mastiff front sprocket nut

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mastiff front sprocket nut

Postby ericetz301 » Mon Nov 02, 2015 5:38 am

hi folks,
collective wisdom required, I need to change the front sprocket, (new chain & sprockets) and I cannot undo the nut holding the sprocket, I`ve tried long extension leaver + my 16 stone, some gentle heat and hammering a punch onto the nut, but, it just wont budge!! :x any suggestions ?
cheers Eric.
p/s sudden thought is it a left handed thread by any chance???
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Re: mastiff front sprocket nut

Postby droy » Mon Nov 02, 2015 7:39 am

Right handed nut!

More heat and a longer "cheater bar" on the wrench?
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Re: mastiff front sprocket nut

Postby edfmaniac » Mon Nov 02, 2015 12:05 pm

Silly question, but did you remove or bend the locking tab out of the way?
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Re: mastiff front sprocket nut

Postby edfmaniac » Mon Nov 02, 2015 12:09 pm

If it doesn't have a locking device, I would find an impact wrench. It seems to me like they would do less damage to the transmission than using a large pry bar. I bought a cheapo electric impact from Harbor Freight and some oversized sockets that will get the job done.
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Re: mastiff front sprocket nut

Postby ericetz301 » Wed Nov 04, 2015 6:42 am

thanks, guys,
I was obviously being too gentle with it :wink: !!
I've now got myself the use of an impact driver / wrench and a 12 point socket the nut WILL come off, this time :)
cheers Eric.
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Re: mastiff front sprocket nut

Postby DAVID THOMPSON » Wed Nov 04, 2015 5:43 pm

if it does not
that impact will put a twist in your knickers :smt023
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