53HRA Posted July 25, 2016 Share Posted July 25, 2016 I have got hold of a Losi DBXL in great condition. There is one problem however and that is, when I hold the throttle the vehicle moves around 5 inches then stops (revs but doesn't shift). The engine stays on and it idles perfectly. The diffs and gears all engage and the radio (Futaba 3PL) is blinded correctly. ive narrowed it down to the clutch although this seems to be ok when I rev it? When the car is off the floor it is still very slow and does the same. No joy adjusting the needles either. Any ideas please? Quote Link to comment Share on other sites More sharing options...
andyknight Posted July 25, 2016 Share Posted July 25, 2016 Does it rev all the way up to max rpm? Quote Link to comment Share on other sites More sharing options...
chrisknights Posted July 25, 2016 Share Posted July 25, 2016 any chance you can post a short video up when you can Quote Link to comment Share on other sites More sharing options...
andyknight Posted July 25, 2016 Share Posted July 25, 2016 Also can you roll the car freely backwards and forwards without anything binding/jamming? Quote Link to comment Share on other sites More sharing options...
53HRA Posted July 25, 2016 Author Share Posted July 25, 2016 9 minutes ago, andyknight said: Does it rev all the way up to max rpm? I wouldn't say it doesnt no mate 9 minutes ago, chrisknights said: any chance you can post a short video up when you can Ill try and get one assp 7 minutes ago, andyknight said: Also can you roll the car freely backwards and forwards without anything binding/jamming? Yeah moves freely with no issues! Quote Link to comment Share on other sites More sharing options...
losi8igh Posted July 25, 2016 Share Posted July 25, 2016 Sounds like the clutch is gone. When it is off the ground there is no weight on the wheels so what is left of the clutch is engaging enough to make the wheels move all be it very slowly. When it is on it's wheels on the ground what is left of the clutch isn't enough to provide any positive drive. 1 Quote Link to comment Share on other sites More sharing options...
chrisknights Posted July 25, 2016 Share Posted July 25, 2016 spring might of broken on the clutch Quote Link to comment Share on other sites More sharing options...
losi8igh Posted July 25, 2016 Share Posted July 25, 2016 If the clutch is worn that much it will just be metal on metal with next to no grip between the clutch and the clutch bell. Quote Link to comment Share on other sites More sharing options...
Oh How Original Posted July 25, 2016 Share Posted July 25, 2016 Clutch sounds like the culprit. Quote Link to comment Share on other sites More sharing options...
53HRA Posted July 25, 2016 Author Share Posted July 25, 2016 Here's a quick clip Quote Link to comment Share on other sites More sharing options...
Oh How Original Posted July 25, 2016 Share Posted July 25, 2016 Says renamed or deleted. However, just check the clutch, it's not a big job to do and 99% it'll be that. Quote Link to comment Share on other sites More sharing options...
.AJ. Posted July 26, 2016 Share Posted July 26, 2016 8 hours ago, 53HRA said: Here's a quick clip @Bigjimknickers DBXL done exactly the same, I can't remember what the problem was tho Quote Link to comment Share on other sites More sharing options...
Bigjimknickers Posted July 26, 2016 Share Posted July 26, 2016 Mine Was the engine jammed, It had moved & was rubbing on the chassis so it started but wouldn't drive! Quote Link to comment Share on other sites More sharing options...
R46 Posted July 26, 2016 Share Posted July 26, 2016 Don't sound like clutch issue tbh, what is oil/fuel ratio using? Choke is off? Drop in a new spark plug as current could be bad. Hopefully needles haven't snapped in carb... Quick checks I'll do 1. check air filter element isn't soaked as that will hamper pick up. 2. Check ignition coil air gap (too large a gap no thottle response/pickup) 3. Reset needles Low 1 and 1/4 turns open High 1 and 3/8 turns open fire up an see if improved Quote Link to comment Share on other sites More sharing options...
53HRA Posted July 26, 2016 Author Share Posted July 26, 2016 R46 i'll give that a try too cheers! Heres the results of the clutch Appears to be in decent nick? Quote Link to comment Share on other sites More sharing options...
R46 Posted July 27, 2016 Share Posted July 27, 2016 Yep clutch n spring fine Quote Link to comment Share on other sites More sharing options...
ibo Posted July 27, 2016 Share Posted July 27, 2016 1 Quote Link to comment Share on other sites More sharing options...
chrisknights Posted July 27, 2016 Share Posted July 27, 2016 Do you no what carb you have in your car ?? Quote Link to comment Share on other sites More sharing options...
53HRA Posted July 27, 2016 Author Share Posted July 27, 2016 A simple but silly problem! @R46 is the winner and solved it It was the air filter soaked in fuel/oil. Quick clean and is running perfect. Thanks to all for your input @chrisknightsit's the stock one bud Quote Link to comment Share on other sites More sharing options...
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