Gearbox Teardown & Refurbish - 6HP28A61

5.0 V10 50v biturbo - 571 bhp
RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Sat Nov 28, 2020 7:54 pm

Intermediate output shaft

RS_BROKE
1st Gear
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Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Sat Nov 28, 2020 7:55 pm

Good condition
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RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Sat Nov 28, 2020 8:01 pm

ATinOf wrote:
Mon Sep 03, 2018 12:24 pm
Now to remove the oil coolers, starting with the transfer diff oil cooler. It seems we have some more screws to order; malgrips put to use again!
These screws are Audi supply; 01V 919 838, although they are the same M6 x 15 Torx fixings as the cooler pipe screw; ZF dont list them for the gear oil coolers.
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After the transfer diff cooler remove the gearbox oil cooler adjacent
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... and I can confirm these are a ball ache to remove stripped every single one on both coolers😂 got most off but two one in each remaining the gearbox coolers are recessed which doesn’t help when using little torx keys yes I know but a wrench was just making it worse ps don’t use little torx keys you will hit your fingers against the coolers and cut your them!
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RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Sat Nov 28, 2020 8:04 pm

Transfer case magnet
The bearing in the transfer case seems to have lot of play when the output shaft is out maybe this is normal 🤔maybe At can comment on this.
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RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Sun Nov 29, 2020 7:55 pm

Finally got the oil coolers off by making a t30 fit in a t25😎
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RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Sun Nov 29, 2020 7:56 pm

Don’t worry your sump bolts won’t be as mix matched as mine
Does anyone know what this bolt is🤔
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welwynnick
4th Gear
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Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by welwynnick » Sun Nov 29, 2020 8:03 pm

That's an E-torx bolt / hexalobular head screw.

Sometimes you can undo them with a wall-drive hex socket or a bi-hex socket, but for modern German cars it's best to have a proper set of E-Torx sockets, and I wouldn't risk it.

Nick

RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 3:09 pm

I’ve got proper torx se but this is external I just put a 9mm socket and it came off thanks anyway 👍

RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 8:37 pm

Does anyone know what these two are for front diff? Next to the oil coolers
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RS_BROKE
1st Gear
Posts: 58
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Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 8:40 pm

Sump looks clean but then again it had oil and filter to see if it would fix it remember to inspect the magnets
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RS_BROKE
1st Gear
Posts: 58
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Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 8:43 pm

Got the sump off everything looks clean At has two blue solenoids and I have two green ?
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RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 8:44 pm

Got the main torx that hold the it to the gearbox but it wouldn’t budge I suspect that this selector is interfering.
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RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 8:50 pm

Be careful when turning the box over there’s “overflow” in the bell housing oil will leak

RS_BROKE
1st Gear
Posts: 58
Joined: Wed Feb 14, 2018 12:10 pm

Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by RS_BROKE » Mon Nov 30, 2020 8:50 pm

Overflow
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Jim Haseltine
4th Gear
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Re: Gearbox Teardown & Refurbish - 6HP28A61

Post by Jim Haseltine » Mon Nov 30, 2020 10:20 pm

RS_BROKE wrote:
Mon Nov 30, 2020 3:09 pm
I’ve got proper torx se but this is external I just put a 9mm socket and it came off thanks anyway 👍
TX-sockets

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