Axle clonk

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

Post by alanworland »

I had an annoying clonk coming from the rear upon power take up and over run, had a look tonight and found the axle 'U' bolts not that tight so nipped them up with their locknuts.
I recently removed two spring leaves to improve suspension and I can only think that the assembly has 'settled down' - seems ok now!
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DAVIDMCCULLOUGH
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Re: Axle clonk

Post by DAVIDMCCULLOUGH »

Its always nice when these things are easily sorted out :D


Too many Minors so little time.....
alanworland
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Re: Axle clonk

Post by alanworland »

Yes, it happens occasionaly! I don't like doing these 'U' bolts up too tight for fear of crushing the axle! or am I worrying too much?
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mike.perry
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Re: Axle clonk

Post by mike.perry »

Have you got the 7 leaf Traveller springs (minus two)?
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alanworland
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Re: Axle clonk

Post by alanworland »

I don't know if they are Traveller springs,but they are 7 leaf ones which I have removed 2 leaves from!
(much better ride)
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mike.perry
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Re: Axle clonk

Post by mike.perry »

Original Series MM seven spring leaves are thinner than Traveller spring leaves
MM = 7/32 in, 5.56mm, Traveller & M1000 1/4 in, 6.35mm
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katy
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Re: Axle clonk

Post by katy »

I recently removed two spring leaves to improve suspension and I can only think that the assembly has 'settled down' - seems ok now!
Is there enough thread on the U-bolts to allow proper tightening after you removed those 2 leaves?
If the U-bolts come loose again you may want to "double-nut" them.
Talk slow, think fast!
alanworland
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Re: Axle clonk

Post by alanworland »

Yes Mike, I know the early leaves were thinner - but I didn't when I got rid of my originals!
Katy, I did wonder if there was going to be enough thread, but there is! I have the correct locknuts in position and can only imagine it was caused by an 'initial' settling after I had disturbed it all.
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sevrien
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Re: Axle clonk

Post by sevrien »

So the length of the rear springs is the same as those from later series?
I'd like to change them, but i wan't to make sure they'll fit.

greetings
mike.perry
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Re: Axle clonk

Post by mike.perry »

You can swap the original 7 leaf springs for M1000 5 leaf springs or you may be able to get the original springs re set.
Apart from giving a harsher ride, Traveller springs make the back of the car sit too high, accentuated by the high cut of the rear wings.
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