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1Back to top Go down   Oil/water pump Empty Oil/water pump Fri Nov 27, 2020 5:04 pm

mritz

mritz
active member
active member
I had the old model with cast iron propeller and the pump was due to replace its internals anyways.
I saw some condensation in the oil level visor and also an strange liquid in the oil cap. Definitely some contamination in the pump.

Well with all apart, I think I need to replace the main pump shaft. See picture.
Have you guys with 55k miles rebuild your pumps already? If you add all seals and spacers goes over $300 easily.
Does anyone have a good indication where to get this part without forking US$250 asked by Maxbmw?

Thank you!

Oil/water pump Screen15

    

2Back to top Go down   Oil/water pump Empty Re: Oil/water pump Fri Nov 27, 2020 6:07 pm

Laitch

Laitch
Life time member
Life time member
It wouldn't be surprising if years of idleness fostered enough condensation within the crankcase that would significantly dilute the oil into a creamy consistency. Maybe the pump seals are bad but maybe thoroughly flushing the crankcase then adding fresh oil would have mitigated the condition.

Regardless, forking over the dough to replace that part with new OEM is likely to significantly raise the odds of a successful repair.


__________________________________________________
1995 K75 81,000 miles
Oil/water pump Usa-lo10
    

3Back to top Go down   Oil/water pump Empty Re: Oil/water pump Fri Nov 27, 2020 6:28 pm

jbt

jbt
Silver member
Silver member
No alternative , this shaft is dead, you need a brand new one. I also think that the mileage has no influence on the wear but the years do.

    

4Back to top Go down   Oil/water pump Empty Re: Oil/water pump Fri Nov 27, 2020 6:33 pm

TacKler

TacKler
Life time member
Life time member
Post #74 in this recent link provides an image to give you an idea.  

https://www.k100-forum.com/t1112p50-waterpump-seal-special-tool#192200


__________________________________________________
Red 1991 K75S
    

5Back to top Go down   Oil/water pump Empty Re: Oil/water pump Fri Nov 27, 2020 6:38 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Shop Motorworks or Motobins UK for better prices than you'll typically find stateside.


__________________________________________________

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

    

6Back to top Go down   Oil/water pump Empty Re: Oil/water pump Sun Nov 29, 2020 10:39 am

mritz

mritz
active member
active member
@Two Wheels Better wrote:Shop Motorworks or Motobins UK for better prices than you'll typically find stateside.
Already ordered a few parts from Motobins. Thank you!

    

7Back to top Go down   Oil/water pump Empty Re: Oil/water pump Sun Nov 29, 2020 7:21 pm

Dai

Dai
Life time member
Life time member
To answer your original question; I rebuilt my pump around 70,000 miles ago. I had an original Hotpoint TwinTub-style impeller in there that was a soild lump of rust. I replaced that with a s/h later impeller that had a slight wear band around the shaft. It's still running okay. If you're not happy about doing the job yourself, Motorworks will exchange your pump for a newly-overhauled one.


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

8Back to top Go down   Oil/water pump Empty Re: Oil/water pump Sun Nov 29, 2020 7:25 pm

mritz

mritz
active member
active member
@Dai wrote:To answer your original question; I rebuilt my pump around 70,000 miles ago. I had an original Hotpoint TwinTub-style impeller in there that was a soild lump of rust. I replaced that with a s/h later impeller that had a slight wear band around the shaft. It's still running okay. If you're not happy about doing the job yourself, Motorworks will exchange your pump for a newly-overhauled one.
I've already order all parts. I will give it a try.
Im assuming you're not talking about Mortorworks Chicago...
What would be the website of Motorworks you're talking about?

    

9Back to top Go down   Oil/water pump Empty Re: Oil/water pump Mon Nov 30, 2020 8:08 pm

Dai

Dai
Life time member
Life time member


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

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