Patched Fasteners

WARNING: This page is about a different car, the 2001 Jaguar XKR and 2001 Jaguar XK8. However, it is still accessible from the selected car via links, so may be relevant.

Two types of patched fastener are essentially used on certain suspension, steering and other critical components, where operational movement of the component necessitates positive thread locking. Standard patched fasteners have part numbers bearing the suffix letter M. For identification of special patched fasteners, refer to the list of patched fasteners below, or the relevant component drawings.

Jaguar Specification JFS 02.01.02 patched fasteners incorporate a micro-encapsulated adhesive which is released into the mating threads during tightening. Following final tightening, the adhesive in this type of patched fastener must be allowed a period to cure before the component/vehicle is used. On removal, this type of fastener must be discarded and a new patched fastener of the same specification fitted. All mating threads must be thoroughly cleaned prior to fitting of the new fastener.

Jaguar Specification JFS 02.01.04 patched fasteners incorporate a plastic/polyester on the thread. Acting as a wedge between the mating threads, this compound imposes a prevailing torque during tightening. While this type of patched fastener can be re-used, the imposed torque diminishes. It is therefore recommended that following third removal, this type of patched fastener is discarded and a new fastener of the same specification is fitted.

Special fasteners bearing the following part numbers are of the micro-encapsulated adhesive type and following removal, must be discarded and replaced by new items of the same specification:

CAC 8223

JZB 10060; JZB 10061; JZB 10078.

JZH 100027.

JZS 100082; JZS100087; JZS 100088; JZS 100089; JZS 100090; JZS 100118; JZS 100157; JZS 100164; JZS 100166.

NCA 1451 AA.