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valve adjustment #1117675
11/20/11 01:00 PM
11/20/11 01:00 PM
Joined: Dec 2007
Posts: 830
east coast
Otherlane Offline OP
super stock
Otherlane  Offline OP
super stock

Joined: Dec 2007
Posts: 830
east coast
How do you guys adjustment your rockers on a sb?

Re: valve adjustment [Re: Otherlane] #1117676
11/20/11 02:16 PM
11/20/11 02:16 PM
Joined: Oct 2010
Posts: 2,394
Ambridge, Pa.
R
rickraw Offline
top fuel
rickraw  Offline
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Joined: Oct 2010
Posts: 2,394
Ambridge, Pa.
hyd or solids?? i set my solids about .05 tighter than my cam card says. stay safe. cya.

Re: valve adjustment [Re: rickraw] #1117677
11/20/11 03:12 PM
11/20/11 03:12 PM
Joined: Dec 2007
Posts: 830
east coast
Otherlane Offline OP
super stock
Otherlane  Offline OP
super stock

Joined: Dec 2007
Posts: 830
east coast
Solid roller guess I'm asking that I set the valve lash #1 at tdc than what?

Re: valve adjustment [Re: Otherlane] #1117678
11/20/11 03:42 PM
11/20/11 03:42 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
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Posts: 43,007
Bend,OR USA
On any big duration cams, esepcially solid roller grinds, start by watching the valve reatiners and rotate the motor over in the standard direction, when the exhaust valve just starts to open set the intake lash. Once that is done rotate the motor over until the intake valve opens all the way and starts to close and then set the exhaust lash. Do one cylinder at a time and do one side at a time, make sure to do it when the motor is warmed up if the cam card calls for setting the lash hot I do start at the front and work my way back on one side and then do the other, sometimes you may need to run the motor bewteen sides to keep heat in it, especially the first few times you use this method

Last edited by Cab_Burge; 11/21/11 02:21 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: valve adjustment [Re: Cab_Burge] #1117679
11/21/11 07:58 AM
11/21/11 07:58 AM
Joined: Dec 2007
Posts: 830
east coast
Otherlane Offline OP
super stock
Otherlane  Offline OP
super stock

Joined: Dec 2007
Posts: 830
east coast
thanks for the info

Re: valve adjustment [Re: Otherlane] #1117680
11/21/11 08:24 AM
11/21/11 08:24 AM
Joined: Dec 2009
Posts: 20,600
in a cattle trailer down by th...
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Guitar Jones Offline
Paddle faster! I hear banjo music!
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Posts: 20,600
in a cattle trailer down by th...
I prefer to use the eight position Mopar Performance decal procedure. This way with an accurately marked balancer and setting it on the line exactly everytime I can keep records of the adjustments and clearances. I can spot trouble faster that way.

Also I initially adjust them cold, warm the engine fully then adjust an int and exh on each side. Allow the engine to cool overnight and recheck those cylinders to get the cold spec. Now I don't have to have the engine hot to check and set valves.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: valve adjustment [Re: Guitar Jones] #1117681
11/21/11 09:29 AM
11/21/11 09:29 AM
Joined: Dec 2007
Posts: 830
east coast
Otherlane Offline OP
super stock
Otherlane  Offline OP
super stock

Joined: Dec 2007
Posts: 830
east coast
I printed the mopar chat last night so i will be doing the valve that way.

Re: valve adjustment [Re: Otherlane] #1117682
11/21/11 12:45 PM
11/21/11 12:45 PM
Joined: Sep 2003
Posts: 2,008
Sweet Home Alabama
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MRMOPAR622 Offline
top fuel
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Posts: 2,008
Sweet Home Alabama
I set mine the way Mr Cab does. I have found that works best for me. The 1st time I set mine with the engine temp @ 175-180 most of the time and set #1 intake and exhaust and fast as I can and let it set over night and check #1 cold and use the cold setting from then on after warming the engine and making sure the lash is right HOT. With aluminum heads and block that's about the only way you can set them and get them all the same.


"To Be The Man'You Have Got To Beat The Man" "T/D and Pro-Bracket Racer"
Re: valve adjustment [Re: MRMOPAR622] #1117683
11/22/11 10:03 AM
11/22/11 10:03 AM
Joined: Dec 2007
Posts: 830
east coast
Otherlane Offline OP
super stock
Otherlane  Offline OP
super stock

Joined: Dec 2007
Posts: 830
east coast
I think i will do it like Mr cab said,thanks

Re: valve adjustment [Re: Cab_Burge] #1117684
11/22/11 08:26 PM
11/22/11 08:26 PM
Joined: Nov 2010
Posts: 1,397
Carson City, Nevada
Biginchmopar Offline
pro stock
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Joined: Nov 2010
Posts: 1,397
Carson City, Nevada
Quote:

On any big duration cams, esepcially solid roller grinds, start by watching the valve reatiners and rotate the motor over in the standard direction, when the exhaust valve just starts to open set the intake lash. Once that is done rotate the motor over until the intake valve opens all the way and starts to close and then set the exhaust lash. Do one cylinder at a time and do one side at a time, make sure to do it when the motor is warmed up if the cam card calls for setting the lash hot I do start at the front and work my way back on one side and then do the other, sometimes you may need to run the motor bewteen sides to keep heat in it, especially the first few times you use this method




THE ONLY WAY IT SHOULD BE DONE WITH A GOOD SIZE CAM!

