Flywheel bolt

Author
Discussion

GTRMikie

Original Poster:

872 posts

249 months

Sunday 21st November 2004
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The flywheel bolt on my Swiftune motor was held on by thread locking compound, not a locking washer. Is this the preferred way of doing it now? If so, which locking compound should I use and should I replace the bolt with a new one. If I go back to a locking washer, will I need a longer bolt? Also the workshop manual states that sometimes an "encapsulated bolt" was fitted. What is this, a bolt already covered in locking compound??

phil hill

433 posts

277 months

Monday 22nd November 2004
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I've seen Mike Barratt use a locking compound on the flywheel bolt, although he used the lock-washer too, belt and braces I guess........ I would have thought a thread locker would be the one to use, rather than a stud locker. Not sure of the Loctite numbers, 222 maybe ??

haynes

370 posts

243 months

Monday 22nd November 2004
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Give swiftune a call, ive always found them really helpful. Theres a bit on the keith calver website (mini mania) that goes through the differnt types of locktite.

The flywheel bolt has a washer attached to it that you splay out into the flywheel.

Cooperman

4,428 posts

251 months

Monday 22nd November 2004
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The Verto flywheels use the 'encapsulated' bolt. This is, basically, a bolt with a built-in lock washer.
It would seem highly non-recommended to fit the flywheel bolt without any lock washer when you think of the very major damage a loose flywheel can cause (like a broken crank).
I always lap the flywheel onto the crankshaft with fine valve grinding-in paste, use a lock washer and use 'Loctite' thread locking adhesive.
Do it up 'FT ' as well, not less than 150 ft.lbs.