JohnRedpath1953 Posted April 2, 2021 Share Posted April 2, 2021 Hello all. My Hornby flying scotsman has worn chassis bushing. Im having problems removing them. Any ideas. Ta john Link to post Share on other sites More sharing options...
JeremyC Posted April 2, 2021 Share Posted April 2, 2021 (edited) That's quite an old chassis (looks as if its an XO4 motor). That chassis type is not fitted with bushes. (The raised rim on the axle bore is part of the chassis casting.) If its badly worn you might be able to drill out the chassis and fit brass bushes. Edited April 2, 2021 by JeremyC 1 1 Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Thanks very much Jeremy for that useful info. Ive got some bushes ordered so it looks like i will be drilling them out. Ta again Link to post Share on other sites More sharing options...
gordon s Posted April 3, 2021 Share Posted April 3, 2021 Just realised you have the same topic in two places. Thought I’d imagined replying earlier as my post had disappeared......... One of the downsides of posting the same topic in more than one area. Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Ok Gordon i will remember that. Ta john 1 Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 The data sheet seems to show bushes in the chassis . But it may be a different chassis. But i have ordered these bushes Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Oops.. it looks like my chassis different from the one in the drawing. I will wait for bushes to arrive and decide what to do. I could just get another chassis but i enjoy doing things the hard way. It still looks like a bush though Ta again john Link to post Share on other sites More sharing options...
Il Grifone Posted April 3, 2021 Share Posted April 3, 2021 A reamer is better than a drill for enlarging holes. Drills tend to wander (or at least do when I use them). I think the Hornby bushes are intended to fit into a slot in the frame, but Araldite will fix that. (Usual disclaimer!) Link to post Share on other sites More sharing options...
RMweb Gold ikcdab Posted April 3, 2021 RMweb Gold Share Posted April 3, 2021 8 minutes ago, Il Grifone said: A reamer is better than a drill for enlarging holes. Drills tend to wander (or at least do when I use them). I think the Hornby bushes are intended to fit into a slot in the frame, but Araldite will fix that. (Usual disclaimer!) 100% agree with that. The chassis metal is relatively soft and unless you are very careful and use a drill press, they is a great danger of going too far or the drill wandering. All of that would make the situation far worse. Use a reamer and go carefully. Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Thanks ickdab and griffon for that. Yes i will take my time and get a reamer sorted out. Its more cash to spend but its more fun. I got another scrap chassis to practice on but the bearing seem in better condition so i may just swop them over. See what happens. Ta again john Link to post Share on other sites More sharing options...
Il Grifone Posted April 3, 2021 Share Posted April 3, 2021 Reamers are quite reasonable on eBay. The brass bearings are an advance on holes in a zinc alloy casting. Despite that, I've only had to bush a couple of chassis castings. I forgot! I meant the proper Araldite, not the 'five-minute' rubbish. Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Ta grifone. 24 hr araldite it is... Link to post Share on other sites More sharing options...
meil Posted April 3, 2021 Share Posted April 3, 2021 Reamers have a defined hole diameter from which they produce the reamed hole. So you are going to have to drill the hole first before you ream it. You need to know the correct drill size for your particular reamer. Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Ta meil. Im going to wait until my bushes arrive before doing anything Ta john Link to post Share on other sites More sharing options...
Il Grifone Posted April 3, 2021 Share Posted April 3, 2021 I'd start with a taper reamer and finish with a parallel. Alternative methods involve a drill stand and solid vice or a lathe. Drill from both sides to centre rather than straight through. The later bushed chassis block might be the way to go, but there may be problems with fit and a list of different spare parts Link to post Share on other sites More sharing options...
JohnRedpath1953 Posted April 3, 2021 Author Share Posted April 3, 2021 Ta Grifone. Yes it could be a bit dodgy. I got a non runner flying scotsman today frim ebay £12.and swopped the everything over on to its chassis block and all is fine now. That leaves me the chassis block that has worn bearing so its not a problem if I cock it up but i will give it a go. Ta for all your advice Grifone Link to post Share on other sites More sharing options...
Il Grifone Posted April 7, 2021 Share Posted April 7, 2021 You're welcome! Link to post Share on other sites More sharing options...
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