[bbcguy140]

so i recently chenged the timing set on my 454 to a double roller set. the old cam gear was so worn that it had jumped time. wharn i insatlled the cam gear i could only get it to go on to the cam with the timing dot in the 12 o'clock position due to the position of the a;ignment dowel on the cam. and i know that its supposed to be in the 6 o'clock posion in order to line up with the mark on the crank gear which is at the 12 o'clock position. i was just wondering if this means that my cam was 180 degrees off because i had cranked the engine with #one plug out till i heard compression then turned it to zero with a wrench. but when i took off the timing cover the timing marks were in the right positions but since it jumped the cam was a tooth or so off. so i dont really understand why i couldnt put the new cam gear on in the 6 o'clock position instead of the 12 o'clock. any suggestions are appreciated thanks for reading

[richard stewart 3rd]

Hi,
It doesn't really matter 12 & 6 or 6 & 12 but it's easer to line the
dots up @ 6 & 12, just turn the cam until the dot is at 6 o-clock & lined up with the crank dot, button it up. That will put you in the #6 firing position, turn the crank once more & your @ #1 firing position drop the disturber in.
Good luck,
Rich

[bbcguy140]

id assume u mean to turn the cam clockwise correct? thanks for the help its appreciated

[poncho62]

If you still have the cover off, turn the crank one full turn......That should bring the cam gear mark to 6 o'clock. When ever I put a timing set on, I always turn it over by hand a couple of full turns and then recheck my marks.......just to make sure I did it right.

[NOlowrider]

Like Richard said...
If you align the cam at 6 o'clock and the crank at 12 o'clock this will make it easier to eyeball the dots. But, you are at the #6 firing postion. Once you have it aligned (12 and 6) just turn the crank 360* and drop the dist. This will put you at #1 firing position. Both at 12 is #1 position.

Or, you can leave it and drop the dist in at the #6 lug. Most people just spin it another 360* for simplicity.

If you loose track of where you are, it's ok at this point. As long as the dots where aligned. At the #1 position, both intake and exhaust valves on the #1 cylinder will be closed. If the intake is off just look at the lifters. They should be down in the lifter bore. You will be able to look at the others to tell. If the intake is on, just waite till you have the push rods in and adjusted and watch the rocker arms.

[bbcguy140]

thanks guys i really appeciate it i hope i remember that next time maybe i will take the cover off again when i get the motivation again and try those suggestions