24 valve P pump timing

deere puller · 02-24-2007, 08:59 PM

What would a good timing be for a 24 valve with a p pump, Ive had alot of people and shops tell me 16 to 19 but a couple tell me up to 25. Im having alot of trouble getting this thing to run right and wondered what others are at. Its at 21 right now.

diesel_ram_man · 02-24-2007, 09:32 PM

It kinda depends what your going to use the truck for. And do you have your head studed and/or o-ring'd?

sstockton · 02-25-2007, 01:05 AM

what other settings have you tried? I would personally start low and work your way up. Its kind of time consuming but it will vary from truck to truck, depending upon mods and what fuel you are using. I'd try running a lot closer to 16. Unless you have studs, I think that 21 is way too much. That will be pretty hard on the street.
Sean

Dazedandconfused · 02-25-2007, 02:45 AM

There are a few 12valves here running up close to 25* but they are studed and ringed.

Andy

sstockton · 02-25-2007, 04:06 PM

Yeah, they probably aren't very street friendly either. highest I've heard of on a 12v was about 26-28*. 16-18 should be good with moderate to semi high fuel. It may smoke a little more, but I think it will run and idle a lot smoother and be more drivable.
Sean

deere puller · 02-25-2007, 04:20 PM

Ya its not very good on the street, and thats all it will be used for. It is studded but not oringed, and has a pretty good pump on it and 155 bd injectors.

DPS · 02-25-2007, 04:39 PM

Is your pump stock? Has it been calibrated recently? What kind of drivability complaint do you have? It may not be a timing problem, there are other adjustments in the pump that effect drivability more.

Dazedandconfused · 02-25-2007, 04:51 PM

Quote:

Originally Posted by sstockton

Yeah, they probably aren't very street friendly either. highest I've heard of on a 12v was about 26-28*. 16-18 should be good with moderate to semi high fuel. It may smoke a little more, but I think it will run and idle a lot smoother and be more drivable.
Sean

600+hp daily driver. I have not heard any complaints about driveability.

DPS · 02-25-2007, 05:05 PM

Quote:

Originally Posted by deere puller

What would a good timing be for a 24 valve with a p pump, Ive had alot of people and shops tell me 16 to 19 but a couple tell me up to 25. Im having alot of trouble getting this thing to run right and wondered what others are at. Its at 21 right now.

My previous questions were directed to the post that started the thread and the drivability part was related to the fact that deere puller says "Im having alot of trouble getting this thing to run right"

deere puller · 03-01-2007, 02:30 AM

The pump is not stock, it was on a friends truck for a few months, but his was a 12v. It has bigger barrels and plungers, dif cam, and 4K gov springs, It ran good on his truck, but now is hard to start(has to be cranked alot longer than it should), when giving it light throttle it wnats to take off( like you are pushing alot harder than you are) jsut really jumpy, and it doesnt want to idle smooth part of the time. other than the pump, the motor has 50 horse injectors( which I have ordered new 155 ones but dont have them in yet, the old ones have alot of miles on them and jsut wonder if they are getting worn out and kinda think one may be sticking),and a hx 50 hybrid charger. thanks for any help

02-24-2007, 08:59 PM	#1
deere puller Member Join Date: Oct 2006 Posts: 191 Points: 4,694 Thanks: 0 Thanked 3 Times in 3 Posts	24 valve P pump timing What would a good timing be for a 24 valve with a p pump, Ive had alot of people and shops tell me 16 to 19 but a couple tell me up to 25. Im having alot of trouble getting this thing to run right and wondered what others are at. Its at 21 right now.

02-25-2007, 01:05 AM	#3
sstockton Senior Member Join Date: Jan 2009 Posts: 3,513 Points: 20,439 Thanks: 3 Thanked 63 Times in 59 Posts	what other settings have you tried? I would personally start low and work your way up. Its kind of time consuming but it will vary from truck to truck, depending upon mods and what fuel you are using. I'd try running a lot closer to 16. Unless you have studs, I think that 21 is way too much. That will be pretty hard on the street. Sean __________________ 2000 2500 reg. cab 4x4 auto 577hp 09 6.7L QC LB stick, 4x4. TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835) www.totalperformancediesel.com

02-25-2007, 02:45 AM	#4
Dazedandconfused Cummins Man Join Date: Dec 2008 Location: Rabbit Hash, Ky Posts: 980 Points: 1,584 Thanks: 1 Thanked 3 Times in 2 Posts	There are a few 12valves here running up close to 25* but they are studed and ringed. Andy __________________ 04 Duramax 93 Dodge D-250 91 Dodge D-350 84 Dodge D-150

02-25-2007, 04:06 PM	#5
sstockton Senior Member Join Date: Jan 2009 Posts: 3,513 Points: 20,439 Thanks: 3 Thanked 63 Times in 59 Posts	Yeah, they probably aren't very street friendly either. highest I've heard of on a 12v was about 26-28. 16-18 should be good with moderate to semi high fuel. It may smoke a little more, but I think it will run and idle a lot smoother and be more drivable. Sean __________________ 2000 2500 reg. cab 4x4 auto 577hp 09 6.7L QC LB stick, 4x4. TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)* www.totalperformancediesel.com

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02-25-2007, 04:39 PM	#7
DPS Crew Chief Join Date: Feb 2006 Posts: 15 Points: 42 Thanks: 0 Thanked 0 Times in 0 Posts	Is your pump stock? Has it been calibrated recently? What kind of drivability complaint do you have? It may not be a timing problem, there are other adjustments in the pump that effect drivability more.

03-01-2007, 02:30 AM	#10
deere puller Member Threadstarter Join Date: Oct 2006 Posts: 191 Points: 4,694 Thanks: 0 Thanked 3 Times in 3 Posts	The pump is not stock, it was on a friends truck for a few months, but his was a 12v. It has bigger barrels and plungers, dif cam, and 4K gov springs, It ran good on his truck, but now is hard to start(has to be cranked alot longer than it should), when giving it light throttle it wnats to take off( like you are pushing alot harder than you are) jsut really jumpy, and it doesnt want to idle smooth part of the time. other than the pump, the motor has 50 horse injectors( which I have ordered new 155 ones but dont have them in yet, the old ones have alot of miles on them and jsut wonder if they are getting worn out and kinda think one may be sticking),and a hx 50 hybrid charger. thanks for any help

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