Slinging Method

If you are looking for information about how to handle Large Viscous Dampers using Slinging Method you’ve come to the right place!

PJ Diesel Engineering A/S is authorized by Metaldyne.

We offer high-quality factory-authorized service and have more than 40 years’ experience in servicing, repairing and maintaining Viscous Dampers.

Most Four-Stroke diesel engines are fitted with one or two viscous shear type torsional vibration dampers attached to the crankshaft, at the opposite end to the flywheel.


Handling Large Dampers using the Slinging Method
Eyebolt holes (2, 3 or 4) are provided in the damper flange to move damper in horizontal position such as removing from packing case. The thread size is stamped adjacent to one of the holes.

A soft sling (rope, leather, etc.) through the central bore of the damper can be used to change the damper from horizontal position to vertical.

When the damper is vertical, sling guides can be fixed, and wire slings passed under the damper before temporally resting the damper on wood supports.

After passing wire slings around the damper between guides as shown in the drawing, the soft sling may be changed to wire sling for mounting on the crankshaft flange.

Selection of rope or wire sizes will be determined by damper weight and local safety regulations.


PJ Diesel Engineering A/S provides both original test kits for Silicone Testing and original Metaldyne spare parts upon request.

In PJ Diesel Engineering we focus on circular economy-based repair and service solutions based on “Waste Less – Lose Less” principle, and continuous optimization, so please contact us with specific application information and we will guide and advise accordingly.

New is not necessarily best!
A Viscous Damper with a wear and damages can in most cases be repaired at a price up to 75% less than buying a new one. It can even improve life cycles compared to new components from the manufacturer – and with even better delivery times.

Availability and fast response are key to our mutual success, and at the same time we can offer to repair parts which often would be stated as non-repairable. Common problems can most likely be repaired in our workshop and along comes always a 24-month liability for defects and shortages.

The PJ Diesel component workshop is located in Rødby, south of Copenhagen, and is specialized in the reconditioning of major engine components. We offer service, repair and maintenance of all types of Viscous Dampers and we have a team of factory trained service engineers working around the clock to service our customers.


Circular flow and Exchange Service


Imagine a shared response program unlocking the value of unused assets and saving you from stockpiling key components for urgent repairs.

Within PJ Diesel Engineering A/S you can join services with other end-users minimizing stock expenses, and at the same time maintaining full flexibility and the advantage of externalizing the risks. Through our exchange program expensive individual ownership costs and delivery time is reduced with shared acknowledged access to key components. Read more about our EXCHANGE SERVICE

Long- and short-term benefits


    • Improving service by enabling programmed maintenance and emergency response
    • Reduce dependency from shore facilities
    • Eliminate delivery time (Time required for repairs from shore)
    • Plug and play solutions
    • Risk reduction
    • Reduced operational cost
    • Elimination of expensive inventory
    • Fixed prices on exchange units - easy budget planning
    • 24 months liability for defects and shortages
    • High availability because of inventory at PJ Diesel Engineering A/S facilities
    • Not stocking expenses
    • No new unit investment
    • Full report and IMO/EAIAPP Validation
    • Repairable damages all included in SEU (Service Exchange Unit) A solution with no extra costs
    • Elevating from supplier to service partner (Trusted supplier)
    • Responsible and sustainable Supply Chain Management