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Jeep Wrangler YJ
YJ General Discussion
New Cam, Timing Chain & Head. #1 No Compression
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<blockquote data-quote="Gilaguy23" data-source="post: 429588" data-attributes="member: 19498"><p>So if you have verified #1 piston is top dead and the balancer marks are way off then id mark the balancer for reference where TDC is. I cant recall clearly but when I did my timing set in my 4 banger I had read several posts where guys said the dots on the new timing set were 180 off or there was more than a couple dots confusing the issue. Keep in mind if you are rotating the engine by hand and expecting to see every mark line us every rotation you wont. It will be every other rotation. valves have to open,close and stay shut each rotation of the crank. Off the top f my head I cant think of how you can set #1 to tdc and rotate the cam without the chain to the correct spot for combustion in #1. Then if the chain/sprockets are put back on you would be good to go for valve timing.</p></blockquote><p></p>
[QUOTE="Gilaguy23, post: 429588, member: 19498"] So if you have verified #1 piston is top dead and the balancer marks are way off then id mark the balancer for reference where TDC is. I cant recall clearly but when I did my timing set in my 4 banger I had read several posts where guys said the dots on the new timing set were 180 off or there was more than a couple dots confusing the issue. Keep in mind if you are rotating the engine by hand and expecting to see every mark line us every rotation you wont. It will be every other rotation. valves have to open,close and stay shut each rotation of the crank. Off the top f my head I cant think of how you can set #1 to tdc and rotate the cam without the chain to the correct spot for combustion in #1. Then if the chain/sprockets are put back on you would be good to go for valve timing. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
New Cam, Timing Chain & Head. #1 No Compression
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