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Cobra & GT40 Halibrand Spinners -old
KIT. YOU WILL ONLY NEED A BREAKER BAR OR A TORQUE WRENCH.
The Cobra and GT40 tool come as an Aluminum CNC milled tool, smooth finished, wrapped in black leather to protect any metal to metal contact, a six point, CR-MO 46 mm impact socket, a wheel chock to keep the wheel from spinning on the floor, and a tool storage bag. The tool is engraved with UNDO right and left directional arrows.
The normal recommended way to remove a wheel is to use a lead hammer to loosen the spinner while the car is still on the floor. Jack the car up, remove the spinner and wheel, replace the wheel then figure tight the spinner, let the weight of the car back down and use a lead hammer to tighten. Jaguar guys say NO, you need to roll the car a short distance and re-tighten with a hammer for a well seated spinner to the wheel.
The benefits of the wheel chock is to simply jack the car up just so the tire just turns, place the chock on one side of the tire to loosen and move the chock to the other side of the tire to tighten, then let the jack down for a perfectly seated spinner to the wheel. It is that simple.
The tool has a 2 inch depth to handle those extra long hubs that protrude more than a normal threaded hub. The tool's height is taller and with the taller impact socket the tool can reach into the deepest wheels. Where a hammer will have a hard time getting a good swing to loosen those tight spinner.
HAMMERS
vs
THREE EARED REMOVAL TOOLS
Are you tired of trying to remove over tightened or seized spinners with a Hammer?
The biggest complaint I get, was removing seized or over tighten spinners. Some have used up to 1,000 pounds of force to remove. With a hammer, it places all that high force onto only one ear at a time, weakening the spinner's ears and breaking some off. My three eared tool applies equal gripping force to all three ears evenly and can reach into the deepest wheels.
Before you use the tool for the first time try the following suggestions.
If you have recently used your standard hammer swing and have used anti-seize on them, make a mark on both the wheel and spinner, UNDO the spinner with my tool. With a torque wrench, tighten to the above settings to see how close the marks lineup. It is OK if our wheels may need a higher setting.
If your spinners are seized,
Make a mark on the wheel and spinner. Use the tool to loosen the spinner, Then retighten using your standard hammer swing and re-mark the wheel and spinner again. Now use your torque wrench to retighten to the settings of 200 to 220 ft/lbs to see how close the new marks line up. You can adjust the toque settings if needed on your wheels.
Use full facts dealing with Seized Cobra & GT40 Halibrand spinners
My standard Cobra tool kit uses a 46mm high end impact socket with a 1/2" drive. I used a Milwaukee battery impact wrench with a case harden 1/2" drive that is rated up to 1,400 of nut busting torque.
Most standard breaker bars use a 1/2” drive and are rated to handle up to about 300 to 450 ft/lbs of torque. That is enough to handle a standard UNDO spinner torque setting with a 1/2" drive.
Some over tightened spinners, that require an UNDO force over 500 to 1,000 ft/lbs of force, a breaker bar with a 1/2" pin type drive will twist off and fail. Most home garages will not have an air impact wrench or a Battery operated impact wrench.
Because of the breaker bar problems on seized spinners, I'm offering a Cobra & GT40 seized removal Kit that has a socket with a 3/4", drive 46mm impact socket. Here are pictures of what I've found as a solution
How to change a tire using a wheel chock
A shop owner who has always use a lead hammer, says three good whacks does it. After testing his 3 whacks method, he hit between 3 and 4 pounds of 210 lbs of torque each time.
The standard accepted tire removal method is to loosen the spinner with a lead hammer, while the car is still on the floor, then Jack the car up, remove the spinner and the wheel, then replace the wheel and finger tight the spinner and let the jack down to keep the wheel from spinning on the floor and tighten with a hammer.
With a wheel chock you simply jack the car up just enough, so the tire just turns. Place the wheel chock on one side of the tire to loosen and then move the chock to the other side of the tire to tighten.It is that simple.
