Robert Davidson's Journal

Home Page: Robert Davidson
Grand Rapids, MI, USA

Total Posts: 4

Water Pump

Robert Davidson — Posted on The MG Experience
Thursday August 4, 2016 3:50 PM

After returning from Kentucky I had to replace the water pump. This is the third one since 2006. Really frustrating since they only seem to last for 8 to 10thousand miles. What's a boy to do. I also had my fuel sending unit quit on the Kentucky trip, and I developed a bit of a new oil leak at the bottom and rear of the engine due to excessive pressure in the sump. That issue was caused by the side cover vent system being plugged with crud in the mesh filter. New wire mesh and the leak was solved. I shouldn't complain since that these were the first problems I have had on a trip in 5 years. Happy motoring.

Member Comments on Journal Entry: Water Pump ↵

2016-08-05 13:24:09 # 36393

Comment by Roger N. Tanner

Excessive pressure in the sump means your vents to the atmosphere are plugged up. I don't know where you are buying your water pumps; but, my water pump has been the same after 79,000 miles. Can I assume your coolant system has anti-freeze as well as just water. Pure water doesn't give as much lubrication, compared to water and modern anti-freeze. Are you having over-heating problems?You might need to send your radiator out for cleaning at the local radiator shop. They unsolder the top and bottom tanks, and mechanically clean the tubes in the radiator core. If it fails this cleaning because it is too corroded, and new radiator is in order. Don't be surprised if the radiator shop and/or the local auto supply can have an MGB radiator shipped in a few days.With fresh coolant, every two years (drain and install new water and coolant) I have driven my 1977 MGB 79,000 miles without any cooling problems or water pumps failures.I was taught to do these ways to keep a coolant system by a 70 year old mechanic when my

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