Date: 17-06-21  Time: 08:30 am

Author Topic: coolant loss, pressurised system  (Read 273 times)

red98

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coolant loss, pressurised system
« on: 06 June 2021, 08:21:33 am »

jealous of all the attention my boxeye is getting,the mighty thou is throwing all its coolant on the floor  :rolleyes



« Last Edit: 06 June 2021, 08:22:59 am by red98 »
One, is never going to be enough.....

Ripsnortingvtwin

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Re: coolant loss, pressurised system
« Reply #1 on: 10 June 2021, 07:44:25 am »
it needs the same , then it will be happy again

mtread

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Re: coolant loss, pressurised system
« Reply #2 on: 10 June 2021, 09:34:29 am »
Quote
jealous of all the attention my boxeye is getting,the mighty thou is throwing all its coolant on the floor 

Looks like it's thrown the entire engine on the floor!  :eek

red98

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Re: coolant loss, pressurised system
« Reply #3 on: 10 June 2021, 08:00:55 pm »
spot on you two  :thumbup ...yes its another engine swap for me, 2nd one this year, to answer the next question in advance...Why ?...bike is throwing its coolant out of the header tank after a couple of minutes running, could be a failed  head gasket pressurising the coolant system or worse a cracked head, other problems that i have not been 100% happy with for a while now is a rattling clutch and my own painting of the engine a few years back... the decider was an offer of a free engine from a friend of a friend, no history with it but got in contact with the previous owner on the log book and he kindly sent me the service history, lots of it including a recent big service with a bill for £400 ish and MOT`s confirming a mileage of 60,000 ish which is more or less the same as my bike, my friend has heard it running and it sounds sweet, just bolted it in this evening but still have all the bits and pieces to fit...
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Gnasher

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Re: coolant loss, pressurised system
« Reply #4 on: 10 June 2021, 08:17:15 pm »
Could also just be a knackered pump/drive, restricted rad and or hoses, which I've seen a lot of due to owners/stealers either not using any antifreeze, not enough and just tap water.  I've personally only seen 2 blown head gaskets on FZS's both were down to what I've listed previously and it both cases coolant ends up in the oil almost immediately.

I've never seen a cracked head, on a FZS, tuned R1's oh yes, but not FZS.   All that said there's always a first time  ;)     
Later

red98

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Re: coolant loss, pressurised system
« Reply #5 on: 10 June 2021, 08:49:03 pm »
Hi GNASHER, pump rebuilt 2019 (i think) after the seal failed between oil and water pump, rad is clear and always run with anti-freeze not checked hoses but i will before re-fitting, thanks for the tip   :thumbup ...coolant is not mixing with the oil just getting pumped out of the header tank overflow. will investigate further come the winter when i`am not out riding, got the 600 to do first though , going to be a busy winter  :)
One, is never going to be enough.....

unfazed

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Re: coolant loss, pressurised system
« Reply #6 on: 10 June 2021, 11:16:41 pm »
Did you check out the thermostat and the rad cap?
« Last Edit: 10 June 2021, 11:17:26 pm by unfazed »

red98

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Re: coolant loss, pressurised system
« Reply #7 on: 11 June 2021, 06:41:12 am »
Hi unfazed, Yes that was the first things i checked, thermostat working fine, the rubber seal around the rad cap was a bit mis-shaped so replaced with a good spare i had, tried without thermostat but still pushing its coolant out of the header tank.
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Gnasher

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Re: coolant loss, pressurised system
« Reply #8 on: 11 June 2021, 06:47:17 am »
It's looking highly likely you've got a blown head gasket, or a cracked head.   :eek  I'm very interested in hearing what the out come is mate. 
Later

red98

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Re: coolant loss, pressurised system
« Reply #9 on: 11 June 2021, 07:42:13 pm »
Hi gnasher.Yes i`am thinking head gasket. when the water/oil pump seal went i let the bike cool down and then rode it home 3 ish miles nice and easy but perhaps that caused some damage...will update this thread when i strip it down to take a look, wont be untill the autumn though, summer for riding bikes, winter for tinkering  ;)
One, is never going to be enough.....