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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 TD TF 1500 - Water Pump Grease Nipple Thread

Anyone know the thread type & size on the original TC & TF water pump grease nipple? Cheers
Peter TD 5801
P Hehir

Peter,
Mine is 5/16", 22 TPI, BSF.
John
John Walton

You sure that's the grease nipple John & not the pulley end of the shaft? Cheers
Peter TD 5801
P Hehir

I would have thought 1/8" BSP, which has an OD of 0.383" and 28 TPI. If larger, it could be 1/4" BSP, with OD 0.518" and 19 TPI.
R A WILSON

Definately 5/16" BSF. I ran a tap through the hole just to check.
John
John Walton

The shaft is also 5/16" BSF.
John
John Walton

Thanks John. I have a 5/16" BSF tap so I'll double check & then proceed with confidence. I need to use the threaded hole to secure the TC pump to a hunk of steel round stock which I can then offer up to the lathe. Cheers
Peter TD 5801
P Hehir

Peter,
Are you machining for a new seal ????

Steve
Steve Wincze

Yes Steve. But that will only be for the original TC pump which I'll get onto a little later. The TF pump that I'm restoring now doesn't require machining, apart from dressing the face of the impeller. I have all the components now including a new seal & I'm almost ready to assemble it. Picked up the new circlips with eyes, the 1 1/2" RMS (to hold the TC pump in the lathe) & some 9/16" 316 stainless rod this morning, so I can make some new shafts if needs be. Cheers
Peter TD 5801
P Hehir

The machinist who is making the 8 new 316 stainless shafts for me confirms the thread on the two original shafts I gave him to use as templates, is 5/16" UNF. The grease nipple in the body of the pump is definitely 5/16" BSF. Cheers
Peter TD 5801
P Hehir

This thread was discussed between 11/02/2016 and 23/04/2016

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