Rusty nuts

For all that relates to both Armstrong MT 500 and Harley Davidson MT 350
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Franc
Posts: 2011
Joined: Sun Mar 22, 2009 4:20 pm
Location: Forest of Dean

Re: Rusty nuts

Post by Franc » Wed Mar 25, 2020 6:57 pm

lardmarc wrote:
Tue Mar 24, 2020 6:03 pm
Exhaust studs. Nothing else seizes.
It was whilst tackling the exhaust studs that I this thought popped into my head.
I'm going to use it as a guide as to what to tackle next.
My next worry is the job return valve retaining screw.......They can be a bitch.
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Franc
Posts: 2011
Joined: Sun Mar 22, 2009 4:20 pm
Location: Forest of Dean

Re: Rusty nuts

Post by Franc » Wed Mar 25, 2020 6:59 pm

Laurence wrote:
Tue Mar 24, 2020 8:36 pm
lardmarc wrote:
Tue Mar 24, 2020 6:03 pm
Exhaust studs.
And those cross head screws that hold the cover on the front brake master cylinder.... once rusty they round off in no time
I've overcome these in the past by drilling the heads out, removing the cover, and getting molegrips on the stubs remaining.
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Franc
Posts: 2011
Joined: Sun Mar 22, 2009 4:20 pm
Location: Forest of Dean

Re: Rusty nuts

Post by Franc » Wed Mar 25, 2020 7:02 pm

MTBrown wrote:
Tue Mar 24, 2020 7:29 pm
Swinging arm spindle - if rusted on to bearing journals then an absolute nightmare to extract. Been there with a Honda but not an MT!
Steve white had an XR400 Swingarm pivot bolt sieze, took two weeks with heat, penetrating oil, diesel, and a home made not to give it constant high pressure before it finally gave up. :shock:
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MTBrown
Posts: 77
Joined: Wed Jun 05, 2019 5:33 am
Location: Normanton

Re: Rusty nuts

Post by MTBrown » Wed Mar 25, 2020 7:51 pm

Mine was an XR250 and required an angle grinder and cutting disk to cut through the hardened journals and pivot bolt in order to remove the swinging arm - total nightmare and reinforced the need to remove the spindle once a year to re-grease. Fortunately, the MT doesn't seem to suffer this problem despite the designs being very similar.
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Slowmo
Posts: 2
Joined: Sat Oct 12, 2019 1:14 pm
Location: Somerset

Re: Rusty nuts

Post by Slowmo » Fri Mar 27, 2020 5:09 pm

I’ve just (almost) finished restoring my 500 over the winter. Thanks to Beerface’s advice about using Tabasco sauce on rusted fasteners
((search ‘Tabasco’), everything became much easier. It worked for me.
Jim
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