Parts needed for waterpump mounting on USHM3

for those with Series MM sidevalve cars produced between September 1948 and February 1953

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TvdWerf
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Parts needed for waterpump mounting on USHM3

Postby TvdWerf » Sun Jan 08, 2017 2:28 pm

Can someone tell what parts are needed for mounting these parts?
I can order this one at ESM:
http://www.morrisminorspares.com/coolin ... ve-p829614
but the other hole need a part to close it, I think a drain or something like that..
Sometimes the pump is on Ebay, but never seen the other parts.
MM '51 LHD sidevalve

RobThomas
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Re: Parts needed for waterpump mounting on USHM3

Postby RobThomas » Wed Jan 11, 2017 1:47 pm

I seem to remember that the 2 bolts for this part are 8mm Metric Fine thread, not British sizes, although corrosion makes the Metric ones loose and 5/16 is about 7.95mm. Drain hole is maybe BSP thread? Try the one from the Morris 1000 radiator or even close it with weld? The drain is only there for very cold days if you want to empty the engine overnight.

TvdWerf
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Re: Parts needed for waterpump mounting on USHM3

Postby TvdWerf » Wed Jan 11, 2017 6:52 pm

I can re-use the original M8x1.0 bolts, but the drain is what I like to have as original as possible.
Not for cold weather, my garage has floor heating, and the car is only on the road when it is not freezing ;)
MM '51 LHD sidevalve

RobThomas
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Re: Parts needed for waterpump mounting on USHM3

Postby RobThomas » Wed Jan 11, 2017 8:14 pm

http://www.bmcfarina.com/contents/en-uk ... iator.html ??? :D

If you can give me 1/2 hour I shall find the correct part number for it.

Rob

RobThomas
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Re: Parts needed for waterpump mounting on USHM3

Postby RobThomas » Wed Jan 11, 2017 8:21 pm

163129 is the Series MM drain part number. The image in the book shows it to have a single bent arm rather than the winged arm in the link above. It also shows a washer which suggests that it is a parallel thread, not a tapering one.
The MM Radiator drain part number is ARH515, so, it isn't the same part but looks similar.

Maybe like this...? http://britishclassicspareparts.com.au/ ... mini-riley

I hope this helps.

Rob

sirrom918
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Re: Parts needed for waterpump mounting on USHM3

Postby sirrom918 » Tue Jan 17, 2017 6:52 pm

I've a feeling the thread in the alloy water housing should be 1/8" BSP - I'd ask ESM to confirm that this is the case - if so then the following brass drain taps on the vintagecarparts website should fit, together with a suitable fibre washer - their part numbers are: 341 & 338.
1/8" x 28 TPI BSP.

https://www.vintagecarparts.co.uk/categories/vintage-car-parts-taps-pipe-and-fittings-taps-drain


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