Engine Overhauls

By appointment only

How to Avoid Engine Overhauls!

The best way to prevent the need for an engine overhaul, is to:

  • Service the vehicle regularly, as per the indicators in the car,
  • Always check the water and oil levels when you fill up with petrol,
  • Stop the car immediately when the STOP light goes on, on the dashboard.

The biggest reason for engine overhauls, is running the engine when it does not have enough water and oil to cool it down. The extra heat then cause engine part to crack and fail. Usually the “head” of the engine.

When the car is overheating, stop the car. Don’t drive the car. You will only cause even more damage if you drive it (even if you drive it slowly) when it is overheating.

When the worst happens, we can help repair the engine. If that means an overhaul, then we need to spend quite a bit of time inspecting the engine. To make sure we understand exactly which parts needs repairs or replacements.

Because it takes some time to properly assess the damage to your car, you need to make an appointment if you want us to give you a quote on an engine overhaul.

Assessing Whether Your Engine Needs an Overhaul

When we inspect your engine to determine what must be done, here are some of the things we will look at:

  • Engine Block – the main part of the engine. To remove it usually takes a small crane, because it is a very heavy piece of metal, that was cast in one piece.
  • Cylinder Head (Engine Head) – this is the big bit that sits on top of your engine. It covers the cylinders. This is the thing that cracks!
  • Engine Oil Parts – We need to check carefully for oil leaks. It can leak from the engine itself, or from the various pipes or filter or even from the oil pump. We also check the sump, which is a part you will see right underneath the car, under the engine. This is where we drain the oil from your car when we need to replace the oil.
  • The Water Cooling System – We check for water leaks. It can leak from the engine if it is cracked. It can also lead from the water pump, and the various water pipes in your engine.
  • Belts and Pulleys – Your engine has a number of belts and pulleys. They drive things like the engine cooling system. We need to check if any of these parts are missing, loose or damaged.
  • Engine Mountings – Your engine is attached to your car via the engine mountings. If these are loose or damaged, we need to fix it.
  • Funny Noises! Yes, we do listen to the noised the engine is making. That can often help us identify the problem faster. A knock, ping, and tuk noise certainly means different problems.
  • Various other Tests! We also look at things like Compression, Cam Belts, Turbos, Lifters, etc.

Why Us?

At Three Service Centre we have over 38 years of experience in BMW engines. Since 1982 we have been specialising in BMW vehicles. The last few years we have added Minis, because Mini is actually built by BMW!

Western Cape

In the Western Cape you will find a number of workshops that work on BMW. We are the only Independent BMW Approved Service Centre in the Northern Suburbs.

Whether it is a blown cylinder head gasket, cracked head, or broken pistons, we have seen it all!

BMW and Mini Engine Overhaul Specialists

We have been dealing with BMW, and more recently Mini engine overhauls for a very long time. We know your car, and we know your engine. So we find the problems fast, and we fix them right. At the right price.

Some of the Things we would do when we Overhaul Your Engine

Overhauling your engine can involve:

  • Skimming the head
    Pressure testing the engine
  • (Re)-boring the engine, or honing it
  • Replacing rings, seals, bearings
  • Checking the crankshaft
  • Regrind the valves and replace the valve stem seals

To determine exactly what needs to be done, you need to make an appointment so we can do a thorough inspection, and give you a proper quote.

The Basic Steps in Overhauling an Engine

What are the steps we will take to overhaul your engine? Well, here are the basic process. Keep in mind that depending on what we find, any step can turn into a bigger job.

Remove Engine

We carefully disassemble and remove your engine from the vehicle. This includes removing the gearbox. We take the engine apart bit by bit. So we can check each component for cracks and faults.

Pressure Testing

Your engine block, the crankshaft and the cylinder head are sent to a specialist engineer. The engineer will pressure test the engine. Then the parts get skimmed till it is good as new. This also involves grinding and finally polishing the parts.

Clean all the Parts

We clean all the engine parts that we took out of your car. This enables us to look for further cracks and leaks and broken bits we might have missed in our initial inspection. We clean our the radiator and we order replacement parts where needed.

Check Engineering Work

When we get your engine back from our engineers, we check each part to make sure the work was done correctly and up to standard.

Oil the Parts

Next we oil all the cleaned parts. This will help make the re-assembly easier, and it protects the parts.

Rebuild the Engine

Now we rebuild your engine. With replacement parts where needed. And always using new seals, rings and bearings. Once the engine is assembled, we torque the relevant parts, to make sure the bolts are tightened to the correct level. Lastly we do the timing on the engine.

We reconnect the engine to the gearbox and install everything properly in your car. Then we connect all the pipes and electronics. And finally we close everything up.

Service the Engine

Now that the engine is completely rebuilt and reassembled in your car, we fully service the engine.

Test Rebuilt Engine

Finally we test your engine now that it is fully rebuilt and installed in your car. If we are completely satisfied, only then do we hand the car over to you!