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Jeep Wrangler YJ
YJ General Discussion
A Repetitive Manifold Problem
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<blockquote data-quote="TimberTim" data-source="post: 436947" data-attributes="member: 20208"><p>My "91" had two of the cupped washers missing. I didn't want to go to the hasel of locating new ones so I simply made my own ! I chucked up a 3/4" or 7/8" Hole saw in my drill press and drilled two plugs from a piece of 3/8" flat plate . the result was two Discs 3/4" in diameter with a hole in the center. I clamped the disc in my vise and used a 1" drill Bit to form the cup on one side. Then I enlarged the center hole to 3/8" and tightened a long 3/8" bolt in the center hole . I chucked the bolt into the drill press and turned it on and used a 4 1/2" peanut grinder to form the chamfer on the out side edge. I didn't harden mine , but if you wanted to harden yours simply, cut the bottom out of a soup can, place the discs in it and add enough used motor oil to cover the discs , add a dash of gas and light it on fire. allow the mixture to burn it's self out and Viola....Two Hardened cupped washers...... the used motor oil is loaded with carbon from the combustion process of the engine and helps in the hardening process..... Tim</p></blockquote><p></p>
[QUOTE="TimberTim, post: 436947, member: 20208"] My "91" had two of the cupped washers missing. I didn't want to go to the hasel of locating new ones so I simply made my own ! I chucked up a 3/4" or 7/8" Hole saw in my drill press and drilled two plugs from a piece of 3/8" flat plate . the result was two Discs 3/4" in diameter with a hole in the center. I clamped the disc in my vise and used a 1" drill Bit to form the cup on one side. Then I enlarged the center hole to 3/8" and tightened a long 3/8" bolt in the center hole . I chucked the bolt into the drill press and turned it on and used a 4 1/2" peanut grinder to form the chamfer on the out side edge. I didn't harden mine , but if you wanted to harden yours simply, cut the bottom out of a soup can, place the discs in it and add enough used motor oil to cover the discs , add a dash of gas and light it on fire. allow the mixture to burn it's self out and Viola....Two Hardened cupped washers...... the used motor oil is loaded with carbon from the combustion process of the engine and helps in the hardening process..... Tim [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
A Repetitive Manifold Problem
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