Indecline099

this thread is for the os.18 motor, i see alot of different threads asking about the motor and i figured why not just have one thread about what fuel you use, glow plugs, mods, tuning, and trouble shooting

I'm planning to get one after my 2.5 dies, and i was wondering what the most popular fuel and glow plugs are being used?

beelzebubishere

My Feedback: (1)

crazy nick

My Feedback: (29)

I just pu t one in my revo. I ran first tank at idle. I let it get to temp and shut it down and let it cool for 1/2 hour or so. Did that throughout the first tank. I then Let it get to temp (around 200) and tried to drive it around very slowly as the book says. the temp would imediately shoot to 235 so I would then let it idle and it would cool back down. LSN too lean?

Indecline099

well 235 really isnt that hot, i wouldnt worry about it, unless it starts getting up near the 300's


im planning on heat cycling mine, it sounds easy to do and it doesnt take long

Gullwing72

I broke mine in per the manual and it never got above 240 through out the whole procedure. Now after a gallon or so through it and one tune it stays between 235 to 240 depending on the weather. I have it tuned a little on the rich side but after a couple of passes it picks right up and from that point on it is pulling the front wheels with just a tap of the trigger...........GW

Indecline099

awsome, thats the main reason why im getting an os, the ease of tuning, i cant wait till i get it

maxx0619

My Feedback: (1)

its a great engine. easy to tune and has plenty of power. mine has one gallon and going strong.

Stuck686

My Feedback: (2)

i have the Os .18 cv-rx. I run Traxxas 30% fuel. Got about a gallon and a half on the egine and still on the 2nd glow plug

bdd012

ok my dads got an OS TM, as well as me but on his if it quites while running it won't restart when its warm, not hot, warm. like if he wrecks and it quites, its a pain to start, and its not cause it dosn't have fuel. it has problems starting when its warm. any ideas?

Gullwing72

Never had that problem. Mine starts better warm or hot..........I run Traxxas 20% and Hobbico ARO. I change the air filter about every hour of bashing. If I am running in dirtier than normal conditions I change it more. We were running in crushed limestone Sunday, what a mess. I will never do that again. It took 2 hours to clean the truck. I realized how much more low end torque the TM has. The limestone pile was about 15 to 20 feet high and really steep. Out of the 3 trucks running I had the only OS and also was the only one who could make it all the way to the top..........GW

rcdude37

had my maxx out today and ran about 1 1/2 tanks through it (first time out for a good run in 6 months) ran the first tank with the body off, ran great didnt get hot or anything on a hard run, second tank put the body on and i haven't really ran the body on it with hard runs so no holes cut yet, untill tomrow! made the other tank about half down and it started gettin warm, i dont have a temp gun, just more of a knowlege thing, took the body off let it sit a few mins then decided to just call it a day before i broke something!
far as the engine goes.. i love the thing very easy to tune even with the 3 needle set up... has great power when needed or wanted... the head has a cool flame job done with it(admit it we all got them because of them flames on the head!!)

Indecline099

im still contemplating what fuel im going to use

traxxas 20%
blue thunder
or white lightning

i dont know much about the white lightning i think its more of a race fuel, i wanted to use O'donnals but the hobby town i go to doesnt carry it

Indecline099

what does 3rd needle control???

Gullwing72

mid range....I have never touched it.............GW

cardgabe

Yeah, I have about 13 or 14 tanks through my OS.18TM now. I love the torque and speed that it has, but I switched from O'Donnel 20% to Traxxas 20% fuel when I ran out of O'Donnel. Now it seems to bog down when I give it WOT from a dead stop. It won't do wheelies anymore either. Would this be an issue with my LSN? Once it starts going, it takes off really nice, but when sitting still and I floor it, it bogs a lil then goes. Maybe too rich on the LSN?

Indecline099

my guess would be too rich on the low end, if its bogging down after idling


i had a question about their 2 year warrenty, are you able to send in a motor that has run its course, and is dead and get a new one, or are you only able to do that if it dies because of some freak accedent and having it only for a month or a couple weeks

also whats the average life span in gallons of a properly tuned os18?, how many gallons have you run through your os so far?

JSRacer

Cardgabe, I don't think fuel brands could make that much difference. If there both 20% they're most likely alot alike as far as content. I would check your backplate. Tighten it up or seal it. It sounds like the same thing that I was going through about 5 tanks into it. I have a pullstart and the screws worked loose on the backplate from pullin the rope and it was boggy. Check it out.

Indecline099

how many gallons does everyone have in their .18tm

JDRACING

The RB TM323 is much better and less expensive. Trust me, I have both.

Indecline099

uhhh, ok thanks, anyways to the question at hand

JSRacer

I am absolutely positively sold on this OS 18TM. It's got a bunch of power and just purrs so sweet at idle. I think I need to go taller on my gears though. I'm on the lid a lot. But that's what I get for trying to master riding out the wheelies!

screamin chicken

I am thinking of gettig the os 18 for my REVO also,I take it that it just drops in with no problems, and where do i buy one, they are about 219 bucks here.....

alvinl

Tower Hobbies has $30 off right now on a $220 order. That's where I got mine.

Gullwing72

Well everyone in here already owns the OS and we are not looking into buying something different, so if it is not the OS .18TM we don't need to talk about it.....GW

Indecline099

i just went to tower and noticed the new savings deal, god i wish i had enough, im still saving up for one, should have it in another month or so

another question i wanted to know was, how did everyone break in their motor, im contemplating using the heat cycle method?