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Old 10 May 2009, 07:49   #1
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Seized two-stroke - dead loss?

We loaned someone a two-stroke and they forgot to use the bottle of oil that we left next to the fuel can, hence we know have a totally seized powerhead.

One of us reckons it will never be the same again and the other thinks a strip down and rebuild with a few new bits will do the trick.

What would you do?
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Old 10 May 2009, 08:23   #2
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Cry!!!
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Old 10 May 2009, 08:38   #3
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well i doubt that your not going to get it unseized without removing the head and having a look ,then it depends if the rings have picked up and how bad the cylinder walls are ,or weather any damage is done on the piston ,i wouldent have thought the conrod or crank has siezed ,suppose it depends on how old the engine is and how it did seize up in the first place ie no oil at all ,was it an imediate stop or did it just get slower then stopped or ran but would not start after stoping .you may even get away with new rings it depends on the damage and having a look .
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Old 10 May 2009, 09:14   #4
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What's the engine?

Anything under 20hp I wouldn't bother fixing unless brand new.
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Old 10 May 2009, 09:22   #5
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As NoS says, probably most economic to fit a second hand powerhead.
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Old 10 May 2009, 09:52   #6
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Quote:
Originally Posted by Nos4r2 View Post
What's the engine?
It is a 2001 25HP Mariner...
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Old 10 May 2009, 10:25   #7
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What would you do?
I think there's a choice here...set off on a journey of adventure, suspense, heartache and (possibly) joy...or save your emotions for some other event by putting it in the bin and moving on.

Personally, I'd be curious to have a look and make the call from there. No data, no ability to judge

Don't forget the
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Old 10 May 2009, 12:06   #8
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like everyone said it is purley dependant on the damage, and to a point your proficiency. if you know your way round an engine and it isnt totaly bust then diy, but if you cant even a light rebuild/refresh in labour will cost you more than its worth. posibly asses what is good on it i.e block etc and try and trade it in for a new/recon powerhead, discount maybe v small but you have saved some money on it. post more details/pics and every one will chip in im sure, p.s im no expert on engines (im of the less proficient) but i used a bust powerhead to learn how not to do it!
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Old 10 May 2009, 12:22   #9
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It is a 2001 25HP Mariner...
Hard question then. It's probably going to cost more to rebuild than it's worth if you pay someone to do it.

Are they offering to pay for repairs? If they are, I'd sell them the engine. It'll be cheaper all round.
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Old 10 May 2009, 15:25   #10
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be carefull as some (s/n required) are crome bores and will not re-bore if that was the way you had to go.
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