Talk:Jaguar AJ6 engine

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Is this the same as Jaguar AJ-V6 engine?

Nope, the Jaguar AJ6 engine is a straight-6 developed by Jaguar. The Jaguar AJ-V6 engine is a V6 based on the Ford Duratec 30. --SFoskett 20:56, Oct 5, 2004 (UTC)

[edit] Corrections which need to be made

The article is inaccurate in its description of the AJ6 engines.

(1) The original engines were the DOHC 3.6 (which debuted on the XJ-S in ~1983 and was the used in the new XJ40 from its launch in 1986) and the SOHC 2.9 (which was used for the entry-level XJ6 in Britain and Europe - but rarely, if ever, seen in models exported to the US).

(2). The DOHC 3.6 was revised and enlarged to 4.0 in 1990. It is still essentially an "AJ6", however. This was, as per usual, offered for the XJ-S before it was built into the XJ40 saloon.

(3). The SOHC 2.9, which was generally considered somewhat underpowered for such a large car, was discontinued in 1992 and replaced with a DOHC 3.2 (essentially identical to the DOHC 4.0).

(4). Following the launch of the Aston Martin DB7 - a car based on Jaguar's original replacement platform for the XJ-S (which was discarded in favour of the XK8 based on the X300 platform, note the traditional Jaguar 6-dial dashboard and ski-slope) - the Jaguar AJ6 was used by Aston Martin as well (a tweaked and supercharged 3.2).

(5). Both the 3.2 and 4.0 were substantially revised for the 1994 launch of the new X300 saloon. *These* are the "AJ16" engines, both now featuring coil-on-plug distributorless ignition, new engine management systems, magnesium alloy heads, etc.

(6). A supercharged version of the new AJ16 DOHC 4.0 was used on the X300 XJR.

(7). The AJ16 was discontinued with the launch of the AJ-V8 (XK8 and XJ8 in 1996/7).

OK, I've incorporated this into the article. --SFoskett 14:48, 12 July 2006 (UTC)

Hi there - Just to let you know, the 2.9 SOHC is basically a redevelopment of the old XK engine which was used in the 2.8l series 3 XJ6. It was not a new engine. It is cam chain driven and uses a breakerless style electronic ignition. It does not have the more advanced system that the other AJ6's had. -Ross 82.46.169.124 15:41, 14 January 2007 (UTC)