Loud buzzing from crankcase just started - Page 2

skiman · 07-01-2016, 02:48 PM

That could be, maybe the fan motor has sat too long.

Mikanic · 07-02-2016, 01:24 AM

Update; The bike had sat for a long time obvously. I believe now it may be water pump. the sound started again today after it warmed up. I tapped the water pump housing and it stopped. Bearing or totalwater pump exchange.I dont believe it is sucking antifreeze from resivior as it is still a pretty green and level is the same. What do you think?

skiman · 07-02-2016, 07:21 AM

Quote:

Originally Posted by Mikanic

Update; The bike had sat for a long time obvously. I believe now it may be water pump. the sound started again today after it warmed up. I tapped the water pump housing and it stopped. Bearing or totalwater pump exchange.I dont believe it is sucking antifreeze from resivior as it is still a pretty green and level is the same. What do you think?

Worth a look. I'm pretty sure all that can be serviced is the seal and impeller, everything else is in the motor. The coolant tank really doesn't change level much. It doesn't look like the impeller has any key or spine from looking a picture of the shaft so maybe the bolt backed off some it has left hand threads so counter clock wise tightens it tighten to 7.25 ftlb of torque. I don't see how tapping it would do anything but stranger things have happened.

Mikanic · 07-02-2016, 03:51 PM

Tried to take cover off for visual inspection of impeller.Bolts came out but could not remove cover,didnt want to break it.

skiman · 07-02-2016, 09:11 PM

It has 2 locator pins so it will need to come straight back not side to side or at an angle.

07-01-2016, 02:48 PM	#16
skiman Advanced Member Join Date: Feb 2010 Location: Nashville,NC Posts: 782	That could be, maybe the fan motor has sat too long. __________________ 2002 Nomad 1500 FI 12" buckhorn apes Chuckster air kit Mustang seat and fender bib Avon Venom tires 2 right side Harley mufflers the quiet side. TFI fuel control Progressive 430 shocks 430-4213B (Best Mod to the bike I've made) Progressive fork springs (See Above) Kuryakyn grips A touch of chrome farkles Reckless fairing color match 2 tone paint. Kenwood deck with Polk 5 1/4" speakers. 2007 GSX1250 Stock for now Login or Register to Remove Ads
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07-02-2016, 01:24 AM	#17
Mikanic Jr. Member Join Date: Apr 2016 Location: Southern Indiana Posts: 9	Update; The bike had sat for a long time obvously. I believe now it may be water pump. the sound started again today after it warmed up. I tapped the water pump housing and it stopped. Bearing or totalwater pump exchange.I dont believe it is sucking antifreeze from resivior as it is still a pretty green and level is the same. What do you think? __________________ Ride it like you stole it..... With your past behind you,the open road is all that lies ahead.
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07-02-2016, 03:51 PM	#19
Mikanic Jr. Member Join Date: Apr 2016 Location: Southern Indiana Posts: 9	water pump Tried to take cover off for visual inspection of impeller.Bolts came out but could not remove cover,didnt want to break it. __________________ Ride it like you stole it..... With your past behind you,the open road is all that lies ahead.
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