Rocker Arm Mounts
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Laughing Gas
Joined: Jul 2008
Posts: 772
Likes: 27
From: Brighton CO.
I just pulled off my rocker arms to look at a couple of things. I don't remember the wear spots on the sides of the rocker arms the last time I had them off when I replaced the injector cups. Both rockers have the same wear spots on the inside.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Allegedly - that's not a good sign... but it has not been verified - so don't order up 16 new ones just yet. I won't have an answer on Stinky until this weekend, sorry.
I would think that's normal wear after all those miles because of the lock springs. The material I read warned to look for this, but I suspect the information was referring to a time when these trucks were new. Premature wear would have been an issue back then.
I would think that's normal wear after all those miles because of the lock springs. The material I read warned to look for this, but I suspect the information was referring to a time when these trucks were new. Premature wear would have been an issue back then.
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Laughing Gas
Joined: Jul 2008
Posts: 772
Likes: 27
From: Brighton CO.
Hello,
Right now IDK. I didn't get a chance to pull any more of them off. Hopefully I will tonight when I get home. I know it doesn't look real bad at this point but I want to avoid any damage if I can. The push rods do not appear to be bent. It they are it is not very visible.
Right now IDK. I didn't get a chance to pull any more of them off. Hopefully I will tonight when I get home. I know it doesn't look real bad at this point but I want to avoid any damage if I can. The push rods do not appear to be bent. It they are it is not very visible.
Postmaster
Joined: Apr 2012
Posts: 2,613
Likes: 8
From: North Georgia
Brice,
The wear shown in the picture you posted is negligible.
Places to be concerned about wear on one of these rocker arms would be the pushrod cups, and valve stem contact points. Even then, unless there is major gouging evident I would just polish and not give it a 2nd thought. The tolerance for stock a application build is fairly laxed. Can you snap a couple pics of the cup and stem contactor for us?
The wear shown in the picture you posted is negligible.
Places to be concerned about wear on one of these rocker arms would be the pushrod cups, and valve stem contact points. Even then, unless there is major gouging evident I would just polish and not give it a 2nd thought. The tolerance for stock a application build is fairly laxed. Can you snap a couple pics of the cup and stem contactor for us?
Lead Driver
Joined: Jun 2004
Posts: 6,327
Likes: 585
From: Amarillo, TEXAS!
I agree with Chris. I wouldn't be at all concerned with that wear as long as the push rods are within spec. Roll them on a hard flat surface to check for straightness. IIRC, the spec for straightness on a new push rod is 0.020" total indicated runout, so a used one less than that is just fine. If a 0.010" feeler will fit between the push rod and a known flat surface, it's out of spec.
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Laughing Gas
Joined: Jul 2008
Posts: 772
Likes: 27
From: Brighton CO.
Christof13t,
You bet,
I should be able to tonight sometime.
I understand what you are saying, I'm not overly concerned with the rubs yet. I'm just wondering why.
You bet,
I should be able to tonight sometime.
I understand what you are saying, I'm not overly concerned with the rubs yet. I'm just wondering why.
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