106°
BEFORE · 20 N·m + ANGLE
Business being good, V6s crossed the Atlantic: the Eagle Premier carries the 150 bhp 3.0-litre PRV in its most American form — code Z7X 711, mounted transversely, MPI multipoint injection, hydraulic lash adjusters. The American chapter of the Douvrin V6 saloons, and the best documented: seven excerpts from the 1990 service manual and the Chrysler booklet are in the Library.
The Chrysler training booklet spells it out: ENGINE TYPE Z7X, ENGINE SUFFIX 711. The American PRV is therefore a Z7X — the same family as the Alpine A610's Z7X-744 and the Safrane Biturbo's Z7X 726 — and Eagle never struck a code of its own. A 90° V6 of 3.0 litres, 93 × 73 mm bore and stroke, 2,975 cc, 9.3 compression, 150 bhp at 5,000 rpm and 232 N·m at 3,750, firing order 1-6-3-5-2-4 — mounted transversely and fed by MPI multipoint injection, while Europe still mounts it lengthways. Aluminium block and heads, forged crankshaft with 30° crankpin offset: it is the offset-crankpin version, with even firing intervals, and its rockers carry hydraulic lash adjusters — no valve clearance to set, the only such case in the Library.
Engine number 89616 splits production in two, and it is the number to read before ordering any top-end part. Before: liner protrusion 0.13 to 0.20 mm, 1.70 mm head gasket, 20 N·m + 106° torque, mandatory retorque after running-in — the only such procedure in the whole Library. From 89616: protrusion 0.05 to 0.12 mm, 1.45 mm gasket, 40 N·m + 180°, no retorque, and a different rear crankshaft seal. The manual adds the essential: old and new liners are not interchangeable.
The number is read on the identification label, on the right of the block, under the exhaust manifold — first six characters Z7X711, then the build sequence. The seven excerpts are in the Library.
The Eagle / Renault Medallion gets the same 150 bhp Z7X 711; the Dodge Monaco (1990), the Premier's sister under the skin, carries the Z7X 715, the other American variant. All three share the same transverse architecture with electronic injection.
Two singularities the manuals document: the American 3.0 L has no knock sensor — despite an isolated sentence in the injection chapter, it appears neither in the ECU's inputs, nor in its pin-out, nor in the procedures — and the radiator has no cap: pressurisation happens at the expansion tank, the circuit's only cap, whose valve opens between 110 and 124 kPa.
Unleaded mandatory, filler neck sized for unleaded nozzles only; ethanol accepted up to 10 %, MTBE up to 15 %, methanol forbidden — the manual puts it in capitals. And America's most famous PRV remains the DeLorean DMC-12, which had made the V6 a movie star ten years earlier.
Eight answers drawn from the 1990 service manual and the overhaul booklet — the FAQ has nearly a hundred on the Eagle Premier.
The 1990 service manual in six excerpts and the Chrysler overhaul booklet, readable page by page: 1990 service manual — group 9, engines · Chrysler booklet — 3.0 L engine overhaul · 1990 service manual — MPI multipoint injection · 1990 service manual — cooling · 1990 service manual — ignition · 1990 service manual — manifolds and exhaust · 1990 service manual — emissions
The Eagle Premier has its own section on the forum — presentations, restorations, questions to members who drive one. Eagle Premier section →
Z7X — from 150 to 268 bhp, code by code — and the two American sisters.