I have an SH .28 on an exceed rc mad beast. I burnt out the spur gear and changed it out, i had to take the motor out to change it but now the engine will not start or run right. If it does start, it revs up to full speed and then dies out. I dont know what to do, i have been messing with it for days, i can't get the engine to run please help.
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SH 28 Freak Please Help
- Thread starter grab12
- Start date
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What caused you to burn out the spur gear? Did you land on the roof and hit the engine on the ground causing it to move?
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Without starting the engine, take off the air filter and look into the carb. With only the Rx and radio on, make sure the throttle is working properly.
Turn down the trim tab on your Tx. Adjust the linkage if it's sticking or hanging up. Just a few of the basics.
Turn down the trim tab on your Tx. Adjust the linkage if it's sticking or hanging up. Just a few of the basics.
- Thread starter
- #5
I did all of these things, i checked everything. it wont run without the glow plug heater in either as soon as i pull it out it dies. i tried to put it bck to factory settings but no luck, looking for ideas on what to try next
Is the glow plug good?
Sounds like your GP is dead and needs replaced or your running way too rich.
vbgagnon
RCTalk VIP
It may glow, but doesn't mean that it is at 100%. Try a new glow plug, another guess would be that you've got an air leak somewhere.
Scrogg
Hardcore RCTalk User
I agree, but the revving up on it's own might be another issue.
Pulll the carb O-rings and inspect them, make sure your exhaust and fuel system are leak free.
I had one engine do this to me before..... in my case the HSN housing loosened up just enough to suck air in around the banjo fitting.
Scrogg
Hardcore RCTalk User
Your LSN may be set too lean. It should only idle up for a few seconds then die when it is low on gas.
Richen the LSN and then lean the HSN if performance is bad.
SH engines usually do not need much adjustment from the factory setting on the LSN.
Richen the LSN and then lean the HSN if performance is bad.
SH engines usually do not need much adjustment from the factory setting on the LSN.
- Thread starter
- #13
well i got it to run for about 5 minutes, it was idling really high even after i turned the idle srew, it ended up burning out the spur gear and also was smoking (the engine). I put it away and i am going to give up on it i think. I dont know what happened, it ran fine for the first couple of days now it is usless.
Go to your LHS and let them have a look at it.
