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Engine full of fuel and seized up

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K2-K6:
IF it has bent a rod,  then it's better to leave in without significant force applied to avoid additional complications I suppose.

Detecting accurately without internal inspection may be difficult,  at least I can't immediately think of a competent way  :)

It takes only a small amount of fluid (anything much above tdc combustion chamber volumes) to compromise a rod.  It's even more effective with less total volume error above chamber volume as the crank can build more approach speed until it meets resistance,  and finally tweak the rod as it won't go over compression.

Vaguely better news ( again,  if this is the cause) is that it may be only one piston as it's pair cylinder would have valves open at the same point. If that's the case,  then damage may be very minor with just one piston cocked side ways and locking the crank.

Lobo:
I’ve thankfully little experience of bent conrods - but would an accurate measurement down the top of the bores (ie through the spark plug hole) show up a difference between two companion pistons?

That’s said perhaps a waste of time as this does sound to be a head off. Feeling bad for you PJM47..., and kinda wondering why we don’t hear more of such failures given the number of CBs out there...

MrDavo:
Commiserations for your loss.

My wife, acting as designated driver on the way home from a bike club ‘do’, once drowned my 2.8 V6 Capri, by driving it through a flood. The air intake was quite low down, next to the headlights behind the front grille.  We got out, getting us and the interior very wet, and pushed it to safety, then idiot here decided to try and bump start the car. No joy, it wouldn’t turn over,  and the next day when I took the plugs out, jets of water shot out of the plug holes as I cranked the engine.

I got it running again, but with a loud death rattle, which turned out to be displaced main bearing shells if I remember correctly. I do know I had to pay a shedload of money to have it fixed.

PJM47:
Thanks for all the replies an sympathy :) It was only turned over a few times on the starter so maybe damage isn't too severe. Every part was completely full of fuel though. Anyone have an idea of how much an engine strip and rebuild would be or would i be better of looking for a complete replacement engine?

Bryanj:
Always take it apart and asses what is needed first, you may not need as much as you think you may need more and a used engine is an even worse unknown quantity---pay a fortune and get crap!!

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