bud Posted July 8, 2018 Share Posted July 8, 2018 I have the Honda service manual, shows all the steps for draining/replacing the coolant...it looks like the drain bolt that is removed from the water pump has a sealing washer that needs to be replaced when the bolt goes back in. I can't seems to find the size/part number/anything about this silly little washer. I'd prefer to have it before I drain the coolant, so i can get this done all at once. Can anyone point me towards a part # or size or something for the washer one needs when reinstalling the drain bolt? Thanks! Link to comment Share on other sites More sharing options...
Member Contributer Grum Posted July 8, 2018 Member Contributer Share Posted July 8, 2018 Have never needed to replace the washer, but I do apply a small amount of thread sealant to the drain bolt thread when refitting. Any form of non hardening high temp thread sealant should work fine. This is the stuff I've used and works fine - no leaks at all. Link to comment Share on other sites More sharing options...
bud Posted July 8, 2018 Author Share Posted July 8, 2018 thanks... hadn't thought about that. Link to comment Share on other sites More sharing options...
Member Contributer KevCarver Posted July 8, 2018 Member Contributer Share Posted July 8, 2018 You are fine to do with the old one. I wouldn't bother with any sealant, IMO, YMMV, etc.... Link to comment Share on other sites More sharing options...
bud Posted July 9, 2018 Author Share Posted July 9, 2018 thanks! Link to comment Share on other sites More sharing options...
garcenw Posted July 17, 2018 Share Posted July 17, 2018 If I recall a new washer isn't called for in the factory maintenance manual, but the part number is 90463-ML7-000. Link to comment Share on other sites More sharing options...
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