???? bout cam degree

[earthmover]

ok I know you guys are tried of me asking ???....but I dont really know what so I need to ask the pros...now I found tdc with the piston stop...read 45 one way and 55 the other which is 100 then / by 2 and get 50 so I turn motor back to 50 and 0 the wire...now I am playiong with the old cam new cam should be here this week (xe282-520/540 thanks Bjr) and the one that I'm playing with is the old one 306 555/555 now I dont really understand how to read this to use the wheel...valve timing 0.015
lobe life 0.37 intake 0.37 intake
lobe lift 0.327 ex 0.37 ex

vavle timing @0.015 lift

intake 47btdc 79abdc
ex 87bbdc 39atdc



I dont really understand what I should do here and what # to use I have a print out from the int. that I got from luntie site but not to much info on which # to use sorry for the dumb ????? but I would like to know before I mess things up thanks......:read2:

 

[1wild&crazyguy]

find .050 lift on int open and close and add the 2 after obtaining a tdc-0* then see what you come up with in comparison to the advertised cl. that'll tell ya how advanc';d or reartr'd it is.

I'm hammer'd right now so not very indpth bout it, sorry

 

[crackedback]

I'm going to guess that it was 45 on one side of zero and 55 on the other side of zero, correct?

If that's the case, turn the wheel back so the wire points at 5* on the side of 0 that showed 55, then loosen the degree wheel and line it up at 0 with the wire. Or, just bend the wire so it points to the TDC (0) mark on the wheel. Then recheck it again to confirm it read the same on both side with your piston stop.

The 50* number is the amount of degrees you need to head back towards TDC point from either of your readings (45,55) to get to actual TDC.

 

[1wild&crazyguy]

with a dil indicator on the piston rotate clockwise to highest reading, then counter clockwise to highest reading again, TDC is half way between the 2 readins.
Insert int and exh lifters for that cylinder and set up your dial indicator then rotate engine to the base circle and set indicator .020 compressed travel and zero the gauge, then rotate the engine clockwise to the @.015 reading or checking clearance and note, Continue rotating engine until the closing check point is reached and note, now check the cam card and correct if needed one way or the other by keyway or offsetcam

 

[Badart]

I am no expert, but I will give it a shot. So are you trying to degree the cam? If so you can do the intake centerline method that I have used before. I think that it is the easiest. Find TDC just like you listed above. You need to know what your intake centerline is on your cam card Example 106*. Mount your dial indicator on the #1 cylinder intake rocker directly above the valve spring with a solid lifter and the correct length pushrod or an adjustable pushrod. Turn the engine clockwise just until the spring reaches it's maximum lift and stop. Write down the degree on the wheel. Turn the engine counter clockwise until the spring reaches it's maximum lift again. Take the slack out of the timing chain and write down that number and divide by 2 and that is your intake centerline. Example 156*+56*=212/2=106 If you are off by a degree or two it really won't matter, but if it is more you will have make timing adjustments on the crank.

 

[earthmover]

hay thanks all it was 45 one side 55 the other side and I turn it back to 5 to get 0 or tdc and thats when I looked at the card and said wth I didnt understand it but I will try the way it is ex. and see what I come up with ...I want to learn before I install the new cam and get things wrong....thanks everybody.........................................................................