Lambretta Thread repair insert 8-12 x 21mm, Steel, MB
£3.77
£3.14
In stock
SKU
MBP0684
Thread insert 8-12 x 21mm, MB Steel
Thread repair insert specially designed and made for MB Scooters.
- 12 x 1.5mm outside diameter
- 8 x 1.25mm inside diameter
- 17mm long
- Zinc plated
Can be used as a universal repair insert or especially works on
- Lambretta crankcase side exhaust 8mm holes
- Lambretta crankcase cylinder studs
Requires 12mm tapping tool MBU0921
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Basic repair is like this.
- Drill out to 10.5 - 10.7mm
- Tap threads to 12 x 1.5mm
- Use a 8mm screw with plain nut, screw the insert onto the screw, lock the nut gently
- Cover the threaded screw with a strong loctite and screw the insert in with the screw untill it locks, unwind the nut and remove the screw
- You can counter bore the casting so the top hat seats flush
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