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2019 Honda Crf 450r Leaking Coolant from water pump neck.

Posted: Thu Apr 08, 2021 11:56 am
by gfg0418
So I have a 2019 Honda crf450r and its leaking coolant from the neck from the water pump inlet it looks like it may be a press fit connection? Anyway I crashed on the trails and popped a hole in the hose that goes into this. I'm assuming it was knocked loose than. I was able to tap it in, but it is still leaking a bit. Is this something I can just pull out and put gasket maker on etc? Any help greatly appreciated.

Thanks Guys!

Re: 2019 Honda Crf 450r Leaking Coolant from water pump neck.

Posted: Sat Apr 10, 2021 10:04 am
by JimDirt
Welcome to the site !! \:D/

Sorry for late reply , I just noticed this post :oops:

From what I see on the parts fiche , it is all one unit ... I have not had any incidents like that with my 20 , as I don't trail ride it , I have a X for that , so no help there , it looks to be a $80 water pump cover with the fittings as a unit , so they are not expecting anyone to take it apart or service it , I am thinking replacement is the only permanent option .... what you could try for now to get you by till you can get a new one , is try to tap the fitting in with a rubber or plastic mallet , to make sure it is as seated as possible , and seal it with a equal part epoxy , I am assuming there is some kind of O-Ring or something that "seals" it down inside , so with the epoxy , it should completely seal the area around the pipe to the cover , I would also scuff up the surface of the pipe right where it goes into the cover to promote adhesion , and use a putty knife or something to force the epoxy down into the gap ...... This will at least buy you some time so you can order a new one , because with shipping the way it is for OEM stuff , it could be a bit , at least this way you can ride till it arrives ....