3CX black cab: no drive

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essexpete
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Re: 3CX black cab: no drive

Post #11 by essexpete » Sun Jul 10, 2022 7:56 pm

I don't suppose it matters if the engine is just stopped or idling, but checking from cold, as it were, will give a false reading. If it is like our old Powertrain, then there should be a filter. Take that off and have a look at the oil.
I assume the dump valve is returning?


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QAnon
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Re: 3CX black cab: no drive

Post #12 by QAnon » Fri Jul 22, 2022 4:17 pm

The filter is very clean as is the trans sump. A little debris but considering how neglected this machine has been, I'm not surprised. I guess the next step is to extract the dump valve to see if it is possibly blocked. I'm beginning to think the forward clutch is burnt out but it seems logical to check the dump valve first -here's hoping the problem is that simple... ;)
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Re: 3CX black cab: no drive

Post #13 by QAnon » Tue Aug 16, 2022 12:50 pm

Me again. Does anyone know how much tranny oil to expect to drain out? -The book says it takes 11 litres dry and I appreciate some will be left in the torque converter and pump but I only got 5-6 litres out. That seems like an awful lot of mucky oil still inside. Unless my oil level was far too low in the 1st place?


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Re: 3CX black cab: no drive

Post #14 by Jeremy Rowland » Tue Aug 16, 2022 5:33 pm

QAnon wrote:Me again. Does anyone know how much tranny oil to expect to drain out? -The book says it takes 11 litres dry and I appreciate some will be left in the torque converter and pump but I only got 5-6 litres out. That seems like an awful lot of mucky oil still inside. Unless my oil level was far too low in the 1st place?



Daft question but has it leaked any because oil levels can drop quite quickly with leaks if they are not regularly checked?

Jeremy


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Re: 3CX black cab: no drive

Post #15 by QAnon » Tue Aug 16, 2022 6:38 pm

Not daft and it might have. I struggle to read the dipstick, not an eyesight thing but not sure I'm reading it right. It looks a little wet but barely visible compared to when it's cold. Not sure if that is sort of splashback or a genuine reading. Think I'll keep topping it up and see what happens...


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Re: 3CX black cab: no drive

Post #16 by essexpete » Tue Aug 16, 2022 8:38 pm

Be careful not to overfill. Run it without the dipstick, stop it and immediately dip. Worth a try.


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Re: 3CX black cab: no drive

Post #17 by QAnon » Wed Aug 17, 2022 3:14 pm

Thanks essexpete, that was the way. It took 3 litres to fill properly but sadly still no forward drive☹️


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Re: 3CX black cab: no drive

Post #18 by essexpete » Wed Aug 17, 2022 8:28 pm

Realistically it sounds like a forward clutch pack failure.


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