Found 7 rocker needle bearings in pushrod hole...
11-09-2009, 03:57 PM
#1
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Found 7 rocker needle bearings in pushrod hole... A couple questions, how many needle bearings total are in each rocker and if its more than 7, where should I search? Only one rocker arm was bad (rear most d/s), should I replace all of them? One side of the rocker arm seems to be missing a piece that the other side has...any thoughts as to where this piece went? Ill include pics.
11-09-2009, 04:06 PM
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A couple questions, how many needle bearings total are in each rocker and if its more than 7, where should I search? Only one rocker arm was bad (rear most d/s), should I replace all of them? One side of the rocker arm seems to be missing a piece that the other side has...any thoughts as to where this piece went? Ill include pics.
11-26-2009, 08:38 AM
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This happened to my 99 Firechicken. I found them when changing the oil. If memory serves me correctly, there are 33 needle bearing on each side of the rocker arm, so yes that means there are 66 needle bearing per rocker arm. Happy hunting. Most of mine came out the oil drain plug, but the remainder were hung up in the lifter buckets. My failure was similar to yours. The retaining cup failed on only one side and spewed them all into the motor. I got lucky, caught it very early and suffered no damage other than the rocker it self.
Some pics of my carnage http://www.cardomain.com/ride/2446297/2
FWIW, I abandoned the factory rocker all together and went with Comp Cams Pro Magnums, that was 15,000 miles about and no problems.
Chris
Some pics of my carnage http://www.cardomain.com/ride/2446297/2
FWIW, I abandoned the factory rocker all together and went with Comp Cams Pro Magnums, that was 15,000 miles about and no problems.
Chris
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11-26-2009, 06:22 PM
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12-06-2009, 08:13 PM
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Good luck!
12-07-2009, 06:03 AM
#12
Never had one fail before cam/spring swap. Not to say that they won't fail while stock. Just didn't happen until using higher lift, higher spring compression set up. Now, I upgrade rockers w/ any cam/spring change in order to avoid the problem of stock rocker retainer failure.
12-10-2009, 07:52 AM
#16
Holy Cow! I never realized LS motors had issues with the rocker needles coming out! I have 204,000 miles on my stock '99. Maybe it is time to replace the rockers. What is a decent set of stock replacement full roller rockers?
12-10-2009, 08:47 AM
#17
You can use any of them really. Scorpion rockers got hit with the failure stigma pretty hard a while back, I am sure they have since fixed it. They are going to be some of the more affordable ones. Then up to Yella Terra, which have been hit by the same stigma, but just like Scorp, resolved the issue. The ultralights are some of the most popular ones out there. For the price they are a good idea. Harland Sharp also has the stock rockers with upgraded trunions (the part that normally fails) and their own style of bolt on alum roller rockers. The alum rockers are natrually going to have a blukier body for good reason. Those do not need guide plates. If you upgrade to some of the others like the Comps, they will need guide plates. Then there are the shaft mount jobs. Such as Jesel and T&D. They are somewhat pricey and normally reserved for a fairly high strung build. Not your normal heads/cam combo. They will range in price from about 380 a set to over 600 for a set. They can come in ratios from stock 1.7 to 1.85. Be sure to check your springs to make sure they can handle what you are throwing at them as well.
Alot of people still prefer the stock rockers, for many reasons ranging from conspiracy theory to actual fact, but on some heads/valvetrains, have shown the tendency to produce odd geometry and make wear more apparent than a full roller style rocker arm. Honestly, either way, you cannot go wrong, because all of them are getting you peace of mind. As for bolt on performance......well at least they are getting you peace of mind.
Alot of people still prefer the stock rockers, for many reasons ranging from conspiracy theory to actual fact, but on some heads/valvetrains, have shown the tendency to produce odd geometry and make wear more apparent than a full roller style rocker arm. Honestly, either way, you cannot go wrong, because all of them are getting you peace of mind. As for bolt on performance......well at least they are getting you peace of mind.
12-10-2009, 02:50 PM
#18
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You can use any of them really. Scorpion rockers got hit with the failure stigma pretty hard a while back, I am sure they have since fixed it. They are going to be some of the more affordable ones. Then up to Yella Terra, which have been hit by the same stigma, but just like Scorp, resolved the issue. The ultralights are some of the most popular ones out there. For the price they are a good idea. Harland Sharp also has the stock rockers with upgraded trunions (the part that normally fails) and their own style of bolt on alum roller rockers. The alum rockers are natrually going to have a blukier body for good reason. Those do not need guide plates. If you upgrade to some of the others like the Comps, they will need guide plates. Then there are the shaft mount jobs. Such as Jesel and T&D. They are somewhat pricey and normally reserved for a fairly high strung build. Not your normal heads/cam combo. They will range in price from about 380 a set to over 600 for a set. They can come in ratios from stock 1.7 to 1.85. Be sure to check your springs to make sure they can handle what you are throwing at them as well.
Alot of people still prefer the stock rockers, for many reasons ranging from conspiracy theory to actual fact, but on some heads/valvetrains, have shown the tendency to produce odd geometry and make wear more apparent than a full roller style rocker arm. Honestly, either way, you cannot go wrong, because all of them are getting you peace of mind. As for bolt on performance......well at least they are getting you peace of mind.
Alot of people still prefer the stock rockers, for many reasons ranging from conspiracy theory to actual fact, but on some heads/valvetrains, have shown the tendency to produce odd geometry and make wear more apparent than a full roller style rocker arm. Honestly, either way, you cannot go wrong, because all of them are getting you peace of mind. As for bolt on performance......well at least they are getting you peace of mind.
LOL!
Unfortunately the only folks making much money on stock rockers are Sharp for their rebulid or kit (only $10 difference!) or Comp + someone cleaning, inspecting and installing the Comp bearings/shaft. The going rate for that service is well over $10/set of 16.
Jon
12-10-2009, 05:15 PM
#20
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I've seen pricing of $200/set of 16 for Comp upgrade kit installed on cleaned, inspected rockers provided by the customer.
Do you guys do installs of the Comp kit?
Jon