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MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGB Technical - Water Pump Diameter

I recently bought a replacement water pump for my 1971 MGB. It is marked VF016 and QCP738. It has a flange and impeller diameter of around 60mm. The one I removed has a flange and impeller diameter of around 74mm - hence it probably won't seal properly. Anyone know when a change was made and which engine the new one might fit?? Thanks Andrew
Andrew Walton

Must be a misboxed item. No MBG used such a small diameter pump. I believe that all MGB motors have the same physical water pump openings and bolt hole/mounting and the differences in pumps involve shaft length and mounting points for air pumps.
I'm thinking you have a midget pump. I see that there is a QCP748 listed for midget,
rick

I just looked at a picture of a QCP748 so THAT ain't it, but still think that someone mistook a Midget pump for a B and put it in your QCP738 box. At a glance it looks like the QCP738 is the right pump for your 71, you just didn't get a QCP738 pump in your QCP738 box.
rick

This thread was discussed on 04/02/2007

MG MGB Technical index

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