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Correct procedure for 440 timing. #1839166 06/01/15 08:47 PM 06/01/15 08:47 PM
Joined: Jan 2003 Posts: 580 Shelby, Ohio JeffL OP mopar
JeffL OP mopar Joined: Jan 2003 Posts: 580 Shelby, Ohio	My timing cover has 3 marks. 10 before, zero(actually a hole), and 10 after. My harmonic balancer has a lot of marks on it, starting at 10 after and ending at 50 before. It is a fluidampr. With engine warm, idling, and vacuum advance unplugged. Should initial be set to 12-14 before on fluidampr aligned with the zero on the timing cover? Then do I need to rev up to 3000rpm with vac unplugged and get as close to 35 before on the fluidampr? When all that is done, with vacuum plugged back in, I am getting like 48 or 50 before at 3000rpm Is this ok? It seems to run great, starts up with a little hesitation when at normal operating temp. My engine is a fresh 440, eddy head, Mr Sixpack cam, eddy rpm intake, street demon carb, schumacher header. I looked through the forums and google. I found a bunch if different answers. Thanks a lot! Last edited by JeffL; 06/01/15 10:05 PM.

Re: Correct procedure for 440 timing. [Re: JeffL] #1839208 06/01/15 09:36 PM 06/01/15 09:36 PM
Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina sgcuda master
sgcuda master Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina	Sounds good enough. If by hesitation during start up, you mean the timing advance is kicking the starter back, you may have to lower your initial advance. Depends on cam, compression, starter and battery quality. A start retard might help also. BTW, did you verify TDC beforehand? [image][/image]

Re: Correct procedure for 440 timing. [Re: JeffL] #1839217 06/01/15 09:48 PM 06/01/15 09:48 PM
Joined: Jan 2003 Posts: 2,152 Fancy Farm Ky W wyoming top fuel
wyoming top fuel W Joined: Jan 2003 Posts: 2,152 Fancy Farm Ky	Are you sure you didn't get the before and after on the balancer backwards? Usually they will show a lot of degrees before, the after ones not so much since they don't do you much good.

Re: Correct procedure for 440 timing. [Re: sgcuda] #1839224 06/01/15 09:54 PM 06/01/15 09:54 PM
Joined: Jan 2003 Posts: 580 Shelby, Ohio JeffL OP mopar
JeffL OP mopar Joined: Jan 2003 Posts: 580 Shelby, Ohio	Yes i believe it's kicking the starter back only when engine is warm. Starts fine when cold. Piston 1 was at TDC when 0 on balancer was aligned with 0 on timing cover. Is that what you mean by verifying tdc? Thanks!

Re: Correct procedure for 440 timing. [Re: wyoming] #1839227 06/01/15 09:55 PM 06/01/15 09:55 PM
Joined: Jan 2003 Posts: 580 Shelby, Ohio JeffL OP mopar
JeffL OP mopar Joined: Jan 2003 Posts: 580 Shelby, Ohio	I could have that backwards. I will check.

Re: Correct procedure for 440 timing. [Re: JeffL] #1839456 06/02/15 01:46 AM 06/02/15 01:46 AM
Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina sgcuda master
sgcuda master Joined: Jan 2005 Posts: 4,243 Charlotte, North Carolina	If the timing curve is adjustable, you might want to take 5 degrees out of your base timing. That should help startup. [image][/image]

Re: Correct procedure for 440 timing. [Re: JeffL] #1839624 06/02/15 12:09 PM 06/02/15 12:09 PM
Joined: Jan 2003 Posts: 75,015 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,015 U.S.S.A.	Originally Posted By JeffL My timing cover has 3 marks. 10 before, zero(actually a hole), and 10 after. My harmonic balancer has a lot of marks on it, starting at 10 after and ending at 50 before. It is a fluidampr. With engine warm, idling, and vacuum advance unplugged. Should initial be set to 12-14 before on fluidampr aligned with the zero on the timing cover? Then do I need to rev up to 3000rpm with vac unplugged and get as close to 35 before on the fluidampr? When all that is done, with vacuum plugged back in, I am getting like 48 or 50 before at 3000rpm Is this ok? It seems to run great, starts up with a little hesitation when at normal operating temp. My engine is a fresh 440, eddy head, Mr Sixpack cam, eddy rpm intake, street demon carb, schumacher header. I looked through the forums and google. I found a bunch if different answers. Thanks a lot! What distributor are you using? If it is MP is it the one with the adjustable mechanical advance? Also you should run the RPM up higher than 3000 to make sure it's not advancing more.

Re: Correct procedure for 440 timing. [Re: JohnRR] #1839671 06/02/15 01:03 PM 06/02/15 01:03 PM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	If your running both centrifical(mechanical) and vacume advance then all you want to do is hold the engine at high enough rpm to total all the advance,usually 3000 rpm ,adjust any additional advance by moving the distributer.Your final total should be 33 to 37 degrees.If your dampner is degreed you can mark it at the desired total and at 3000 rpm you should align your degreed mark with 0 on the timing tab. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: Correct procedure for 440 timing. [Re: JeffL] #1839863 06/02/15 05:07 PM 06/02/15 05:07 PM
Joined: Feb 2015 Posts: 2,076 CA C crackedback top fuel
crackedback top fuel C Joined: Feb 2015 Posts: 2,076 CA	Back off initial timing so the engine starts when hot, no kickback. It should start with a flick of the key. Wherever that is, run it there. I'll guess the engine should idle pretty easy at 800ish rpm. If you know where it wants total timing, subtract initial timing number from total timing number that gives you the mechanical advance you want. Adjust mechanical advance to get that number. I wouldn't pay attention to the vacuum advance until you have the initial/mechanical/total figured out.

Re: Correct procedure for 440 timing. [Re: JeffL] #1840479 06/03/15 02:10 PM 06/03/15 02:10 PM
Joined: Jan 2006 Posts: 360 Ohio shorthorse enthusiast
shorthorse enthusiast Joined: Jan 2006 Posts: 360 Ohio	Originally Posted By JeffL Yes i believe it's kicking the starter back only when engine is warm. Starts fine when cold. Piston 1 was at TDC when 0 on balancer was aligned with 0 on timing cover. Is that what you mean by verifying tdc? Thanks! Verify TDC - Your Fluidampr is probably pretty accurate but if you want to find true TDC, get one of these.

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