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EF normal and Tickford Valves 

 

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 Post subject: EF normal and Tickford Valves
Posted: Thu Sep 15, 2005 8:19 pm 
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I was trying to find some valves for Tim (rapier) at work today and what I found on the screen was that we have Standard and oversized +005 for both the intake and exhaust (by Nason). So would the XR6 Tickford head (94DA I think he told me) take the standard intake ones and the oversized exhaust ones? THere was no mention on them about bigger ones for Tickford cars and I didn't have time to ring em up and ask today...

 

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Posted: Thu Sep 15, 2005 11:18 pm 
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the tickford heads had 2mm larger exhaust valves (0.080thou)

 

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Posted: Fri Sep 16, 2005 12:51 am 
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also the bigger valves would be for recoed heads that needed new valves/and were the valve seat had been damaged and needed enlarging


and was it only the AUXR6 that had the bigger valves on the heads?

 

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Posted: Fri Sep 16, 2005 1:18 am 
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thanks scotty you beat me to posting about this, i kinda mentioned it to waggin on msn to get oversized valves i would need to get the seats redone $$$$ so i wanna standard set, but the xr exhaust vales are 2mm wider so they are different to stock.

oh and the heads not a 94da its a 94dt i think the da was a standard head
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Posted: Fri Sep 16, 2005 1:25 am 
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Disco Frank wrote:
and was it only the AUXR6 that had the bigger valves on the heads?


Au's got 41mm exhaust valves standard

E-series XR6's also got 41's, but thicker valve stems

Other e-series got 39's

 

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Posted: Sat Sep 17, 2005 8:27 pm 
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Well I looked up teh valves for EF, EL and AU 4.0L I6's today, and they only list standard and oversized +005.
EF and EL seem to have used the same ones with a stem size of 8.68MM (part number IN3006 and EX3007).
EL hybrids and AU's stem size 6.988mm for the inlet valve (IN3008 EX3007).
But then the EL hybrid and AU exhaust valves are different part numbers? (EL Hyrbid - 6.98MM - EX3009, and AU EX3231).

I dunno, I can ring Nason for you and find out during the week Tim.

 

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Posted: Sun Sep 18, 2005 5:16 pm 
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cheers mate my just use the valves ive got be easier, as far as i know if you get new valves you have to get the seats re-done to much work involved
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Posted: Sun Sep 18, 2005 6:46 pm 
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twr7cx wrote:
But then the EL hybrid and AU exhaust valves are different part numbers? (EL Hyrbid - 6.98MM - EX3009, and AU EX3231).


That may very well explain, why even AU cams won't work properly in an EL Hybrid.

 

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