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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 - XPEG Crank Pulley Diameter

Need the outer diameter of the crank pulley on an XPEG engine. Anyone? PJ

Oops, I should have said, circumference.
Paul Jennings

Paul,
As far as I know I think the diameter is 3.75" (95.25mm)for an XPAG-not familiar with XPEG.
x 3.142=circumference.
Regards
Declan
D Burns

Thanks Declan, much appreciated. Tried to measure mine, but couldn't get my hands down there to do so. PJ
Paul Jennings

Pretty sure all the pulleys are the same. Maybe I can get to one to measure this weekend, I have several in the attic. BTW, today is Pi day, what a timely question! George
George Butz

Did that on purpose George! LOL. PJ
Paul Jennings

I am just starting a rebuild and had them in a book.

Here it is.

JWP Policastro

Just in case.

JWP Policastro

Mr. Jennings:


There's an article by Skip Burns on the "Chicagolandmgclub" website at the bottom of the page that states that the crankshaft pulley diameter for the T-series engine is "... 3.74" - which multiplied by "pi" (3.1416) - results in a pulley circumference of 11.75 inches...".

I assume that the pulleys on the TD (XPAG) and the TF (XPEG) are the same diameters - the Abingdon Spares website lists the same part number for both.

Here's the link:

http://www.chicagolandmgclub.com/techtips/mgt/tune_up1.html


Charlie King
'52 TD 16504
C. G. King

Thanks fellas, much appreciated! J
Paul Jennings

I measured 3 various ones-original and older repro and they were all same as above. George
George Butz

Xpag Xpeg crankshaft pulleys do differ in diameter, late crankshaft pulleys will be marked R2 the size was increased to be identical diameter to the water pump pulley, which is about 105mm. R2 coding refers to the late better steel crankshafts which were machined down .020 to be used in replacement Gold Seal engines. The 1st photograph of JWP Policastro shows one of these crank pulleys
Grant Ownes

This thread was discussed between 13/03/2017 and 21/12/2022

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