I have a timing & tdc question, all I get online deals with distributor caps. My S10 has 235,000 miles, I replaced the sprockets, chain & tensioner and aligned them with the tabs on the tensioner. Now I need to find tdc. I watched your video on how to do that with a psi/vacuum gauge. My question is do I need to retime after twisting the drive shaft back and forth to find tdc?? And does it matter if timing is 1 degree off?
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