Hpi g3.0 engine problem! Any help here would be appreciated
05-01-2016, 09:33 AM
#1
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Hpi g3.0 engine problem! Any help here would be appreciated
Here's my story: i decided over two months ago to dust off my old hpi nitro mt2 car, as any one woul expect it didn't start and i took it to my local dealer who suggested to buy a new engine, i got a new hpi g3.0; he got it installed and broke it in; it was running great until last weekend, the engine overheats and i am having any kind of behavior; first as it overheat it didn't run foward with the engine on and oil began to burn over the engine; i researched this and read that i mus have been running too lean and must have an air leak, so i got RTV and sealed just below tha heatsink, then oil came out of the exhaust tube (where it attaches to the engine) so i sealed it as well; then less oil came from the lower part of the caburetor, so i sealed it as well (just the base, not the needles) i reset the needles back to factory settings since the first overheat; now my engine is sealed, needles reset, but it still overheats, it starts great while its warm, but as soon as i start reving it up it begins stalling, then turns off and doesnt start when i try to turn it on again, also when its very hot i can hear something boiling inside; what would my next move be? I am using 600F resistant (red) RTV, 16% nitro fuel, my old mt2 chassis/servo and remote
05-02-2016, 05:45 PM
#2
Originally Posted by Lech91
Here's my story: i decided over two months ago to dust off my old hpi nitro mt2 car, as any one woul expect it didn't start and i took it to my local dealer who suggested to buy a new engine, i got a new hpi g3.0; he got it installed and broke it in; it was running great until last weekend, the engine overheats and i am having any kind of behavior; first as it overheat it didn't run foward with the engine on and oil began to burn over the engine; i researched this and read that i mus have been running too lean and must have an air leak, so i got RTV and sealed just below tha heatsink, then oil came out of the exhaust tube (where it attaches to the engine) so i sealed it as well; then less oil came from the lower part of the caburetor, so i sealed it as well (just the base, not the needles) i reset the needles back to factory settings since the first overheat; now my engine is sealed, needles reset, but it still overheats, it starts great while its warm, but as soon as i start reving it up it begins stalling, then turns off and doesnt start when i try to turn it on again, also when its very hot i can hear something boiling inside; what would my next move be? I am using 600F resistant (red) RTV, 16% nitro fuel, my old mt2 chassis/servo and remote
The only thing that I can suggest ,is to make sure that the fuel tank is clean & there is no leak from it.
Also ,make sure the cylinder head screws are tight ,an nothing restricting the tube that goes to the
muffler an tank ,that is the pressure tube that pressurizes the tank to help fuel flow to the carb....Good luck!
03-19-2020, 10:47 AM
#4
Junior Member
If the needles are flush with the needle housings then they are still at factory settings. If you had an air leak it would be hard to control the idle. Also I had an over heating issue with my traxxas jato 3.3 which turned out to be the bearings for the bellhousing. One of the bearings blew apart and was causing alot of friction.. if your truck wont move checkcypur driveline for binding and check the bearings related to the clutch.....just realized thread is 4 years old
Last edited by Bone yard; 03-19-2020 at 10:51 AM. Reason: Proof read
