Fitted brake reaction bars yesterday. Super pieces of kit from Cain at Wolf.
All going swimmingly until replacing the top bolt back into the kingpin on the second side. This is a fine threaded hollow bolt about 12mm OD roughly 40mm long with 22mm AF hexagon. Very carful not to move anything. Bolt went down the hole about 10 mm and then failed to engage with the kingpin threads. Not really possible to see what was going on even with a mirror and torch. Several attempts failed and trying a hammer blow to the top of the bolt was becoming hard to resist. Last resort was a thorough clean up of the threads and a good squirt of oil. Hey Presto! The bolt then engaged with huge relief all round.
Needless to say this episode generated a few questions:
Is there an easy way of ensuring the bolt engages with the thread without major dismantling?
Why is the thread so fine? A course thread with wire locked bolt or tab washer would be more robust?
Would grinding a taper at the bottom of the bolt assist engagement?
Anyone experienced this before?