I'm Back And Got A Problem

Polarbear · Super Spammer Joined: 24 Feb 2007 Karma :

Well, the good things to come out of this....

1. It happened on a single cylinder 125

2. You'll never be scared to open up an engine again Thumbs Up

3. L33n gave me a laugh

Who last rode it? Give him a slap round the ear. Laughing

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Triumph Trophy Launch Edition

dolly3900 · Traffic Copper Joined: 12 Jul 2011 Karma :

Eldest son last rode it, balls out from Coventry to Swansea apparently on inspection, there is oil in it, although not a lot.

I'm going on the evidence here, but I think the oil was so low, it was just about enough to keep the bottom end lubricated to a minimum as there appears to be no damage or apparent wear there, but the oil starvation of the upper reaches has caused the top end to give way in this spectacular fashion.

The fact that it made it on that journey would, to me, suggest that it was being driven so hard, the fast moving piston was melting by degrees but not enough to actually seize in the bore.

Once it stopped, the heat in the engine was enough to melt the rest and leave it as we have it here.

The rest of the engine does appear to be in great shape and should just need a good clean and flush in the parts washer to remove any debris, a good oil up and ready to go.

Obviously, the first startup will be closely monitored and a full oil change done after a short period of stationary running, then run in, in accordance with the usual advice, before a final flush/change before use.
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2002 Rieju RS2-50 (Sold, spares or repair), 2010 Suzuki DR-125SM (Traded for ->), 2007 Honda CBF 600 (Sold), 2010 Suzuki V-Strom 1000 (Briefly, now returned), 2007 Suzuki Intruder 1800m (Even More Briefly, traded in for ->), 2014 Suzuki V-Strom 650

dolly3900 · Traffic Copper Joined: 12 Jul 2011 Karma :

https://i823.photobucket.com/albums/zz157/mikeallen3lly3900/Mobile%20Uploads/IMAG0629_zpsygqlraf8.jpg

https://i823.photobucket.com/albums/zz157/mikeallen3lly3900/Mobile%20Uploads/IMAG0630_zps3jn8u6y4.jpg

I think my overly optimistic hope that the top end was salvageable might have been misplaced.

I'm certain that valves are not supposed to look like this.

Head looks a tad under the weather too, so eBay strikes again and replacement on its way along with gasket set.

Oh well, it's all shits and giggles until someone giggles and shits
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2002 Rieju RS2-50 (Sold, spares or repair), 2010 Suzuki DR-125SM (Traded for ->), 2007 Honda CBF 600 (Sold), 2010 Suzuki V-Strom 1000 (Briefly, now returned), 2007 Suzuki Intruder 1800m (Even More Briefly, traded in for ->), 2014 Suzuki V-Strom 650

BusterGonads · Trackday Trickster Joined: 18 May 2018 Karma :

Reading the OPs post he seems to be suggesting that the bike was driven home and fell apart in the shed.... No. It blew up and was somehow got home and put in the shed, or it was revved like fuck outside the shed until it blew up, but that bike had a catastrophic failure and somebody knew and put it away like that. I'm thinking the bore will need close inspection and I'd be very surprised if the bore got away unscathed. I'd also be interrogating the last person to use it, because I think some porkies have been served up. Smile

dolly3900 · Traffic Copper Joined: 12 Jul 2011 Karma :

Buster,

I was told it wasvriden home and was fine when parked up.

On inspection, I have no doubt that the bike was screwed over and either pushed or recovered to home and forgot to tell me this.

I will be speaking to him in detail about it, have no fear in that.

Porkies? At least lentil and Cous Cous (he's vegi)
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2002 Rieju RS2-50 (Sold, spares or repair), 2010 Suzuki DR-125SM (Traded for ->), 2007 Honda CBF 600 (Sold), 2010 Suzuki V-Strom 1000 (Briefly, now returned), 2007 Suzuki Intruder 1800m (Even More Briefly, traded in for ->), 2014 Suzuki V-Strom 650