38 E Type Grand Touring Models Service Manual

Working with the Jaguar E-Type GT: A Reality Check

The 1963 to 1975 E-Type is one of the most replicated, modified, and misunderstanded cars in automotive history. When Jaguar returned to it recently with the E-Type 60 Limited Edition and the contemporary reinterpretations, the service documentation became a minefield of its own. You will find references scattered across owner's manuals, SVO bulletins, and aftermarket wiring diagrams that contradict each other. The 38 E Type Grand Touring Models Service Manual attempts to reconcile some of this, but it arrives with significant gaps that any mechanic working on these cars should know about before committing to it as a primary reference. I spent about three weeks trying to get a correctly spec'd ignition timing sequence right on a '71 V12 roadster using a mix of factory docs and what's available online. The problem wasn't that the information was wrong. It was that there were too many variants documented without clear demarcation between pre-XJS-instrument clusters and post-update dash layouts. I ended up tracing the live circuit with a multimeter because the diagrams assumed a version of the ignition module that only appeared in 1973 and later. That kind of guesswork is exactly what makes comprehensive service documentation valuable, and it's also where most available resources fall short.

Understanding the 38 E Type Grand Touring Models Service Manual

The manual covers the grand touring variants of the E-Type broadly, which includes the Series 1 3.8, Series 2, and Series 3 V12 configurations. It addresses engine overhaul procedures, electrical system diagnostics, carburetor tuning for the SU or early BOSCH setups depending on market and year, and suspension geometry specifications. The coverage tends to be strongest on mechanical components and weakest on electronic subsystems, which is typical for documentation aimed at a market that still mostly works these cars by feel and trial rather than by diagnostic computer. One thing most people miss when they start using this manual is that the torque specifications listed for certain cylinder head bolts vary between the 3.8-liter and the 5.3-liter engines even when the bolt size looks identical. I learned that the hard way on a head gasket replacement where I followed a single torque table for both engines. The 3.8 head bolts require a different sequence and a lower initial torque stage than the V12 versions. Using the wrong numbers can lead to warpage that isn't immediately obvious but will show up as a persistent oil leak around the front cover after a few hundred miles. The manual does list both, but they're on different pages and not cross-referenced in a way that makes it easy to tell which one applies to your build. The carburetor section is where the manual does its best work. Getting the mixture screws set right on a pair of SU HS6s is genuinely more art than science, but the manual gives you actual baseline numbers instead of the usual "adjust until it runs well" hand-waving. For a cold start, the recommendation is somewhere around one and a half turns out from fully seated, then fine-tune by ear while the engine reaches operating temperature. It's not fancy, but it's far more useful than the generic advice you find in forum posts.

What the Manual Gets Wrong or Leaves Out

The electrical section is the most problematic area. The wiring diagrams use color codes that don't match UK-spec cars sold in left-hand-drive markets. If you're working on an American-market 3.8 with a different instrument cluster wiring harness, the diagram colors will mislead you. I've seen at least two mechanics on forums report finding a ground wire labeled as a power feed because the manual used the British color convention where black is earth and brown is live, which is the opposite of what American-spec wiring uses. Another gap is the lack of coverage for anything beyond approximately 1974 on the V12 models. Cars built in 1975 and later had some updates to the fuel system, particularly around the early vapor lock issues that Jaguar was still working through. There's a brief note about this in the troubleshooting section, but no actual procedure for the revised fuel pump setup or the auxiliary vent lines that came with the later bodies. If you're working on a late-model V12, you're going to need supplemental information from elsewhere. The suspension geometry specs are reasonable but incomplete. The manual gives you camber and caster numbers, but it doesn't address the toe-in procedure for cars that have had their front subframe replaced or rebuilt. That's a common situation because those subframes are known to fatigue over time. The correct toe-in measurement can shift depending on whether you're using the original bushings or aftermarket polyurethane replacements, and the manual doesn't cover that variable at all. I typically measure toe by running a string line from wheel center to wheel center and adjusting the drag link until the front wheels are parallel within about two millimeters, then checking with actual toe plates to confirm. The manual's numbers are a starting point, not the final word.

Practical Approach to Using This Documentation

Start with the section that applies to your specific model year and market specification before jumping into any repair procedure. The E-Type changed more between 1965 and 1968 than most people realize, and the manual sometimes groups these years together in ways that hide important differences. A Series 1.5 with a fixed head is fundamentally different from a Series 1 with a detachable head, and the valve clearance procedure listed in the manual applies only to the detachable head version. If you follow it on a fixed head without checking, you'll end up adjusting the wrong components and wasting an afternoon. Keep a separate notebook or digital file for recording actual measurements you take during your own work. The manual's specifications are generally accurate, but every E-Type has accumulated some variation over sixty years. Bushings compress, subframes settle, and previous owners make changes that aren't documented anywhere. If your camber reading is off by a degree from the spec, that's not necessarily a problem with the manual. It might just be the car. Knowing the difference between a specification error and a real mechanical issue is the skill that takes time to develop. When you're doing engine work, the most useful part of the manual is the timing and ignition section for the 3.8-liter straight-six. Getting the distributor timing right on these engines matters more than most people expect. The standard procedure is to set the timing light to approximately eight degrees before top dead center at idle speed, then verify by listening for smooth operation across the rev range. If the engine hesitates at three thousand RPM and above, the timing is likely advanced too far, even if the light shows the correct number. The manual mentions this, but not prominently enough that most people read it before turning the distributor.

For brake work, the manual covers the standard hydraulic system adequately but doesn't address cars that have been converted to disc brakes on the rear. That conversion is extremely common on restored E-Types, and the brake bleeding procedure changes significantly when you have a dual-circuit master cylinder installed. The dual-circuit setup requires a specific bleeding order that the manual doesn't always make clear, especially on cars where the original system was already partially upgraded by a previous owner. I typically bleed the front circuits first, then the rear, using a vacuum bleeder and checking the pedal feel after each circuit to make sure no air is trapped in the dual-circuit split.

Where to Find Current Versions and Supporting Materials

The most reliable versions of the 38 E Type Grand Touring Models Service Manual circulate through specialized Jaguar forums and enthusiast clubs. The Haynes and Bentley publications cover these cars too, but they often use older source material that predates some of the corrections and revisions that appeared in later Jaguar bulletins. If you're doing serious work, it makes sense to compare at least two sources before committing to a procedure, especially for anything involving the fuel system or electrical connections. Jaguar's own SVO division publishes technical bulletins that sometimes clarify ambiguities in the general service literature. These aren't always easy to track down, but they're worth searching for when you encounter a procedure that doesn't seem to match what you're seeing on the car. The bulletin numbering system is inconsistent, and some of them are only available through dealer networks or at Jaguar club events, so don't assume that an online search will turn everything up. There are also digitized versions of the original factory workshop manuals that predate the Grand Touring designation. These can be useful for understanding the baseline engineering, but they cover cars that are substantially different from the later grand touring variants. Use them as supplementary reading rather than as a replacement for the current documentation, and always verify that any procedure you're following applies to your specific model year and specification. The differences between a 1964 Series 1 coupe and a 1972 Series 2 roadster are large enough that mixing up procedures between them will cause problems.

The manual is a solid reference if you approach it with the understanding that no single document covers every variation of these cars. The E-Type has been in production long enough, in enough configurations, and through enough regulatory environments that any service manual is going to have blind spots. The ones I've found useful are the ones where I keep track of which sections apply to my specific car and which sections I need to supplement with other sources. That's the only way to avoid the kind of confusion that leads to expensive mistakes.