Water pump is ready to go in.


Information and questions on GL1000 Goldwings (1975-1979)
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Viol1736
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Joined: Fri Oct 27, 2017 12:52 pm
Location: North Canon Ohio
Motorcycle: 1975 gl1000 x2

Water pump is ready to go in.

Post by Viol1736 » Thu Mar 15, 2018 9:15 am



Parts are all cleaned and ready for reassembly. The previous mechanic utilized silver silicone sealer. It was a lot of scraping and scrubbing to get them clean. I found the old pump was ok, just bad oil seals. I have noise in the front of the engine. So....do oil pumps make clicky grinding sounds. My next venture will be to check the idler pulleys.
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virgilmobile
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Re: Water pump is ready to go in.

Post by virgilmobile » Thu Mar 15, 2018 11:52 am

Generally no.I have never heard of oil pump issues on these bikes...Not to say it's not impossible to damage one but if the oil pump is clicking and grinding the whole engine is likely damaged too.
Remember,the impellers in the dual pump run in oil.
Idler pulley bearings are more likely.Same thing..they must be glass smooth rolling and little to no movement in the bearing.

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Viol1736
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Re: Water pump is ready to go in.

Post by Viol1736 » Thu Mar 15, 2018 12:18 pm

Should a water pump spin glass smooth? The old one does....a newer replacement I’m thinking of installing does not.

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virgilmobile
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Re: Water pump is ready to go in.

Post by virgilmobile » Thu Mar 15, 2018 1:07 pm

I'm using the word "spin" somewhat loosely.
Ya really can't just spin it with your fingers like a fan blade.It should rotate with resistance but be smooth to the rotation touch No gravel feel and no in/out or lateral play in the shaft.
In your hand.Not mounted

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Viol1736
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Location: North Canon Ohio
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Re: Water pump is ready to go in.

Post by Viol1736 » Thu Mar 15, 2018 1:43 pm

I dismantled the old one...there are two bearings....the water side berring was shot...the oil side berring was good...it still spun nicely...the bad one was so bad it offered no resistance. Glad I did not reinstall it! It had very little side to side movement, although some.

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Viol1736
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Location: North Canon Ohio
Motorcycle: 1975 gl1000 x2

Re: Water pump is ready to go in.

Post by Viol1736 » Thu Mar 15, 2018 2:06 pm

Here is what they look like



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virgilmobile
Posts: 8311
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Water pump is ready to go in.

Post by virgilmobile » Thu Mar 15, 2018 3:06 pm

Good thing you checked.ya gonna rebuild it?
The bearings,when in good shape turn smooth,they don't spin freely.The grease and seal does have a drag effect just as the front water ceramic seal does have a drag on the shaft.

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Viol1736
Posts: 33
Joined: Fri Oct 27, 2017 12:52 pm
Location: North Canon Ohio
Motorcycle: 1975 gl1000 x2

Re: Water pump is ready to go in.

Post by Viol1736 » Thu Mar 15, 2018 3:11 pm

I was tempted to rebuild it. Just going to replace it. There is a good $30 rebuild kit on eBay. If my replacement pump fails I will try rebuilding it. This is just too much fun.

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virgilmobile
Posts: 8311
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Water pump is ready to go in.

Post by virgilmobile » Thu Mar 15, 2018 3:40 pm

I went through the same.Rebuilt one and damaged the front water seal...rebuilt another with success...total cost for parts and time spent would have paid for a new one.

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virgilmobile
Posts: 8311
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Water pump is ready to go in.

Post by virgilmobile » Thu Mar 15, 2018 3:44 pm

Be careful when putting it together.Grease up the "O" rings so they don't get damaged when you put it back.Easy assembly force.Dont hammer it into place.
Its common to skin a part of the "O" ring on the casting edge.



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