3.0 TDV6 broken crankshaft / engine rebuild

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13th October 2022, 06:49 PM
Fabsky

Quote:

Originally Posted by akovach

Just wondering why you didn't take the body off? You spent 3 days getting it out with a remarkable effort. A workshop can get the body off in about 4 hours making the engine removal so much easier. Wondering more out of curiosity.

1) Graeme
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https://www.aulro.com/afvb/images/misc/quote_icon.png Originally Posted by akovach https://www.aulro.com/afvb/images/bu...post-right.png
Just wondering why you didn't take the body off? You spent 3 days getting it out with a remarkable effort. A workshop can get the body off in about 4 hours making the engine removal so much easier. Wondering more out of curiosity.

A brother recently removed the body from his RRS using a friend's 2-post hoist which took him 3 full days.

2)
PerthDisco
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3.0 TDV6 broken crankshaft / engine rebuild

https://www.aulro.com/afvb/images/misc/quote_icon.png Originally Posted by akovach https://www.aulro.com/afvb/images/bu...post-right.png
Just wondering why you didn't take the body off? You spent 3 days getting it out with a remarkable effort. A workshop can get the body off in about 4 hours making the engine removal so much easier. Wondering more out of curiosity.

Because doing DIY the car will need to be out of action for possibly a very long time finding parts and once body removed using a hoist you are in an awkward position what to do with it. Even pushing the engineless hulk back into a corner of the workshop might not be possible for months. At least this way it’s in a place it can stay.

My experience is it’s about a 4-6 month process allowing for parts sourcing shipping and all associated phaffing around.

Generally answering the question .. nothing else to add.
13th October 2022, 07:05 PM
ATH

Whilst looking around at new cars to maybe replace the D4, I saw that new Ford Everest Sport and Platinum are running 3ltr V6s. Aren't these the same engines as our Discos are running? If so, why won't they fit if we do suffer the unimaginable?
Anyone know what the difference is, if any?
AlanH.
13th October 2022, 07:20 PM
Fabsky

8 Attachment(s)

Going further after the initial analysis, we have evidence of what happened...

Attachment 181350 Attachment 181354 Attachment 181355 Attachment 181356 Attachment 181349

Attachment 181353 Attachment 181358 Attachment 181360
13th October 2022, 07:29 PM
PerthDisco

3.0 TDV6 broken crankshaft / engine rebuild

Quote:

Originally Posted by disco gazza

Just shy of $11250 Aust.
Not bad..

DG

As long as broken crank hasn’t ruined the block overheating could be worse as leads to cracked bores and definitely warped ali heads all which needs stripping, fixing and rebuild. The OP could get away with everything above the crank as-is possibly ( save for gaskets and a light refresh).

Will be really interesting to see the damage report. Is it anew coffee table or not?
13th October 2022, 08:09 PM
Discodicky

Quote:

Originally Posted by Fabsky

Going further after the initial analysis, we have evidence of what happened...

Attachment 181350 Attachment 181354 Attachment 181355 Attachment 181356 Attachment 181349

Attachment 181353 Attachment 181358 Attachment 181360

This is a bit of a worry, since unless my eyes deceive me, there is no apparent sign of seizure caused by spun bearing shells blocking off oil flow, followed by/causing broken crankshaft.
Rather, it looks like the shaft just simply broke for no obvious reason???
I hope that was not the case!
Can you comment please as to your thoughts why it broke?
13th October 2022, 08:40 PM
Graeme

Even appearing to have been part-cracked for some time, but perhaps just the light.
13th October 2022, 08:45 PM
PerthDisco

You can see that tiny flange between pistons 1/2 and 3/4 has the weight of the world on its shoulders being furthest from the flywheel end. It is definitely the weakest link in the chain.
13th October 2022, 08:49 PM
SimmAus

Quote:

Originally Posted by disco gazza

Just shy of $11250 Aust.
Not bad..

DG

Understatement of the year…
13th October 2022, 08:54 PM
Fabsky

Quote:

Originally Posted by Discodicky

This is a bit of a worry, since unless my eyes deceive me, there is no apparent sign of seizure caused by spun bearing shells blocking off oil flow, followed by/causing broken crankshaft.
Rather, it looks like the shaft just simply broke for no obvious reason???
I hope that was not the case!
Can you comment please as to your thoughts why it broke?

Yes that's right, it looks like none of the crankshaft shells have turned. On the other hand, it can be seen that one of the crankshaft support bearing shell is heavily worn. I think that it could be defective, which contributed to the beating of the shaft at both ends, which can be inferred from the visible worn outer shells. The crankshaft was subject to vibrations and due to material fatigue, it simply did not resist and cracked.

I would like to know the opinions of more experienced colleagues.
13th October 2022, 08:58 PM
Graeme

Quote:

Originally Posted by PerthDisco

You can see that tiny flange between pistons 1/2 and 3/4 has the weight of the world on its shoulders being furthest from the flywheel end. It is definitely the weakest link in the chain.

and there's a hole through the middle of it!

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