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#1 treadman

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Posted 13 September 2011 - 05:54 pm

Hi , has anyone had coolant blowing back out of the expansion bottle TDM900 , whats the reason and the cure, the 2 pipes from the fuel idler plunger , can they be fitted wrong , if so which way is correct, at the moment the fan comes on and a tea spoon of coolant comes out the overflow pipe ,theres only an 1" of coolant in the bottle,
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#2 ChrisG

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Posted 13 September 2011 - 06:39 pm

Had it on my Mk1 due to a leaking head gasket. No mayonaise in the oil or oily water, just loss of coolant throuh the overflow

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#3 big dave

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Posted 13 September 2011 - 07:19 pm

QUOTE(treadman @ Tue 13th Sep 2011, 06:54 PM) <{POST_SNAPBACK}>
Hi , has anyone had coolant blowing back out of the expansion bottle TDM900 , whats the reason and the cure, the 2 pipes from the fuel idler plunger , can they be fitted wrong , if so which way is correct, at the moment the fan comes on and a tea spoon of coolant comes out the overflow pipe ,theres only an 1" of coolant in the bottle,
Neil


It happened to me on 900 after I had done the valve clearance. I put it down to slightly overfilling the system at rebuild and/or perhaps an airlock in the system. I ran the bike with the radiator cap off and topped the system up through the top.

Things seemed to settle down after that.

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#4 Daveb

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Posted 13 September 2011 - 07:25 pm

If it was a triumph with the 955i engine I would say common fault rad cap failed. But its a TDM, it could be air in the system? have you refilled the cooling system reciently. perhaps just over filled.



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#5 treadman

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Posted 13 September 2011 - 08:01 pm

head gasket done 10,000mls ago, radiator cap is a replacement,its those 2 pipes that i need t know about, which one goes top, which goes bottom,will run with cap off 2moz
Neil

#6 Studley Ramrod

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Posted 13 September 2011 - 08:33 pm


Found it ! smile.gif

Quote from Whiteride.........

when i had my valve clearances done my bike boiled up exactly the same symptoms and it was because the two small pipes near the rad cap wre on the wrong way around. the overflow pipe needs to be at the top and the pipe from the fast idle valve at the bottom,

Topic here bod ! http://www.carpe-tdm...amp;hl=radiator

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#7 Geordie Guy

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Posted 13 September 2011 - 08:53 pm

Neil,

that is not where we were looking, top of Rad Cap !

We were on the Fast idle plunger, are they contected , " Light Bulb" !

They are both connected wrong ?

Been out and took the side off.

The very thin pipe is the top over flow which goes direct under the bike.



The next one down from the cap, goes to the top pipe on the fast idle plunger.



There is a third pipe which branches off a large pipe on the top of the engine, this goes to the bottom of the fast idle plunger.



So check they are all like this ?

Edited by Geordie Guy, 13 September 2011 - 09:27 pm.

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#8 treadman

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Posted 14 September 2011 - 09:12 pm

thanks Ivan,you are a diamond geezer, thanks for taking the time to help me out,
Neil

#9 Geordie Guy

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Posted 14 September 2011 - 10:08 pm

QUOTE(treadman @ Wed 14th Sep 2011, 10:12 PM) <{POST_SNAPBACK}>
thanks Ivan,you are a diamond geezer, thanks for taking the time to help me out,
Neil


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#10 treadman

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Posted 15 September 2011 - 07:16 pm

Well after all my trials and tribulations has the simple task of changing over 2 pipes,solved all the problems i have had for almost 6 years, i can,t believe that that bike has been to Yamaha dealers and neither of em has spotted there clanger, i will be phoning them tomorrowand give em a piece of mind
Thanks Ivan, studders, big dave ,daveb and chrisg and everyone else that has put up with my constant problems, lets hope this is the end and a life of trouble free motorcycling can return
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#11 Manx1200

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Posted 15 September 2011 - 08:31 pm

Hope every things ok now neil, just spotted this thread. Give the dealers hell! ranting.gif
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#12 Spongey

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Posted 16 September 2011 - 07:15 am

QUOTE(Geordie Guy @ Wed 14th Sep 2011, 11:08 PM) <{POST_SNAPBACK}>
dont fookin tell everyone, they think I'm a twat !


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#13 treadman

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Posted 17 September 2011 - 07:49 pm

took the Tdm out for a test run in torrential conditions, thought i pop up to the Rocket Centre and there was an open day with bsb and wsb stars , had a chat with Steve Plater and shook hands and had a chat with Troy Corser, eugene laverty the 2 lowe brothers where also there, loads of bikes , not bad considering the weather, there was a dyno for the power hungry, fantastic stunt riders , well worth a ride out, bike performed brilliantly, had me tyre pressures checked by the michelin stand and me arai lid was fettled on the arai stand, Great day out
Neil

#14 treadman

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Posted 19 September 2011 - 06:22 pm

any advice welcome, the expansion bottle coolant level is settling about an inch of the bottom ,should i top up the bottle to the lower level, or let sleeping bikes rest and leave alone
Neil

#15 Geordie Guy

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Posted 19 September 2011 - 07:11 pm

Page 3-38 in Mannual says it should be between the Maximun mark and the minimum mark.

Measured after its warm.

Minimum mark is about 30mm from bottom.

So yes, it needs topping up,

its probably as a result of all that coolant pissing out of your engine ! blink.gif
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#16 treadman

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Posted 20 September 2011 - 05:21 pm

hi ivan , its just the way its settled after carefully checking the radiator topping up till satisfied , going for a run and thats the level its set at, so its ok to top up the bottle after the rads full then
Neil


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