RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 Point of order - "pick a weed here" isn't quite right - in fact it was Derek Napier from S London, whose face had one of those twitches. Can't for the life of me think what his nickname was. I'm so old I can remember hearing MTB's in Plymouth sound in the early 50s that were actually Deltics in disguise. Tory Pedo 2 Link to post Share on other sites More sharing options...
RMweb Gold Stubby47 Posted January 11, 2018 RMweb Gold Share Posted January 11, 2018 I thought that said back and froth..................................thus this is the Hornby/Bachman/You name it Thread posters pet locomotive (I suspect the Yanks call them Units or something dumb) so look here you Trumpers....this is a sodding Unit download.jpg Shove that up yer Incline. Mr OB I gave another unit yesterday. "Just a small prick" she said - I thought "How do you know ?" Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 Day light robbery at those prices :ireful: Edit.....Whoops this isn't the Bachmann crane thread....... I'm going on that thread to cause mayhem........ Norty Bouy 1 Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 http://www.derails.co.uk/index.php?route=product/product&product_id=2314 Gurgle. P Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 Tasty. I. Dewdeny. 5 Link to post Share on other sites More sharing options...
LNER4479 Posted January 11, 2018 Share Posted January 11, 2018 Limpley Stoke, I know the feeling .... Limpley Stoke rearranged is 'stole my pikle'. No wonder you're feeling limp... Anna Gram 1 Link to post Share on other sites More sharing options...
The Blue Streak Posted January 11, 2018 Share Posted January 11, 2018 Is that a Ozzie version of our 66s but updated? oooh no, its an MPI MP27N built by Motive Power Industries (who make commuter locos). Nothing to do with EMD or whoever they are now. Interestingly, the engine blocks are cast in Germany and finished at Cummins plant in Daventry. Exactly Wot the Doc said. There's narrow gauge (3'6") versions in 2700 and 3300 hp forms ie MP27CN or MP33CN (of which the 2700 are quite a bit lighter and can run on 16tonne axle load lines) There are also Standard gauge versions which are MP33C. Locos built in Idaho by Motive Power and 4 stroke Diesels by Cummins as Doc stated. More info here Link to post Share on other sites More sharing options...
bigwordsmith Posted January 11, 2018 Share Posted January 11, 2018 How does a 4-stroke diesel work? I know petrol engines go Suck Squeeze Bang Blow but the whole point of diesel is you don't need a spark plug to provide the 'Bang' - hence them being two stroke. Link to post Share on other sites More sharing options...
RMweb Premium Tim Dubya Posted January 11, 2018 RMweb Premium Share Posted January 11, 2018 Suck Squeeze Bang Blow Link to post Share on other sites More sharing options...
bigwordsmith Posted January 11, 2018 Share Posted January 11, 2018 Sorry, you're right, they are correctly termed Intake Compression Explosion Exhaustion Somehow the colloquial version is more memorable! Link to post Share on other sites More sharing options...
The Blue Streak Posted January 11, 2018 Share Posted January 11, 2018 How does a 4-stroke diesel work? I know petrol engines go Suck Squeeze Bang Blow but the whole point of diesel is you don't need a spark plug to provide the 'Bang' - hence them being two stroke. As far as I know 4 stroke diesel also goes Suck Squeeze Bang Blow the difference being the bang is provided by the heat when the fuel / air compresses rather than a spark Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 As far as I know 4 stroke diesel also goes Suck Squeeze Bang Blow the difference being the bang is provided by the heat when the fuel / air compresses rather than a spark All this sounds similar to instructions given to me when I had a Colonoscopy.......................... Iva Gonealready Link to post Share on other sites More sharing options...
Benbow Posted January 11, 2018 Share Posted January 11, 2018 How does a 4-stroke diesel work? I know petrol engines go Suck Squeeze Bang Blow but the whole point of diesel is you don't need a spark plug to provide the 'Bang' - hence them being two stroke. The same.....just uses heat from the high compression ratio to ignite the fuel. T.O.P Mechanic Link to post Share on other sites More sharing options...
bigwordsmith Posted January 11, 2018 Share Posted January 11, 2018 The same.....just uses heat from the high compression ratio to ignite the fuel. T.O.P Mechanic THanks for the education - I always thought they must be 2-stroke like old motorbikes Link to post Share on other sites More sharing options...
