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Valve adj question? #1255851 06/23/12 01:43 AM 06/23/12 01:43 AM
Joined: Dec 2009 Posts: 161 SE Iowa J Jonnyj00 OP member
Jonnyj00 OP member J Joined: Dec 2009 Posts: 161 SE Iowa	Took the satellite to the track tonight for test and tune made about 6 passes decided to run the valves at the end because we hadnt for awhile and both valves on #7,and #8 were very tight. Im talking like the spring was 1/4 of the way compressed when it should have had lash. So I loosened them up and the adjuster bolt was up way too far and the pushrod fell out while doing my 1/4 turns on the crank. I know I was adj them right because all the other cylinders were fine on both exhaust and intake. It was weird both intake and exhaust on #7 and #8 were like this. Any ideas what would cause this? It cant be a lobe off the cam because I would think it would be the opposite problem. Thanks guys!

Re: Valve adj question? [Re: Jonnyj00] #1255852 06/23/12 01:55 AM 06/23/12 01:55 AM
Joined: Aug 2003 Posts: 43,269 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,269 Bend,OR USA	Quote: Took the satellite to the track tonight for test and tune made about 6 passes decided to run the valves at the end because we hadnt for awhile and both valves on #7,and #8 were very tight. Im talking like the spring was 1/4 of the way compressed when it should have had lash. So I loosened them up and the adjuster bolt was up way too far and the pushrod fell out while doing my 1/4 turns on the crank. I know I was adj them right because all the other cylinders were fine on both exhaust and intake. It was weird both intake and exhaust on #7 and #8 were like this. Any ideas what would cause this? It cant be a lobe off the cam because I would think it would be the opposite problem. Thanks guys! Sounds like you where trying to adjust them with the valves opened Describe the method you use to adjust your valves Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Valve adj question? [Re: Cab_Burge] #1255853 06/23/12 03:06 AM 06/23/12 03:06 AM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	I think you're doing something wrong. There's no way you're "out of adjustment" by that much. You said "1/4 turn of the crank"; You typically want to make adjustments @ 1/2 turns of the crank starting @ TDC. LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: Valve adj question? [Re: StealthWedge67] #1255854 06/23/12 04:28 AM 06/23/12 04:28 AM
Joined: May 2007 Posts: 174 Oklahoma H hemiiroc member
hemiiroc member H Joined: May 2007 Posts: 174 Oklahoma	Quote: I think you're doing something wrong. There's no way you're "out of adjustment" by that much. You said "1/4 turn of the crank"; You typically want to make adjustments @ 1/2 turns of the crank starting @ TDC. No ,you do it 1/4 turn at a time

Re: Valve adj question? [Re: hemiiroc] #1255855 06/23/12 10:30 AM 06/23/12 10:30 AM
Joined: Dec 2009 Posts: 161 SE Iowa J Jonnyj00 OP member
Jonnyj00 OP member J Joined: Dec 2009 Posts: 161 SE Iowa	I was doing it by one of those mopar performance charts you stick to your firewall and every single valve adjuster was dead on except both the intake and the exhaust on cylinders 7 amd 8 and they were way tight. I dont know if I have a valve guide seizing or a lifter bore that is rough or what just was hoping someone else had ran into the problem before. Thanks

Re: Valve adj question? [Re: Jonnyj00] #1255856 06/23/12 11:37 AM 06/23/12 11:37 AM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	Take the rocker shaft off and place a straight edge across the valve tips. Sounds like you may have tuliped the valves from too much heat. If they are that far gone you should be able to see it with just your eyes,looking across the tips. Keith www.dunnuckracing.com

Re: Valve adj question? [Re: Jonnyj00] #1255857 06/23/12 11:46 AM 06/23/12 11:46 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	I would think you messed up on the adjustment... if you had a guide hanging up that bad.. you would have blown up by now(valves crashing the pistons)... JMO

Re: Valve adj question? [Re: MR_P_BODY] #1255858 06/23/12 11:57 AM 06/23/12 11:57 AM
Joined: Dec 2009 Posts: 161 SE Iowa J Jonnyj00 OP member
Jonnyj00 OP member J Joined: Dec 2009 Posts: 161 SE Iowa	Im gonna try and run them again today you never know with it being at the track and it always seems like you forget something when your doing stuff at the track so I could have messed them up. If that dont pan out I am gonna take the rocker shafts off and try and inspect the valves and maybe turn the crank over a bit and use the pushrods to watch those back 4 lifters. Thanks again

