paulbeyer
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| posted on 2/3/11 at 12:49 PM |
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Drill Guides
Is there anyone out there with a lathe that could knock me up a couple of little drill guides please?
I have snapped two studs off of my exhaust manifold on my old Saab and need a couple of items turned to act as drill bit guides for a 3mm and 5mm
cobalt drill bit as shown below. (I am going to need one with a 3.1mm dia. hole and the other with a 5.1mm dia. hole).
If someone can help I can paypal funds or send a cheque, whatever is best to cover your time, materials and p&p to Bristol.
Thanks.
Paul
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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Mr Whippy
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| posted on 2/3/11 at 01:08 PM |
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If you file the end of the stud totally flat and then use a centre punch to mark the hmm centre you should have no difficulty getting a 5mm drill
right down the middle of the stud. Keep gradually going up in size in 1mm steps till you are just under the thread internal diameter. Then you can
clean out the old thread from the hole with a small nail or punch. With luck, WD40 and some blowtorch heat you should be able to clean out the hole
without the need for retapping.
Just take your time
Fame is when your old car is plastered all over the internet
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designer
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| posted on 2/3/11 at 01:18 PM |
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That's what extractors are for.
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Mr Whippy
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| posted on 2/3/11 at 01:36 PM |
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quote:
Originally posted by designer
That's what extractors are for.
yeah but you still need to drill a hole for the extractor and tbh they are more likey to just snap leaving a very hard bit of metal in there that you
can't even drill out 
If there is about 10mm or more left of the stud still sticking out then you can heat it till glowing and leave it like that for about half an hour,
hopefully that will break down the corrosion and it will come free
[Edited on 2/3/11 by Mr Whippy]
Fame is when your old car is plastered all over the internet
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paulbeyer
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| posted on 2/3/11 at 03:58 PM |
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The engine in a Saab is tilted at nearly 45 degrees like half of a V8 and the studs are not visible. The only way to access them is with a right
angled drill attachment. These guides help you to locate the stud centre accurately without having to remove the head from the engine.
7 out of 10 people suffer with hemorrhoids. Does that mean the other 3 enjoy them?
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