Doing it right the first time

Rebuilders benefit by doing it right the first time

Broken damper spring

Broken damper spring
Damage caused by improper application .

Damage caused by improper application .

While the number of E4OD/4R100 converter comebacks continue to rise due to clutch failure, many rebuilders are sti ll using the Luk single-disk clutch for diesel applications. This simply is not an acceptable rebuilding procedure and should be avoided. Damper failure will occur even if the heavy-duty double springs are used (see photo). They are not recommended for the 7.3L turbo diesel engine.

While the incident of failure may not occur right away, it is inevitable and the question is simply “when.” The cost is always the issue, as we have stated before, but when replacing this damper use the multidisk Luk setup. This prevents damper failure and will lead to a satisfied customer.

The multidisk damper assembly can be used with the OEM-style stamped front cover or the popular and much stronger billet component.

Most rebuilders choose to replace the Luk assembly with new as opposed to rebuilding original multidisk piece. Either way, never the single-disk in this application. The singledisk is suitable for most gasoline engine applications, although, they too can benefit using the multidisk damper assembly.

Found in issue August 2005