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Plusgas question.

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recman
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Joined: 26 Mar 2012
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PostPosted: 22:01 - 08 Jul 2018    Post subject: Plusgas question. Reply with quote
I plan on replacing the exhaust header gaskets at some point so as a precaution I'll be applying Plusgas a couple of times for a day or two before I attempt removal.
It may be a silly question but if I ride the bike after applying Plusgas, will the heat affect the purpose I'm using for or not?
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Riejufixing
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Joined: 24 Jun 2018
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PostPosted: 00:04 - 09 Jul 2018    Post subject: Reply with quote
PlusGas! Didn't know it was still available. I would expect it to boil off fast if you heat up whatever it's on. "Blend of hydrocarbon distillates and mineral oil".
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ThatDippyTwat
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PostPosted: 06:09 - 09 Jul 2018    Post subject: Reply with quote
Put it on when hot, but *after* your ride, before you put her away for the night. Give it time to actually penetrate.
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Suntan Sid
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Joined: 07 May 2009
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PostPosted: 07:24 - 09 Jul 2018    Post subject: Re: Plusgas question. Reply with quote
recman wrote:
I plan on replacing the exhaust header gaskets at some point so as a precaution I'll be applying Plusgas a couple of times for a day or two before I attempt removal.
It may be a silly question but if I ride the bike after applying Plusgas, will the heat affect the purpose I'm using for or not?


If they look particularly nasty I'd be applying it for a couple of weeks rather than a couple of days!

This is worth a watch, if you've got a spare 10 minutes:-

https://www.youtube.com/watch?v=st8dkGzJWtg
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Riejufixing
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Joined: 24 Jun 2018
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PostPosted: 11:15 - 09 Jul 2018    Post subject: Reply with quote
If you can get at the nuts you could split them. If a splitter won't go on, a small sharp chisel *supporting the nut from the other side* with a heavy piece of metal. No need to completelt split the thing, driving whichever chisel in a little will generally do the job (so will just "flattening" the nut a little, but you need bigger hits).
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Pjay
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PostPosted: 11:36 - 09 Jul 2018    Post subject: Reply with quote
I've always had good results with good old brake fluid. It definitely works.
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recman
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Joined: 26 Mar 2012
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PostPosted: 13:10 - 09 Jul 2018    Post subject: Reply with quote
Riejufixing wrote:
If you can get at the nuts you could split them. If a splitter won't go on, a small sharp chisel *supporting the nut from the other side* with a heavy piece of metal. No need to completelt split the thing, driving whichever chisel in a little will generally do the job (so will just "flattening" the nut a little, but you need bigger hits).


I've removed all sorts of nuts and bolts using a range of methods in all sorts of difficult situations as part of my job.
I've not had to use a release agent such as Plusgas on rusty materials though, which is why I asked the question.
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Itchy
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Joined: 07 Apr 2005
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PostPosted: 14:15 - 09 Jul 2018    Post subject: Reply with quote
Pjay wrote:
I've always had good results with good old brake fluid. It definitely works.


He's right:

https://www.youtube.com/watch?v=st8dkGzJWtg

Brake fluid is almost as effective as bespoke penetrating fluids.
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johnsmith222
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Joined: 26 Dec 2008
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PostPosted: 16:05 - 09 Jul 2018    Post subject: Reply with quote
Don't just spray it on there. On day 1, I would spend some time cleaning up the threads of each stud, and the nut itself with penetrating oil and a wire brush.

I would then probably go back over it again on the day of doing the job.

Might seem overkill, but the amount of time that rounded nuts have cost me in the past, it's definitely worth taking the time.
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Riejufixing
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Joined: 24 Jun 2018
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PostPosted: 22:46 - 09 Jul 2018    Post subject: Reply with quote
recman wrote:
Riejufixing wrote:
If you can get at the nuts you could split them. If a splitter won't go on, a small sharp chisel *supporting the nut from the other side* with a heavy piece of metal. No need to completelt split the thing, driving whichever chisel in a little will generally do the job (so will just "flattening" the nut a little, but you need bigger hits).


I've removed all sorts of nuts and bolts using a range of methods in all sorts of difficult situations as part of my job.
I've not had to use a release agent such as Plusgas on rusty materials though, which is why I asked the question.


Thank you for the extra information. I hope that the problem you have with your nuts is remedied soon. Good luck to you.
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Polarbear
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PostPosted: 22:51 - 09 Jul 2018    Post subject: Reply with quote
Penetrating oil on both the nut and the stud where it goes into the head. In that way you have two chances, the nut comes off or the stud comes out rather than shears. Thumbs Up

I use plus gas but the liquid rather than the spray. Not that it should make any difference.
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MCN
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Joined: 22 Jul 2015
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PostPosted: 01:33 - 10 Jul 2018    Post subject: Reply with quote
Got rusty nuts?
You need Rusty-Nuts-Pal ®


An 'Under-sized' single hex socket will help prevent the corners of the nut failing.

Imperial sizes come between metric sizes.

7/16“ is 11mm.
1/2“ is around 12-13mm (12.7 millimetres).

Or you can bite the bullet and buy a welding torch.

https://www.diy.com/departments/tools-equipment/hand-tools/blow-torches-soldering-irons-solder/DIY623196.cat

Heat the wee bastirts up cherry red and they will come off with your fingers. 😂
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