25-03-2021, 08:59 PM
Helping my son fix up an old Aprilia Pegaso motor bike so this is not directly relevant to Sevens, but may be interesting nonetheless.
The steel M18 x 1.5 sump plug has slowly removed all the threads in the aluminium sump of the bike over the last twenty seven years.
I am happy with helicoils, but the location of the hole makes lining up the tap and driving it in perpendicular to the sealing surface pretty challenging. There is no load on the plug other than that needed to seal the copper crush washer, recommended torque is 20 ft/lbs.
I am considering buying Loctite 26854 "Form a Thread" which is a two pack product designed to reconstitute stripped threads in situ, using the male thread to mould it against the stripped hole. The plug is drilled for wire, so I will be wiring it after installation, which means "giving it a nip for luck" is unnecessary, although of course this is exactly what all the previous owners have done over the years.
Has anybody on the forum any experience of using this product please?
The steel M18 x 1.5 sump plug has slowly removed all the threads in the aluminium sump of the bike over the last twenty seven years.
I am happy with helicoils, but the location of the hole makes lining up the tap and driving it in perpendicular to the sealing surface pretty challenging. There is no load on the plug other than that needed to seal the copper crush washer, recommended torque is 20 ft/lbs.
I am considering buying Loctite 26854 "Form a Thread" which is a two pack product designed to reconstitute stripped threads in situ, using the male thread to mould it against the stripped hole. The plug is drilled for wire, so I will be wiring it after installation, which means "giving it a nip for luck" is unnecessary, although of course this is exactly what all the previous owners have done over the years.
Has anybody on the forum any experience of using this product please?