Water Pump: Rebuild or Replace?
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- manco
- Brass Member
- Posts: 28
- Joined: Wed Jul 27, 2016 1:05 pm
Water Pump: Rebuild or Replace?
I have an 82 gl1100 that appears to have a weeping water pump. There is some dried coolant residue underneath the pump near the weep hole is why I think this. No major leaks or drips at this time though.
I haven't torn into the pump yet but did start doing some research into the project. I have seen whole pumps for sale as well as pump rebuild kits with seals and bearings. The OEM manual says to only replace the pump and not rebuild it. I have rebuilt a few auto steering and water pumps before with success that were also noted to be not rebuildable so I know these pump rebuilds are possible. I am looking for some input on the specific case of goldwing water pumps though. Has anyone rebuilt one before? Are special tools besides seal and bearing presses needed? How were the results?
As to why I would rebuild over replace its simply cause I am cheapskate.
I haven't torn into the pump yet but did start doing some research into the project. I have seen whole pumps for sale as well as pump rebuild kits with seals and bearings. The OEM manual says to only replace the pump and not rebuild it. I have rebuilt a few auto steering and water pumps before with success that were also noted to be not rebuildable so I know these pump rebuilds are possible. I am looking for some input on the specific case of goldwing water pumps though. Has anyone rebuilt one before? Are special tools besides seal and bearing presses needed? How were the results?
As to why I would rebuild over replace its simply cause I am cheapskate.
1982 GL1100 Aspencade w/ California Sidecar
- Track T 2411
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Re: Water Pump: Rebuild or Replace?
There have been several members who've done the rebuild, and at least one thread with step-by-step pics. I think it was within a build thread in the restoration forums.
"I have no special talent. I am only passionately curious." - Albert Einstein
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
- Track T 2411
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- Location: Prairie du Sac Wisconsin
Re: Water Pump: Rebuild or Replace?
Here's the link. Starts on post #29. http://www.ngwclub.com/forum/viewtopic. ... d&start=15 Good luck!
"I have no special talent. I am only passionately curious." - Albert Einstein
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
"He that is good with a hammer tends to think everything is a nail" - Abraham Maslow
"If you can't take the time to do it right the first time, how are you ever going to find the time to do it over?" -Unknown
Current Rides:
'Grumpy' - '81 Standard, now fully dressed.
'Layla' - '81 Standard w/dealer installed fairing and Hondaline bags.
'Scarlett' '76 'Survivor' nekkid as a j-bird!
Under Construction:
The 'Jalopy' '78-'79 Mash-up
'Quikie' '81 gl1100I back on the lift, project with the step-son!
In The Shed:
'81 gl1100I barn find aka "Josie, the farmer's daughter." (almost comatose build)
'77 gl1000, roller parts bike.
'82 gl1100I, 'Old Crusty' titled roller parts bike (free!)
'82 gl1100I, My first 'Wing, and an expensive lesson!
New2U Bike? Read Me.
- hacksaw1945
- Silver Member
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- Joined: Tue Jul 21, 2009 9:22 pm
Re: Water Pump: Rebuild or Replace?
I would not be to worried with dry coolant around the weep hole, but leaks or drips under the bike, would worry me. Before I torn into the pump I would drain the system and take off the bottom 90 going to the engine from the bottom of the radiator once off I would check how much play you have on the impeller. Go to shop talk and read up on water pumps first. My impeller had 1/2" play in all directions and was dripping. So ride some more and keep an eye on it. It is a job the takes time and you don't want to do it, if you don't need to.
1977 Honda GL 1000, 1982 Honda GL 1100I went naked, 1976 Honda LTD rough long range project, 1945 Indian Chief, 1947 Indian Chief, 1948 Indian Chief, 1958 Cushman Highlander, 1959 Cushman 3 wheel Mailister, 1966 Triumph TR6,
- CYBORG
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Re: Water Pump: Rebuild or Replace?
Just to add to the conversation, I have several good used ones, and at least one rebuilt one. They are easy to rebuild.
1978 custom GL1000
1977 custom with 1200 engine
1985 gl1200
1977 custom with 1200 engine
1985 gl1200
- manco
- Brass Member
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- Joined: Wed Jul 27, 2016 1:05 pm
Re: Water Pump: Rebuild or Replace?
Thanks for the info guys. I did more research and found a tutorial on rebuilding the pump. It does look pretty straight forward to rebuild. I looked under my bike again today and it does look damp with a drip. My guess is its leaking about a drip or two per day as its dry on the floor underneath the bike. I am gonna tear into the pump to see what is going on. I am also planning a new thermostat and a radiator flush too. Maybe I will replace the hoses as well. I have a new cap already so that is a start.
