DaveFJ
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| posted on 19/6/07 at 11:26 AM |
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Ally cones for manifold
Any ideas where i can get hold of some suitable ally 'cones' to make up my inlet manifold??.
I have tried making them myself using lumiweld but the results are somewhat less than inspiring!
Basically I need 4 cones made to roughly the following scribble..... (apologies for crap diagram!)
 
cones
Dave
"In Support of Help the Heroes" - Always
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Ketchup
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| posted on 19/6/07 at 12:16 PM |
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Hi, i can recommend a guy in colchester that i use, really nice bloke and he has made some interesting stuff, wouldnt take him long to make what you
need i wouldnt have thought
http://www.cober.co.uk
ask for jim
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matt_claydon
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| posted on 19/6/07 at 05:44 PM |
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Are those inside diameters or outside?
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DaveFJ
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| posted on 20/6/07 at 07:49 AM |
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outside
Dave
"In Support of Help the Heroes" - Always
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MikeRJ
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| posted on 20/6/07 at 08:47 PM |
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I suspect you'll need something a bit thicker than 1mm if you want it to support a set of carbs or throttle bodies, and want to weld it to a
thick manifold flange.
It would probably not cost too much to get them turned up out of thick wall alloy tube (e.g. alloy scaffold pole).
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Peteff
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| posted on 20/6/07 at 10:31 PM |
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It would probably not cost too much to get them turned up out of thick wall alloy tube
38mm i.d. to 46mm i.d. means finding a 48mm o.d. tube with a wall thickness of 10mm or thereabouts, you'd have to machine that from a blank bar
I think and it sounds very expensive.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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DaveFJ
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| posted on 21/6/07 at 08:38 AM |
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yup - point taken - 1mm thick is probably a bit thin....
the important dims are indeed the Internal ones and as stated - 38mm/46mm
I have some 50mm O/D tube which has about 1.5mm thick walls, and tried doing a cut/shut job with that using that Lumiweld type stuff i got from
Stoneleigh - but the result was crap and the seam just seperated under fairly low pressure 
Dave
"In Support of Help the Heroes" - Always
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907
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| posted on 21/6/07 at 08:55 PM |
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They could be pressed from 40mm o/d pipe.
(Turn suitably shaped former and mount on a hydraulic jack)
Paul G
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DaveFJ
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| posted on 22/6/07 at 07:10 AM |
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Interesting thought Paul....
Dave
"In Support of Help the Heroes" - Always
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40inches
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| posted on 22/6/07 at 08:19 AM |
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E-mail Allyfab http://www.allyfab.co.uk/contact.php
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907
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| posted on 22/6/07 at 04:17 PM |
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quote:
Originally posted by DaveFJ
Interesting thought Paul....
I pressed my exhaust manifold outlets from 1.6mm wall stainless tube.
The oval is 2" x 1"
It's amazing what a 10 tonne jack will do. 
Atb
Paul G
 
Rescued attachment Exhaust-outlet-s.jpg
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