Breakdown

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
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Shoppinit
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Re: Breakdown

Post by Shoppinit » Fri Oct 11, 2024 4:48 pm

srichards wrote:
Fri Oct 11, 2024 4:38 pm
Found a calculator thing. 184 for 444 bhp turbo and 207 for 500bhp turbo.

https://www.calculatorultra.com/en/tool ... lator.html
Nice.

/bit sparse on calculation method, though
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Sat Oct 12, 2024 10:08 am

Just been looking at the details of the compatible pump from rs components. In the absence of an original pump. This is the one I would go for.
Great find Shoppinit.
I have bought lots of parts from them in the past. Great company to deal with.

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Sat Oct 12, 2024 10:35 am

Somebody buy one and tell us which Pierburg pump it is. :)
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Wed Oct 16, 2024 4:15 pm

IMG_0305.jpeg


Tiny piece of R8 arrived to replace the nasty blue plastic one.

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Wed Oct 16, 2024 4:44 pm

At a Chinese takeaway. Car won’t start.
This time not recording on the rev counter.

Looks like I have two problems.
Crank position sensor
External fuel pump.

With a bit of luck car will start when the car has cooled down.

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Wed Oct 16, 2024 4:46 pm

What are the chances. You sure the rev counter was moving the previous times you started? I can't recall offhand what the tacho does when the engine is turning over.

Possibly your car will start when the engine cools down a bit. Possibly.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Wed Oct 16, 2024 5:30 pm

Hi Ben. Yes mate previously the rev counter was moving when I was cranking the engine over. Hence referring to a faulty fuel pump. Tapped the fuel pump and she started straight up.

Tonight nothing on the rev counter while cranking the engine over. Still I tapped the fuel pump. Still nothing.
Waited approximately 20 mins gave it a try and it started.

What are the chances of a fuel pump and a crank sensor failing at the same time.

Thankfully I am now back home.

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Wed Oct 16, 2024 6:32 pm

Phew. I wouldn't drive it again until you get the crank sensor sorted.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Wed Oct 16, 2024 7:16 pm

Or risk it. If it does fail. Leave it a while, let it cool down and hopefully it starts up.

Why does it start when you leave it to cool down ?

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Wed Oct 16, 2024 7:42 pm

I’m guessing the constant heat cycling has caused a fracture in the coil. When it cools and contracts it probably makes an electrical contact again. Just a theory.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Shoppinit
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Re: Breakdown

Post by Shoppinit » Wed Oct 16, 2024 7:43 pm

Might be heat soak that causes it to stop working when you leave the car and come back to it a short time after. The sensor has time to get nice and hot with no air flow.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Wed Oct 16, 2024 9:03 pm

CheeRS Ben.
That sounds logical.

111marc111
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Re: Breakdown

Post by 111marc111 » Wed Oct 16, 2024 10:23 pm

When my crank sensor failed, I was sat idling at trafic lights and engine just cut out and wouldn't start again.

What worried me was no two minutes before I was in the third lane of a very busy "smart" motorway. Had that of cut out on me there, I had visions that by the time I'd noticed what had happened, shat my pants, then realised it wasn't going to start again I wouldn't of been going traffic speed and likely found it impossible to get out of the third lane, let alone somewhere safe, since the smart motorway, as it turns out, isn't all that safe!!

At the time it was just two adults in the car. But had i have been alone with my two kids then I'd of been really in the <beep>!
That's why I decided not to chance it and not drive it again until I'd changed something!

It may not always break down in a convenient safe place like in a car park outside the local Chinese is what I'm probably trying to say.

srichards
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Re: Breakdown

Post by srichards » Thu Oct 17, 2024 12:31 am

Does it chuck a code up while it is cranking and not starting?

steve2003rs6
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Re: Breakdown

Post by steve2003rs6 » Thu Oct 17, 2024 9:18 am

Hi suz. No code.
But if you crank it more than 30 turns it will put an error code. Using VCDS you can read the code.

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