leaking waterpump

GixrFixr · 03-28-2009, 03:42 PM

Hey everybody, still doing maintennance on my 2001 i bought last fall, i notice there is a slow coolant leak from the bottom of the pump cover, maybe 3 or 4 drops per day. The Haynes manual says this indicates the internal seal is shot, the seal is non-replaceable, so replace the whole pump. Bike has only 13K miles, does this sound feasible?

KingTito · 10-26-2009, 09:56 AM

Did a search and found this attempted thread so I thought I would restart it instead of reposting.

I have a 1999 that I bought last year, fully sorted out. Cleaned up everything, changed all fluids, just finishing up the chain.

I cleaned the inside of the fairings so they are spotless.

Pulled the left to change the chain. Noticed a little drip mark correponding to the water pump.

After I ride, I can wipe underneath the water pump and there will be a little coolant weepage.

Looks like it would just be the cover and that gasket right? I shouldn't have to replace the whole water pump.

Thanks!

goinphaster · 10-26-2009, 12:05 PM

There are two seals to the water pump. one for the two sections that are bolted together, and the one for the shaft that cannot be replaced. if the leak is coming from in between the two sections that are bolted together then you can replace the seal. if the leak is coming from a round hole that is more towards the inside of the engine then it is the shaft seal of the pump and you will need a new pump.

KingTito · 10-26-2009, 01:01 PM

Thanks! It would appear to just be from the cover on the left side of the engine. So, I assume I just drain the coolant from the drain plug right there, pop that cover off, replace the gasket, and see what happens, right?

Would replacing the water pump be prudent since I'm there? Given the low mileage and the ease of draining the coolant and doing this all over again should I have to, I would figure not.

TOE CUTTER · 10-28-2009, 07:17 PM

I have a gen 5 water pump with about 14,000 miles on it and it is good shape. You are welcome to it for the cost of postage.

ChatBox (No new messages since your last visit)
Loading...
Message...
Ask your questions in the forums. The ChatBox is for small talk. Lamps to everyone!

03-28-2009, 03:42 PM	#1 (permalink)
GixrFixr Junior Member Join Date: Dec 2008 Last Online: 06-17-2009 08:58 PM Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts	leaking waterpump Hey everybody, still doing maintennance on my 2001 i bought last fall, i notice there is a slow coolant leak from the bottom of the pump cover, maybe 3 or 4 drops per day. The Haynes manual says this indicates the internal seal is shot, the seal is non-replaceable, so replace the whole pump. Bike has only 13K miles, does this sound feasible?

10-26-2009, 12:05 PM	#3 (permalink)
goinphaster Senior Member Join Date: Dec 2006 Last Online: Yesterday 06:35 AM Location: Lemoore, CA My Ride: 06 VFR800 White, 95 RVF400, 02 CBR954RR, 85 VF500C MAGNA, 83 VF750C MAGNA View my Photo Gallery Posts: 502 Thanks: 9 Thanked 13 Times in 12 Posts	There are two seals to the water pump. one for the two sections that are bolted together, and the one for the shaft that cannot be replaced. if the leak is coming from in between the two sections that are bolted together then you can replace the seal. if the leak is coming from a round hole that is more towards the inside of the engine then it is the shaft seal of the pump and you will need a new pump. __________________ Tuck in behind me; I'll show you where to crash...... I rode my Bike to Trailer week.

10-28-2009, 07:17 PM	#5 (permalink)
TOE CUTTER Banned Join Date: Nov 2008 Last Online: Yesterday 09:47 PM Location: Sacramento - Find Me! My Ride: 2007 RWB 1990 RED 1986 750 DRZ 400 View my Photo Gallery Posts: 1,338 Thanks: 75 Thanked 120 Times in 108 Posts	Water pump I have a gen 5 water pump with about 14,000 miles on it and it is good shape. You are welcome to it for the cost of postage. __________________ Government exists to protect us from each other. Where government has gone beyond its limits is in deciding to protect us from ourselves. Ronald Reagan

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

10-26-2009, 09:56 AM	#2 (permalink)
KingTito Member Join Date: Jul 2008 Last Online: Today 07:06 AM Location: Minneapolis, MN - Find Me! My Ride: 1999 VFR800 1982 CB900F 2007 Honda Metropolitan (WTF? It's fun, trust me) View my Photo Gallery Posts: 74 Thanks: 3 Thanked 2 Times in 2 Posts	Did a search and found this attempted thread so I thought I would restart it instead of reposting. I have a 1999 that I bought last year, fully sorted out. Cleaned up everything, changed all fluids, just finishing up the chain. I cleaned the inside of the fairings so they are spotless. Pulled the left to change the chain. Noticed a little drip mark correponding to the water pump. After I ride, I can wipe underneath the water pump and there will be a little coolant weepage. Looks like it would just be the cover and that gasket right? I shouldn't have to replace the whole water pump. Thanks!

10-26-2009, 01:01 PM	#4 (permalink)
KingTito Member Join Date: Jul 2008 Last Online: Today 07:06 AM Location: Minneapolis, MN - Find Me! My Ride: 1999 VFR800 1982 CB900F 2007 Honda Metropolitan (WTF? It's fun, trust me) View my Photo Gallery Posts: 74 Thanks: 3 Thanked 2 Times in 2 Posts	Thanks! It would appear to just be from the cover on the left side of the engine. So, I assume I just drain the coolant from the drain plug right there, pop that cover off, replace the gasket, and see what happens, right? Would replacing the water pump be prudent since I'm there? Given the low mileage and the ease of draining the coolant and doing this all over again should I have to, I would figure not.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
1986 VFR, those brown T's are leaking :(	Tulok	Mechanics Garage	2	11-09-2008 08:35 PM
Leaking Radiator	Superceptor02	Mechanics Garage	2	08-30-2008 08:09 PM
Carbs leaking ~1GPM!	lammbn	First & Second Generation 1983-1989	10	07-25-2008 12:25 PM
Master cylinder leaking?	GPracer2500	Fifth Generation 1998-2001	4	01-28-2008 08:53 PM
Leaking	interceptorfanatic	First & Second Generation 1983-1989	4	06-14-2007 11:10 PM