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Welcome to my Cobra Replica build blog.
Please contact me if you would like to know more detail as i progress."CR3514@live.com.au"
Regards
Dave

Friday, November 13, 2015

Quick Jacks & Mounts

Made up a small jig that bolts to the quick jack chassis mounts which I can set the height to get leveled to the body and make sure the holes are 2.25" apart to match the Quick Jacks I purchased from Finishline Accessories.

The jig has a plate with 2 holes 2.25" apart.
A bolt fits through one of the mount holes in the chassis bracket.

I drilled a 1/4" (6.35 mm) hole through another bolt which then goes through the other chassis bracket hole and onto that I screwed a bit of aluminum solid with a 1/4" hole all the way through it and drilled and tapped one end to suit the bolt.

I used 1/4" holes because that is the pilot drill size on my hole saw kit.


I then bought a long 1/4" drill bit and drilled through the tube using it as a guide and through the body.

While the jig is still in place, I then used the hole saw  to cut the quick jack hole through the body from the outside using the tube centre hole as the guide.


Using the hole saw on slow speed created a very nice un-chipped hole.

After drilling the hole, swap the jig around for the next hole.
Unbolt the tube, put through a bolt and nut to lock the jig in place, then undo the original mounting bolt and replace it with the tube and bolt assembly for the second hole.



Same deal with the front of the car.



Slow and steady as the body is on a sharp angle at the point.











The hole saw is controlled by the pilot drill being inside the guide tube behind the body.



































The quick jack tubes are made from 3/4" steel solid which I then drilled a 10mm hole through.

Through this goes a 10mm stainless threaded rod cut to suit.

Drilling the quick jack tubes with a long 10mm drill bit.










So... whats it all look like.





I also purchased Body Grommets from Finishline.
I will definitely fit them to the rear as the mount holes go through to the boot, but I'm undecided on the front, I like the look with out the grommets.



The quick jacks kit comes with 2 large and 2 small lift brackets. (the black bits)

Lots of conjecture about which is which for front and rear, but assuming the lifting dolly has a fixed length to it, I've mounted the large on the back so that the lift radius points are similar heights off the ground to the front.