G28 - implausible, manual swap help?!

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
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AshD2S8
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G28 - implausible, manual swap help?!

Post by AshD2S8 » Wed Mar 09, 2022 12:19 pm

Hi all, anyone got a manual flywheel from TTV lying around?

After some info on where the trigger is in comparison to my own flywheel, TTV cocked mine up, trigger was well off, see the previous post 😭

Anyway… they supplied me with where it should be in comparison to the flex plate trigger, so I took the engine out yesterday, ripped the turbo off the drivers bank, box off, clutch off, flywheel out, worked out from what they said where it should be… welded 2 teeth in the slot they made previously, got that square, then milled 2 teeth out from their data.

Now I have gone from a non start g40/g163 implausible signal fault to a g28 implausible signal. Live data on VCDS is reading the crank.

Here comes the fun part… before doing this, I removed the single turbo of bowers manual car, removed the CPS, set both engines to timing TDC, looked through the CPS hole and counted 30 teeth on clockwise rotation, 31/32 should be the trigger.

Did the same to mine, set to tdc, marked the tooth, turned the engine over to the same position , marked the 2 trigger teeth about to hit the CPS.

From what TTV are saying it should be when the flex plate bolt holes align, 4 teeth, from my own data, I’m seeing 5 teeth.

Big question here… will the engine run if it’s a tooth out in the CPS trigger?

And is there anyway to confirm where that trigger should be for a manual swap into an O1E?

Thanks in advance you legends 👌🏻
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Shoppinit
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Re: G28 - implausible, manual swap help?!

Post by Shoppinit » Wed Mar 09, 2022 12:26 pm

Can't you compare to the standard ring on an auto flywheel?

I'd be surprised if it the engine would run well being a few degrees out at the crank. Might fire up, but doesn't sound like it wants to from your description.
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: G28 - implausible, manual swap help?!

Post by Shoppinit » Wed Mar 09, 2022 12:27 pm

What did you weld on? Is it the same material as the rest of the flywheel?
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."

AshD2S8
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Re: G28 - implausible, manual swap help?!

Post by AshD2S8 » Wed Mar 09, 2022 1:00 pm

Correct, same material, same gap sizes to within 0.1mm same height

Muggy
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Re: G28 - implausible, manual swap help?!

Post by Muggy » Tue Mar 15, 2022 12:15 pm

The trigger is not in the same place as the auto...a few teeth off as the sensor mount is further towards the top of the motor compared to the auto. I was worried about the same, but knew that my flywheel came off of a running car, so trusted the installation. Here's a pic of mine where the trigger lines up with the lock pin in.

Image

AshD2S8
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Re: G28 - implausible, manual swap help?!

Post by AshD2S8 » Sat Mar 19, 2022 8:25 pm

Thankyou! Managed to sort the flywheel TTV remade me one free of charge in the end, after I told them where it should be 🙄 Thankyou though

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