This doesn't look good...pics inside...

[Mr. Tune]

Took the head of the 18tm a few minutes ago to see what it looks like in there. Last sunday the truck overheated twice on me. The highest I temped it was 380 :eek:

Here's what it looked like. Doesn't look to good to me. What do you think?

[Ponch]

Is that metal scraps on the head or pitting etc?

[too fast]

were are your head shims

[destroy_my_revo_15]

yea whats up with all of the scratches around the edges of the piston? otherwise that looks just like my 2.5r does after 5+1/2 gals on it...

[Tex]

Time for a new motor.....Damn two motors in one day, sheesh....

[snakebite46]

Looks like someones rear bearing in taking a dump.
Welcome to wonderful OS TM.

[thenewguy821]

Kinda looks like Firesprinks did, when the inner bearing seal exploded.

[Mr. Tune]

Head shim is on the table. I took it off before the photo shoot. The piston has little scrape marks, and so does the head. As if a little tiny piece of metal was bouncing around in there.

If a plug goes bad to where the wire breaks off, could the little pieces cause this much damage? Or did something else get in there?

[thenewguy821]

Looks like Rich and I had the same thought... lol


Just another reason I don't think I will be investing in an OS engine.


But Trinity is releasing a .20 drop in for the Revo.

[snakebite46]

Thats the bearing Tune.

[Sh1nn3r]

Sucks dude.

[Mr. Tune]

Dang I post slow. Like 3 posts squeezed in just a few minutes.

Rear bearing huh? What are the chances I blow the rear bearing on 2 motors in the same day?

Would this explain the high temps too?

[snakebite46]

If they are OS......chances are good. =)

[Mr. Tune]

At least I lucked out with the HPI motor. That one should be warrantied. It should be at HPI's office by now.

[destroy_my_revo_15]

man you got lucky....the same day we met and my front bearing went out too....stay away lol j/k

[RobH]

At least I lucked out with the HPI motor. That one should be warrantied. It should be at HPI's office by now.

I had the front bearing on my OS .18 CV-RX go out, and Hobby Services replaced the motor.

[Michowski]

welcome to the world of owning an os motor tune. The tm's get like that after 2 gallons

[rocco79]

R.I.P. O.S. .18tm.


That blows john.... I hate those engines!!!


(sorry didn't edit nothing, I accidentally pressed this instead of reply...n00b)-Tex

[Tex]

damn, first the TM'a are worth their weight in gold, then they are worse than a pile of dog poo.....it's weird how things change

[FreeRideFrosty]

Ouch... That is what the inside of my 2.5r looked like after it went kablooey! Mine never temped over 280 though... weird. Do I hear BB?? LoL

[rocco79]

Poor greek... when it rains it poors

[Mr. Tune]

LOL, now I gotta figure out what I'm gonna run on sunday.

[Michowski]

damn, first the TM'a are worth their weight in gold, then they are worse than a pile of dog poo.....it's weird how things change

There an awesome motor as far as power is concerned but they just dont last. If you race 2-3 gallons max you will get no matter the tuning. If you bash maybe 4 gallons because your not always pushing the engine hard. If they could get like 6 gallon they would be perfect but they dont so they suck because they only get 2 gallons.

[Tex]

I say get a BB or a RB323 for that thing Tune...the chassis can handle the power and if you set the slipper right the drivetrain can as well.

[maxximum_44]

R.I.P Little buddy alute: