georgeT Posted February 1, 2012 Share Posted February 1, 2012 My scratch built 7mm 0-6-0 3f (Jinty) has developed an annoying squeak ? l have put load's of fine extralube oil on everything that move's, but it's still there, can anyone help me resolve this annoying squeak as it's driving me mad..... Link to post Share on other sites More sharing options...
M Graff Posted February 1, 2012 Share Posted February 1, 2012 When does it squeak? If it's only when driving slowly, it could be the brushes. I recently had a motor that squeaked there. I found no other cure for it than to polish the edges of the brushes. That, together with some running time, made it much better! Link to post Share on other sites More sharing options...
Kenton Posted February 1, 2012 Share Posted February 1, 2012 A mousetrap ? more seriously you need to identify where the squeek is coming from first before splash oil all over the place. Has it been thoroughly run in? Is it in both directions at all speeds? Does it sound like a limping squeak (intermittent) or is it continuous? The most common cause of a squeak is the bearings not "run in" it could also be something touching that shouldn't, or even poor gear meshing - none of these will be solved by oiling. Link to post Share on other sites More sharing options...
georgeT Posted February 1, 2012 Author Share Posted February 1, 2012 Thank's for the quick reply lad's, forgot to mention it squeak happen's even without the motor fitted, just pushing it along the track by hand, l think Kenton's right it must be the bearing not being run yet ? regard's Link to post Share on other sites More sharing options...
Jim49 Posted February 1, 2012 Share Posted February 1, 2012 Could it be one of the pick-ups rubbing too tightly against the back of a wheel? Jim Link to post Share on other sites More sharing options...
Kenton Posted February 1, 2012 Share Posted February 1, 2012 Could it be one of the pick-ups rubbing too tightly against the back of a wheel? Jim That's also a good suggestion. But it really sounds like this loco has not been run in yet. Install the motor and gears and give it a good run in both directions - put a very small amount of oil on the bearings first. Monitor it and see if the squeak diminishes. All kit locos need to be run in. Link to post Share on other sites More sharing options...
34theletterbetweenB&D Posted February 1, 2012 Share Posted February 1, 2012 Remember you can always do it reductively, Take subsystems and components off until it goes away, restore the suspect, see if it reappears... Link to post Share on other sites More sharing options...
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