Unbelievable engine destruction!

[TK5310]

Happened last night, had a big crash last week, must have cracked the block.
She was running a little odd, down on power a bit & refusing to idle.
Flipped it at a skate park & stalled, went to fire it up again & the head with the top of the block & sleeve still attatched popped clean off & landed on the ground next to the car as soon as she fired.
Couple of nitro guys just standing around looking at it & mumbling WTF just happened here..........

 

[alien13]

Well I guess if you're gonna wreck it, wreck it right!

 

[Rolex]

It might be a little difficult to start and tune with that air leak.

 

[srusinek]

Man i wish i could tune like that. I would love to be able to have an intake like that. I'm so jealous

 

[HPI-Killer]

Man i wish i could tune like that. I would love to be able to have an intake like that. I'm so jealous

Lol the filter isnt anything special, just a regular filter on super steroids.
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Damn, that woulda broke my heart watching that pop off...

 

[Ballen]

DAAAAAAAAAAAAAAM that sucks.... I'll race ya you use that and i will push mine

 

[MudSlinger33]

I have never seen a block crack like that! :whhooo:

 

[TK5310]

Got a new motor already, $70 ebay special off a mate, brand spankers 3.3.

That motor was no great loss, was just an old clunker with an ebay sleeve, piston, rod & cooling head.

What freaks me is that it was running for quite a while with the top of the block almost cracked off - on the crack parting line there is fretting where the metal was moving around, the fresh break metal is only 2 sections about 6mm across, the rest was cracked through for a while. The tumble on the scate park was just enough to break the small sections that were still holding on.
Explains why it wouldn't idle & tuning was a bitch!

 

[Metalhead Matt]

Jb weld that pig back together! Get another gallon through it!

 

[Phins Fan]

I remember when I first joined here that someone else had the same/similar thing happen to them where the head and a couple of the first fins from the block came completely seperated just like yours. I think it was a 2.5 Too bad but at the same time what fun!!

 

[TK5310]

Jb weld that pig back together! Get another gallon through it!

For sh|ts & giggles I may just do that LOL, got some heavy duty metal repair epoxy, sleeve looks ok, piston is a little beat up but meh.
Couple of longer head bolts right down through the head into the block, liberal dose of epoxy & see what happens.
Wonder if I can get it to run again, even for a few minutes?

 

[REVO-5309]

lol do it.

 

[MudSlinger33]

Sounds like a challenge.

 

[TK5310]

Ok, I'll have a shot at it, I'll pull it out tonight, provided the piston can be made to go back in the sleeve I can't see too many reasons why I can't make it run again!
Rod is fine (believe it or not, stock 3.3 rod survived), crank turns fine, head has some debris pounded into it but nothing that won't polish off.
Gotta dig up some longer screws for head bolts, other than that I won't replace anything.

 

[MotoGod]

Now that's how you destroy a nitro engine! Bravo! hahahaha

 

[red bob]

reply

you never know,we use high performance epoxys to hold 100 ton press tools
together;and it takes a solid wack with a mallet to unstick it so it might well
hold the head on although the glue point would have a strong heat build up.
the other use is on the body shells i build up a layer at the stress points and havent had a shell crack yet.

 

[Greywolf74]

Gg!!

 

[TK5310]

Had a closer look at the old motor, crank is chewed up, rod bushes are shot, rear bearing is dead - not gonna bother trying to get it too run, the whole thing is scrap!

Got the new motor in along with a new bigger ofna carb, had to make an adaptor plate for the throttle linkage, machine the carb neck down to fit the trx engine & move the roll bar a little, but it fits nice & the linkage works well.
Made up 2x adaptors & machined 2x carbs to fit, so we'll throw the other one on a mates car & get it tuned about right, then I'll copy the needle settings to break mine in.
Headed out tonight for the tedious task of break in, should be interesting to see how a 3.3 with a big carb, buggy header & THS pipe running on 25% goes in a short wheelbase revo 2.5 chassis.

New engine in complete with ofna carb:

 

[Greywolf74]

I could be wrong but having that pipe sticking way out like that seems like a good way to get it busted off.

 

[REVO-5309]

Lol yeh looks nice and close to the ground