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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old January 4th, 2012, 13:45   #1
cb1
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Default sachs clutch kit

i need to replace my clutch,planning to replace it with a sachs/vr6 kit from idparts....i have been told they are noisy at idle...does anybody knows if this true and how bad is it..??im planning to upgrade injectors and maybe turbo at a later date....but right now i need a clutch...
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Old January 4th, 2012, 13:54   #2
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Most of the solid flywheel/dampened clutch kits besides the Valeo kit make noticeable noise, but nothing terrible if you stick with a heavier 21 pound flywheel.

The Sachs G60/VR6 clutches are very hit and miss on how much torque they can hold. Mine slipped on my PD after a camshaft and a tune. I would spend the money up front, and get an SBC Stage II clutch if you are going to do upgrades in the future.
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Old January 15th, 2012, 19:21   #3
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Quote:
Originally Posted by Jnitrofish View Post
Most of the solid flywheel/dampened clutch kits besides the Valeo kit make noticeable noise, but nothing terrible if you stick with a heavier 21 pound flywheel.

The Sachs G60/VR6 clutches are very hit and miss on how much torque they can hold. Mine slipped on my PD after a camshaft and a tune. I would spend the money up front, and get an SBC Stage II clutch if you are going to do upgrades in the future.
ok..thanks for the info..will check into the valeo and sbc
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Old January 16th, 2012, 04:20   #4
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I have had great luck with my sachs VR clutch. I didn't notice the noise at all. It only started to slip right before tdifest with RC5.
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Old January 16th, 2012, 04:30   #5
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It maybe depends on how the torque is delivered with the tune, here's ryanp's caddy and he's not had any bother yet with sachs VR6 setup.

http://forums.tdiclub.com/showthread...yanp%27s+caddy
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Old January 16th, 2012, 04:59   #6
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no valeo crap for tunend tdi's.
the vr6/combo are good for 450-480nm. /2400 rpm
also keep the torq a bit higher in the rpmband good for clutch and drivetrain/box.
and don't forget to have the flywheel cleand and maybe resurface before install.
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Old January 16th, 2012, 05:13   #7
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and don't forget to have the flywheel cleand and maybe resurface before install.
That's true, my mates one was like a worn out brake disc so he's knicked my spare for now.
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Old January 17th, 2012, 21:55   #8
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If you use the stock Mk3/B4 TDI clutch disk with the VR6 pressure plate, you will have next to no rattle, a failure-free single mass flywheel and the clamping force of the VR6 pressure plate.

I'm not sure if any of the vendors currently have such a kit, though I have been in contact with one recently. This may be in the works as a regular kit in the near future.

This is the part number for the TDI-specific SMF clutch disk: 028 141 035 C.

I've had a VR6 clutch kit in my Mk3 since 2006. It was abysmally loud and rattly (the Mk4s aren't as rattly with this kit, especially if you get the heavier flywheel option--21 lb). The Mk3 came with a 21 lb SMF from the factory. All I did was machine the original one and install the VR6 clutch kit.

A couple weeks ago, I took the trans back out to address a leaking rear main seal and got the above clutch disk. I scuffed up and cleaned the flywheel and pressure plate and reinstalled the same flywheel, pressure plate and throwout bearing that's been there since 2006, just with the different clutch disk. The rattle is all but gone! From very noisy to nearly silent.

The holding power shouldn't be any different with the disk. The friction material is the same, just the hub and springs in the center of the disk are changed.
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Old January 17th, 2012, 22:46   #9
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Matt-

I am in the middle of this too at the moment. I am planning to use the Sachs 037141033B disc which (I thought) was also a TDI specific disc that uses two different wire diameter springs in the hub. The worn out Luk SMF disc that I removed has two different springs in it too.

These are the sites that have photos of the disc:

http://www.mjmautohaus.com/catalog/p...oducts_id=1339

and

http://www.autohausaz.com/search/pro...@Clutch%20Disc

What about the 028141035C ? I do see that these guys sell it:
http://www.hansautoparts-charlotte.c...035CClutch.htm

How did you arrive at your part number?
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Old January 18th, 2012, 07:30   #10
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I also use the MKIII TDI kit on the G60 FW like Matt mentioned. Zero noise and holds just as well as far as I can tell.

