Go Back  RCU Forums > RC Cars, Buggies, Trucks, Tanks and more > HPI Racing
Reload this Page >

Hpi g3.0 engine problem! Any help here would be appreciated

Notices
HPI Racing HPI Racing forum. Discuss all HPI Racing products here.

Hpi g3.0 engine problem! Any help here would be appreciated

Old 05-01-2016, 09:33 AM
  #1  
Lech91
Junior Member
Thread Starter
 
Join Date: May 2016
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default 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
Old 05-02-2016, 05:45 PM
  #2  
cbaker65
 
cbaker65's Avatar
 
Join Date: Jan 2012
Location: , CA
Posts: 419
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Lech91 View Post
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
It is getting hot when you can here it gurgling!

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!
Old 05-14-2017, 06:25 AM
  #3  
LostinLondon
Junior Member
 
Join Date: May 2017
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

With a g 3.0 try upping nitro to 20% 25% what are your needle settings? Are you sure it was run in sounds like it's still on default
Old 03-19-2020, 10:47 AM
  #4  
Bone yard
Junior Member
 
Join Date: Mar 2020
Posts: 16
Likes: 0
Received 3 Likes on 3 Posts
Default

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

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.