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MG MGB Technical - How to replace a blown welch plug!

It is hard to get a good swing with the hammer unless you take this stance!

Mike Ellsmore

i think that's admirable.
if i were you i would clean the outside well and put a coating of JBweld or similar (one of the metal putties?) along the seam. belt n braces. especially since as you write - difficult to get a good swing....
G

and if you were in the UK..... you wouldn't be wearing shorts!
Graham Moore

Get an expandable welch (freeze) plug.

Simply insert and tighten. No hammering needed.

https://www.summitracing.com/parts/rnb-02601?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-dorman&gclid=CKTM06jcw9MCFQa2wAodk2IDug




Steven Rechter

Interestingly we tried a Dorman adjustable plug but had trouble getting it to expand so opted for a new brass plug
http://www.mgaguru.com/mgtech/cooling/cool_105a.htm
(That's not me in that confined space but the more youthful owner - location Mallala raceway for Nat Meeting super sprint competition - insertion was successful and owner completed the last run)
Mike
Mike Ellsmore

Hi Mike
Did your MGA do the business in Adelaide

willy
William Revit

Yes Willie, all went well considering I limited rpm to 5,500 (300kms on engine only). Car ran and sounded great.
Mike
Mike Ellsmore

Good one - congrats on your pre event efforts
William Revit

If the last guy used JB weld then you will need JB weld. Otherwise a not very good idea. The expandable sort are ok maybe for an emergency, but they will not stay in there for very long before they go to pieces.
J MacDonald

This thread was discussed between 26/04/2017 and 28/04/2017

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