I have a 1993 cobra longblock in my car and it came with 1.7 roller rockers from comp cams i just now got 4000 or so miles on the motor and one of the rockers on the driverside seems to knock louder than the rest at idle so i am guna re-torque everything back down but do not know the proper procedure for doing this so if anyone can help me i would greatly appreciate it.
Re-torquing roller rockers need help!!!!
b-on-b 5.0
1 - 11 of 11 Posts
Joined
·
348 Posts
I have a 1993 cobra longblock in my car and it came with 1.7 roller rockers from comp cams i just now got 4000 or so miles on the motor and one of the rockers on the driverside seems to knock louder than the rest at idle so i am guna re-torque everything back down but do not know the proper procedure for doing this so if anyone can help me i would greatly appreciate it.
Joined
·
348 Posts
so i dont need to make sure any of the valves on the motor are closed when i tighten each one cuz i herd u have to make sure that it is on the flatest part of the cam when i tighten them??????
Joined
·
375 Posts
that would be the logical way to do it
Joined
·
348 Posts
ok you dont think it is that bad of a problem then? becuz one of my buddies builds engines for street/strip cars and said it might have just lossened up from the facotry i am just guna re-torque them anyways to be safe...idk this guy knows his **** and the motors he build are lagit.....his car is in the low ten's at about 6,000 feet so idk i would just guess it was that i mean everything on the motor is new u really think there is a collapsed lifter or flat spot?
Joined
·
4,838 Posts
If an adjustable valve train rocker backs off it will make noise. If a pedestal mount rocker backs off enough to make noise the bolt will be completely loose and the rocker would fall off or break the bolt. Pedestal rockers do not adjust, they are either bolted down or not.
Possible sources of ticking noise
1) leaking header gasket
2) sticking injector
3) worn out roller on the lifter or rocker
4) misadjusted valve train (yours is nonadjustable, so if it came out of adjustment there is a underlying issue)
5) sticking valve guide
6) burned valve
7) collapsed lifter
8) bent pushrod
Possible sources of ticking noise
1) leaking header gasket
2) sticking injector
3) worn out roller on the lifter or rocker
4) misadjusted valve train (yours is nonadjustable, so if it came out of adjustment there is a underlying issue)
5) sticking valve guide
6) burned valve
7) collapsed lifter
8) bent pushrod
Joined
·
348 Posts
okm thanx i appreciate it yea i just talked to him and he said that its a possibilty that i have an exhaust leak but he said the sound is too minor to be a collapsed lifter or a flat spot i mean it sounds like a lifter to me but am guna check my header bolts and i am replacing the injectors so that is taken care of but maybe i will check for a leak first before tearing eveything apart
Joined
·
8,096 Posts
info isnt needed now, but now, set torque wrench to 18ft lbs and turn till it clicks, end of story
1 - 11 of 11 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
