servicing my webers - problem #1..

PostPost by: Johnfm » Sun Sep 29, 2013 10:31 am

So, this screw doesn't want to budge and don't want to damage it further...


What do I do to remove it without causing further damage?

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PostPost by: Pistacchio sprint 72 » Sun Sep 29, 2013 1:25 pm

Wd40 ? Let it the necessary time to soak in the thread...

A light hit with a hammer?
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PostPost by: Johnfm » Sun Sep 29, 2013 1:44 pm

Going to let penetrating fluid do its job overnight and see if that will budge it.
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PostPost by: robertverhey » Sun Sep 29, 2013 1:51 pm

A good close fitting screwdriver essential for these brass babies. And maybe a sharp but restrained tap on the screedriver handle to break any seal in the threads.

Once the screws are out you can grapple with the plate iteslf! Hard to get purchase around the edges

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PostPost by: AHM » Sun Sep 29, 2013 2:23 pm

and after all the effort, you realise that it is just a cover and you could have left it alone.
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PostPost by: Johnfm » Sun Sep 29, 2013 2:58 pm

AHM wrote:and after all the effort, you realise that it is just a cover and you could have left it alone.


Pretty sure I need to remove this in order to pull out the throttle spindle and replace the old spindle bearings.
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PostPost by: RichardHawkins » Sun Sep 29, 2013 8:42 pm

John,

You do need to remove that cover to replace bearings.

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PostPost by: rgh0 » Mon Sep 30, 2013 12:21 am

I would try the following

1. penetrating oil soak of your choice
2. heat and chill cycle by warming the casing with a hot air gun and then a cold spray on the screw
3. impact screw driver ( you hit it on the end and it drives the blade in as it twists it slightly)
4. deepen the slot with a dremel and thin cutting disc
5. grind a screwdriver blade to match the depended slot
6. another go at 1,2,3
7. drill it out down the centre, more heat and chill cycles into the drilled hole and then use an extractor
8. keep drilling the hole bigger until the screw collapses

eventually they all come out

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PostPost by: nomad » Mon Sep 30, 2013 12:11 pm

I second Rohan's "impact screw driver". Wonderous little tool but on that screw you will have to be gentle.

In fact I second all of Rohan's suggestion's!

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PostPost by: Johnfm » Mon Oct 28, 2013 11:51 pm

Tapped it out with a small punch.

Screw head is knackered, but it is out.
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PostPost by: MickG » Tue Oct 29, 2013 1:33 pm

More success :D

Looks like you could be on a roll John

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PostPost by: Galwaylotus » Tue Oct 29, 2013 2:31 pm

Are you sure the spindle bearings are knackered? Passini says it's best to leave the spindles alone unless absolutely necessary.
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PostPost by: Johnfm » Tue Oct 29, 2013 9:16 pm

I am leaving the bearings.

They are ok and I cannot get the spindle to budge a micron.

So ordering some suitable grease and replacing them.
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