BMW K bikes (Bricks)

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1Back to top Go down   Water pump leak Empty Water pump leak Sun Dec 27, 2020 3:19 pm

mritz

mritz
active member
active member
Hi there,

I've rebuilt my oil/water pump.
So, all fluids were flushed.

Now, with everything in place, tighten and siliconed... I've noticed a leak.
There is no pressure once I haven't replaced fluids yet. I've just moved the bike position.

a) Im intrigued why there's a hole / drain from the water pump? (See pics)
b) If it's leaking with almost no fluids (just a residual nothing) what will happen if I fill that up?
c) I saw a video o people making fun of other closing that drain with a screw...now I understand why...

It was some mistake I did rebuilding oil/water pump?

Thanks much!

Water pump leak Img_0612

    

2Back to top Go down   Water pump leak Empty Re: Water pump leak Sun Dec 27, 2020 5:19 pm

Laitch

Laitch
Life time member
Life time member
There's no telling what will happen until you fill it up and run it. We don't know whether that's oil, coolant or tears. It's unlikely though that detritus in your garage will be piled up against the overhead door by a pump leak-generated vortex but if that happens, please post some photos. You probably should open the door just in case, and wear overshoes.  Smile

The hole's purpose is to indicate at the earliest possible moment when seals are leaking rather than your finding out by having engine trouble caused by a faulty combo pump. Either oil and/or coolant will drip from that hole. You should fill the cooling system with the correct amount and ratio of distilled water and coolant according to instructions, fill the crankcase with oil in the correct amount, run the engine for a few minutes then shut it off. If no fluid is on the floor the next day, you're golden.

If there's only a drop or two keep calm. Some riders have been able to log thousands of miles accompanied by a few drips. Others can't tolerate uncertainty. If you need to go back in there to replace the replacement seals (you wouldn't be the first, by a long shot), save the coolant and reuse it if there's no oil in it.

There's a hole with a similar purpose on the underside of the transmission where it joins the engine. Either engine oil or transmission fluid will drip from that one when seal leaks occur.

What is the unit of measure for residual nothing?  Nanosomethings? Laughing


__________________________________________________
1995 K75 81,000 miles
Water pump leak Usa-lo10
    

3Back to top Go down   Water pump leak Empty Re: Water pump leak Sun Dec 27, 2020 6:43 pm

mritz

mritz
active member
active member
@Laitch wrote:

What is the unit of measure for residual nothing?  Nanosomethings? Laughing

It was zero DPHs (drops per hour)...
I've moved the bike and and I've noticed 1 DPH...
Im intrigued because I have almost nothing...

What seal you are talking about?

    

4Back to top Go down   Water pump leak Empty Re: Water pump leak Sun Dec 27, 2020 7:08 pm

Laitch

Laitch
Life time member
Life time member
@mritz wrote:What seal you are talking about?
Which paragraph?


__________________________________________________
1995 K75 81,000 miles
Water pump leak Usa-lo10
    

5Back to top Go down   Water pump leak Empty Re: Water pump leak Sun Dec 27, 2020 7:15 pm

mritz

mritz
active member
active member
@Laitch wrote:
@mritz wrote:What seal you are talking about?
Which paragraph?
2nd.
"...earliest possible moment when seals are leaking..."

    

6Back to top Go down   Water pump leak Empty Re: Water pump leak Sun Dec 27, 2020 7:59 pm

Laitch

Laitch
Life time member
Life time member
Did you encounter donut-shaped seals that fit over the shaft that has a gear on one end and an impeller on the other when you rebuilt it? If you did, those are them.


__________________________________________________
1995 K75 81,000 miles
Water pump leak Usa-lo10
    

playlikewedream

playlikewedream
Silver member
Silver member
Hi K gurus,
I replaced the water pump seals on my 1990 K1, but the rubber oil side seal won't seat and there is a gap between the wall of the water pump and the seal no matter how hard I hit it.
Any help would be appreciated.


__________________________________________________
Water pump leak Ir-log10Water pump leak Ir-log10
;BMW; K1 1990 Laguna Blue and Yellow ;BMW;
;BMW; K1100RS 1997 Sedien Blue.;BMW;

Its not about the journey or the destination, it's about the friends you make on the way.
    

8Back to top Go down   Water pump leak Empty Re: Water pump leak Mon Feb 15, 2021 11:14 pm

RicK G

RicK G
admin
admin
Check very carefully and make sure there is not the remainders of the old seal still in there.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

9Back to top Go down   Water pump leak Empty Re: Water pump leak Tue Feb 16, 2021 7:01 am

playlikewedream

playlikewedream
Silver member
Silver member
@playlikewedream wrote:Hi K gurus,
I replaced the water pump seals on my 1990 K1, but the rubber oil side seal won't seat and there is a gap between the wall of the water pump and the seal no matter how hard I hit it.
Any help would be appreciated.

I'm looking for some detailed photos or video of inside pump before and after seal is fitted, i would post photos of mine but the forum is telling me documents only.


__________________________________________________
Water pump leak Ir-log10Water pump leak Ir-log10
;BMW; K1 1990 Laguna Blue and Yellow ;BMW;
;BMW; K1100RS 1997 Sedien Blue.;BMW;

Its not about the journey or the destination, it's about the friends you make on the way.
    

10Back to top Go down   Water pump leak Empty Re: Water pump leak Tue Feb 16, 2021 10:02 am

playlikewedream

playlikewedream
Silver member
Silver member
Thanks Rick
Checked that all of the seal was out, and discovered that the original seal had a metal base and the new one is all rubber and hard plastic, tapped it out job done.
Cheers.


__________________________________________________
Water pump leak Ir-log10Water pump leak Ir-log10
;BMW; K1 1990 Laguna Blue and Yellow ;BMW;
;BMW; K1100RS 1997 Sedien Blue.;BMW;

Its not about the journey or the destination, it's about the friends you make on the way.
    

11Back to top Go down   Water pump leak Empty Re: Water pump leak Tue Feb 16, 2021 7:25 pm

RicK G

RicK G
admin
admin
:BW:


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

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