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914World.com _ 914World Garage _ Broken Rocker Arm
Posted by: d7n7master Oct 17 2010, 03:19 PM
Posted by: jsayre914 Oct 17 2010, 04:03 PM
That sucks 
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Posted by: McMark Oct 17 2010, 06:08 PM
This thread is MORE than worthless without pics. 
Posted by: Gint Oct 17 2010, 06:13 PM
Posted by: jcambo7 Oct 17 2010, 06:24 PM
That sucks
Did someone say pitchers!
Posted by: d7n7master Oct 17 2010, 08:31 PM
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Posted by: Sleepin Oct 17 2010, 08:34 PM
That is broke.....looks like it will buff right out though!
Posted by: brant Oct 17 2010, 08:35 PM
ouch...
was it an over -rev?
what happened
Posted by: Jake Raby Oct 17 2010, 08:35 PM
I'd be willing to bet that your initial issue was a seized valve.. Breaking stock rockers is a VERY hard thing to do!
Since you also lost the retainer I'd say you need to do a leak down test to ensure you don't have secondary collateral damage.
Posted by: d7n7master Oct 17 2010, 08:43 PM
I'd be willing to bet that your initial issue was a seized valve.. Breaking stock rockers is a VERY hard thing to do!
Since you also lost the retainer I'd say you need to do a leak down test to ensure you don't have secondary collateral damage.
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Less than 500 miles. & yes, I may have over-rev'ed it a bit...
Seized valve? Ohh boy!
Good idea Jake. I'll do the leak down test. thx.
Posted by: messix Oct 17 2010, 08:46 PM
JB weld will fix that!!! 
Posted by: brp986s Oct 17 2010, 09:21 PM
Since you also lost the retainer I'd say you need to do a leak down test to ensure you don't have secondary collateral damage.
"secondary collateral damage"? Keep an eye on on your bank accounts - make note of any inordinate leakage.
Posted by: Jake Raby Oct 17 2010, 09:29 PM
I'd not be over-revving an engine with those stock retainers..
Looks like you better nupgrade the valve train before you have a nasty experience...
To break a rocker at the adjuster end is very difficult, most break on the opposite end where valve spring tensions are multiplied by rocker arm ratio.
Posted by: Don M Oct 18 2010, 07:05 AM
often broken rockers are a warning sign of loss of control of valve train, most often due to insufficiant spring pressure for the demands made on the engine. look into this aspect and cure it if necessary, left unchecked it's likely a dropped valve is in your future.
Posted by: d7n7master Nov 2 2010, 01:02 AM
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The Teardown Begins;
Posted by: d7n7master Nov 4 2010, 11:40 AM
It seemed like a good idea to tear down my 'old' engine for the experience before I tear down my New engine that I found the broken rocker arm in.
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It's my 1st Type IV Tear-Down usinf Jake's Type IV video as my guide.
Tell me whatcha' think...
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Attached image(s)
Posted by: d7n7master Nov 4 2010, 11:43 AM
More pics:
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Posted by: Marty Yeoman Nov 4 2010, 01:25 PM
It looks like that case is toast.
The sump screen bolt has finished it off. 
Posted by: d7n7master Nov 4 2010, 02:52 PM
It looks like that case is toast.
The sump screen bolt has finished it off.
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I agree. Wonder how much scrap aluminum goes for by the pound??
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