The Sachs number is K7003801. That is for PP, disc and release bearing.

I have no idea why the VR6 kit is so popular

Last edited by runonbeer; January 18th, 2012 at 07:33.
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Old January 18th, 2012, 07:49   #11
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Quote:
Originally Posted by Yblocker View Post
Matt-
I am in the middle of this too at the moment. I am planning to use the Sachs 037141033B disc which (I thought) was also a TDI specific disc that uses two different wire diameter springs in the hub. The worn out Luk SMF disc that I removed has two different springs in it too.
These are the sites that have photos of the disc:
http://www.mjmautohaus.com/catalog/p...oducts_id=1339
and
http://www.autohausaz.com/search/pro...@Clutch%20Disc
What about the 028141035C ? I do see that these guys sell it:
http://www.hansautoparts-charlotte.c...035CClutch.htm
How did you arrive at your part number?
The part number I quoted is the VW part number.

There is a different part number between VR6 pressure plate and TDI pressure plates as well. I would think the VR6 pressure plate has more clamping force? I kind of wish we could get some tangible numbers on the stock Mk3 pressure plate vs. VR6 pressure plate as far as clamping force.

For the record, the "G60" flywheel is the same for all 4 cylinders that came coupled to an 02A transmission. The G60 was merely the first to use it. 2.0L 16V in the B3 Passat, 2.0L 8V in the B3/B4 Passat and the B4/Mk3 TDI (1Z/AHU) all used the same 21 lb SMF flywheel from the factory. I figured for this crowd it would be easier to refer to it as the "stock B4/Mk3 TDI flywheel." But maybe that's just me...

BTW, Hansautoparts = Rothenbacher = Prothe. STAY AWAY. Chinese rip-off garbage.

The part number I used comes up on Worldimpex: http://www.worldimpex.com/parts/sach...c_2739698.html

They also list the OEM part for a fair bit more money (which is typically the same exact Sach's disk with a VW/Audi emblem embossed on it. Or like mine, it's actually an LuK remanufactured unit... with Sach's friction material. LOL).
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Last edited by Matt-98AHU; January 18th, 2012 at 07:54.
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Old January 18th, 2012, 09:46   #12
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so I am confused. I only plan on doing nozzles, intercooler and those are my main big mods. Does the VR6 clutch kit for the 98 jetta tdi not hold up to those power mods?
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Old January 18th, 2012, 11:42   #13
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Quote:
Originally Posted by Matt-98AHU View Post
2.0L 16V in the B3 Passat, 2.0L 8V in the B3/B4 Passat and the B4/Mk3 TDI (1Z/AHU) all used the same 21 lb SMF flywheel from the factory. .
I've yet to see an OEM factory 21lb flywheel, of the dozen I've pulled of vehicles all were 18-19lbs. However many of the new flywheels made today are 21-22 lbs.
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Old January 18th, 2012, 15:10   #14
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I weighed one recently that I took off a Mk3, 21 lbs exactly. WITH the ring gear.
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Old January 18th, 2012, 16:18   #15
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I did a little more homework on the disc part numbers.

Volkswagen part number 028-141-035-C cross references to Sachs 1878-043-141. The Sachs number is printed on the hub on the disc that came in just today. This disc can be purchased from AZ Autohaus or MJM Autohaus under part number 037141033B This is the specific TDI disc and Sachs uses a dual (spring-within-a-spring) set up, and is designed for the diesel application. As I said above, the stock LuK disc I took out of my TDI has two different spring wire diameters, but are single springs. It was quiet at idle.

The Impex part number that Matt references is the Volkswagen part number, and as Runonbeer says the whole TDI clutch kit (that includes the correct disc) is available. I am going with a stronger cover that Bora Parts is supplying.

My G60 flywheel is factory and weighs 21 pounds for what it's worth.

Cb-1: I think the VR-6 clutch will be strong enough for your plans. It may be a bit noisy though. By the way the South Bend clutch kits all use the VR-6 disc too, so that's why they tend to clatter.
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Last edited by Yblocker; January 18th, 2012 at 16:38.
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