

http://i88.photobucket.com/albums/k164/DarrenStewartTait/1c02dc07.jpg

Is there any way to drop the engine without a jack?

[yorkie_chris]

Yeah they weigh less than a car gearbox, it's not really too bad to hold it from top then knock bolt out (better yet get someone else to do this) then lower it down.


With regards theory of oil starvation strip it down and inspect the big end bearings as these are what nips up first.

Is there any damage to the alternator stator?

[DarrenSV650S]

Yeah they weigh less than a car gearbox, it's not really too bad to hold it from top then knock bolt out (better yet get someone else to do this) then lower it down.


With regards theory of oil starvation strip it down and inspect the big end bearings as these are what nips up first.

Is there any damage to the alternator stator?

Cool shouldn't be too bad then

I'll probably start investigating once I get the new engine in and running. Didn't really have a look at the stator, I was too p***ed off so just bolted it back up

[squirrel_hunter]

Had to take off the rear wheel, hugger and shock to get at the downpipes. Bolts came out easy though, which was a nice surprise. I'll probably give the pipes a good clean while they're out.

Surprised you had to take that much off to get to them. But as you're dropping the engine have you remembered to take the front sprocket off first? I have made this mistake before...

Managed to snap this getting the dogbones bolt out though

Done that. After I thought to myself why am I using an adapter, just buy more tools.

Is there any way to drop the engine without a jack?

Yeah, but it makes things much easier to do it with a jack. And getting the engine back in can take a lot of swearing that is best done when not holding an engine.

[DarrenSV650S]

Surprised you had to take that much off to get to them. But as you're dropping the engine have you remembered to take the front sprocket off first? I have made this mistake before...
Feck just took the chain off. Although I'll be getting new chain and sprockets anyway, so could just leave it on?

Done that. After I thought to myself why am I using an adapter, just buy more tools.

It's cos my 3/8 breaker bar wasn't long enough so had to get the 1/2 bad boy on it. And the only 13mm 1/2 inch socket I have is a deep one and was too long to fit in. So yeh, I need more tools :)

Yeah, but it makes things much easier to do it with a jack. And getting the engine back in can take a lot of swearing that is best done when not holding an engine.
hmmm what about ratcheting it up to the roof?

[squirrel_hunter]

Feck just took the chain off. Although I'll be getting new chain and sprockets anyway, so could just leave it on?

Depends on what you're doing. Its just easier to take the sprocket off first while you have the chain attached to stop engine rotation. But off the top of my head it shouldn't stop you splitting the cases but will stop you from taking the complete gear box out.

hmmm what about ratcheting it up to the roof?

Never done that. I usually just use an ugly assistant like Stretchie to help me, but I don't see the problem...

[DarrenSV650S]

Actually I'll just stick the chain back on. I dremel'd down the two pins so can easily put it back together

[andrewsmith]

hmmm what about ratcheting it up to the roof?

Tam's trick? your not far off it and the ratchet will work. My rear shock was done with the block 'n' tackle
http://forums.sv650.org/showpost.php?p=2303438&postcount=14

[-Ralph-]

I've hung the bike from the roof plenty times no problem. Suppose if you put the engine on blocks of wood, then ratchet the bike up off the top, that will work.

[mikerj]

haha at 09:54pm tonight :batman:

Darren if its a K3/4 the motor was a curvy engine with injected heads so it may be another option

Apart from all the other differences...

[DarrenSV650S]

Tam's trick? your not far off it and the ratchet will work. My rear shock was done with the block 'n' tackle
http://forums.sv650.org/showpost.php?p=2303438&postcount=14

No way that's too much stripping! lol
Although I do need to investigate a slight knock from the forks