Water pump damage
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wrote on 12 Oct 2017, 11:55 last edited by
Not sure how well the photo shows it but this is the water pump impeller from the 89 bike. No additive in coolant and waterways pretty grotty, shaft is pitted and bearing surface more or less destroyed, another part to order. Always use additive!
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wrote on 12 Oct 2017, 12:23 last edited by
How tight do the tolerances need to be I wonder?
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wrote on 12 Oct 2017, 12:31 last edited by
Damn I always mix my coolant with distilled water, is that what you mean by additive?
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wrote on 12 Oct 2017, 14:13 last edited by
@ricky0115 Rust inhibitor
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wrote on 12 Oct 2017, 14:31 last edited by
I have a new pump seal to go on but don't think it will last long with that shaft (if at all) , ordered replacement, there is a polished surface on the shaft that's destroyed, very little left.,don't know if it is a coating but tried polishing rough surface down but no good. Not willing to risk a leak.
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I have a new pump seal to go on but don't think it will last long with that shaft (if at all) , ordered replacement, there is a polished surface on the shaft that's destroyed, very little left.,don't know if it is a coating but tried polishing rough surface down but no good. Not willing to risk a leak.
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wrote on 12 Oct 2017, 14:50 last edited by
It's not the end of the world, the pitting can be welded up then reground out, probably cheaper to buy a new impeller.
Or you could turn the impeller down on a lathe and create a press fit shim onto the shaft.
You know, in the event the part is discontinued...
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It's not the end of the world, the pitting can be welded up then reground out, probably cheaper to buy a new impeller.
Or you could turn the impeller down on a lathe and create a press fit shim onto the shaft.
You know, in the event the part is discontinued...