Alternative options for engine reconditioning schemes

During the independent overhaul of the engine, the reader will be faced with the need to choose the most appropriate scheme of actions for him, which determines the total volume and nature of the work to be done. The need to replace the engine block, connecting rod and piston groups and the crankshaft is determined by many different factors, the main of which is the condition of the block. Other parameters that determine the choice of the structure of the forthcoming work include time and material costs, the availability of the necessary spare parts, as well as the own qualifications of the car owner as a mechanic.

The following main schemes for the overhaul of the engine can be distinguished:

Repair and replacement of components individually - If the condition of the block and the main internal components of the engine is found satisfactory during the inspection, the most reasonable solution is to carry out their maintenance on an individual basis. In this case, you should carefully check the condition of the block, crankshaft and connecting rod and piston groups. Even with a very slight degree of block wear, its cylinder mirrors must be honed without fail.

Using the crankshaft repair kit - The set consists of a machined crankshaft and a set of repair connecting rods with pistons installed on them. Piston rings and bearing shells are also included. The kit can be designed to be installed in both a block with standard size cylinders and a machined assembly.

Using an abbreviated engine block set - The reduced set includes a cylinder block with a crankshaft and connecting rod and piston groups already installed in it. At the same time, all crankshaft bearings are equipped with new liners, and their working clearances are precisely adjusted. Further, such a set is retrofitted with camshafts removed from the old engine, valve mechanism components, cylinder heads and attachments without any global mechanical work.


Using an extended engine block set - Extended kit is a reduced kit, plus oil pump, oil pan, cylinder head with cover, camshaft, valve train components and timing gear (gear wheels with timing belt) with lids. All provided bearings, seals and gaskets are new, the gaps are adjusted. It remains only to connect the intake pipeline with the exhaust manifold and attachments to the block.

There is also an option complete engine replacement. Many branded service centers offer a similar service on an exchange base, exchanging worn-out units for new or refurbished ones.

Before choosing any of the above engine overhaul schemes and proceeding with the purchase of the appropriate replacement components, consult with car service specialists, representatives of your car manufacturer's company service center and more experienced motorists.