The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - How can I turn the crank and cam so the timing marks line up right?

Bigdav160 · 07-16-2018, 05:21 PM

Just so you know, these can be interference engines meaning the pistons can hit the valves. Even a collision turning by hand will make the valve not seal.

I would have loosened the rocker arms.

The picture in #15 is number 1 compression. I usually turn the crank back 8-10 degrees and set the distributor straight up and lock it down.

07-16-2018, 05:21 PM	#24
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: How can I turn the crank and cam so the timing marks line up right? Just so you know, these can be interference engines meaning the pistons can hit the valves. Even a collision turning by hand will make the valve not seal. I would have loosened the rocker arms. The picture in #15 is number 1 compression. I usually turn the crank back 8-10 degrees and set the distributor straight up and lock it down. __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe