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Broke 2nd set of Rocker Arms?

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Old Oct 30, 2007 | 11:28 PM
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Default Broke 2nd set of Rocker Arms?

Went to to change my oil, and found my drain plug full of needle bearings again. This is my 2nd set to come apart within 6 months. Car is not daily driven. Anyone got any ideas for me? Its a F13 cam with PRC dual springs and STOCK length hardened pushrods. I plan to dig into it this weekend so I dont know any damage done yet. I did hit the rev limiter hard in 3rd a little while back. Car doesnt seem to be missing or even noisy. Last time it was cylinder #7 that came apart. Could I have collasped lifter maybe?
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Old Oct 31, 2007 | 05:10 AM
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Did you replace them all the first time or only those that spewed needles? The stockers were designed for much lower spring loads, so if you have miles on them likely no surprise that they are doing this.

Last edited by vettenuts; Oct 31, 2007 at 05:21 PM.
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Old Oct 31, 2007 | 09:43 AM
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i am doing just fine with my stock ones with a MS4 and dual springs. they also have 60k miles. its hard to tell why, but i wouldn't think its a lifter...
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Old Oct 31, 2007 | 09:52 AM
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If I was you I'd send a extra set of stockers in to Harland Sharp & get them rebuilt/reinforced. It's only like $225 + shipping both ways. Well worth the extra $$.
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Old Oct 31, 2007 | 12:55 PM
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your stock length push rods could be the culprit with that futral cam. Do you have excessive valve train noise? Maybe you should go with 7.425" PRs
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Old Oct 31, 2007 | 06:48 PM
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Originally Posted by socmguy
your stock length push rods could be the culprit with that futral cam. Do you have excessive valve train noise? Maybe you should go with 7.425" PRs
Im gonna check for this now. Gotta borrow a pushrod checker. Valvetrain doesnt seem to be any louder than always

Originally Posted by vettenuts
Did you replace them all the first time or only those that spewed needles? The stockers were designed for much lower spring loads, so if you have miles on them likely no surprise that they are doing this.
I replaced all if them with the newer updated ones, they were used though
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Old Oct 31, 2007 | 10:52 PM
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send them to harland sharp to get them rebuilt. they put new bearings in them, and modify them to put c clips on the end that way they wont come out again. Thats what i did when mine spilled. been in for 2 years now no problems. dont believe i ever will have problems with them again.
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