Fabricating aluminum carb funnels

rbaselt · Post by **rbaselt** » Wed May 21, 2008 6:40 am

Can anyone recommend a shop for replication of some aluminum carb funnels for a 250cc twin? They would need to be turned from solid material, with metric threads on the carb end. I have an original as a pattern. Thanks, Randall

ggray · Post by **ggray** » Wed May 21, 2008 7:22 am

Are they straight or do they have a dog leg in them?

Do you have a pic?

Gary

rbaselt · Post by **rbaselt** » Wed May 21, 2008 7:28 am

Yes, they are straight, but bell-shaped. Here's a photo:

ggray · Post by **ggray** » Wed May 21, 2008 11:04 am

Would be better suited to a CNC lathe.

I only have manuals.

Most any job shop with CNC equipment would be able to reverse engineer them for you with the sample.

My suggestion for material would be 7076-T73 bar to start with. It is much stronger than 6061-T6.

Good luck,

Gary

3BeanCrispy · Post by **3BeanCrispy** » Fri May 23, 2008 12:24 pm

i have 6 cnc lathes and a cnc machining center at my disposal and would be glad to pump out a couple of these if you like. nothing better than straying from the normal product line we make and manufacturing sidejob parts. I would need a sample or a decent sketch/blueprint to work from. Hard to tell the scale of the part from the pic ... looks like it could be 1/2" big or 5" big. i'd guess they're towards the smaller end.
where abouts are you located ?

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