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Timing Camshaft/Crankshaft

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Po Folks

05-13-1999 16:45:27

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I'm sure this was discussed at length not long ago, but I can't find any '99 posts in the archives.
I'm also sure someone said #1 cylinder should be at TDC when matching the timimg marks. Can't find that statement in the manuals.
On this engine #1 is middle way, not at the top. Where is it supposed to be?

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04-29-2000 08:12:38

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Re: Timing Camshaft/Crankshaft in reply to Po Folks, 05-13-1999 16:45:27

what is the most powerfull camshaft?

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05-13-1999 22:41:19

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Re: Timing Camshaft/Crankshaft in reply to Po Folks, 05-13-1999 16:45:27

Be sure the timing marks are the right ones. There have been some gears that have come through with a small mark 180 out of sync that looks like a timing mark. At TDC,#1 should have both valves closed. If the gears are aligned right, like Zane says, the piston position doesn't matter. It becomes more important when installing a side-mount distributor.

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ZANE

05-13-1999 20:20:12

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Re: Timing Camshaft/Crankshaft in reply to Po Folks, 05-13-1999 16:45:27

Where the piston is is irrevelant to the timing of the gears. Just put the marks together and that's it.
Only once in my 50 years of mecanicing did I see a cam gear that was marked wrong and it nearly drove me crazy before I found what was wrong.
The intake valve should just begin to open when the piston leaves top dead center and close when it gets to the bottom of the hole.The second time the piston gets to the bottom of the cylinder the exhaust valve will begin to open as the piston starts to the top and will close just as it reaches the top of the cylinder.As the piston starts down again from the top the intake valve will begin to open again.

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Po Folks

05-14-1999 02:40:59

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Re: Re: Timing Camshaft/Crankshaft in reply to ZANE, 05-13-1999 20:20:12

Thanks...

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