fuddy-mucker Posted August 13, 2014 Share Posted August 13, 2014 Hi all, My mta4 s28 has been sat on the top of my wardrobe now for the past 2-3 months having spent over 200 quid upgrading and repairing its yet again... bust. The dual tank setup doesnt work, tried alsorts and only thing i can think is there is not enough pressure from the exhaust to regulate fuel flow. The front left wheel melted ( around the securing wheel nut) due to doing donuts. Still need a servo saver for steering servo Im sick of this thing breaking every time i take it out. Usually lasts an hour before something breaks ( lucky i take my box etc full of bits and tools). So... how do i make this truck bullet proof or as near as? Reliable and strong? S50 upgrade ? I.e gearbox, cvds , engine , wheels and all bolts to go with ? Over time upgrade to rpm arms and knuckles? Rob Quote Link to comment Share on other sites More sharing options...
MrPug Posted August 13, 2014 Share Posted August 13, 2014 (edited) Sounds like you bash pretty hard so expect it to break every time I'd be quite happy if mine lasted an hour when I'm ragging it. Donuts with wheels and tyres that big is going to strip the hexes all day long. On mine I used to use putty cement to bond the hex to the wheel. Then I used two locking nuts on each wheel. I didn't have any problems after that. Edited August 13, 2014 by MrPug Quote Link to comment Share on other sites More sharing options...
Cammie838 Posted August 16, 2014 Share Posted August 16, 2014 You could get alloy hexes, but if your driving style stays the same, that will as you say melt the wheels eventually with the doughnuts lol.. If you upgrade one part, something else weaker down the chain will break, its just a viscious circle and a money pit! For me, part of the fun of the hobby is fixing it again once I've been out and trashed it lol. My mrs does her nut coz I'll spend hours in the garage with 'em! Quote Link to comment Share on other sites More sharing options...
fuddy-mucker Posted August 16, 2014 Author Share Posted August 16, 2014 Certainly a money pit. Aside from the doing doughnuts it has broken numerous times. One of which ive just remembered is the bearing retainer for the clutch bell. It disintergrated while i had it running in the back garden. In your oppinion guys.. The truck was bought brand new in june 2014 so still pretty new. The engine has been meticulously run in and had just 1 and half gallons of byron gen 2 race fuel (25%) through it. Would i be better off upgrading to s50 equipment i.e Engine Gearbox Diffs? Hex's Wheels Cvds? Part of the fun is fixing but i spend more time and money repairing than running... or... should i have gone down the electric route? Thanks Rob Quote Link to comment Share on other sites More sharing options...
fuddy-mucker Posted August 16, 2014 Author Share Posted August 16, 2014 Certainly a money pit. Aside from the doing doughnuts it has broken numerous times. One of which ive just remembered is the bearing retainer for the clutch bell. It disintergrated while i had it running in the back garden. In your oppinion guys.. The truck was bought brand new in june 2014 so still pretty new. The engine has been meticulously run in and had just 1 and half gallons of byron gen 2 race fuel (25%) through it. Would i be better off upgrading to s50 equipment i.e Engine Gearbox Diffs? Hex's Wheels Cvds? Part of the fun is fixing but i spend more time and money repairing than running... or... should i have gone down the electric route? Thanks Rob Quote Link to comment Share on other sites More sharing options...
MrPug Posted August 17, 2014 Share Posted August 17, 2014 (edited) Out of the things you've mentioned it doesn't sound like much has broken... What exactly is failing on the truck? Jumping this truck will break stuff unless you are landing it perfectly each time. To get mine jumpable I changed the shock springs and oil, put rpm arms all round and added a second roll bar in case it landed on its roof. Edited August 17, 2014 by MrPug Quote Link to comment Share on other sites More sharing options...
fuddy-mucker Posted August 17, 2014 Author Share Posted August 17, 2014 Sorry i dont understand. Quote Link to comment Share on other sites More sharing options...
MrPug Posted August 17, 2014 Share Posted August 17, 2014 (edited) Sorry i dont understand.Post sent too early stupid phone lol. I've edited that response Edited August 17, 2014 by MrPug Quote Link to comment Share on other sites More sharing options...
MrPug Posted August 17, 2014 Share Posted August 17, 2014 (edited) As far as your list is concerned if you are sticking with the standard .28 engine all other parts should be fine. If you are putting in a bigger engine, you may need the s50 gearbox, but the diffs are okay on the s28. Cvds and hexes are fine. Just glue the hexes into the wheels. Edited August 17, 2014 by MrPug Quote Link to comment Share on other sites More sharing options...
fuddy-mucker Posted August 17, 2014 Author Share Posted August 17, 2014 Oh sorry lol So far hes whats been changed, Copper firm springs all round Steering servo ( hd150mg but broke on first run) Dual tank upgrade ( doesnt work tho due lack of back pressure from exhaust Things that have gone wrong from memory are... The pullstart and backplate threads had been over stretched by whoever built the truck ( had to use helicoils screws) One of the front suspension knuckles had broken Broken a wheel Dual tank to stop it leaning out halfway through the standalone tank doesnt work for reasons above leaving the truck with the original one tank which after 5 mins runs lean through the tank. To resolve the back pressure issue would fitting the bigger s50 engine sort this? I.e bigger engine, more pressure, able to run two tanks ? Upgrade to stronger s50 wheels as plastic seems crap and brake to easily. Needing the hexs n cvds to do so? S50 box to cope with the torque of the s50 engine i.e metal gears. If the above mames se se and would work, fitting the gpm plastic ( blue) arms and knuckles should sort out alot of the issues right? Rob Quote Link to comment Share on other sites More sharing options...
MrPug Posted August 17, 2014 Share Posted August 17, 2014 If your servo broke first run I would guess it was over extending and this stripping the gears. The standard s28 wheels and tyres should work fine. To be honest if you want the s50 gearbox and engine I would just buy the whole s50 truck. Quote Link to comment Share on other sites More sharing options...
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