Diesel heads

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vanny
Posts: 767
Joined: 16 May 2002, 21:08
x 1

Diesel heads

Unread post by vanny »

Simple question, are the XUD7T and XUD9Te heads the same? i cant see any difference but figure i best check and see if anyone knows anything i dont?
citronut
Posts: 10937
Joined: 29 Apr 2005, 00:46
x 94

Unread post by citronut »

make sure the innlet and outlet ports are the same shape as on the head your replaceing,otherwisemanifolds wont line up properly
regards malcolm
Peter.N.
Moderating Team
Posts: 11761
Joined: 02 Apr 2005, 16:11
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Unread post by Peter.N. »

The 2.2 and 2.5 diesel heads on the CX were almost identical,turbo or non turbo, if thats any help!
jeremy
Posts: 3959
Joined: 20 Oct 2002, 16:00
x 2

Unread post by jeremy »

I have heard it said that later heads were modified to make them less prone to cracking. I don't know any more.
Jeremy
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fastandfurryous
Posts: 1389
Joined: 07 Jul 2004, 17:57
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Unread post by fastandfurryous »

The aluminium alloy used to cast the 1.9TD heads is a different (somewhat stronger) grade. I believe the material used for the exhaust valves is an upgrade too. (both from the 1.9D engines and the 1.7TD)
Dimensionally, they are indeed identical. (except the camshaft output drive that is)