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-   -   Cooker control knob - quick question about tightening up (https://www.diybanter.com/uk-diy/594707-cooker-control-knob-quick-question-about-tightening-up.html)

David August 9th 17 06:51 PM

Cooker control knob - quick question about tightening up
 
Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on the
side of the knob goes just past where it should be (in whichever direction
it is travelling).

So ideally I would like to do something which will make the fit a little
more snug without damaging the new knob or preventing me removing it later.

Apart from cling film over the shaft, any other suggestions?

Cheers



Dave R

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Harry Bloomfield[_3_] August 9th 17 07:10 PM

Cooker control knob - quick question about tightening up
 
David pretended :
Apart from cling film over the shaft, any other suggestions?


Make sure there is no gease in the new knobs socket, grease the shaft,
then fill the socket with slow setting proper Araldite. Leave to set up
properly position and it should remain removable, due to the grease.

Dave W[_2_] August 9th 17 07:56 PM

Cooker control knob - quick question about tightening up
 

"David" wrote in message
...
Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on the
side of the knob goes just past where it should be (in whichever direction
it is travelling).

So ideally I would like to do something which will make the fit a little
more snug without damaging the new knob or preventing me removing it
later.

Apart from cling film over the shaft, any other suggestions?

Cheers



Dave R


What sort of shaft? Is it cylindrical with a flat and the knob has a
D-shaped socket? If so you could just insert a shim of some sort on the flat
part.
--
Dave W



[email protected] August 9th 17 09:17 PM

Cooker control knob - quick question about tightening up
 
On Wednesday, 9 August 2017 19:10:54 UTC+1, Harry Bloomfield wrote:
David pretended :
Apart from cling film over the shaft, any other suggestions?


Make sure there is no gease in the new knobs socket, grease the shaft,
then fill the socket with slow setting proper Araldite. Leave to set up
properly position and it should remain removable, due to the grease.


Yes, put glue on your knob. But certainly don't fill the hole, that'll be far too much and it might never move again. I'd put polythene sheet over the shaft first


NT

Jim August 9th 17 11:01 PM

Cooker control knob - quick question about tightening up
 
David Wrote in message:
Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on the
side of the knob goes just past where it should be (in whichever direction
it is travelling).

So ideally I would like to do something which will make the fit a little
more snug without damaging the new knob or preventing me removing it later.

Apart from cling film over the shaft, any other suggestions?

Cheers



Dave R


Fashion a "press fit" shim from polymorph.

(See my thread on here regarding a 1/4 turn shower control valve
replacement)

Polymorph is on eBay /amazon et al....

--
Jim K


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Davey August 10th 17 12:54 AM

Cooker control knob - quick question about tightening up
 
On Wed, 9 Aug 2017 22:44:44 +0100 (GMT+01:00)
jim k wrote:

Polymorph is on eBay /amazon et al....


Wasn't that the title of a Red Dwarf episode?

--
Davey.

Graeme[_7_] August 10th 17 06:54 AM

Cooker control knob - quick question about tightening up
 
In message , David
writes

So ideally I would like to do something which will make the fit a little
more snug without damaging the new knob or preventing me removing it later.


Could you create a burr on the shaft? Probably difficult if the shaft
is still attached to the cooker.

Loctite make something that is designed to stick, but not be completely
immovable.
--
Graeme

Brian Gaff August 10th 17 08:31 AM

Cooker control knob - quick question about tightening up
 
Is it one of the knurled kind or the flat on the spindle kind?
One has to be very careful with tightening the know as they tend to crack
eventually due to the stresses, as you found.
Not clingfilm as its too soft, what about some ptfe tape?
Brian

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"David" wrote in message
...
Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on the
side of the knob goes just past where it should be (in whichever direction
it is travelling).

So ideally I would like to do something which will make the fit a little
more snug without damaging the new knob or preventing me removing it
later.

Apart from cling film over the shaft, any other suggestions?

Cheers



Dave R

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Brian Gaff August 10th 17 08:32 AM

Cooker control knob - quick question about tightening up
 
Ah or maybe not..:-)
Brian

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"Harry Bloomfield" wrote in message
...
David pretended :
Apart from cling film over the shaft, any other suggestions?


Make sure there is no gease in the new knobs socket, grease the shaft,
then fill the socket with slow setting proper Araldite. Leave to set up
properly position and it should remain removable, due to the grease.




[email protected] August 10th 17 11:12 AM

Cooker control knob - quick question about tightening up
 
On Wednesday, 9 August 2017 21:17:48 UTC+1, tabby wrote:
On Wednesday, 9 August 2017 19:10:54 UTC+1, Harry Bloomfield wrote:
David pretended :
Apart from cling film over the shaft, any other suggestions?


Make sure there is no gease in the new knobs socket, grease the shaft,
then fill the socket with slow setting proper Araldite. Leave to set up
properly position and it should remain removable, due to the grease.


Yes, put glue on your knob. But certainly don't fill the hole, that'll be far too much and it might never move again. I'd put polythene sheet over the shaft first


NT


just lining it with thin card sometimes works.


NT

David August 10th 17 05:31 PM

Cooker control knob - quick question about tightening up
 
On Wed, 09 Aug 2017 19:56:43 +0100, Dave W wrote:

"David" wrote in message
...
Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on
the side of the knob goes just past where it should be (in whichever
direction it is travelling).

So ideally I would like to do something which will make the fit a
little more snug without damaging the new knob or preventing me
removing it later.

Apart from cling film over the shaft, any other suggestions?

