Medic1281 Posted November 9, 2017 Report Share Posted November 9, 2017 I’m in the middle of trying to get an old Briggs and Stratton engine going that I’ve been given. It turns over so there is hope! However it’s been left stood for years with fuel in it. The fuels has now gone to a thick tar. I’ve replaced all fuel lines and cleaned the tank out, but I now need to sort the carb. I think it’s beyond repair, but as they are very expensive to replace, was thinking about giving it a go. However it’s beyond me. Does any one on here clean and overhaul small carbs? I’m happy to pay to have it done. The carb is a genuine Briggs LMT 5-4993. Quote Link to comment Share on other sites More sharing options...
Whitebridges Posted November 9, 2017 Report Share Posted November 9, 2017 I bet ditchy's drooling. Quote Link to comment Share on other sites More sharing options...
TIGHTCHOKE Posted November 9, 2017 Report Share Posted November 9, 2017 Worth paying a fiver for a can of carb cleaner. Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted November 9, 2017 Author Report Share Posted November 9, 2017 1 minute ago, Whitebridges said: I bet ditchy's drooling. This topic is not aimed at ditchy at all! Honest!! But if he wanted to ..... Just now, TIGHTCHOKE said: Worth paying a fiver for a can of carb cleaner. Tried that, the stuff inside is like treacle. And I can’t be sure the jets are clear, and I don’t really know what I’m doing!! Quote Link to comment Share on other sites More sharing options...
TIGHTCHOKE Posted November 9, 2017 Report Share Posted November 9, 2017 Oh, okay, time to PM the man with the wayward hair then! Quote Link to comment Share on other sites More sharing options...
TriBsa Posted November 9, 2017 Report Share Posted November 9, 2017 (edited) Carburetors are simple devices. What you have there is a Walbro LMT 5-4993. Use either Youtube or Google and you should find some assembly/disassembly instructions. Then do as Tightchoke advises and get a can of Carb Cleaner. Just take your time and don't lose any bits. If you can take it off, you can take it apart. Edited November 9, 2017 by TriBsa Quote Link to comment Share on other sites More sharing options...
figgy Posted November 9, 2017 Report Share Posted November 9, 2017 Where’s ditchy he’s the boi to sort this out. Probably tell you ring out some onion and carrot juice or some other potion with unicorn oil to fix it Quote Link to comment Share on other sites More sharing options...
Stimo22 Posted November 9, 2017 Report Share Posted November 9, 2017 I have rebuilt several bike carbs that were in a similar condition and find that boiling the bony in a mixture of lemon juice and water 50/50 for about 15 mins will clean them up and remove the deposits Quote Link to comment Share on other sites More sharing options...
Gordon R Posted November 9, 2017 Report Share Posted November 9, 2017 Stimo22 - very useful tip. Thanks. Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted November 9, 2017 Author Report Share Posted November 9, 2017 Thanks for the tips and advice. I’ll have to have a look at an overhaul kit. The genuine carbs are very expensive! Quote Link to comment Share on other sites More sharing options...
Mice! Posted November 9, 2017 Report Share Posted November 9, 2017 has ditchy gone missing since the upgrade? Can someone pop round and check he's ok Quote Link to comment Share on other sites More sharing options...
Me matt Posted November 9, 2017 Report Share Posted November 9, 2017 8 minutes ago, Mice! said: has ditchy gone missing since the upgrade? Can someone pop round and check he's ok Hes too busy stalking Motty ? Quote Link to comment Share on other sites More sharing options...
getthegat Posted November 12, 2017 Report Share Posted November 12, 2017 Find a local garage that has a sonic cleaner ( and no it's not part of Doctor Who's Arsenal) Guys who tune engines often have them. Or you could try Carburettor Hospital in Essex or Rage in Holland if it's really that precious to you. They may be able to help. Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted November 12, 2017 Author Report Share Posted November 12, 2017 Thanks for the replies. It’s not precious to me but seems a waste to bin it when they are quite pricey new. Although a Chinese aftermarket one is as cheap as the rebuild kit! So I’ll go aftermarket now just to get her up and running, then I’ll see what I can do with the original. Quote Link to comment Share on other sites More sharing options...
Dunkield Posted November 12, 2017 Report Share Posted November 12, 2017 Having been pointed at it by someone online and used gallons of the stuff since I would drop it in bucket of Screwfix degreaser first. Maybe even twice. Then as the others have said very carefully dismantle it and blow any jets out with carb cleaner. Having rebuilt 4 filthy carbs recently it's just nicer starting with something slightly cleaner. You can do the rest on the dining room table then Quote Link to comment Share on other sites More sharing options...
Hendrix's rifle Posted November 12, 2017 Report Share Posted November 12, 2017 Get yourself a cheap sonic cleaner, degrease it as dunkield said, strip it down and put it in the cleaner, blow out afterwards and check everything is servicable then rebuild to spec, happy days Quote Link to comment Share on other sites More sharing options...
getthegat Posted November 12, 2017 Report Share Posted November 12, 2017 Beware Chinese copies. I run a small classic VW garage and the copy carbs are abismal, very unreliable, we won't work on them. One even melted the paint inside the float bowl with our higher ethanol percentage fuel, ( 10 - 12 percent now) begs the question, why paint the thing in the first place. They are built to a price not quality. Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted November 13, 2017 Author Report Share Posted November 13, 2017 Well I’ve bought a Chinese copy for now just to get it up and running and to find out what else needs work. But I intend to strip, clean and reuse the old one when I get chance to sort it. Thanks for all the advice! Quote Link to comment Share on other sites More sharing options...
Kev1gun Posted November 13, 2017 Report Share Posted November 13, 2017 As others have said just find someone with a Ultrasonic cleaner or buy one Maplins do a 3 litre model which i have and i have saved loads of carbs, just strip off the float bowl and bung it in for 30 mins on hot, comes out like brand new. Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted November 13, 2017 Author Report Share Posted November 13, 2017 29 minutes ago, Kev1gun said: As others have said just find someone with a Ultrasonic cleaner or buy one Maplins do a 3 litre model which i have and i have saved loads of carbs, just strip off the float bowl and bung it in for 30 mins on hot, comes out like brand new. Can I justify more gadgets that I’m not likely to use again?! What else can these be used for? Quote Link to comment Share on other sites More sharing options...
Dunkield Posted November 13, 2017 Report Share Posted November 13, 2017 Cleaning cartridge cases. Know anyone who reloads? They might have one already. Quote Link to comment Share on other sites More sharing options...
Jaymo Posted November 13, 2017 Report Share Posted November 13, 2017 Use mine for cleaning all sorts , and brass too of course. Quote Link to comment Share on other sites More sharing options...
Kev1gun Posted November 13, 2017 Report Share Posted November 13, 2017 You can clean glasses, jewelery, brass cases, all sorts of bits and pieces. Quote Link to comment Share on other sites More sharing options...
Medic1281 Posted November 13, 2017 Author Report Share Posted November 13, 2017 It’s cheaper to buy the new carb!! However, I do like gadgets! Quote Link to comment Share on other sites More sharing options...
Hendrix's rifle Posted November 13, 2017 Report Share Posted November 13, 2017 4 hours ago, Medic1281 said: It’s cheaper to buy the new carb!! However, I do like gadgets! Tell your Mrs its for cleaning her jewelry and jobs a good un Quote Link to comment Share on other sites More sharing options...
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