1107 carb question

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Thread starter #1
I fired up my rig yesterday... everything was running/doing great... then all the sudden the engine died like I was outta gas.. only I still had plenty in the tank.. I noticed the primer bulb was completely empty and if I attempted to reprime it it wouldn’t even try to suck any fuel into the carb... I checked all the lines filters and such.. everything seemed fine but it just wouldn’t prime at all... any thoughts guys?

Any advise would be greatly appreciated!
 
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#3
Had that happen to my weed eater last year, same thing. Found out the gasket wasn't cut right and when it got hot, it sweld up and cut the fuel off. Worth a try. The fuel hole was cut wrong and wouldn't let fuel thru when it got hot.
 
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Well I tryed it again this afternoon.. it started out great then did the same thing... so I did a pressure test on the engine exhaust included and discovered my carb throttle shaft was leaking severely... so I replaced it with a new upgraded 1107 carb with shaft bearings installed... presto! Leak gone... then while getting new carb adjusted the rod broke... joy.... guess it’s time to upgrade lol
 
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#6
I have had similar problems with 2 modified g320's. I have blown paper head and crankcase gaskets. The paper doesn't seem to be able to take the compression. In one case felt the air from the head and in the second saw fuel leakage and the gasket blown out. Replaced head with copper. Cannot find the gasket for the crankcase with reed box, area rc/DGI, if anybody knows where to get them.
 
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Originally it was a rovan 36cc... it ran pretty good imo.. but I wanted a little more so I decided to upgrade to an esp 32cc top end kit.. machined for a 2mm stroker crank.. which sounded mean as hell idling and seemed to run well considering I was still breaking it in... and I had the carb almost dialed in and while idling it just died and locked tight.. from what sounded like a broke rod at first but apon disassembly I found that the needle bearing on the crank had disintegrated and it locked at the bottom of the stroke... amazingly enough it didn’t hurt my new top end at all... yay.. lol so I’ve ordered a new stroker crank and a reed case to rebuild it with..
 

Buzzsaw46

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#9
I was considering doing an ESP top end on my Rovan case but decided it wasn't worth the risk since chunks of metal had gone through it, and the lower needle bearing felt a bit sloppy, case bearings felt a bit rough also.
 
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Yeah... apparently they can’t handle it lol.. glad I got lucky and didn’t ruin my new top end... should be a beast on an obr/tr Reed case.. we shall see hopefully have parts by Saturday to rebuild..
 

Buzzsaw46

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#13
I'll bet, I would surely be stoked. I'm looking forward to getting some more time on my new ESP race ported 34, sent my Hitec SGT1000 servo in for service so that truck is setting idle till the servo comes home. On the bright side my back up truck with the ESP stroked 34 is rocking this year after a TLR Chassis and drive line makeover.
 
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#14
I fired up my rig yesterday... everything was running/doing great... then all the sudden the engine died like I was outta gas.. only I still had plenty in the tank.. I noticed the primer bulb was completely empty and if I attempted to reprime it it wouldn’t even try to suck any fuel into the carb... I checked all the lines filters and such.. everything seemed fine but it just wouldn’t prime at all... any thoughts guys?

Any advise would be greatly appreciated!
your probably running a 32 and they suck fuel. your too lean on the high needle, richen the high needle. do a couple of runs and bring it to check the fuel bulb if its not filled with fuel make another adjustment. Also install a snappy fuel kit with a breather to prevent fuel lock and use a larger diameter fuel line 5/32 will also hold more fuel
 
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