Re: Valve adj question? [Re: Jonnyj00] #1255859 06/23/12 12:07 PM 06/23/12 12:07 PM
Joined: Jan 2003 Posts: 25,980 United Socialist States of Ame... T tboomer Too Many Posts
tboomer Too Many Posts T Joined: Jan 2003 Posts: 25,980 United Socialist States of Ame...	I just did mine on the 64..Yes,it is easy to get distracted! Every time my garge door is open,someone will show up to see what is going on or to raid my beer refrigerator! Lonemopar gave me a little tip on running valves...Everytime you have one done,put a mark on it with a sharpie..That really helps to let you know what is done! Good luck! Need your rear end checked out? Contact Grizzly!!

Re: Valve adj question? [Re: Jonnyj00] #1255860 06/23/12 12:13 PM 06/23/12 12:13 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Im gonna try and run them again today you never know with it being at the track and it always seems like you forget something when your doing stuff at the track so I could have messed them up. If that dont pan out I am gonna take the rocker shafts off and try and inspect the valves and maybe turn the crank over a bit and use the pushrods to watch those back 4 lifters. Thanks again Thats why I do the open/closed method.. if someone shows up I just say give me a few minutes so I can finish that side

Re: Valve adj question? [Re: Jonnyj00] #1255861 06/23/12 12:13 PM 06/23/12 12:13 PM
Joined: Feb 2011 Posts: 1,454 Glendora Ca. J Just-a-dart pro stock
Just-a-dart pro stock J Joined: Feb 2011 Posts: 1,454 Glendora Ca.	Did it run ok before the track valve adjustment? Did you have help and someone confused intake and exhaust? "Just a Bracket car dressed up like a streetcar"

Re: Valve adj question? [Re: tboomer] #1255862 06/23/12 12:14 PM 06/23/12 12:14 PM
Joined: Dec 2009 Posts: 161 SE Iowa J Jonnyj00 OP member
Jonnyj00 OP member J Joined: Dec 2009 Posts: 161 SE Iowa	Thats a good idea with marking the ones you have done. What are the rules with adjusting hot vs cold? If they are that far off I really dont wanna run it anymore than I have too.

Re: Valve adj question? [Re: Jonnyj00] #1255863 06/23/12 12:19 PM 06/23/12 12:19 PM
Joined: Jan 2003 Posts: 25,980 United Socialist States of Ame... T tboomer Too Many Posts
tboomer Too Many Posts T Joined: Jan 2003 Posts: 25,980 United Socialist States of Ame...	I think that on aluminum heads and an iron block,it is .004-.006 tighter than iron heads on an iron block...But I could be wrong... Need your rear end checked out? Contact Grizzly!!

Re: Valve adj question? [Re: tboomer] #1255864 06/23/12 12:26 PM 06/23/12 12:26 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: I think that on aluminum heads and an iron block,it is .004-.006 tighter than iron heads on an iron block...But I could be wrong... .004 works fine... I run a tighter lash than the spec card says... I dont like the big lash so I take out .010 extra

Re: Valve adj question? [Re: hemiiroc] #1255865 06/23/12 01:14 PM 06/23/12 01:14 PM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	Quote: Quote: I think you're doing something wrong. There's no way you're "out of adjustment" by that much. You said "1/4 turn of the crank"; You typically want to make adjustments @ 1/2 turns of the crank starting @ TDC. No ,you do it 1/4 turn at a time The way I've always done it (owned 2 solid lifter motors with no problems) is to start at TDC,and make 4 passes rotating 180 degrees between each pass. 180 degrees is half of a rotation of the crank. LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: Valve adj question? [Re: StealthWedge67] #1255866 06/23/12 09:43 PM 06/23/12 09:43 PM
Joined: Nov 2005 Posts: 808 mckinney texas S shoebox super stock
shoebox super stock S Joined: Nov 2005 Posts: 808 mckinney texas	I do one cyl at a time (in any order it doesn't matter) When the exh valve STARTS to open-set that cyl's intake Rotate that cyl- when that "just set" intake opens fully and JUST starts to close- set that exh 74 dart sport 440 www.Csucarbs.com

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