Potential Overheat - any lasting damage ?

[Bittentobuggery]

I have an F225 Yamaha approaching 650 hours and it has been brilliant. I always flush it with hand wash or washing up liquid in a large water butt for 15 minutes after use.

We had an excellent 3 pub day on the river yesterday, interspersed with copious onboard refreshments. I set the engine flushing as normal and went upstairs for further refreshment.

Unfortunately my own internal batteries ran down and my operating system did not reboot until an hour and 10 minutes later.

I raced downstairs to switch off the engine. Thought it sounded a little clackety (could have been my imagination) and the water in the butt was scaldingly hot. The water pickup was ok and the telltale was still running.

This morning I noticed some oil droplet trails on the lower leg from the exhaust which I have never seen before and there was a tiny trace of oil on top of the water in the butt.I started the engine and it sounded perfect as usual.

Would this oil have come from the rings ? Can I just get away with an oil change or have I done any lasting damage ?

Thanks

[Pikey Dave]

Was it overtemp alarming when you came back online? If not I wouldn't worry too much.

[Bittentobuggery]

No, no overheat alarm.

So all good you think ?

[BigDipper]

Would not recommend flushing with washing up liquid as it contains salt and will strip any protective oil that may be in system.

[Nos4r2]

Originally Posted by BigDipper

Would not recommend flushing with washing up liquid as it contains salt and will strip any protective oil that may be in system.

You don't really have 'protective oil in the system' unless your motor is rather unwell as 2 stroke burns off and fourstrokes don't shove it out of the exhaust port, but I wouldn't flush with washing up liquid either as it does contain a lot of salt.


If you've boiled your bottom end in washing up water I'd drop the lower unit, regrease everything and change the lower unit oil incase you've displaced all the grease round the bolts/driveshaft

[Bittentobuggery]

Originally Posted by Nos4r2

If you've boiled your bottom end in washing up water I'd drop the lower unit, regrease everything and change the lower unit oil incase you've displaced all the grease round the bolts/driveshaft

Yeah, that makes a lot of sense. Thanks Nos.

Serves me right for being a pissed up twat.

Is this a layman's job or is this an expensive lesson ? I won't be using washing up liquid again, that's for sure.

[Nos4r2]

Depends on how hands-on you want to be really. If you're not confident removing and refitting the lower unit, get a dealer to do it. If you are, it's about 45 minutes work.

[BigDipper]

I was refering more to oils or grease around seals which could be washed out and leave them dry, but I should have made that clearer.

[Pete7]

Rogue Wave and I would be happy to do it, I see there is a suitable flight tomorrow, can you fix up a spare bed?

Pete

[willk]

Originally Posted by Pete7

Rogue Wave and I would be happy to do it, I see there is a suitable flight tomorrow, can you fix up a spare bed?

You know Pete, I always had my suspicions about Rouge Wave, but you too?! I'm stunned...

[Pete7]

Just good friends . Stu is one of those guys you would want around when the brown stuff really hits the fan - mind you he probably got you into that position in the first place

Pete

[willk]

Originally Posted by Pete7

Just good friends . Stu is one of those guys you would want around when the brown stuff really hits the fan - mind you he probably got you into that position in the first place

.....

[Chris]

Originally Posted by Pete7

Just good friends . Stu is one of those guys you would want around when the brown stuff really hits the fan - mind you he probably got you into that position in the first place

Pete

:-