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Lotus Europa Forums => Garage => Topic started by: TurboFource on Monday,January 25, 2021, 01:38:29 PM

Title: No beads in tubing?
Post by: TurboFource on Monday,January 25, 2021, 01:38:29 PM
I was just curious why none of the tubing I have taken apart so far on the Europa has a bead formed into it
to prevent the hose etc. from coming off? It does make disassembly easier...... ::) but the point of having them
is to prevent the hose from coming off easily....
Title: Re: No beads in tubing?
Post by: BDA on Monday,January 25, 2021, 01:53:15 PM
The tubes I'm thinking of are the transfer tubes and the heater tubes. Are there others?

The transfer tubes fit pretty snugly in the grommets in the frame so having a bead would make assembling that much harder.

I don't know why the heater tubes weren't beaded.
Title: Re: No beads in tubing?
Post by: jbcollier on Monday,January 25, 2021, 03:08:00 PM
BDA is right, if you bead the main coolant tube ends, you can't get them through the grommets.  I just put a three or four rivets at the end of each tube after installing.  Works the same as a beaded end but you can drill them out if you have to remove the tubes.  All the other tubes I made up myself and beaded their ends.
Title: Re: No beads in tubing?
Post by: GavinT on Monday,January 25, 2021, 10:10:09 PM
How did you form the beads, JB?

There are a few rather spendy gadgets around but I'd like to avoid those considering the small number of beads needed.
There's also the range of sizes to consider - 1/2 inch for the heater tubes and 1-1/4 inch for the coolant tubes.
Title: Re: No beads in tubing?
Post by: Dilkris on Tuesday,January 26, 2021, 01:59:47 AM
I just put a three or four rivets at the end of each tube after installing.  Works the same as a beaded end but you can drill them out if you have to remove the tubes.

That's clever John - where did you learn that from? 
Title: Re: No beads in tubing?
Post by: jbcollier on Tuesday,January 26, 2021, 06:38:57 AM
I had the beading tools already from when I worked.  They are expensive so look for a shop that has them.  An aircraft, race-prep, or good restoration shop should have them.

It is clever.  Not my idea though.  Read it somewhere.
Title: Re: No beads in tubing?
Post by: TurboFource on Tuesday,January 26, 2021, 12:21:02 PM
I agree, it's clever and simple!