Is this the original Rover pump? In my MGB V8 days there were concerns about the clearance of the impeller, and the size of this varied according to who had manufactured it. Some were far less efficient than others, and the replacement I fitted in 1991 had a much smaller impeller than the 1972 original, even though from the outside it looked almost the same.
Dave. -----Original Message----- From: Dave Ager [mailto:[email protected]] Sent: 17 July 2012 20:44 To: mogtalk2 Subject: [mogtalk2] Plus eight water pump. Technical Hi All. My plus eight has the normal problem of getting hot when stationary. I have opened the rear of the bonnet 40mm and fitted an aluminium rad. Still have a slight issue. Before fitting an oil cooler a guy at LeMans suggested fitting a smaller pulley to the water pump to draw more water through the system. With a standard 97 3.9 hotwire I believe I may have room on the pump to try this, engine doesn't rev as high as a worked 4.6. However before I start machining a billet I would like to check the pump characteristics to ensure I don't end up with cavitation in the pump. Currently toying with a 10-15 % speed increase. Now the point . Can anyone provide a spec for the water pump, preferably with characteristic curves. Thanks in advance. Dave 97 plus 8 ------------------------------------------- View posts on The Mail Archive http://www.mail-archive.com/[email protected]/ [http://www.mail-archive.com/[email protected]/] Modify Your Subscription: https://www.listbox.com/member/?&; Powered by Listbox: http://www.listbox.com ------------------------------------------- View posts on The Mail Archive http://www.mail-archive.com/[email protected]/ [http://www.mail-archive.com/[email protected]/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785&id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
