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Water pump inspection hose

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770
Nova Slayer



Joined: 25 Jan 2014
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PostPosted: 15:38 - 05 Jun 2014    Post subject: Water pump inspection hose Reply with quote
On my CBR 125R there is a hose that is called in the manual "Water pump inspection hose" And it is dripping coolant non-stop while riding. What does that mean? I have not overfilled it or anything, but I have recently changed the clutch cover. Also the engine temp level have also been notifiable higher.

The "Inspection hose" is under the water pump.
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gavcarter
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Joined: 28 Mar 2009
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PostPosted: 15:49 - 05 Jun 2014    Post subject: Re: Water pump inspection hose Reply with quote
770 wrote:
On my CBR 125R there is a hose that is called in the manual "Water pump inspection hose" And it is dripping coolant non-stop while riding. What does that mean? I have not overfilled it or anything, but I have recently changed the clutch cover. Also the engine temp level have also been notifiable higher.

The "Inspection hose" is under the water pump.


Over fill usually comes from the top of the radiator and off to the tank at the back of the bike.
It is very likely the shaft seals have gone - as this pipe is there so that the coolant does not flow the other way into the oil. Keep it topped up regularly until its fixed.

You may be lucky and have just put it all back a bit wrong - the mechanical seals are expensive ( for what they are) £45 a pop - and you may aswell change the oil seals while your there as they seal the other side of the same shaft but are quite a bit cheaper at couple of £ each.
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770
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PostPosted: 18:54 - 05 Jun 2014    Post subject: Re: Water pump inspection hose Reply with quote
I took off the clutch cover and this time I used the mechanical seal from my old clutch cover. It is still dripping, what I did not do as shown in the manual is using this "Special tool". What kind of tool is this and is it expensive? And what is its purpose?

Picture of manual:

https://postimg.org/image/xuhb4x49f/
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gavcarter
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PostPosted: 19:02 - 05 Jun 2014    Post subject: Reply with quote
Long and short is you knackered it taking it out - they only work once!

Haynes manual reckon you can drive it in with a socket providing it only touches the outer flange.

At £45 a pop I wouldn't like to say Shocked
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770
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Joined: 25 Jan 2014
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PostPosted: 19:07 - 05 Jun 2014    Post subject: Reply with quote
gavcarter wrote:
Long and short is you knackered it taking it out - they only work once!

Haynes manual reckon you can drive it in with a socket providing it only touches the outer flange.

At £45 a pop I wouldn't like to say Shocked


holy shit!!! that costs more than my new whole clutch cover!! Sad Sad Sad
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gavcarter
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PostPosted: 19:19 - 05 Jun 2014    Post subject: Reply with quote
Yep, may be worth taking the new seal and the cover to local garage and have them pop it in for you....
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770
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Joined: 25 Jan 2014
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PostPosted: 22:44 - 14 Jun 2014    Post subject: Reply with quote
gavcarter wrote:
Yep, may be worth taking the new seal and the cover to local garage and have them pop it in for you....


I have ridden for a while now where I have refilled when necessary. Now the leakage has completely stopped. Why do you think that suddently happened?
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gavcarter
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PostPosted: 23:06 - 14 Jun 2014    Post subject: Reply with quote
770 wrote:
gavcarter wrote:
Yep, may be worth taking the new seal and the cover to local garage and have them pop it in for you....


I have ridden for a while now where I have refilled when necessary. Now the leakage has completely stopped. Why do you think that suddently happened?
.

No clue, what I would like to know is how the fuck you got the mechanical seal out with out damaging it in the first place?

I've changed mine earlier in the week and it took about 45mins of digging and prodding, and trying to drift it out from the back.....
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770
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PostPosted: 09:58 - 15 Jun 2014    Post subject: Reply with quote
When i took it off i didnt have to pull or dig at all.. I just took it out....?
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gavcarter
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PostPosted: 11:17 - 15 Jun 2014    Post subject: Reply with quote
770 wrote:
When i took it off i didnt have to pull or dig at all.. I just took it out....?


You have probably only lifted the front half of it out. A piece of rubber with a spring on it?

That other end of it look like this https://img853.imageshack.us/img853/7557/3copyv.jpg

A new one included the seal on the rear side of impeller, the rubber and spring are supposed to be a complete unit with the metal back like this

https://images.wemoto.com/med/OEM_HONDA/10043000.jpg

And judging by the hard time I had getting it out, the blue stuff is an adhesive sealant gasket of sorts ( like water proof loctite etc)
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Hugh Farking Cant
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Joined: 03 Mar 2012
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PostPosted: 11:32 - 15 Jun 2014    Post subject: Reply with quote
Gav; the sealant looks like Blue Hylomar.
The Loctite sealant seems to dry a very light blue.

Do you think that seal had been replaced previously ?
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gavcarter
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PostPosted: 11:38 - 15 Jun 2014    Post subject: Reply with quote
Hugh Farking Cant wrote:
Gav; the sealant looks like Blue Hylomar.
The Loctite sealant seems to dry a very light blue.

Do you think that seal had been replaced previously ?


Wouldn't know in all honesty, but I know the complete seal does not just lift out!

They are a bitch to get out - even if you punch through the oil seal behind it the back of the mechanical seal is quite soft so all my drifts just poked holes in it.

In the end i had to prise it up carefully with a flat screwdriver.

A small enough rawl bolt could probably be put to use as a silde hammer with better success than drifts but the smallest I had was M14 Crying or Very sad
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Old Thread Alert!

The last post was made 11 years, 249 days ago. Instead of replying here, would creating a new thread be more useful?
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