My 3B Coupe project - Total rebuild

[newsh]

Hence the reason to fit a main bearing girdle!

[DNA-S2]

Ripped from another website....

Overpowering

Overpowering engine blocks to the point of destruction was once fairly rare, but the explosion in popularity of aftermarket turbocharging/supercharging (a.k.a. "forced induction") and nitrous oxide (N2O) injection makes this a very real possibility for enthusiasts looking for more power. Before these technologies came to dominate the marketplace, engine horsepower was generally limited by the connecting rod's ability to withstand breaking at high RPM. Forced induction and nitrous work by increasing power throughout the engine's entire RPM range, making engine block strength the limiting factor. Stress-related cracking usually occurs in the area surrounding the engine's main crankshaft caps, known as the "webs." The webs act as a mounting point for the main caps, which secure the crankshaft to the block and bear most of the abuse.


Tonks4x4 - The Land Rover Specialist

By reading this my understanding is that you agree with my view Mr Tonka as he wasn't doing aftermarket turbocharging or running N2O .... ?


Danny
DNA Autocare Ltd

[DNA-S2]

My 3B Coupe project - Total rebuild

Just out of interest Andy
Did you had standard Crank bolts or ARP ?


Danny
DNA Autocare Ltd

[Tonks4x4]

By reading this my understanding is that you agree with my view Mr Tonka as he wasn't doing aftermarket turbocharging or running N2O .... ?


Danny
DNA Autocare Ltd

I have seen a fair few cambelt failures in my time in the Land Rover world, they tend to bend every valve, smash some of the followers, sometimes they snap the tappets and I have seen a few rocker shafts in half.

But to date have never been aware of any blocks that have cracked or suffered any ill effects after just a top end rebuild.

Out of interest Andy, is the main journal diameter of the diesel crank larger than the petrol Crank?


Tonks4x4 - The Land Rover Specialist

[AndyP]

I have seen a fair few cambelt failures in my time in the Land Rover world, they tend to bend every valve, smash some of the followers, sometimes they snap the tappets and I have seen a few rocker shafts in half.

But to date have never been aware of any blocks that have cracked or suffered any ill effects after just a top end rebuild.

Out of interest Andy, is the main journal diameter of the diesel crank larger than the petrol Crank?


Tonks4x4 - The Land Rover Specialist

Yes, crank journals are all the same with petrol and TDi cranks.

[DNA-S2]

Standard or ARP bottom bolts Andy?


Danny
DNA Autocare Ltd

[AndyP]

Started working on a replacement block, first job was to check this one for cracks! Then mask all the holes and notch the bottom of the bores for rod clearance



Found out that the darleks head is NLA from Audi, mine is pretty beat up so I've ordered a new core plug and will have a go at making one



Also wanted to do something with the core plug that feeds coolant to the turbo ( or is it the return? ) as mine has always weeped, £25 from Audi, sod that I'll make one of those too


Drill a hole in the core plug


And weld it in place


Job done


Just need to make up the line one the turbo is mounted


Got the back of the block marked up for the coolant socket

[newsh]

Standard or ARP bottom bolts Andy?


Danny
DNA Autocare Ltd

He's not listening Danny Lets try again.

[AndyP]

He's not listening Danny Lets try again.

Sorry ARP's

As a precaution I will get the block line bored with the ARP's as they have a higher torque seting than std bolts

[DNA-S2]

Oh ok ...
I have explained my view to you mate over the phone


Danny
DNA Autocare Ltd

[Error404]

Make sure you check it properly the morons that did mine bored it a thou oversize

[Jamo]

Hence the reason to fit a main bearing girdle!

The scandies run the diesel block without a girdle to over 1000 bhp with no issues.

I wonder if the ARP was over torqued myself and caused a crack that has worsened over time.

[Error404]

yup or the stud bottomed out in the saddle

[irishs2]

Just having a look back through this thread, and was wondering what material you used for the pillar trim, and what black paint you used?

Thanks

[AndyP]

Just having a look back through this thread, and was wondering what material you used for the pillar trim, and what black paint you used?

Thanks

The pillar trims were covered in some fake Alcantara I got from Ebay, they were easy to do but the headlining turned out to be a nightmare, I had a couple of goes before giving up and getting it flocked! I'll put some pics on at the weekend.

The paint was just regular Satin black car paint from Halfords, I just scuffed up the plastic first and then de-greased them, primed and top coat.