Above: Our well-known V8 Composite Head Gasket set with Head Bolts (STC4082HBK) for standard Model soil Rovers and range Rovers

Classic soil Rover & range Rover V8s – Brief history and Models:

This information uses to land Rovers using the above Rover V8, a architecture descended native the Buick 215 V8 the the 1960s. Basic Motors marketed the architecture to Rover in the late 1960s, having had actually too many worries producing that in the volumes they needed. Rover took full advantage of its low weight and also high torque, and also turned it into a British symbol over the comes fifty years. The last factory Rover V8 would certainly come off the line v the last Discovery series II in 2004. In America, it found a home in the engine bay of variety Rover Classics, P38 selection Rovers, discovery I and also Discovery series II, and also all phibìc American Specification (NAS) Defender 90 and NAS Defender 110 models. Castle are additionally found in some rest-of-world imported Defender models.

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They were offered in a selection of sizes. The original Buick-derived design was a 3.5-liter engine. In the so late 1980s, it was modified right into a 3.9-liter variant. A rather rare 4.2-liter different is found in selection Rover classic County LWB models. In 1996, 4.0 and also 4.6-liter variants appeared, which would certainly run the end the Rover V8’s lifespan. Early on models (none official imported to America) were carbureted, while later on models used a variety of fuel injection systems: the Lucas “Hotwire” 13CU/14CU/14CUX equipment (1987-1995), the GEMS device (1996-1999), and also the BOSCH mechanism (2000-2004). BOSCH vs. Jewel - Not sure which construction you have? We have actually a quick video identification guide HERE or examine out our outline video:


So… if you think the the time has actually come because that your classic V8 soil Rover to get brand-new head gaskets, here’s the most typical questions you might have:

What are the symptoms?What carry out you need to do the job?How lengthy will the take?Can girlfriend really do it yourself?

Read on and we’ll prize those concerns for friend as finest we can…

Symptoms of bad Head Gaskets

Bad head gaskets can present their true colors in numerous ways, not all of which necessarily make sense.

Temperature Spikes: The classical symptom the the failing head gasket is the rapidly rising coolant temperature gauge on the dashboard. The cylinder head segments combustion chambers, coolant passages, and oil passages through the head and into different parts that the engine block. The head gasket, with its plenty of holes, is the junction of these passages. As soon as the coolant passages leak, the truck has less coolant in the system, and eventually cannot save up with higher engine temperatures.

Exhaust Noise: If your head gasket has blown ~ above the outboard side of the burning chamber, exhaust gases will leave the engine via this void instead of through the exhaust manifold (which bolts come the head). This will cause your soil Rover to do a according to pfft pfft pfft sound, choose an exhaust leak – also though your exhaust mechanism is tight from manifold to tailpipe.

Coolant pressure Rise: when the gasket between the compression chambers and also the coolant passages blows, pressurized compressed gases will obtain into the coolant, pressurizing the coolant system.

Low Compression: This symptom is common when a head gasket goes poor in a burning chamber. The effected cylinder(s) will certainly produce nearly no compression ~ above the upstroke, thus likewise producing nearly no power.

Misfiring: as soon as coolant leaks right into the burning chambers, it deserve to foul the spark plugs, leading to a misfire together the liquid coolant prevents the sparkplug native firing.

Coolant Leaks: This is a pretty huge one. When the coolant passages on your head gasket go, coolant leaks the end of the gap. This is the most evident sign of a poor head gasket – if you see coolant coming the end of the seam between the engine block and also head, it’s unable to do bad.

What parts Do You need For Gasket Replacement?

All that the components you have to replace your head gaskets can be derived right below at Atlantic British. Our head gasket kits supply every the basics needed, including ancillary gaskets you’ll must do the full reinstall.

For earlier trucks:Premium Head Gasket Set, Composite Upgraded Elring Gaskets for V8 jewel Motors, has Head Bolt SetFor floor Rover exploration I, Defender, selection Rover P38, And variety Rover Classic


For later on trucks:Premium Head Gasket Set, Composite Upgraded Elring Gaskets for V8 BOSCH Motors, consists of Head Bolt SetFor floor Rover Discovery collection II And range Rover P38


The initial head gaskets on earlier Rover V8s to be metal, yet all worthy replacements will be a contemporary composite gasket, favor in the kit above. A composite gasket seals better, and survives more heating and also cooling cycles. Don’t freak out if the gasket coming the end of your earlier engine doesn’t enhance the new one – you’re just updating your automobile to the later on standard. Later models came through a composite gasket from the factory.

