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snapped rocker arm! 

 

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 Post subject: snapped rocker arm!
Posted: Mon Jan 08, 2007 10:24 pm 
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hey all

well, still got 0kms on the rebuilt motor and i've already broken it lol

so, its started every time, seems to have a missfire & a bit rough, as expected from an agressive cam (Rspec4) and new engine - however, it decided to shatter a rocker arm this afternoon :?

any thoughts? was only the one rocker arm (last intake valve), spring & valve appear fine. doubtful its PV, am using the machined RPD rocker gear (arms are std) - so am open to thoughts! car was not being revved at the time, was attempting to idle...

cheers :)

 

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Posted: Mon Jan 08, 2007 10:33 pm 
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happened to me straight after i put a cam in once, replaced arm, re attached rocker gear fone since
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Posted: Mon Jan 08, 2007 11:06 pm 
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hey fraser i was going to do this for u!

ohh well

meh replace the arm start it up :)

 

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Posted: Mon Jan 08, 2007 11:08 pm 
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Where did the rocker break, if it's at the tip where the HLA sits this can happen when tightening the rocker gear down, and a HLA goes in on an angle fracturing rocker tip and breaking at a later date. Know this from experience. As Rapier said put a new rocker arm on and its fixed, hope it's that easy..

 

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Posted: Tue Jan 09, 2007 12:02 am 
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yeah initially was a bit concerned it may have been something more serious, however i'll swap rocker arms over tomorrow, start it up & try find the missfire!

 

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Posted: Tue Jan 09, 2007 12:22 pm 
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Its Franks fault
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Posted: Tue Jan 09, 2007 6:28 pm 
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im with the rest, replace the arm an i recon it should be fine


when i replaced my cam, i thought id check out the arms first an just about all 12 were cracked im surprised they didnt snap, so grabbed the whole lot off another head an shes good.. need some more shims but

 

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Posted: Tue Jan 09, 2007 7:57 pm 
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bowsaw wrote:
Its Franks fault


nar i blame fraser! :)

 

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Posted: Tue Jan 09, 2007 8:55 pm 
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come on fwase hurry up and swap them rocker arms...

 

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Posted: Tue Jan 09, 2007 9:17 pm 
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swapped, just need to go rebolt down the rocker gear, check leads & start it up!

 

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Posted: Tue Jan 09, 2007 10:11 pm 
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gay!

got spark, but on the wrong side of the car :?

help!

 

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Posted: Tue Jan 09, 2007 10:15 pm 
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insulation? sry had to say it :D or turn ur engine the other way round ;). anyway good luck with that, maby had too much fuel in and ignited it all :D

 

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Posted: Tue Jan 09, 2007 10:32 pm 
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yer dunno fraser

well teh car still turns over so thats a good sign i hope

 

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Posted: Tue Jan 09, 2007 10:33 pm 
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heap of crap car! want to get the fricken thing driving! :evil:

 

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Posted: Tue Jan 09, 2007 11:22 pm 
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put new leads on buddy.. and while ur at it change the number 1 injector to number 2 to see if the cold pipe moves.

 

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