Mashby Posted April 16 Report Share Posted April 16 Hi all Just a sanity check please. I bought a recon gearbox (reputable supplier) and it’s now installed. Works fine, but I appear to have a real whine on third when accelerating. I spoke with the supplier who has suggested it may need time to bed in (200-300 miles) Has anyone experienced this before and did a whiny box settle down? The supplier was quite happy to exchange the box if it continues so I’m not overly concerned thanks in advance Link to comment Share on other sites More sharing options...
johny Posted April 16 Report Share Posted April 16 As its just one gear think its unlikely to be a bearing so could be gears. Its possible that third gear has been changed as part of the recon so its teeth no longer match those of the laygear. Now whether they can 'bed in' and how long that would take is very difficult to say but I think its worth doing the miles the supplier suggests (as quickly as possible) to see if there is any improvement... Link to comment Share on other sites More sharing options...
Nigel Clark Posted April 16 Report Share Posted April 16 I would do as the supplier suggests, give it 2-300 miles and see if it settles down. If it doesn't, get back to the supplier. Nigel Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 Gearboxes don't bed in. Like others have said its a mismatch of worn parts. Just the experience of a gearbox builder. Link to comment Share on other sites More sharing options...
johny Posted April 17 Report Share Posted April 17 Yes bit of a nightmare now isnt it - with no new gears being available mixing used parts is the only option left... Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 (edited) 18 minutes ago, johny said: Yes bit of a nightmare now isnt it - with no new gears being available mixing used parts is the only option left... Nine times out of ten its shouldn't be a problem if gearsets, and clusters are kept together when stripped for rebuild. The problem usually occurs when a used/repaired cluster is swapped for a damaged one, or individual gears are mixed up from various stripped similar core. Its its any consolation the noise shouldn't get any worse. My daily driver Courier has had noisy 3rd for over 10 years which hasn't got any worse. It was built with a replacement cluster (bushed ends), and a mixed up set of driven gears off the shelf. I wasn't worried about potential noise issues, because its a Courier! Edited April 17 by Works Spitfires 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 17 Report Share Posted April 17 what happened to sawdust and banana skins as a arthur daley motors fix ??? didnt the tooth profile change on later gearboxes mix that and you get a howler Pete Link to comment Share on other sites More sharing options...
johny Posted April 17 Report Share Posted April 17 I know the actual gear angles changed on some (to reduce noise?😁) but they definitely cant be mixed... Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 Or those gloopy snake oil concoctions you used to be able to buy from Halfrauds, and the like which promised to silence the worst mechanical malady's. Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 17 Report Share Posted April 17 Dave youre showing your age now Ha !!! put some STP in your old banger to revive it , these days i need some in my coffee !! Pete Link to comment Share on other sites More sharing options...
johny Posted April 17 Report Share Posted April 17 3 minutes ago, Works Spitfires said: Or those gloopy snake oil concoctions you used to be able to buy from Halfrauds, and the like which promised to silence the worst mechanical malady's. Yes didnt they actually put metal back on the gear teeth to bring them back to the original profile😍 Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 (edited) 21 minutes ago, Pete Lewis said: Dave youre showing your age now Ha !!! put some STP in your old banger to revive it , these days i need some in my coffee !! Pete My first full time job was as as a trainee manager in a Motorist Discount Centre (the owner of the chain had ambitions to be bigger than Halfords, and have more branches which he managed the week before it folded!). I remember our best trading days were Saturdays, and our fastest moving items were Mini exhaust systems (£9.99), Mini cylinder head bypass hoses, Cortina void bushes, and those miracle oil things (there was another brand other than STP that I seem to remember being popular). Edited April 17 by Works Spitfires 1 Link to comment Share on other sites More sharing options...
johny Posted April 17 Report Share Posted April 17 I bought one that you squeezed in through sparkplug holes to reseal pistons in worn bores - no need for rebores👍 Link to comment Share on other sites More sharing options...
