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@rob_in_denver avatar
UTC

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Mp3 500
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UTC quote
So yesterday, I went for a great ride with some friends. Out in the country and back on a 100 miler, and the bike ran great, no problems at all, at least until I pulled in my driveway and noticed the temp gauge. Maxxed out!
Now before I get criticized for not noticing this whenever it happened ( and I can only hope it wasn't long) let it be noted I was in fairly fast and heavy fraffic towards the end, and I am hear to tell you, that dim little gauge does not exactly command much attention in such scenarios. And yes, I should have noticed.
I hope to fix that, just in case there is a next time.
Somewhere in there under the body panels, a hose must have come off completely. Efforts to put more coolant in was met with it all splashing onto the driveway instantly.
Today I hope to pull the panels back off and see what happened. Fix that bastard and take a hard look at all the other coolant hoses ( I already changed the ones on the side to the better clamps). Then refill it, get it pressurized ( assuming I have to take it to a shop for that?), then hold my breath and try to start it.
If the engine if toast, you may read about me posthumously in the paper.
"Three wheeled scooter rider flings self from precipice after ruining new engine".
We will see.
In the meantime I am curious if anyone is aware of a good LED alert system that can be rigged up, something that would actually get your attention if the system was having a problem?
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MP3 500, Kawasaki Versys, KLX250S, Buddy 150 Pamplona
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@alba avatar
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UTC quote
Sorry to hear you are having so many troubles Rob. Fingers crossed for you it's a simple fix. And I wouldn't beat yourself up for not noticing the temp gauge. It's not something that would jump out at you.

Good luck (and stay out of the papers)
@g03 avatar
UTC

Molto Verboso
MP3 500 08
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Molto Verboso
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UTC quote
I would believe if it was running when you shut it down, fairly good chance it will run later ! Possible damage, yes, but may not be anything you could do now. Hopefully the leak started around the corner of getting home. Smell the oil, for any burnt odor. If not a bad smell, u may have gotten lucky ! If it starts and run, change the oil.
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Veni, Vidi, Posti
2007 GTS
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UTC quote
Rob you can purge the coolant system at home. no need for a shop. look at the service manual.
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Good advice all. My mechanic friend John says if it was not running bad or sounding weird, I might be OK. Scary to think somethinmg like this could happen anytime along the road and you might not catch it till too late.
John says there are ways to rig up a more noticable alert if there is a problem, and I am all for it. Will document it if so.
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UTC quote
Now there's something for some engineering type to design and put up - a small panel with temp warning light, amp meter or warning light, and a couple of turn signal led's.

Hope your engine is not killed. They usually scream when the bearings are dry.
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YaYaDave wrote:
Hope your engine is not killed. They usually scream when the bearings are dry.
Wouldn't that be the case if he lost his oil; not his coolant?
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Looks like my mechanic work caught up with me, as this is a hose i did not appear to put on well enough when i swapped the engine. I assumed i would have something show up, but this seems like a bad place to have screwed up.

Brave two four did a nice write up in the WIKI on changing the coolant and bleeding the system.

I assume any good coolant should work?
⚠️ Last edited by Rob In Denver on UTC; edited 1 time
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Hooked
MP3 250
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UTC quote
Sorry to hear about your new problem. Anyone could have overlooked that one - hell, I didn't even know there was a temperature gauge, but I'll be sure to monitor it now.

Hopefully the green machine's ok.
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It SEEMS I might have dodged the bullet! My neighbor said it would be Ok to start it up for a minute without the coolant to see if it sounded OK, and it did!
Boy, will I ever be a happy guy if it is alright! Maybe it really is.
For all I knew I drove it 45 minutes without coolant, though I sure hoped that was not the case.
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Veni, Vidi, Posti
2007 GTS
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UTC quote
you can use the 50/50 premix coolant, just make sure it is for aluminum engines. most of it is now days. dexcool, prestone both are good.
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heinlein wrote:
YaYaDave wrote:
Hope your engine is not killed. They usually scream when the bearings are dry.
Wouldn't that be the case if he lost his oil; not his coolant?
Oh, yeah, dat be right.
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So, it looked like things were gonna be ok, for a while. However, I think the running it with no coolant must have done something to the waterpump, as now it leaks down through the weep hose. Quite a bit.
Trying to recall if the water pump needs the engine out to be replaced.
Feeling bummed, but at least the engine still sounds good. Thankful for that.
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UTC quote
Rob In Denver wrote:
So, it looked like things were gonna be ok, for a while. However, I think the running it with no coolant must have done something to the waterpump, as now it leaks down through the weep hose. Quite a bit.
Trying to recall if the water pump needs the engine out to be replaced.
Feeling bummed, but at least the engine still sounds good. Thankful for that.
just guessing here, but you might just need a seal.
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Any way to tell? I have no idea.
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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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UTC quote
It's not 'just a seal' - this is a ceramic job, and definitely a dealer one in my view, unless you're good at making tools.

A slight weep of water (especially if only at stand-still after a long run) is just about tolerable as long as you keep the reservoir topped up. If any more than that, time to bite the financial bullet...
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UTC quote
Thanks. Got Sportique pricing it now. My own fault for not getting the hose on good enough.
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Has anyone personally changed the water pump? I am in the position of having my old motor available, where i could swap the pumps......curious about the special tools. The difficulty. if anyone knows....
If I take it to a shop it will be weeks getting it back.
its spring! Time to freakin ride.....
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UTC quote
You could use the impeller if it's needed, but the seal which is what you need, can not be reused.
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UTC quote
arrrggnhhh!!!!! More time than money issues here for me I think. The propeller is only a $56 item at AF1 so hardly worth the effort of grabbing from the old engine.
If I could source parts and tools maybe I could get it back on the road soon. I would happily let Sportique do it if it did not take weeks or a month. I might be stuck with that, but I hope not..
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The impeller is most likely fine, it's the ceramic seal you will need.
@noth avatar
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Molto Verboso
Burgman 650 (May, 2012) MP3 500 (11/2009 - 5.2012)
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Molto Verboso
@noth avatar
Burgman 650 (May, 2012) MP3 500 (11/2009 - 5.2012)
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UTC quote
They fixed mine with some stop leak.. done before Plymouth Vespa went under.. The said that the bulletin called for it to be fixed that way..
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Was that a small leaking? Mine is more of a steady stream, kinda doubt stopleak would work.
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UTC quote
Just to end this thread, on a happy note I hope.
I will be picking up my scoot from Boulder Sportique, who did
an amazing fast repair on the water pump once the part was in.
Seems it was just the ceramic seal, but that does require the special tool from Piaggio to remove and I suppose to replace, otherwsie its a big ordeal.

If this is all I did to the bike by running it without coolant I count myself very lucky. Total cost was a bit over $200.00 and they were able to fix the parking brake and a couple other minor things as well.

All is well that ends well.
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