Oil leak from water pump
Posted: 09 Nov 2010 16:34
This morning I noticed that the slot under the water pump has started to leak oil after my journey on the weekend. [:(]
It seems to be losing quite a lot of oil as the level dropped from the top to the bottom mark on the dipstick after less than 70klm.
I haven't ever had to remove or refit the water pump before but have heard other's horror stories. I don't currently have a slide hammer or other suitable tool to remove the pump so would appreciate recommendations. (I'll also search past postings.)
SprintParts (in Sydney) offer a [url="http://www.sprintparts.triumphowners.com/products.cgi?sectionID=480039&articleID=480069#"]recond 12 vane unit[/url] on exchange "from" AU$229, which should be a bit cheaper than shipping one from UK.
Alternatively, I could get the [url="http://www.rimmerbros.co.uk/Item--i-RB7062"]Water Pump Repair Kit[/url] but seem to recall hearing that the bottom of the impellor should be machined. Opinions please.
Rimmers site suggests that the [url="http://www.rimmerbros.co.uk/Item--i-145022"]Water Pump Spindle Bush (145022[/url]) should be replaced whenever renewing the pump. Can someone advise how to remove this as there does not seem to be a ROM listing?
I suspect the failure of the water pump oil seal may be due to changes in crank case pressure. When I fitted the DCOEs, based on advice from a club member, I plumbed the crankcase breathing tube from the top rear of the timing cover to the charcoal canister as the carb setup does not provide a port for vacuum pickup as was done with the SUs. My assumption here is that this has caused an increase in crankcase pressue as there is no longer under vacuum. Since doing this I have a small discharge of oil around the Sprint sump dip stick, not major, but suggesting some ring blow by. I'm going to change this setup would appreciate advice on how to rig this better.
It seems to be losing quite a lot of oil as the level dropped from the top to the bottom mark on the dipstick after less than 70klm.
I haven't ever had to remove or refit the water pump before but have heard other's horror stories. I don't currently have a slide hammer or other suitable tool to remove the pump so would appreciate recommendations. (I'll also search past postings.)
SprintParts (in Sydney) offer a [url="http://www.sprintparts.triumphowners.com/products.cgi?sectionID=480039&articleID=480069#"]recond 12 vane unit[/url] on exchange "from" AU$229, which should be a bit cheaper than shipping one from UK.
Alternatively, I could get the [url="http://www.rimmerbros.co.uk/Item--i-RB7062"]Water Pump Repair Kit[/url] but seem to recall hearing that the bottom of the impellor should be machined. Opinions please.
Rimmers site suggests that the [url="http://www.rimmerbros.co.uk/Item--i-145022"]Water Pump Spindle Bush (145022[/url]) should be replaced whenever renewing the pump. Can someone advise how to remove this as there does not seem to be a ROM listing?
I suspect the failure of the water pump oil seal may be due to changes in crank case pressure. When I fitted the DCOEs, based on advice from a club member, I plumbed the crankcase breathing tube from the top rear of the timing cover to the charcoal canister as the carb setup does not provide a port for vacuum pickup as was done with the SUs. My assumption here is that this has caused an increase in crankcase pressue as there is no longer under vacuum. Since doing this I have a small discharge of oil around the Sprint sump dip stick, not major, but suggesting some ring blow by. I'm going to change this setup would appreciate advice on how to rig this better.
