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Circlip made from safety pin?

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karthead
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PostPosted: 11:51 - 02 May 2012    Post subject: Circlip made from safety pin? Reply with quote

Hi all!
Just curious, one day i lost a circlip from a piston (luckily i found it again!) and i thought about making one from a safety pin. I mean, that stuff is similar width and if you could get it the right shape, it'd work, wouldnt it? Or should you just use a proper circlip?
Just wondering Laughing
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nowhere.elysium
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PostPosted: 12:45 - 02 May 2012    Post subject: Re: Circlip made from safety pin? Reply with quote

andresoccer10 wrote:
Hi all!
Just curious, one day i lost a circlip from a piston (luckily i found it again!) and i thought about making one from a safety pin. I mean, that stuff is similar width and if you could get it the right shape, it'd work, wouldnt it? Or should you just use a proper circlip?
Just wondering Laughing


Are you serious?
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Dracon
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PostPosted: 12:46 - 02 May 2012    Post subject: Reply with quote

Yeah do it, it's not a crucial part of anything. Thumbs Up
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Raffles
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PostPosted: 14:21 - 02 May 2012    Post subject: Reply with quote

It might be OK so long as you use some Blu-Tak or somefink similar to secure it in place, probably.
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andym
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PostPosted: 14:34 - 02 May 2012    Post subject: Reply with quote

Wouldn't Loctite be a bit better than blu tack? Laughing
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DrDonnyBrago
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PostPosted: 15:08 - 02 May 2012    Post subject: Reply with quote

andym wrote:
Wouldn't Loctite be a bit better than blu tack? Laughing



Neither loctite or blue tac has a thing on old chewing gum, the older the better. Look under the tables at pubs and scrape it off the pavement.
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chris-red
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PostPosted: 15:49 - 02 May 2012    Post subject: Reply with quote

DonnyBrago wrote:
andym wrote:
Wouldn't Loctite be a bit better than blu tack? Laughing



Neither loctite or blue tac has a thing on old chewing gum, the older the better. Look under the tables at pubs and scrape it off the pavement.


Pah, what you really want is leftover wetabix, once it has dried ain't nothing removing that.
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Dracon
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PostPosted: 16:50 - 02 May 2012    Post subject: Reply with quote

chris-red wrote:
Pah, what you really want is leftover wetabix, once it has dried ain't nothing removing that.


I swear you could build a house with this stuff, it sure as hell doesn't want to come off bowls!
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andym
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PostPosted: 16:55 - 02 May 2012    Post subject: Reply with quote

Dracon wrote:
chris-red wrote:
Pah, what you really want is leftover wetabix, once it has dried ain't nothing removing that.


I swear you could build a house with this stuff, it sure as hell doesn't want to come off bowls!


You're not eating it right if there's any left on the bowls... but I've found a few minutes with an angle grinder will slowly work through little bits.

I get the feeling you guys are taking the piss now... what he REALLY needs on there is a cable tie (tightened with a hammer which has been sprayed with WD40)...
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m1tch
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PostPosted: 17:16 - 02 May 2012    Post subject: Reply with quote

You have to be careful to make sure that its not overtorqued with the hammer though, need to check the workshop manual on that, might also be worth ensuring it stays there with gaffa tape
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The Shaggy D.A.
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PostPosted: 17:30 - 02 May 2012    Post subject: Reply with quote

Dracon wrote:
chris-red wrote:
Pah, what you really want is leftover wetabix, once it has dried ain't nothing removing that.


I swear you could build a house with this stuff, it sure as hell doesn't want to come off bowls!


You can use moist Alpen to join bricks of Weetabix, then soak the whole lot in milk. Once it's dried you can shelter from nuclear blasts in it Smile
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MarJay
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PostPosted: 17:42 - 02 May 2012    Post subject: Re: Circlip made from safety pin? Reply with quote

andresoccer10 wrote:
Hi all!
Just curious, one day i lost a circlip from a piston (luckily i found it again!) and i thought about making one from a safety pin. I mean, that stuff is similar width and if you could get it the right shape, it'd work, wouldnt it? Or should you just use a proper circlip?
Just wondering Laughing


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Pete.
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PostPosted: 17:52 - 02 May 2012    Post subject: Re: Circlip made from safety pin? Reply with quote

andresoccer10 wrote:
Hi all!
Just curious, one day i lost a circlip from a piston (luckily i found it again!) and i thought about making one from a safety pin. I mean, that stuff is similar width and if you could get it the right shape, it'd work, wouldnt it? Or should you just use a proper circlip?
Just wondering Laughing


It would probably come out. Even slightly stretched circlips can come out which is why you are told to always use new though I've always re-used them without any problems.

Loctite wouldn't work either whoever suggested that because the gudgeon pin has to turn in use.

