Didnt break in my engine
 

does this cause permant damage or if i rebuild it when the time comes will it be fine?

also how will i be able to twll if my engine is blown. it wont start but i guessing it is the plug becuase the glow plug light doesnt light up on the ez starter.

RE: Didnt break in my engine
 

not running in your engine can cause major problems

your engine will have a much shorter life, it will not perform as well it should do for the rest of its life & you may find it more difficult to tune/start, running a nitro engine in is essential, running an engine in allows the components of the engine to "bond together" so to speak, it allows all the parts to run smoothly etc.. think of it as a bicycle chain :P

a dry bicyle chain is stiff & you can feel the resistance when u try to turn the peddles by hand... an oiled chain after you have turned the peddles few times makes it turn alot smoother with very little resistance :-) ...although a nitro engine aint a chain, i think you get the idea now :-)

As for weather or not its blown your engine, i doubt it, but then it depends how hard you have ran it, if you have had it on WOT on your 1st tank of fuel this s the worse thing to do :P

if it aint starting check ya glow plug, check fuel is going to the carb when u prime it etc, easy way to see is take air filter off then prime it...if you see fuel spitting into the carn you know its not a fuel blockage/prime problem & more likely the glow plug/starter or summit to do with the ez start

in future ALWAYS run-in a new engine!

RE: Didnt break in my engine
 

WOT on the second or third tank. first tanks was pretty easy. second was getting it up there and touching top speed, lots of varying speeds, and more and more touching top speed as i went. but i wasnt keeping it there too long becase it was my first car and i was still getting used to its handleing, it was only pinned for probably 5 seconds at a time during the first day.

RE: Didnt break in my engine
 

oh and will a rebuild fix its damage or does it extend beyond this.

RE: Didnt break in my engine
 

lol someone didn't read the direction did they? man what an expensive way to learn. there goes another 50-80 bucks. might as well change out the plug and drive it like it owes you money. was that the other way around. never done that before just change the plug and run it. how can you tell an engine is done. some of the symptoms are starts up fine when cold but looses or wont hold a tune after it get up to temps/ acts like its rich after tuning when cold. no power wont idle after it is warmed up w/o glow starter. no compression.

RE: Didnt break in my engine
 

if the engine is damaged, a re-build wont fix it, unless you mean re-build it with some new parts! ..piston sleeve etc.

RE: Didnt break in my engine
 

a dry bicyle chain is stiff & you can feel the resistance when u try to turn the peddles by hand... an oiled chain after you have turned the peddles few times makes it turn alot smoother with very little resistance :-) ...although a nitro engine aint a chain, i think you get the idea now :-)


nice analogy:)

RE: Didnt break in my engine
 

The processes of breaking in an engine is no more than seating the piston into the sleeve. Running it hard without doing a break in wearing heavily on the piston and sleeve. When this happens the piston and sleeve don't fit how they were designed to fit when the engine gets up to operating temperatures. Parts that don't fit as they should cause airleaks, which means less compression and there for much harder to start, keep running, harder to tune, and the pressence of "flame outs" (push on the throttle and the engine dies).

A rebuild and make an engine like new, if it's done right. Doing a rebuild right required a CLEAN work area and some rubbing alcohol. the rubbing alcohol is just to clean the parts and remove small bits of dust, dirt, or anything else. After the engine has the new piston and sleeve in it, a fresh glow plug isn't a bad idea either because you'll need to BREAK IN the engine this time to avoid having to rebuild it again anytime soon.

RE: Didnt break in my engine
 

My dad got a Tmaxx a few years ago and we did a proper break in, but never knew to use a temp gun when tuning it. We ended up running way too hot a couple times and now it doesn't run very good at all. Hard to start. We keep wearing out the one way bearing trying to get it started. Could a rebuild get this thing going again? (it was the old .15 engine) Can I get the parts needed from Tower Hobbies?

Or would it be better to just get a new engine for it?

RE: Didnt break in my engine
 

The TRX Pro .15 put out about .5 bhp, so it would be advisable just to buy a new engine and go from there. I would imagine the .18CV-RX(s) would be almost a direct drop in with about 3 times the power. It wont be able to use the EZ-start, but it has a pull start. If you go the pull start route, make sure there is enough room to fit one (there should be).

RE: Didnt break in my engine
 

rofl:D:D

RE: Didnt break in my engine
 

LMFAO OMG. Oh real good one there buddy. Yeah, somone didn't read the directions. For atleast the first tank or maybe even the second tank, I just set it on a stand and play very gently with the throttle by hand on the truck, don't even use the radio. I try to make sure it's broke-in before I hit WFOT (wide f@&%Kin' open throttle) for 5 secs. Wish you luck.

-Bry

RE: Didnt break in my engine
 

i would run it like it is till something lets go probley piston lol
and just buy another engine (please read the directions next time) but thanks for the laugh i needed that :D

RE: Didnt break in my engine
 

When you replace the piston and sleeve, it wouldn't be a bad idea to replace the con-rod and wrist pin as well.
Not breaking it in properly puts quite a bit of extra stress on the con-rod, and that could cost you your piston and sleeve at any random time.
But yes, a rebuild will fix the didn't break it in blunder if you replace the con-rod, too.
...Unless you ran it so lean and hot that it fried the crank bearings...

RE: Didnt break in my engine
 

i dont think it would be worth a rebuild... he could have possibly messed up the crankshaft too
so to do a good rebuild you would need to replace the crankshaft, connecting rod, wrist pin, piston, sleeve, and possibly even the button on the cooling head

imho i would do a rebuild it wouldnt be worth it [:'(]

RE: Didnt break in my engine
 

no i didnt run it too lean, it wa actually a turn and a quarter too rich for the first few tanks (probably why my glow plug went) but i didnt no this at the time. my cousin was getting his car fixed at the lhs and its my first nitro car and i had it with me so i figured i'd just ask the mechanic if i tuned it right. so he tuned it untill the settings were right.

RE: Didnt break in my engine
 

rich or lean doesnt matter at this point lol

RE: Didnt break in my engine
 

Yeah, don't be tellin' us how rich it 'was'. It don't matter anymore. lol.

RE: Didnt break in my engine
 

Don't let everybody get you down. I don't think you could have damaged the crankshaft...Or the button. What could possibly happen to the button? I have re-used a head button before that was in an engine that got a piece of sand in it, and was pitted up. My world didn't end suddenly and inexplicably...
Virtually all parts on your truck are consumable, replaceable parts...If it breaks, replace it.
But next time you rebuild, or get a new engine...Do a bit of research, and break it in properly. Either the factory suggested idle through a few tanks, or the heat cycle method.
I like the heat cycle method, myself.

RE: Didnt break in my engine
 

i was going to break it in, but temptation got to me. next time around i'll definatly do it.

RE: Didnt break in my engine
 

dont use this as an excuse when i beat you with my n-rustler

RE: Didnt break in my engine
 

On the contrary...It might not only be an excuse, it could very well be a reason;).

RE: Didnt break in my engine
 

yea i wanted to do the same with a old airboat that i had and i asked my bro if i could just run it and he slaped me in the back of the head (you learn real quick that way)

RE: Didnt break in my engine
 

wow. thats all i can say.

RE: Didnt break in my engine
 

Getting smacked in the back of the head sucks, for sure!!
But I guess getting smacked in the checkbook has it's own pain[:@].