1982 GL1100 Aspencade w/ California Sidecar
- Roady
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Re: Water Pump: Rebuild or Replace?
Check for freeplay on the impeller first. If none or minimal, you may just need new o-rings and crush washers.
- jdvorchak
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Re: Water Pump: Rebuild or Replace?
Glad to see you back online Roady
New users please visit our "Shop Talk" for common tips and help:
http://ngwclub.com/forum/page/ST
Don't fix it 'til it's broke...
The person with the most toys wins!
If it has wheels or a skirt you can't afford it.
Amateur Radio Station WW9L
71 CL350 with Bingham side car
2021 HD Triglide
2008 HD Dyna Low Rider
83 KZ1100L1 Son totaled it
83 KZ550LTD Shaft sold
Previous bikes: 84 GL1200 STD, 83 KZ550LTD, 83 CB1000, 78 CB400A, 82 CB900F, 79 CB750K, 2001 GL1800, 2000 Dyna Super Glide, 1972 CB350 K4, 1985 GL1200A, 1997 1200 Sportster, 84 GL1200I, 82 Honda CM400E, 81 Suzuki GS650L, 72 Triumph Bonneville 750, 72 Honda CB350, 66(?) Honda 305 Scrambler, 6? Yamaha yz250, 62 650 Matchless (Norton-Villers).
John
http://ngwclub.com/forum/page/ST
Don't fix it 'til it's broke...
The person with the most toys wins!
If it has wheels or a skirt you can't afford it.
Amateur Radio Station WW9L
71 CL350 with Bingham side car
2021 HD Triglide
2008 HD Dyna Low Rider
83 KZ1100L1 Son totaled it
83 KZ550LTD Shaft sold
Previous bikes: 84 GL1200 STD, 83 KZ550LTD, 83 CB1000, 78 CB400A, 82 CB900F, 79 CB750K, 2001 GL1800, 2000 Dyna Super Glide, 1972 CB350 K4, 1985 GL1200A, 1997 1200 Sportster, 84 GL1200I, 82 Honda CM400E, 81 Suzuki GS650L, 72 Triumph Bonneville 750, 72 Honda CB350, 66(?) Honda 305 Scrambler, 6? Yamaha yz250, 62 650 Matchless (Norton-Villers).
John
- Roady
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Re: Water Pump: Rebuild or Replace?
Thanks John. I lurk a lot but post little.
- Rat
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Re: Water Pump: Rebuild or Replace?
If the bike's been sitting, ride it for a while .... might tighten up ....
Gord
Gord
"I'd rather Ride than Shine"
‘14 KLR650 ... not a rat ... yet
‘84 GL1200i ‘R2B6' (Rat to Be 6, the last, adopted by twowings)
My Original 'RAT' was a hybrid '82 CB900/1100F
‘14 KLR650 ... not a rat ... yet
‘84 GL1200i ‘R2B6' (Rat to Be 6, the last, adopted by twowings)
My Original 'RAT' was a hybrid '82 CB900/1100F
- manco
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Re: Water Pump: Rebuild or Replace?
I tore it down today. In the pump the seals are bad, bearings are bad and impeller is cracked. Also the cover had a bad gasket and corrosion around a broken oring for one of the water ports. I am just gonna have to rebuild all of it. Good thing I tore it down to find out the issues. Parts are on the way now. I think I can smooth over the corrosion with the jb weld. Its not too bad.
1982 GL1100 Aspencade w/ California Sidecar
- BlueThunder
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Re: Water Pump: Rebuild or Replace?
Seeing what a PITA replacing the water pump is, I replaced mine with a new one. All new o-rings, washers, etc. I don't want to do it again for another 30 years. There are too many tales on the lack of quality in rebuilt pumps for me to risk using one.
...Brian
2014 CTX1300 Deluxe - BlackThunder aka Predator
1977 GL1000 - Ox
2014 CTX1300 Deluxe - BlackThunder aka Predator
1977 GL1000 - Ox
- manco
- Brass Member
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- Joined: Wed Jul 27, 2016 1:05 pm
Re: Water Pump: Rebuild or Replace?
That's pretty much what I decided too. I hate doing things twice. Considering with the Goldwing pump water can get to the oil, oil can get to the water plus other issues possible if things go wrong doing everything new seems to be the best route. I am gonna do all new gaskets and seals in the transmission cover too while I at it. Fingers crossed for another 30 years once its done.
1982 GL1100 Aspencade w/ California Sidecar
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