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On 29 Feb 2004 at 22:37, Russ Wolfe wrote: > On Sun, 2004-02-29 at 22:27, BOB2TYPE3S@aol.com wrote: > > Jim A. wrote: > > >That port was also re-introduced in 72-3 for the EGR valve that some > > >areas got. After that, replacement RHS heat exchangers came with > > >the port so that they could be a universal replacement. > > > > That explains why my right heat exchanger on my 71 has one. It came off a 73, > > but it had a block off plate too. > > > I think more RH manifolds will have it than don't have it. In the US, none of the 68-71 FI cars came with it. Only the X engines in 72 and the U5 engines in 73 came with it. So basically the engines that came with this "extra" port are the very early cars (single carb only), M & K single carb engines, and 72 X / 73 U5 engines (for the EGR valve.) (There were only ~4000 cars made with the X engines) None of the T, P, or U0 engines would have come with this port originally. If you were talking about 72-3 in the US , then I think they were still in the minority. I think this is still just AT type 3s sold in Cal, but it might have been 72 AT Cal cars plus all 73 ATs. I'm not sure whether non-Cal US AT type 3s got the EGR. Anyone out there got a 73 US AT without EGR? -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org