Rusty screw/nut - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 13 (permalink) Old 05-13-2019, 02:27 PM Thread Starter
Minitwins
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Rusty screw/nut

Hi all! Any of you guys know if I can easily change the rusty screw and nut in the picture? Left side of the bike. Haven't tried to unscrew it yet. Thnx!
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post #2 of 13 (permalink) Old 05-13-2019, 02:55 PM
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Nut should come off - give a good soak overnight in penetrating oil first

Stud is a 50/50 - you might be just as likely to break it and then you have a MUCH bigger job on your hands - I would leave that alone unless you REALLY need to remove
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post #3 of 13 (permalink) Old 05-13-2019, 03:26 PM Thread Starter
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Thnx for the answer! I will replace the nut.
Why is the stud more difficult?
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post #4 of 13 (permalink) Old 05-14-2019, 02:45 AM
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It's a steel stud in aluminum head
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post #5 of 13 (permalink) Old 05-14-2019, 11:40 AM
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it should come off as Decosse mentioned with the penetrating oil ... however there is 5 more of those nuts most likely in the same or worst condition. i would think the reason you want to replace is because it looks like dog crap. however the one you showed its probably the easiest one to remove and reinstall ... for the rest of them you will need to move the radiator a bit to get a good grip on the rest of them. (2) per exhaust ports x 3. my recommendation is to tackle this job when time comes around to do other maintenance. if you get lucky enough and the studs are in good condition and stay in place you will most likely not need to move the header and new copper gaskets will not be necessary, however if you need to move the header out of place you will need (3) copper gaskets just to make sure the exhaust system wont leak at the mating surface. believe me you don't want to install everything fill your radiator and find out you now have a leak. f*&K. if you are due for a coolant change, it be the perfect timing for this job.

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post #6 of 13 (permalink) Old 05-14-2019, 04:38 PM
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I would recommend using heat... Mine were in much worse condition but I got the studs out and replaced them after soaking them and using a blowtorch.

Much easier if you drain and remove the radiator... You should definitely check the others don't look like this...

https://www.triumphrat.net/biker-hang-out/945692-check-out-my-nuts.html
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post #7 of 13 (permalink) Old 05-15-2019, 05:05 AM Thread Starter
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All, thank you for the detailed answers. Indeed something to do at the end of the season (was planning to replace the coolant anyway). In the meantime I've fund a number of other threads indicating the same problem. Do you know if there is a stainless steel replacement such that this does not happen again?

edit;
Something like this seems to be a good option; https://www.ebay.ie/itm/Triumph-Exha...item1ccfb19a79

Last edited by H_S3; 05-15-2019 at 05:21 AM.
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post #8 of 13 (permalink) Old 05-15-2019, 08:14 AM
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post #9 of 13 (permalink) Old 05-18-2019, 08:16 AM
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Couldnt' find this before, but have now. Mashers spot on. Worth a look for the explanation

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post #10 of 13 (permalink) Old 05-20-2019, 09:20 PM
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If you do decide to replace the nut only, use anti seize on the stud before you screw the new nut on. This will help you achieve the required torque and make it easier to remove the nut next time

John



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