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Old 01-17-2006, 05:37 AM
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Spiral retaining clips?

I am building a mopar 493 stroker and using Ross floating pistions with H beam rods. The pistons came with the pins and 32 spiral retaining clips. My question is, why so many clips? This is my first time using floating pistons and I would think that one on each side of the pin would be enough, but they sent me enough for two on each side! Is this what they call double locks? Please excuse my ignorance and thanks for the help.
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Old 01-17-2006, 05:56 AM
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locks

Yep 2 per side...

If you would only install 1 per side it would allow the wrist pin to pound back and forth and more then likely beat one of the locks to death....resulting in a failure....

Keith
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Old 01-17-2006, 06:13 AM
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Thanks a bunch! Now that you said this, and I think about it, it makes a lot of sense.
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Old 01-17-2006, 07:43 AM
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Yep double spiro locks are pretty standard.

I usually put two in one side in all the pistons ahead of time.

Then when I get ready to put the pistons on the rods, I only have half of them to do. Saves on the fingers.
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Old 01-17-2006, 09:49 AM
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If this is your first time doing spiral locks, take some patient pills before you start. It really isn't that hard, but until you get the hang of it, is seems almost impossible. I will see if I can find a picture of how to hold them when installing them. Too hard to describe in words. Either way you look at it after 32 of them you will have tender fingers.
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Old 01-17-2006, 11:28 AM
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locks

Yea, Royce makes a good point. The first time with the spira-locks will result in bloody fingers for some guys,,,,you might want to get your spiderman bandaids ready..... One big help is to hold the piston, piston/rod combo solid some how so you can have both hands free.. I have soft jaws for my vise to hold the part in...Once you do a few you get "the feel" and they go good.....

If you need to remove them i use a small craftsman tune-up screwdriver with a small hook ground into the end....

Keith
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Old 01-17-2006, 01:49 PM
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I see what you guys are talking about now! I just finished putting a set of locks in one side of the piston, man how my fingers hurt! 16 down and 16 to go.
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Old 01-17-2006, 03:40 PM
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16 down and you can still type?

Good Job!!
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Old 01-17-2006, 05:39 PM
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The engineer that designed those is prolly still laughing about it.
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Old 01-17-2006, 10:07 PM
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Anybody got an opinion on these?

http://raceeng.com/ShowSuppliers.asp?cat=V8&subcat=LB
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Old 01-18-2006, 03:58 AM
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FINISHED! Two cuts and three finger nails have a groove cut down the center! They say that these floating pistons have their advantages and one of them is being easy to put on and off the rod. Well to me easy is going to the machine shop and saying here take these off and put these on! Thanks guys for your help.
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Old 01-18-2006, 10:07 AM
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If you ever had to change a few piston in a enclosed trailer while sitting at a rest stop in Ohio trying to make it before the morning you'd appreciate it!.
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Old 01-18-2006, 10:12 AM
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spiral locks

Quote:
Originally Posted by johnsongrass1
If you ever had to change a few piston in a enclosed trailer while sitting at a rest stop in Ohio trying to make it before the morning you'd appreciate it!.
Hopefully I won't be doing that anytime soon.
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