Head bolts have to be changed as they are stretch bolts, and are one-time use only. The kits over include a complete collection of replacement head bolts.

You can additionally opt because that ARP racing head studs, which offer boosted reliability and also strength over continual head bolts.

To pair with ARP bolts, head gasket kit without standard head bolts space also obtainable for earlier trucks and for later on trucks.

Tools for the Job

You’ll need some one-of-a-kind tools and supplies past the normal sockets and wrenches any kind of mechanic will have.

A 5/16-inch, 12-point deep socket. This is necessary for valve sheathe bolts. This needs to be a slim socket through a narrow shank to fit in the recesses for the external bolts. No every residence mechanic has one, and not every hardware store appears to bring it, therefore it’s worth sourcing front of time to make the project easier.Torque wrench. You’ll require this for many of the reassembly.Breaker bar. You’ll need this for placing the head bolts back in – they don’t job-related on timeless torque values, however instead ~ above the clock system. You may also want to take into consideration getting a dial gauge.Sealants. You’ll require RTV and also thread locker because that the reassembly process. Both that these room easily easily accessible at auto parts stores. Friend should also get some anti-seize for specific bolts, like the exhaust manifold bolts.Penetrating Oil. particularly if girlfriend live in locations of the nation where cars get rusty, you’ll desire ample penetrating oil available or the prefer to loosen stubborn bolts. We recommend PB Blaster brand oil.Fluids. You’ll have drained a most coolant and also oil in the procedure of this job, and might it is in working through contaminated fluids due to the explode gasket. Make certain to get sufficient of the coolant and also oil the your selection to fully refill the engine.

Suggested extr Replacements

Coolant Hoses. There’s a an excellent chance that the hoses room damaged indigenous a feasible overheating incident. Castle should also be changed periodically anyway, as rubber degrades end time, and also there’s no much better time to perform it than once you have the engine apart and also the system drained. This also allows you to make her life easier and also drain the system by cutting the bottom hose, rather of do the efforts to work-related the rubber off the flanges wherein it has actually adhered to the metal after year of use.

You should also consider replacing your thermostat – a small expense, but due to the fact that you’re already in there, not that tough to do. We offer kits with the hoses and thermostat, custom-designed for her Land Rover. We've made ordering this stuff basic as well and also we have a full selection of Coolant Hose with Thermostat kit available.


Coolant water tap & Thermostat Kit because that Discovery collection II above (9370D2SKA)

Your cylinder heads and engine block can need machining, if the engine has severely overheated. This is normally not a DIY job and also requires an engine device shop.

How to perform the Job

If this is your very first major floor Rover repair, don’t despair! It’s a large job, yet you can do it, and we all have to start somewhere.

Your workspace have to be clean; a garage is preferable if you have actually one, yet if you space doing the outside, a tarp under the engine bay will assist keep dropped parts easy to find and also keep toxicity fluids native seeping into the ground.

Label everything! If you space unfamiliar v your engine bay, use masking tape and a Sharpie to mark all connections and what you gotten rid of them from. Usage your call camera liberally to record every little thing you disconnect – you may also want to make video clips whereby you describe to her future me what you have actually disconnected and how it goes back together.

Take things slowly. Every one of the van that usage the Rover V8 are acquiring older, and also your heads may not have been off the engine in decades, if ever. If girlfriend live in the Salt Belt, you’ll likely have actually corrosion on plenty of of the bolts and fittings. Exhaust manifold studs are an installed tightly, however can likewise snap off your heads relatively easily, turning simple job right into an all-day affair. Usage patience, numerous lubricants, and also if you’re comfortable through it, a heat torch when needed.

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Overall, a head gasket fix is not beyond the domain of the average home mechanic. It’s a big job, however it’s just a collection of steps of disassembly and reassembly. If you perform it methodically, it will certainly take a while, yet it can acquire done. At the point, your world opens as much as repairing much more and an ext on her Land Rover yourself, too – and also there is no more satisfying feeling 보다 successfully starting the van after together a major repair!

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