Harryaus

I still cant believe this happened to me today at L.R.R.C.C today in my 8 T 2.0. Check this out an let me know if this has happened before http://www.youtube.com/watch?v=B5iOvmP6hEU

smelly62

iTrader: (25)

What was the main bearing like?

nv529

iTrader: (53)

55 liters on stock rear bearing?

RCmayor

iTrader: (9)

Ya thats what I thought, 14 gallons is pretty good. lol

Harryaus

I had changed both bearings a while ago, but the bearings I just pulled out are slightly damaged from small pieces metal. piston had plenty of pinch was still going hard.

Harryaus

One thing I will stand by is OS SPEED. I will never change brands, Ive used a few other brands in the past and most gave me headachs. Ive pushed this engine so hard, im surprised how it always performed. Now its time to get a spec II

bobbyc1127

iTrader: (7)

I have seen them crack the block. right where the motor mount bolts to. But I had only seen 2 do that. BUT 14 gallons I am impressed on an OS V-Spec.

TIX

iTrader: (17)

Ive done that before. Its from the engine slapping the chassis. If its 14gal old then its most likely done plenty of slapping out on the chassis over time. Thats a very thin part of the block.
At FEMCA last year they had a log section that you'd slap the chassis on if you got it wrong. Cost me an RB C6USA Rody.
If your really worried about it happening again just put some washers between your mounts and the engine or buy the m2c engine spacers

Rsickles

iTrader: (21)

You said in the video 'the conrod went through the crankcase'.

What did the crankshaft/crankpin, backplate, and rear bearing look like?

If the rear bearing was fine and the crank/crank pin is fine, there's no way the rod would've been able to smash into the bottom of the case like that; I'd say TIX is probably right.

juzza99

iTrader: (1)

Lol. Nice one harry. You did a good job on that mate.

Matt Piva

iTrader: (25)

So the whole engine flexed or your crank pin broke shooting the bottom of the rod threw the case? I watched the video and it sounds like no parts failed? How that happens is a scary thing I am now going to fear when running my speeds

TIX

iTrader: (17)

All engines flex. At 14 gallons it's an old engine. Lrrcc is a pretty hard track so it's not something that's all that surprising

got_nitro

iTrader: (24)

That's a cute block hole. Great way to ruin a man's 10 seconds.

Harryaus

Yeah was getting old but still had plenty power for its age. I have a heavy throttle finger and that engine has copped a lot of slap's in its days. I did change bearings bout 8 months ago but not since then. Im surprised how well this engine performed over its with me always pushing it hard, highly recommend os xz-b

Harryaus

LOL only I could do that