Cheers



Dave R


What sort of shaft? Is it cylindrical with a flat and the knob has a
D-shaped socket? If so you could just insert a shim of some sort on the
flat part.


Yes, round profile with a flat.

Hmmm...if the fit is loose all round I'm trying to visualise what would
happen long term.
The contact between the knob and the shaft would be the flat and the top
of the cylinder.
Not sure if that would give enough play for it to slowly deform.
Will give it further thought.

Thanks


Dave R



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Davey August 10th 17 07:14 PM

Cooker control knob - quick question about tightening up
 
On Wed, 9 Aug 2017 19:56:43 +0100
"Dave W" wrote:

"David" wrote in message
...
Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark
on the side of the knob goes just past where it should be (in
whichever direction it is travelling).

So ideally I would like to do something which will make the fit a
little more snug without damaging the new knob or preventing me
removing it later.

Apart from cling film over the shaft, any other suggestions?

Cheers



Dave R


What sort of shaft? Is it cylindrical with a flat and the knob has a
D-shaped socket? If so you could just insert a shim of some sort on
the flat part.


I once repaired one like that with a small tie-wrap. The tighter you
can pull it before cutting off the excess, the better.

--
Davey.

David August 11th 17 02:55 PM

Cooker control knob - quick question about tightening up
 
On Wed, 09 Aug 2017 17:51:48 +0000, David wrote:

Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on
the side of the knob goes just past where it should be (in whichever
direction it is travelling).

So ideally I would like to do something which will make the fit a little
more snug without damaging the new knob or preventing me removing it
later.

Apart from cling film over the shaft, any other suggestions?


I do still have the old knob with the split shaft.

It looks possible to DIY a fix with glue down the plastic bit then
something to crimp it tight such as a couple of small cable ties.

I went for the replacement knob as the easy option (!) but it is now
looking as if a repair might be at least as good.

Any recommendations for a good glue to do this?

ISTR Araldite was good but needed baking in an oven.


Whatever adhesive, it needs to allow me a little fumble time to get a
couple of small cable ties in place.

Or perhaps a very small jubilee clip?

Diameter of the shaft is about 12mm.

Cheers


Dave R


--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

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David August 11th 17 02:59 PM

Cooker control knob - quick question about tightening up
 
On Fri, 11 Aug 2017 13:55:02 +0000, David wrote:

On Wed, 09 Aug 2017 17:51:48 +0000, David wrote:

Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on
the side of the knob goes just past where it should be (in whichever
direction it is travelling).

So ideally I would like to do something which will make the fit a
little more snug without damaging the new knob or preventing me
removing it later.

Apart from cling film over the shaft, any other suggestions?


I do still have the old knob with the split shaft.

It looks possible to DIY a fix with glue down the plastic bit then
something to crimp it tight such as a couple of small cable ties.

I went for the replacement knob as the easy option (!) but it is now
looking as if a repair might be at least as good.

Any recommendations for a good glue to do this?

ISTR Araldite was good but needed baking in an oven.


Whatever adhesive, it needs to allow me a little fumble time to get a
couple of small cable ties in place.

Or perhaps a very small jubilee clip?

Diameter of the shaft is about 12mm.



Forgot to add that the main issue with a jubilee clip would be getting
something onto the nut to turn it as it would be inside the knob.

Past experience suggests that screwdrivers inserted into the side of the
screw head aren't that good.

If I could get one with a head that also took a spanner that might help.

My visualisation circuit keeps blowing a fuse.

Cheers


Dave R





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Bob Eager[_5_] August 11th 17 03:48 PM

Cooker control knob - quick question about tightening up
 
On Fri, 11 Aug 2017 13:59:02 +0000, David wrote:

If I could get one with a head that also took a spanner that might help.


The smallest that Jubilee do is this; note the bolt head:

http://www.jubileeclips.co.uk/produc...junior-ms-9mm/



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[email protected] August 11th 17 04:29 PM

Cooker control knob - quick question about tightening up
 
On Friday, 11 August 2017 14:59:05 UTC+1, David WE Roberts (Google) wrote:
On Fri, 11 Aug 2017 13:55:02 +0000, David wrote:

On Wed, 09 Aug 2017 17:51:48 +0000, David wrote:

Five year old Lamona electric oven

One of the control knobs has split along the shaft so won't turn the
control.

I ordered a replacement and it turns out to be one digit higher part
number because the old one is obsolete.
It isn't a tight fit and so although it turns the control the mark on
the side of the knob goes just past where it should be (in whichever
direction it is travelling).

So ideally I would like to do something which will make the fit a
little more snug without damaging the new knob or preventing me
removing it later.

Apart from cling film over the shaft, any other suggestions?


I do still have the old knob with the split shaft.

It looks possible to DIY a fix with glue down the plastic bit then
something to crimp it tight such as a couple of small cable ties.

I went for the replacement knob as the easy option (!) but it is now
looking as if a repair might be at least as good.

Any recommendations for a good glue to do this?

ISTR Araldite was good but needed baking in an oven.


Whatever adhesive, it needs to allow me a little fumble time to get a
couple of small cable ties in place.

Or perhaps a very small jubilee clip?

Diameter of the shaft is about 12mm.



Forgot to add that the main issue with a jubilee clip would be getting
something onto the nut to turn it as it would be inside the knob.

Past experience suggests that screwdrivers inserted into the side of the
screw head aren't that good.

If I could get one with a head that also took a spanner that might help.

My visualisation circuit keeps blowing a fuse.

Cheers


Dave R


Wrap wire round the central hollow & knot it, then add glue. There isn't normally room for a jubilee.


NT


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