885 Speed Triple p*ssing coolant

Diggs · World Chat Champion Joined: 03 Apr 2007 Karma :

I came back from a ride on my Mk1 speedy recently, left it on the sidestand to find that after a couple of minutes it began leaking coolant from the coolant cap. I know the level was fine before I set off. Any thoughts?

Cheers
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Now - Speed Triple, old ratty GS550, GSXR750M
Gone (in order of ownership) - Raleigh Runabout, AP50, KH125, GP125, KH250, CBX550, Z400, CB750FII, 250LC, GS550, ZXR750H1, Guzzi Targa, GSX750F, KH250 x2, Bimota SB6R and counting...

davebike · World Chat Champion Joined: 15 Nov 2013 Karma :

Fan not cutting in

Blocked rad either water side or more lightly outside (air) side
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Dave
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Polarbear · Super Spammer Joined: 24 Feb 2007 Karma :

Overfilled? Rad cap seal/safety valve failing?

Was the temp OK on the ride?
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Triumph Trophy Launch Edition

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

The cap on my Speed Four went, bodge it by replacing the rubber seal with something thicker or get a new cap from Triumph. I think mine was less than £10.
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Diggs · World Chat Champion Joined: 03 Apr 2007 Karma :

Long ride on a hot day. The fan did kick in which is a bit worrying otherwise I'd just change the thermostat thingie. I'm going to drain it all down, flush it and refill and see if that cures it...
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Now - Speed Triple, old ratty GS550, GSXR750M
Gone (in order of ownership) - Raleigh Runabout, AP50, KH125, GP125, KH250, CBX550, Z400, CB750FII, 250LC, GS550, ZXR750H1, Guzzi Targa, GSX750F, KH250 x2, Bimota SB6R and counting...

P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

Replace the cap...

Diggs · World Chat Champion Joined: 03 Apr 2007 Karma :

It was the cap to the expansion tank...

I'm going to bleed the system and put in fresh coolant to see if that helps - the stuff that came out looked like leaky bum-water...
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Now - Speed Triple, old ratty GS550, GSXR750M
Gone (in order of ownership) - Raleigh Runabout, AP50, KH125, GP125, KH250, CBX550, Z400, CB750FII, 250LC, GS550, ZXR750H1, Guzzi Targa, GSX750F, KH250 x2, Bimota SB6R and counting...

Diggs · World Chat Champion Joined: 03 Apr 2007 Karma :

Sorted. I undid the radiator cap and a drain bolt, stuck a hosepipe in and flushed the lot. It took 10 minutes before the water ran clear. I don't know if my method of bleeding is the correct one, but I took the expansion tank cap off and ran the engine until air stopped bubbling out. Just need to get some antifreeze now and top it up...
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Now - Speed Triple, old ratty GS550, GSXR750M
Gone (in order of ownership) - Raleigh Runabout, AP50, KH125, GP125, KH250, CBX550, Z400, CB750FII, 250LC, GS550, ZXR750H1, Guzzi Targa, GSX750F, KH250 x2, Bimota SB6R and counting...