1986 Honda CR 250

FlashptA10
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FlashptA10
Edited Date/Time 1/27/2012 12:38am
I have a 1986 Honda CR 250.
I have replaced the rt. side water pump internals (pump gear seals bearings gaskets etc) and replaced the rt. side cover with all new OEM parts. I started the bike in the garage. No leaks and no water in crank case. I thought it was good to go. When I rode it 1 lap. Water started to come out of the weap hole in the new cover. I am not sure what the purpose of this hole is. I took the cover off and replaced the seal again with a new Honda part. The same thing happened again.
Whats my problem?
(1) 1986 CR 250
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ThePipe
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ThePipe 11/12/2009 6:34am
11/12/2009 6:34am
Maybe your seals are in backwards.
newmann
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newmann 11/12/2009 6:40am
11/12/2009 6:40am
Not to ask a dumb question, but did you install the coolant seal facing the proper direction? The two seals should face opposite directions if I'm thinking correctly.

Is this a new waterpump housing/side cover assembly?

Did you replace the water pump shaft?


If I'm not mistaken, the weep hole originates in between the two seals and acts as an indicator when something is failing. In this case, obviously there is a coolant leak. If it were old parts, other than the seal it could be because of corrosion or wear on the impeller shaft or corrosion around the seal surface in the housing itself.
newmann
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newmann 11/12/2009 6:42am
11/12/2009 6:42am
I see Pipe responded while I was slowly typing.................beat to the first turn AGAIN.
JTR
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JTR 11/12/2009 12:34pm
11/12/2009 12:34pm
Very nice your cr 250, I hope to leave mine like that of your photo, the flight that is devido also pointed to the axis of the water pump this detriorado through use and over time Revisao and tell us a greeting from Spain

The Shop

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koolstrike 11/12/2009 9:47pm
11/12/2009 9:47pm
Either the seals are in backward OR your water pump shaft has gone bad.

Also, where did you get the new water pump cover?
FlashptA10
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FlashptA10 11/13/2009 3:53am
11/13/2009 3:53am Edited Date/Time 4/17/2016 6:55pm
Yes the pump shaft is new as is all the internal parts. All parts are OEM parts from Honda.
My 22 year old son is my mech. & he installed the seals. He doesnt think they are in backwards.
We will double and triple check.
Kevin

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