67' AIM: why are some lock washers on the bolt head side?
Reassembling the chassis on my 67' and periodically according to the AIM they have the lock washer on the bolt head side instead of the nut side. Why is this??
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Re: 67' AIM: why are some lock washers on the bolt head side?
Dave,
Can you cite a page and part number as an example?
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Re: 67' AIM: why are some lock washers on the bolt head side?
Yes! Terry is correct. Also the pulley for the emergency brake cable. Page G162 of the AIM for a 1967; it has the bolt then the lock washer going into the bracket that holds the pulley with the nut on the other side??Comment
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Re: 67' AIM: why are some lock washers on the bolt head side?
The 1980 AIM shows the same thing, the lock washer on the bolt head side for the upper shock mount. It stopped me momentarily, but I followed the AIM. I do wonder if that configuration is even worth it, since it's the nut wiggling loose you're worried about. (Seems to me you could have some sort of lock nut, although that particular nut is very thin as-is.) AIM said, so I did...-Kenn
1970 LS-5
1970 350/300
1980 L-48
2004 LS-1Comment
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Re: 67' AIM: why are some lock washers on the bolt head side?
It doesn't matter which side the lock washer is on, it does its job the same whether its under the nut or the bolt head. It's most important function is to act like a spring and provide a relatively constant clamp load in the joint as the components settle and/or the the nut loosens slightly. It acts like a spring equally well in either location.
One other reason to use a lock-washer is to provide a hardened surface for the nut to turn against during tightening. So, if for some reason, you had to hold the nut and turn the bolt in tightening (i.e.: no room for a tool to turn the nut) you might want to put the lock-wsher under the bolt head.Comment
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