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02-06-2014, 07:23 PM
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Fordluva
Join Date: Dec 2010
Posts: 105
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Hi all In the process of changing the soggy stock valve springs in the 200kw xr8 and have noticed that the exhausts have valve rotators and my replacement springs and retainers are the non rotating type. Am I setting myself up for burnt exhaust valves/seats by not using them?.
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02-06-2014, 09:03 PM
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FF.Com.Au Hardcore
Join Date: Dec 2004
Location: Perth NoR
Posts: 5,969
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No not really... The rotators are there for the truck applications. What springs and retainers are you replacing them with? Be aware that due to the rotators on the exhaust valve there are two different installed heights on the GT40Ps.
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08-06-2014, 10:29 PM
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AU II XR8
Join Date: Mar 2006
Location: melbourne
Posts: 978
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Is this normal for the 200kw engines to have rotators? I'm also looking at replacing the valve sprigs in mine.
__________________
AU XR8 II ute XD FAIRMONT GHIA 302 XA FAIRMONT 302 TOPLOADER |
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08-06-2014, 11:24 PM
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Regular Member
Join Date: Nov 2008
Location: Perth
Posts: 191
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I am doing the same to my xr8 (200kw) Ute aswell. I am also replacing the valve stem seals aswell since it has almost done 240,000 km.
Last edited by ashebxr8; 02-02-2015 at 11:39 PM. |
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09-06-2014, 11:04 AM
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Fordluva
Join Date: Dec 2010
Posts: 105
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Yea have done mine and it revs to 5000rpm now without all the valve train noise but I'm still looking for a clean 6000.Time for a dyno tune I think.
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09-06-2014, 11:07 AM
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Fordluva
Join Date: Dec 2010
Posts: 105
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If I'm not using the rotators anymore and using chrome moly retainers, the springs would be the same heights wouldn't they?
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09-06-2014, 05:01 PM
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#7 | |||
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AU DIE HARD
  
Join Date: Nov 2005
Location: Between 2nd and 5th gear
Posts: 5,073
 
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Open the packet of retainers first and see if they are all the same,they normally have a flatish and a deeper one. flats are inlet from memory if they are all the same check the collet lines on the valves and see if there the same height from inlet to Zorst
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........Age and treachery will ALWAYS overcome youth and skill....... CORTINA 250 2V POWER soon to be AUXR8 Windsor pwrd .............WINDSOR WARLORD WHO CARRIES THE CLEVO MAFIA AND BROKEN BOSSES... .........................  .........................Quote:
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10-06-2014, 02:47 PM
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#8 | ||
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Fordluva
Join Date: Dec 2010
Posts: 105
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the exhausts collet grooves are lower.
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5.0 heads
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