Water Pump spindle Left Hand thread

[alansti]

Hi All, I'm trying to extract the Water Pump from my spare engine but while trying to prise the pump out by fitting a large washer under the Left handed bolt I seem to have stripped the lower 3/4 of the thread. Does anyone know the correct size die to recut the thread in the pump spindle please?

[dursleyman]

I think it might be easier to just replace the spindle unless you can find a left-hand tap of the right size.

I have measured a spare one as best I can and it seems to be 5/16" with a TPI of 24. Certainly not metric as none of my thread gauges fit.

Best of luck.

Russ

1980 TR7 Sprint DHC, 1981 TR7 Sprint DHC
Dursley
UK

http://tr7russ.blogspot.co.uk/

[alansti]

Thanks for checking Russ, I'll probably need to restore the thread just to get the old spindle out. It maybe worth tapping a right hand thread though.