Gary Flinn Posted April 17 Report Share Posted April 17 1 hour ago, Works Spitfires said: My first full time job was as as a trainee manager in a Motorist Discount Centre (the owner of the chain had ambitions to be bigger than Halfords, and have more branches which he managed the week before it folded!). I remember our best trading days were Saturdays, and our fastest moving items were Mini exhaust systems (£9.99), Mini cylinder head bypass hoses, Cortina void bushes, and those miracle oil things (there was another brand other than STP that I seem to remember being popular). Slick 50? Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 17 Report Share Posted April 17 aha Mini bypass hoses either it went on a doddle or it fought you all the way Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted April 17 Report Share Posted April 17 15 minutes ago, Gary Flinn said: Slick 50? In less enlightened times I used it in all my cars. Still have a few unused stickers in a drawer somewhere. 1 Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 19 minutes ago, Gary Flinn said: Slick 50? That's the one 1 Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 (edited) 20 minutes ago, Pete Lewis said: aha Mini bypass hoses either it went on a doddle or it fought you all the way Pete We used to sell a ribbed (for pleasure?) alternative to the original straight one, it made fitting so much easier. They used to come on a cardboard sheet in little tear off plastic bags (yellow coloured branding with a blue Lion, can't remember who though?). Edited April 17 by Works Spitfires 1 Link to comment Share on other sites More sharing options...
martin barlow Posted April 17 Report Share Posted April 17 Back in the day everyone either worked or at least knew someone who worked for Motorist discount centre-you would have thought they were as big as ici-must have conducted more interviews than any other company-fantastic place to work in early days Link to comment Share on other sites More sharing options...
Works Spitfires Posted April 17 Report Share Posted April 17 (edited) 30 minutes ago, martin barlow said: Back in the day everyone either worked or at least knew someone who worked for Motorist discount centre-you would have thought they were as big as ici-must have conducted more interviews than any other company-fantastic place to work in early days The chap that owned it was an interesting fella. I was impressed when he turned up at the HQ in Nottingham when I was on my training in a Jensen Interceptor. I've never forgotten his name (Richard Hartley) because I had to write it out on the banking envelope at the end of each days trading then walk through the town with a couple of grand in cash before sticking it in the Nat West night safe. How I never got mugged for it I'll never know. Edited April 17 by Works Spitfires Link to comment Share on other sites More sharing options...
martin barlow Posted April 17 Report Share Posted April 17 One of the wagon drivers (who must have been well thought of) was rumoured to have been sent to have a phone fitted in the Jensen and called Richard on it to tell him he had pronged the car!-Happy days-think the by pass hose might have been supra Letco or supra parts as they became Link to comment Share on other sites More sharing options...
Mashby Posted April 18 Author Report Share Posted April 18 Well that spiralled off in many interesting directions! Thanks for all the comments. I think I’m going to enjoy the summer with it and then take stock. I went out in it yesterday with the newly soundproofed tunnel in place and to be honest, the noise is not that noticeable. So will the whine outweigh the agro of replacing the box? and from the comments, I could be in a similar position if I do replace it A decision for October/November I reckon thanks again Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 18 Report Share Posted April 18 driving with the tunnel off will frighten the Pooh out of many with all the whirring clacking clicking thats hidden by the tunnel Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted April 18 Report Share Posted April 18 44 minutes ago, Mashby said: So will the whine outweigh the agro of replacing the box? and from the comments, I could be in a similar position if I do replace it A decision for October/November I reckon thanks again If it's only third then it all depends on how much and for how long you use that gear... cruising in 4th, if it's silent then, may outweigh the problems caused by 3rd. Noisy 4th may be much worse!! I have a number of spare boxes and spare parts salted away but it's the bother of removing any box when one finally needs work that colours any decision and makes me feel I can tolerate things for another while... 1 Link to comment Share on other sites More sharing options...
Mashby Posted April 18 Author Report Share Posted April 18 3 hours ago, Pete Lewis said: driving with the tunnel off will frighten the Pooh out of many with all the whirring clacking clicking thats hidden by the tunnel Pete Very true, and prior to the new box going in it was a fibre glass tunnel with no soundproofing so it was quite loud. Much better now Link to comment Share on other sites More sharing options...
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