Four Ton Auto Specialties Jack and Handle

[m606paz]

Hi Jacques, thank you for your help.

Today I started to reproduce the missing tube. Take a tube of greater diameter and with a longitudinal cut reduce the diameter to the necessary measure. Then a bit of lathe to lower the tube to the necessary diameter since it was cylinder with blows and there was not a perfect circumference.

Next weekend I will continue with the restoration. It remains to have some guides so that the piece does not rotate, and the upper seat.

[m606paz]

Another post about this type of Jack
http://www.mapleleafup.net/forums/sh...d.php?p=268706
http://www.mapleleafup.net/forums/sh...d.php?p=250490

[m606paz]

I have some questions to know how to advance in the construction of the saddle and the ring under the saddle.
Is the ring fixed to the tube that is under it or does it also rotate with the saddle?
If the ring is fixed, is it welded to the tube?
Thanks in advance

[Jacques Reed]

Hi Mariano,

The saddle rotates in the upper tube. The tube does not turn.

There is a large round head rivet that holds the saddle to the tube. it is free to rotate also in the tube and the saddle. Without pulling mine apart I am not sure how the rivet is attached to the upper tube. The saddle rotates in that collar at the top of the tube. That is the ring you refer to in photo. It is part of the upper tube.

Again, I am only referring to the smaller jack but in the photos they seem the same at the saddle area for both size jacks.

Hope this helps.

Cheers,

[m606paz]

Thank you very much for your help Jacques!
Now I know how this whole system works and I will try to reproduce it as accurately as possible.

[Jacques Reed]

Hi Mariano,

Glad to be of some help. Here are a couple more close ups of the saddle on my smaller jack which may aid fabrication.

As a matter of interest, on the smaller jack the upper tube is 1-11/16" in diameter, and at the collar it is 1-15/16" in diameter. Wonder how that compares to the 4 ton jack?

Cheers,

[m606paz]

Hi Jacques
Great help with this close ups pics!!

Next Friday I will return to the workshop and I will be able to start the reproduction

Thank you very much!