Installing Repair Threaded Bushing

Installation Location:

Fig 1: Installation position of threaded bushing for suspension subframe mount

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1 - Pickup point for diagonal brace mounting

2 - Pickup point for rear-axle side section mounting

3 - Pickup point for V-strut mounting

4 - Pickup point for engine mounting

5 - Pickup point for front axle mounting, rear

WARNING: Danger of material damage and personal injury when repairing threads!

Danger of material damage and personal injury!

→ Thread repairs must only be performed using the Time-Sert thread repair kit

NOTE: The repair bushing must be installed recessed. To mill in the respective shoulder, the tool with the designation Spot facer for Time-Sert thread repair kit NR.122-2 for M8, M10, M12 or M14 must be used. The tool provided with the complete set supplied must not be used in this case!
While pressing in the base thread, a noticeably larger amount of force is required on the screw-in tool to form the internal thread. Pressing is finished when the screw-in tool can be turned further more easily.

1. Drilling out thread

Fig 2: Drilling out thread

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Select kit M10 or M14. Drill out old thread with drill contained in kit M10 or M14 B as far as the base of the thread.

2. Milling in shoulder

Fig 3: Milling in shoulder

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Select kit M10 or M14. Mill out bore hole with spot facer C up to dimension X , see Table classification for suspension subframe repairs . Milling in can only be performed using the tool Spot facer for Time-Sert thread repair kit NR.122-2 . For milling, use an electronically controlled power drill set to a speed of approx. 250 ¹ /_min .

3. Cutting thread

Fig 4: Cutting thread

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Cut thread using a cutting tool D up to dimension Y into the chassis bushing, see Table classification for suspension subframe repairs . Clean the thread on the chassis bushing (blow it out).

4. Positioning threaded bushing on the screw-in tool

Clean the thread on the bushing and screw-in tool.

Oil the screw-in tool E .

Fig 5: Positioning threaded bushing on the screw-in tool

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Screw the threaded bushing A onto the screw-in tool E by hand.

5. Screwing in threaded bushing

Fig 6: Screwing in threaded bushing

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Completely screw in threaded bushing A (note bushing length classification) with the screw-in tool E .

6. Pressing threaded bushing

Fig 7: Pressing threaded bushing

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Form and press threaded bushing E by turning further with the screw-in tool D in the base thread.

7. Unscrewing the screw-in tool

Unscrew screw-in tool E from the threaded bushing A .