Club Cobra - Trouble with knock off spinners

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It's not Plutonium. When you sweep the floor just don't eat or snort the sweepings.

Seriously. if leaded fuel, lead paint, lead shot, lead sinkers, and lead toys didn't kill us all in the 60's, swinging a lead hammer twice a year shouldn't do it.

Quote:

Originally Posted by rpatton3 (Post 1270677)

MANY years ago, my sister's 1969 E-Type would not let go of knock off. They were labelled on and off and left and right. We called them 'dog killers' and just two ears. V-12 cars had giant nut and brass wrench for lead hammer.

I used a six foot steel pipe and put it on knock off. She put car in reverse and I had pipe on driveway. After a huge groan, everything broke loose with no damage. I was 19 and my sister was 17. My dad was shocked after we told him what we did. NEVER, EVER TRY THIS AT HOME.

We were very lucky nobody, including car, was hurt

This is similar to the procedure used to loosen VW/Porsche wheel hub nuts, which I think are up around 400 ft-lbs.

Make a big wrench: Take a Breaker bar and slip a hyd. jack handle over it. Now slip a 8' length of fence post or pipe over the jack handle. Entire apparatus should be about 12' long.

Stand on a picnic table. Now jump on the big wrench. Pop! It's loose!

I've always found when you encounter a stubborn thread. The more you hit it from one side, the harder it is to get it to turn. Try going around the KO's three points starting with lighter hits. Keep going around.

Ralphy

Quote:

Originally Posted by Voyager (Post 1270706)

Rpatton3,

My concern is not with the hammer, but lead poisoning.

Bob

Only when you do what this boy is doing Bob....

http://s3.amazonaws.com/rapgenius/aDASC12.jpg

I don't think that's lead nor a boy. lol

Ralphy

Using an Air Chisel for Hammer Blows

Something that could be used to provide a combined effect of an impact wrench and lead hammer is to use an air chisel on the spinner ears. Obviously, you will want to use something to protect the surface of the ears (ie., aluminum, or anything softer than the spinner). I saw a video of someone using one on a rather large (1-7/16”) radiator fan clutch nut (link below). He simply put the chisel head on the edge of one of the flats to sort of push/rotate it around and then pulled the trigger while pressing down to push on that edge. About three half second bursts and it loosened right up. Granted it wasn’t tightened to the same torque as a spinner, but with a spinner you do have the well defined surface of the spinner ear to put the chisel against and provide direct blows.

Although in the video he uses a standard chisel head attachment, it looks like the head in the shape of an inverted “V” would be the preferred attachment here, as the insides of the “V” are not sharp, so it will be providing more of a hammer effect than cutting effect on whatever you are using to protect the ear, and it can straddle the ear to keep it in place. Chisel and attachments < $20 at Harbor Freight.

As a disclaimer, I haven’t done this nor have I seen it done, but the concept of using sudden blows on the ears is essentially the same as with the lead hammer, just a much much faster repetition of blows. Just use the same method as has already been pointed out in other posts on the subject….just a few seconds of taps on each ear, and work your way around, several times if necessary. As with an impact wrench, the vibratory action alone will have a tremendous effect on breaking the molecular bond that gets established between the threads over time.

Use of air chisel is at around 2:20
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