PERIOD!


Re: valve adjustment [Re: Biginchmopar] #1117685
11/22/11 09:11 PM
11/22/11 09:11 PM
Joined: Dec 2009
Posts: 20,600
in a cattle trailer down by th...
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Guitar Jones Offline
Paddle faster! I hear banjo music!
Guitar Jones  Offline
Paddle faster! I hear banjo music!
G

Joined: Dec 2009
Posts: 20,600
in a cattle trailer down by th...
Quote:

Quote:

On any big duration cams, esepcially solid roller grinds, start by watching the valve reatiners and rotate the motor over in the standard direction, when the exhaust valve just starts to open set the intake lash. Once that is done rotate the motor over until the intake valve opens all the way and starts to close and then set the exhaust lash. Do one cylinder at a time and do one side at a time, make sure to do it when the motor is warmed up if the cam card calls for setting the lash hot I do start at the front and work my way back on one side and then do the other, sometimes you may need to run the motor bewteen sides to keep heat in it, especially the first few times you use this method




THE ONLY WAY IT SHOULD BE DONE WITH A GOOD SIZE CAM!

PERIOD!







Not necessarilly so. My cam is 276/284 @ .050 .454 lobe lift and a 1.6 rocker. The problem I found with that method is there is pressure on the rocker shaft and the camshaft when adjusting that way. I'm not saying it doesn't work but I found .002 difference in lash that way. I checked with the intake off and the MP chart is on the base circle using that procedure. The other way could be as much as 20 degrees difference and the lifter doesn't look like it's on the base circle. The other downside is you can't keep an accurate record that way. You could be off who knows how many degrees using that method. With the MP method you know you are on the same spot on the cam lobe everytime.

I got nothing on Cab BTW, he's a great guy and set up my valve springs, we just differ on the way to set the valve clearance.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: valve adjustment [Re: Guitar Jones] #1117686
11/22/11 09:26 PM
11/22/11 09:26 PM
Joined: Jul 2009
Posts: 694
Michigan
S
Super Scamp Offline
mopar
Super Scamp  Offline
mopar
S

Joined: Jul 2009
Posts: 694
Michigan
Quote:

Quote:

Quote:

On any big duration cams, esepcially solid roller grinds, start by watching the valve reatiners and rotate the motor over in the standard direction, when the exhaust valve just starts to open set the intake lash. Once that is done rotate the motor over until the intake valve opens all the way and starts to close and then set the exhaust lash. Do one cylinder at a time and do one side at a time, make sure to do it when the motor is warmed up if the cam card calls for setting the lash hot I do start at the front and work my way back on one side and then do the other, sometimes you may need to run the motor bewteen sides to keep heat in it, especially the first few times you use this method




THE ONLY WAY IT SHOULD BE DONE WITH A GOOD SIZE CAM!

PERIOD!







Not necessarilly so. My cam is 276/284 @ .050 .454 lobe lift and a 1.6 rocker. The problem I found with that method is there is pressure on the rocker shaft and the camshaft when adjusting that way. I'm not saying it doesn't work but I found .002 difference in lash that way. I checked with the intake off and the MP chart is on the base circle using that procedure. The other way could be as much as 20 degrees difference and the lifter doesn't look like it's on the base circle. The other downside is you can't keep an accurate record that way. You could be off who knows how many degrees using that method. With the MP method you know you are on the same spot on the cam lobe everytime.

I got nothing on Cab BTW, he's a great guy and set up my valve springs, we just differ on the way to set the valve clearance.





I use the Cab way and it works for the tight TD setup 440-1 the cups hold that tight angle well..

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Just One Man's Opinion Mopar Mafia Racing
Re: valve adjustment [Re: Super Scamp] #1117687
11/22/11 09:45 PM
11/22/11 09:45 PM

A
Anonymous
Unregistered
Anonymous
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A



Do it Cabs way and you are fine but....These modern crazy lobed over scienced grinds are not done like the old days--they can be downright odd as to where the actual low spot is. Do a modern roller grind by the Cab method,,,keep turning , keep turning and all of a sudden you are way loose! Well..question is..set it there or just call that the "runway" for valve opening? Do two engines a day for as long as I have and you start thinking cam grinders are nuts.
After all is said and done any engine set by the method that Cab explains so well will be FINE. These days with aluminum heads and rockers of all types, crazy grinds etc I like to set valves hot and the not care the least about where they are cold ( because it will be different) and guessing which way and how much thay move is well...a moving target.







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