RMweb Premium Clive Mortimore Posted January 11, 2018 RMweb Premium Share Posted January 11, 2018 Tasty. I. Dewdeny. Hi Monsieur Duck I see you have managed to get this past the Chief Civil Geezer, lets hope "Sir" doesn't see a Gresley coach disfigured by the Southern..... Different, I like that. Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 Be OK if I actually finished the damn thing!!!!!!!! Phil Link to post Share on other sites More sharing options...
RMweb Gold gwrrob Posted January 11, 2018 RMweb Gold Share Posted January 11, 2018 http://www.derails.co.uk/index.php?route=product/product&product_id=2314 Gurgle. P I think that's an excellent price when you compare the build of an equivalent kit built example. Dip your bread Phil. Link to post Share on other sites More sharing options...
The Blue Streak Posted January 11, 2018 Share Posted January 11, 2018 THanks for the education - I always thought they must be 2-stroke like old motorbikes The GM / EMD are 2 stroke Diesels but they tend to draw there air in via ports from the side when the piston is at the bottom of the stroke the intake ports are pressurised (generally via a supercharger) which forces the spent gasses out through conventional valves rather than the upwards motion of the piston pushing it out so they fire every second stroke instead of every fourth. so they go - Squeeze / Bang Force Feed/ Blow I don't believe a 2 stroke diesel can just be fed via atmospheric pressure entering the cylinder through the vacuum created from a descending piston it must be pressurised. Where as a 4 stroke diesel does not have to be supercharged. or something Link to post Share on other sites More sharing options...
Dr Gerbil-Fritters Posted January 11, 2018 Share Posted January 11, 2018 http://www.derails.co.uk/index.php?route=product/product&product_id=2314 Gurgle. P That's a lot of money for a tiny drawing of a coach, even if it is in colour Link to post Share on other sites More sharing options...
RMweb Premium Mallard60022 Posted January 11, 2018 Author RMweb Premium Share Posted January 11, 2018 Heads up. Little naughty dropped into the Baccy Crane thread. Phil 2 Link to post Share on other sites More sharing options...
Dr Gerbil-Fritters Posted January 11, 2018 Share Posted January 11, 2018 (edited) Heads up. Little naughty dropped into the Baccy Crane thread. Phil Edited January 11, 2018 by Dr Gerbil-Fritters 1 Link to post Share on other sites More sharing options...
RMweb Premium Siberian Snooper Posted January 11, 2018 RMweb Premium Share Posted January 11, 2018 I thought that said back and froth..................................thus this is the Hornby/Bachman/You name it Thread posters pet locomotive (I suspect the Yanks call them Units or something dumb) so look here you Trumpers....this is a sodding Unit download.jpg Shove that up yer Incline. Mr OB That be a unit on Balcombe / Ouse viaduct in East Sussex. Link to post Share on other sites More sharing options...
RMweb Premium New Haven Neil Posted January 11, 2018 RMweb Premium Share Posted January 11, 2018 The GM / EMD are 2 stroke Diesels but they tend to draw there air in via ports from the side when the piston is at the bottom of the stroke the intake ports are pressurised (generally via a supercharger) which forces the spent gasses out through conventional valves rather than the upwards motion of the piston pushing it out so they fire every second stroke instead of every fourth. so they go - Squeeze / Bang Force Feed/ Blow I don't believe a 2 stroke diesel can just be fed via atmospheric pressure entering the cylinder through the vacuum created from a descending piston it must be pressurised. Where as a 4 stroke diesel does not have to be supercharged. or something They can be, but they're not very efficient. At all. Under-piston 'supercharging' is used as an extra boost on big ones - very big ones like this one I worked on as a young engineer officer. 3 Link to post Share on other sites More sharing options...
RMweb Gold Captain Kernow Posted January 11, 2018 RMweb Gold Share Posted January 11, 2018 I don't know why but here it is anyway... Limpley Stoke.jpg Pure class again, Mr Dubya. Link to post Share on other sites More sharing options...
vaughan45 Posted January 11, 2018 Share Posted January 11, 2018 (edited) Content Removed. Edited February 2, 2020 by vaughan45 4 Link to post Share on other sites More sharing options...
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