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Solid Lifter Cam "Clacking" #468679 09/15/09 08:16 AM 09/15/09 08:16 AM
Joined: Jan 2003 Posts: 4,283 Danville, NH M Mopar_Mike OP master
Mopar_Mike OP master M Joined: Jan 2003 Posts: 4,283 Danville, NH	I recently broke in my first solid lifter camshaft (Comp Cams .520 244/252) and using Crane 1.5 Gold rockers. All set up by engine builder. I hear a lot of "clacking" going on in the engine. I broke in the cam with the proper oil/additives and all went well. Changed the oil after break in with Valvoline Racing 20/50 racing oil. The engine seems fine, has plenty of power, just is a little noisy. Is this to be expected with solid lifter cams? Thanks. RS23L7 4-Speed

Re: Solid Lifter Cam "Clacking" [Re: Mopar_Mike] #468680 09/15/09 08:58 AM 09/15/09 08:58 AM
A Anonymous Unregistered
Anonymous Unregistered A	solid lifter cams and their valvetrains are noisy by nature. if in doubt about anything, check the valve lash to be sure all is okay internally.

Re: Solid Lifter Cam "Clacking" [Re: Mopar_Mike] #468681 09/15/09 12:52 PM 09/15/09 12:52 PM
Joined: Aug 2003 Posts: 43,176 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,176 Bend,OR USA	Does it get quieter when it warms up? Did you reset the lash when it warmed up? What is the valve lash set at now? I ans well as many other racers and engine builders will tighten the lash up some to see if the motor will make more power as well as that will make them quieter, sometimes depending on the cam design and rockers used My street motor with a Comp Cams solid roller cam and harland Sharp rocker arms do not calack set at .024 intake and .024 exhaust hot Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Solid Lifter Cam "Clacking" [Re: Cab_Burge] #468682 09/15/09 01:06 PM 09/15/09 01:06 PM
Joined: Jan 2003 Posts: 4,283 Danville, NH M Mopar_Mike OP master
Mopar_Mike OP master M Joined: Jan 2003 Posts: 4,283 Danville, NH	Quote: Does it get quieter when it warms up? Did you reset the lash when it warmed up? What is the valve lash set at now? I ans well as many other racers and engine builders will tighten the lash up some to see if the motor will make more power as well as that will make them quieter, sometimes depending on the cam design and rockers used My street motor with a Comp Cams solid roller cam and harland Sharp rocker arms do not calack set at .024 intake and .024 exhaust hot When I picked up the engine the builder told me the lash was set at .018 This would be cold. I have not checked it hot. I would say it gets louder when it warms up..? I do not have the cam card, but I believe it suggests .016-.018 lash. Last edited by Mopar_Mike; 09/15/09 01:06 PM. RS23L7 4-Speed

Re: Solid Lifter Cam "Clacking" [Re: Mopar_Mike] #468683 09/15/09 01:31 PM 09/15/09 01:31 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	Quote: I do not have the cam card, but I believe it suggests .016-.018 lash. This sound right... Brand: COMP Cams Product Line: COMP Cams Xtreme Energy Camshafts Part Number: CCA-21-232-4 Cam Style: Mechanical flat tappet Basic Operating RPM Range: 2,500-6,500 Intake Duration at 050 inch Lift: 244 Exhaust Duration at 050 inch Lift: 252 Duration at 050 inch Lift: 244 int./252 exh. Advertised Intake Duration: 282 Advertised Exhaust Duration: 290 Advertised Duration: 282 int./290 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.520 in. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.540 in. Valve Lift with Factory Rocker Arm Ratio: 0.520 int./0.540 exh. lift Lobe Separation (degrees): 110 Camshaft Gear Attachment: 1-bolt Intake Valve Lash: 0.016 in. Exhaust Valve Lash: 0.018 in. Computer Controlled Compatible: No Grind Number: CRB XE282S-10

Re: Solid Lifter Cam "Clacking" [Re: Mopar_Mike] #468684 09/15/09 01:37 PM 09/15/09 01:37 PM
Joined: Aug 2003 Posts: 43,176 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,176 Bend,OR USA	Quote: Quote: Does it get quieter when it warms up? Did you reset the lash when it warmed up? What is the valve lash set at now? I ans well as many other racers and engine builders will tighten the lash up some to see if the motor will make more power as well as that will make them quieter, sometimes depending on the cam design and rockers used My street motor with a Comp Cams solid roller cam and harland Sharp rocker arms do not calack set at .024 intake and .024 exhaust hot When I picked up the engine the builder told me the lash was set at .018 This would be cold. I have not checked it hot. I would say it gets louder when it warms up..? I do not have the cam card, but I believe it suggests .016-.018 lash. It is time to check it now before it has a chance to get worse, do you know how to set the lash and the proper procedure to do it? If not say so and we will help you do that, it is necessary to check the lash hot because that is the way the motor runs 95% of the time Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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