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8N Valve springs

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Hawk (TN)

02-24-2001 17:21:38




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I am replacing the valve lifters, valves, valve springs and a whole lot of other stuff in my 8N142006. The new valve springs ends are different. One end has the loops closer together then the other end. Does it make any difference which way they are installed? Thanks
Hawk (TN)




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raytasch

02-24-2001 18:29:14




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 Re: 8N Valve springs in reply to Hawk (TN), 02-24-2001 17:21:38  
Loose wound end close to cam and lifters. ray



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Russ in SoCal

02-25-2001 15:40:45




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 Re: Re: 8N Valve springs in reply to raytasch, 02-24-2001 18:29:14  
Right on, Raytasch. If Hawk cares, I've been told the reason on this is: Keep the mass (weight, to keep it simple) of the closely wound end where it won't move as much. Don't want all them coils hanging out there bouncing.
Russ



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Al English

02-25-2001 17:22:54




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 Re: Re: Re: 8N Valve springs in reply to Russ in SoCal, 02-25-2001 15:40:45  
Hi Russ, Your right about putting the end with the least mass toward the end with the most movement. The reason for making valve springs tapered, or with coils closer at one end, is to minimize hamonic vibrations which can damage the springs and lead to other valvetrain problems. Valve springs with straight wound coils usually require a separate inner damper coil to keep things under control...Al English

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Russ in SoCal

02-25-2001 21:09:54




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 Re: Re: Re: Re: 8N Valve springs in reply to Al English, 02-25-2001 17:22:54  
Thanks, Al. I believe that info was included in what I had read. It took your reminder to wake up that brain cell.
Russ



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