There are a number of things that may go wrong with your engine block as it gets older
. In general engine block repair ought to be left to the professionals as you may not have all the tools necessary to carry out repairs at home. However, if you want to tackle it yourself, here a coupe of the things that can go wrong and how you can remedy them.
Required Tools
Full auto shop set-up
Required Materials
Hammer/torque wrench
Metal stitching kit
Bearings
Rings
Timing Belt
Chains
Cams
Lifter
Instructions
If your engine block is cracked use the hammer/torque wrench to push the metal stitch in the crack and follow the steps outlined in the kit to seal the crack thoroughly. Some persons opt to weld the crack rather than metal stitching it but welding is not as effective and is likely to result in problems later on. Metal stitching is a safer choice.
If you are hearing a noise and notice signs of low oil pressure the problem may be the bearings in the engine block. When changing the bearings make sure they fit the crank journal size. Normally the size can be seen on the backside of the bearing shell. Prior to replacing the bearings make sure that the crank is straight and does not have to be turned.
If there is black smoke coming out your tailpipe, low oil pressure or a knocking sound in the engine, the problem may be the rings. Buy the rings needed for your particular vehicle and install them. Clean the cylinder and apply a light coating of oil to permit the pistons and rings to move easily.
Another thing that could be causing problems in your engine block is the timing belt and chains. These things ought to be replaced about every 60,000 miles because age is normally what causes them to break or stretch and they may lead to fatal engine problems. If your car is starting and running rough this can be a symptom of issues with the timing belt and chains. You can check the timing belt by shaking it with your hand to see if it is loose or broken. If you replace the chains a new crankshaft seal ought to be installed with the replacement chain.
If engine power is your problem the cause can be that the cams and lifters need repair and oil is leaking into areas of the engine where it shouldn't be. When changing the cams make sure you get the right cam for your particular vehicle as using the wrong cam may cause the engine to overheat. You should replace the lifter anytime you change the cam for optimal running.
Tips and Warnings
Some metal stitching kits will instruct you to apply epoxy/sealant with the metal stitching.
It is of utmost importance that you thoroughly lubricate the bearings before installing them. Installing them dry can cause them to seize up when the engine is started and this can result in further damage to the engine.