It's either a proper circlip or a teflon button.
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lefty
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PostPosted: 18:02 - 02 May 2012    Post subject: Re: Circlip made from safety pin? Reply with quote

Pete. wrote:
It's either a proper circlip or a teflon button.


Would a button off me grandma's cardigan work?
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andym
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PostPosted: 18:55 - 02 May 2012    Post subject: Re: Circlip made from safety pin? Reply with quote

Pete. wrote:
Loctite wouldn't work either whoever suggested that because the gudgeon pin has to turn in use.


I'd never have known that, thanks for the heads up Pete...

I guess all sarcasm really is lost in text Confused
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karthead
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PostPosted: 22:37 - 02 May 2012    Post subject: Reply with quote

Thanks all,
Well i think if i loose a circlip ill just get a new one. I especially thank those of you who didnt post sarcastic responses and were actually open to ideas....
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Derivative
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PostPosted: 00:26 - 03 May 2012    Post subject: Reply with quote

Do you have a circlip to hand?

An old trick I learned from a mechanic once was to mould one using chewing gum or blu tack.

If you press the circlip into the gum and freeze it, you can then remove the circlip and you will have a mould to use for future circlips.

Jelly would be an apt choice.
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DrDonnyBrago
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PostPosted: 07:45 - 03 May 2012    Post subject: Reply with quote

andresoccer10 wrote:
I especially thank those of you who... were actually open to ideas..


Laughing Laughing Laughing

Ideas of using a badly bent paper clip to replace a critical part of an internal combustion engine...


You might want to stop having ideas.
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nowhere.elysium
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PostPosted: 08:27 - 03 May 2012    Post subject: Reply with quote

andresoccer10 wrote:
Thanks all,
Well i think if i loose a circlip ill just get a new one. I especially thank those of you who didnt post sarcastic responses and were actually open to ideas....


Your indignation amuses me.

Replacing a critical circlip with a bent safety pin? Darwin's probably spinning fast enough in his grave to be able to power a small city.
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janner_10
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PostPosted: 08:33 - 03 May 2012    Post subject: Reply with quote

The seat belt on my car is a bit frayed and I don't have a spare - could I make one out of an old belt and some string?
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karthead
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PostPosted: 10:43 - 03 May 2012    Post subject: Reply with quote

Aren't you guys getting it? I DIDNT PUT A BLOODY SAFETY PIN IN THE DAMN ENGINE! I was just simply asking if the idea (with possibly other modifications as other people mentioned) could work. I'm smart enough to know if the plan goes wrong the clip can slip out and get caught in a transfer port, causing a catastrophic problem. Thats why i didnt do it in the first place. And if you guys think that you can somehow intimidate me with smart ass remarks over a forum (particularly to a 15 year old) then i think you have issues. I'm 15 for gods sake, cant you at least realize that at a young age, i'm probably doing things that a lot of you wouldn't have even thought about in your time? I'm not as experienced as you all, all i want is an answer and an explanation.
Thankyou.
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nowhere.elysium
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PostPosted: 12:33 - 03 May 2012    Post subject: Reply with quote

andresoccer10 wrote:
Peri-pubescent rage


I was never under the impression that you'd actually done it; I was voicing my opinions of the idea itself.

OK - let's try and go through this in a civilised manner. For starters, you're on BCF, a forum which is known for acidic humour. Secondly, quite aside from the whole 'slipping out' argument (which is valid), you've got the fact that you'd hypothetically be replacing a machine-manufactured (i.e. high-precision) piece of metal with a hand-bent length of what's effectively wire.

Aside from being a different cross-sectional profile (so it wouldn't even fit properly), they're also different grades of metal, and have been subject to different treatments. I'm not a metallurgist, but there are some members of BCF who are, so they'd be able to give a more detailed reason as to the whys and wherefores.

More to the point, it's inferred that it's the circlip that retains the gudgeon pin - if that fails, you've got bigger concerns than getting a bit of safety pin in a port. Specifically, a lunched piston, bent conrod - lots of shrapnel being thrown about inside the engine, causing the thing to have a terminal seizure.

We've all had silly ideas at the age of fifteen, and I'd imagine that we all got slapped down because of them. I know that I certainly did, and if my teenage daughter came out with something as silly as the safety pin suggestion, I'd devote some serious energy to mocking her for it, too. More so than I have done here, at least.

As a rule of thumb; until you're well-practiced at bodgery, stick to the principle that if it's structural, MOT-able, or attached to an important internal, it's not bodgeable. When you've got some experience under your belt, these strictures can obviously be relaxed, as is appropriate.
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Derivative
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PostPosted: 12:36 - 03 May 2012    Post subject: Reply with quote

andresoccer10 wrote:
I'm 15 for gods sake, cant you at least realize that at a young age, i'm probably doing things that a lot of you wouldn't have even thought about in your time? I'm not as experienced as you all, all i want is an answer and an explanation.
Thankyou.


Woe is little old me.
I couldn't afford a bike at 15. Lucky you.
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