Tell Me What Happened To My $$$ Engine...

[Beer Baron]

She's run a big end, driver has continued on,  rod grabs and chucks itself out....Pretty usual RB  behaviour..... 

NB.  The blueing on the rod big end is the givaway as to the event sequence........

<{POST_SNAPBACK}>

i reckon we may have a winner here.

[mid life crisis]

was it in a street or track engine? if the motor was used for motor sport your on ya own . if it was a street motor i would be talking with the engine builder for some sort of compersation also depending how many ks the engine had done of course .but i reckon it looks like rod bolt failure to me .

[fatz]

if it was built in japan and just gave up

my guess was

previouse engine owner spun a bearing ( thought shit this will cost)

pulled off the sump replaced bearings put her back to gether running and sold her at the auctions

on tight arse jobs he probably just slapped teh bearings in and dindt torque it down properly

the 1000km later because the previouse owner didnt fix the actuall problem for the bearing failure you have had the same drama but obviously the dirver dint here the rattle before it was too late

if built in australia and is only fresh there are 1000 other reasons

pete

[Blitz]

I think thats another viable possibility there Pete

What a shitter

[NissanFreak]

In leaning to a join effort oil starvation/rob bolt failure

[wrxhoon]

You say you wasnt driving it, was it knocking the last time you drove it ?

If yes the big ands gave up due to oil starvation , spun kept driving and the rest ..........

If it wasnt knocking then the dodgy patch up job has more weight , like pete said . Either way if the engine was recently built well i wouldnt gat tem to build mine ..

I feel sorry for you Charlie , something like that happen to me about 3 years ago. Mine a turbo spat the wheel out and stuffed the engine while someone else had the car and took it around the block, he even lost it and hit the kerb !!!

[R31Nismoid]

She's run a big end, driver has continued on,  rod grabs and chucks itself out....Pretty usual RB  behaviour..... 

NB.  The blueing on the rod big end is the givaway as to the event sequence........

God has spoken

[GTRgeoff]

She's run a big end, driver has continued on,  rod grabs and chucks itself out....Pretty usual RB  behaviour..... 

NB.  The blueing on the rod big end is the givaway as to the event sequence........

<{POST_SNAPBACK}>

I'm with Benno. There are even signs of heat spots on the journal face in the bearing cap.

Sorry but sounds like driver error (yet again) in that the foot didn't lift when the knocking started. Sure there might have been a little damage but not catastrophic.

[GTRgeoff]

You fan boy Ash. It won't get you any off the bill I'll wager.

[Mik]

She's run a big end, driver has continued on,  rod grabs and chucks itself out....Pretty usual RB  behaviour..... 

NB.  The blueing on the rod big end is the givaway as to the event sequence........

<{POST_SNAPBACK}>

It definately wasn't idling at the time it let go either...

[Turbine]

That looks pretty bad!@#&

Overtorqued rod bolt/s, undertorqued rod bolt/s???????

crunch.

If you ever find out what caused that to happen, post it on the reopt that engine fail thread.

[Roy]

She's run a big end, driver has continued on,  rod grabs and chucks itself out....Pretty usual RB  behaviour..... 

NB.  The blueing on the rod big end is the givaway as to the event sequence........

<{POST_SNAPBACK}>

LOL...when i saw the pic i thought something silly with a rod bolt...but there are those that know more then i ever will

[R31Nismoid]

You fan boy Ash. It won't get you any off the bill I'll wager.

One can only try.

Least im a regular :lol:

[blk180]

I think the people that had the thought it wasnt to bad took it for drive. i think you said you had a 9k limter and say they sat on it alway around the block. Question when you went and seen the car was the oil spilt all over there work shop floor or a least a new patch where it happen or was it down the road more.

Hope you sort it out

Brad

[Sydneykid]

First, let me say I am sorry to see an RB in that condition, hope the rebuild works out well.

You can look for all sorts of reasons, the one that sticks out for me is that it's #6. The one that suffers from detonation first, the one that suffers from oil starvation first, the one that runs the leanest etc. All that makes me lean towards big end bearing failure caused by eithe detonation or oil starvation.

For detonation, check the piston top. For oil starvation, look at the other bearings and the crank, there should be some signs.

I guess it's because I see blown up race engines all the time. But compared to the original build price, it's not a high cost repair by the look of it. Weld up the block, new/used crank, one rod, one piston, new bearings, gaskets and seals. Around $5K should cover it easily.

There may be hidden other damage, so be carefull when disassembling it. It is possible to cause more damage if close attention isn't paid to the process.

cheers

[NXTIME]

Blk180, The last time I saw the car was when I had it towed to the workshop after the initial problem developed. The car was tuned very conservatively to run on pump fuel, so it wasn't detonation. I am not sure about the oil spill location as I didn't see the car again until it was towed to another workshop.

Piston has also hit the head and bent 4 valves. Luckily, the head will be repaired.

[NXTIME]

She's run a big end, driver has continued on,  rod grabs and chucks itself out....Pretty usual RB  behaviour.....  sad.gif

NB.  The blueing on the rod big end is the givaway as to the event sequence........

It definately wasn't idling at the time it let go either...

<{POST_SNAPBACK}>

Correct.

[NXTIME]

I'm with Benno. There are even signs of heat spots on the journal face in the bearing cap.

Sorry but sounds like driver error (yet again) in that the foot didn't lift when the knocking started. Sure there might have been a little damage but not catastrophic.

<{POST_SNAPBACK}>

Exactly.

[NXTIME]

What rod bolts did you use?

<{POST_SNAPBACK}>

Rod bolts are ARP 2000's.

[NXTIME]

There are alot of things that I cannot say for obvious reasons, but I will say that the engine developed an engine knock which we initially diagnosed as a big end knock. So I had towed it back to the workshop to avoid any further damage.

I don't believe it is the engine builder's fault.