Steering Head Bearing Problem
 

Guys, Im a tad worried here. My 749s track bike is in with a local mechanic to have some bits and bobs done, one job being to replace the head bearings.

He rings me last night to say the bearings are in fine, but the tube inside is still moving about and a little loose in the frame? I`m far from an expert, but I`m wondering whats going on as he hasnt seen anything like that before.

Even after tightening the pinch bolts up, the front end is still knotchy when you apply the front brake. A lot better than before, but its still there due to the whole assembly inside moving slightly.

Anything I should know? Please say its something simple :)

Help!!

Cheers,

Neil

Hi Neil,

Just a thought...

The tube that fits in the frame head stock (begins with 'E' but I can never remember how to spell it..:confused: ) has a fixing pin which is located on the R/H side of the head stock at the top, this pin is designed to fix the 'E' tube in place and then the 2 head stock bolts (located at the front of the frame) can then be tightened.
This locating pin might be missing which could be causing you the slight movement problems...???
I will try and find a picture so you know what to look for....:D

999-FL

Not having owned either a 749 or 999 but was wondering if the eccentric adjuster is the same as the ones found in 748s, 916s etc, or is it slightly different.
just thining that maybe as is often the case with track bikes it has been rebuilt after an accident and the wrong part used.

The locating pin is just to make sure it is in the exact position and it should clamp up tight without the locating pin

Found one.....;)