Question Tubing front axle - Printable Version

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Tubing front axle - StuBeeDoo - 14th-Feb-24

My Fly kit Porsche 911 has a very floppy front axle.  I haven't actually measured the play in it, but it must be several millimetres.  The lugs on the chassis don't have enough material to allow drilling and screwing-in grub screws to limit the up-and-down travel.  It seems to me that the only solution to the issue, on this particular car, is to glue a tube to the chassis.  This isn't something I have attempted before.

As the axle is 3/32in - or approx 2.38mm - what internal diameter tube do I need to use?  Is 2.4mm going to be too tight??

Thanks in advance,
Stuart.

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RE: Tubing front axle - Kevan - 14th-Feb-24

1/8th inch brass tube 

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RE: Tubing front axle - StuBeeDoo - 14th-Feb-24

Thank you, Kevan.  

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RE: Tubing front axle - Kevan - 14th-Feb-24

K&S brass tube is best but you can get cheaper...but stay clear of 'soft' brass tube because it bends too easily and you'll never straighten it satisfactorily.

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RE: Tubing front axle - StuBeeDoo - 14th-Feb-24

(14th-Feb-24, 01:30 PM)Kevan Wrote:  K&S brass tube

Coincidentally, that's what my local model shop sell.

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RE: Tubing front axle - Kevan - 14th-Feb-24

Happy days 

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RE: Tubing front axle - john roche - 14th-Feb-24

(14th-Feb-24, 02:23 PM)StuBeeDoo Wrote:  

(14th-Feb-24, 01:30 PM)Kevan Wrote:  K&S brass tube

Coincidentally, that's what my local model shop sell.

You're lucky to have a local model shop these days, a rare thing!

I/8" o.d tube has an i.d of 3/32

Cheers,

John

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RE: Tubing front axle - StuBeeDoo - 18th-Feb-24

Thank you all for your input, gents.  

Two cars with damaged chassis repaired today.

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RE: Tubing front axle - bowley - 3rd-Jun-24

When using brass tubing do you use bushings as well or is the tube good enough fit over axle on its own?

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RE: Tubing front axle - Kevan - 3rd-Jun-24

You don't need bushings just secure the brass tube in the chassis.

There's a thou' or two clearance for the axle to spin, just add a smear of oil on the axle before sliding it in the tube and a little gap between the wheels and end of the brass tube.

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