# Liebherr D926 TI-E A5 Engine Overhaul

> Discover the detailed process of repairing the Liebherr D926 TI-E A5 engine, used in the Liebherr LTM 1055/1 mobile crane. Learn about the replacement of main bearings, connecting rod bearings, bushings, rings, and cylinder liners. Find out about the reconditioning of injectors, coolant pump, and the hydraulic pump. Get insights into the regeneration of crankshaft, connecting rods, heads, turbocharger, and engine block.

### **Liebherr D926** TI-E **A5**

**A repair of the Liebherr D926 TI-E A5 engine, which operates in the Liebherr LTM 1055/1 mobile crane, was carried out in our workshop.**

The engine repair included, among other things, the replacement of main bearings, connecting rod bearings and bushings, rings and cylinder liners. 2 pistons, one of the heads and most of the tappets also needed to be replaced.

### Course of the repair

Reconditioned injectors were installed in the fuel system and the so-called leading injection was replaced. The cooling system is driven by a reconditioned coolant pump.

The hydraulic pump was also inspected - during the revision, a complete set of seals was replaced in it so that it could finally end up on the test stand in our hydraulic power workshop.

In addition, the following were regenerated: crankshaft, connecting rods, heads, turbocharger and engine block.

Finally, the engine was assembled on a new set of seals, gaskets and filters, and the electrical harness was repaired.

After the repair, the engine was checked and preliminarily run-in on the engine dynamometer in our workshop.

Published: 2024-03-21

---

Source: https://wibako.com/about-us/news/81-liebherr-d926-ti-e-a5-engine-overhaul
Contact: +48338704200, biuro@wibako.pl
