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Author Topic: Clutch slipping... Helix still the one to get?  (Read 19016 times)

Offline MS1

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Re: Clutch slipping... Helix still the one to get?
« Reply #45 on: March 22, 2016, 08:20:10 am »
4 brand new Goodyear Eagle F1's Asy 2's about 1500 miles. About 6.5mm all round hehe
R-Tech Map/ Longlife TBE w/200 cell Sports Cat / ITG Maxogen G60 / Loba HPFP / Forge Twin FMIC / Forge TB Hose / R8 Coilpacks / Neuspeed Power Pulley / EBC D&G Front & Rear Discs / EBC Yellowstuff Pads / BSH PCV Kit / Super-Pro Front & Rear / W.A.L.K / APR Torque Arm / 034Motorsport Density Line Engine Mounts / Vibratechnics Subframe Mount / Vibratechnics Dogbone Bush

284bhp / 307lbft

Offline AJP

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Re: Clutch slipping... Helix still the one to get?
« Reply #46 on: March 22, 2016, 08:41:21 am »
All set then! Best of luck with the mapping today mate. Don't forget to ask Niki for the 5 switchable maps option.

Offline pudding

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Re: Clutch slipping... Helix still the one to get?
« Reply #47 on: March 22, 2016, 11:41:29 am »
How long's the Loba been on there?   You might wanna check the follower more frequently!  Mine's been clobbering it.  Stripped the black coating off in just ~ 20K miles.  Stock pump usually sees at least double that from a new follower.

Tyres - haha, I shredded my F1s to f'ck super quick.  Pilot Sport 4s on now and the TC barely flickers now.  I'm around 334lbft.


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline pudding

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Re: Clutch slipping... Helix still the one to get?
« Reply #48 on: March 22, 2016, 11:48:44 am »
Noticed that my gear shift is progressively getting stiffer and stiffer, especially 1st to 2nd in the mornings.   I hope it's not the clutch binding.   Is there anything else it can be?

If the Helix is defective, what about a diesel clutch?  They're normally stronger, or are they the same as GTI?


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline AJP

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Re: Clutch slipping... Helix still the one to get?
« Reply #49 on: March 22, 2016, 01:30:19 pm »
Noticed that my gear shift is progressively getting stiffer and stiffer, especially 1st to 2nd in the mornings.   I hope it's not the clutch binding.   Is there anything else it can be?

If the Helix is defective, what about a diesel clutch?  They're normally stronger, or are they the same as GTI?
Hope it's not the Helix. Low fluid?

Offline pudding

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Re: Clutch slipping... Helix still the one to get?
« Reply #50 on: March 22, 2016, 02:10:03 pm »
Noticed that my gear shift is progressively getting stiffer and stiffer, especially 1st to 2nd in the mornings.   I hope it's not the clutch binding.   Is there anything else it can be?

If the Helix is defective, what about a diesel clutch?  They're normally stronger, or are they the same as GTI?
Hope it's not the Helix. Low fluid?

So do I as fitting it was a pain in the backside.  Do the brakes and clutch cylinders share the same reservoir?   It had a new slave when the clutch went in, so it could be the master getting weak I suppose.  Wouldn't surprise me after 100K and double the spring pressure in the clutch!


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline AJP

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Re: Clutch slipping... Helix still the one to get?
« Reply #51 on: March 22, 2016, 02:19:04 pm »
Noticed that my gear shift is progressively getting stiffer and stiffer, especially 1st to 2nd in the mornings.   I hope it's not the clutch binding.   Is there anything else it can be?

If the Helix is defective, what about a diesel clutch?  They're normally stronger, or are they the same as GTI?
Hope it's not the Helix. Low fluid?

So do I as fitting it was a pain in the backside.  Do the brakes and clutch cylinders share the same reservoir?   It had a new slave when the clutch went in, so it could be the master getting weak I suppose.  Wouldn't surprise me after 100K and double the spring pressure in the clutch!
They do.

Gearbox oil could also be a culprit. If things are a bit lumpy between changes in the morning it might point to it being degraded, and it'd in theory be worse when it's stone cold.

Re the MC, there were apparently two different sizes fitted to the mk5 GTI; one which is 22 cubic cm and the other 23 cubic cm. A '22' or '23' in the part number denotes which. Pretty sure the 23 was also used in the R32. Not sure if the 22 was actually superceded, but obviously get the 23 if you do end up changing it.

Offline pudding

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Re: Clutch slipping... Helix still the one to get?
« Reply #52 on: March 22, 2016, 03:10:11 pm »
Good info, cheers for that!

I put new gear oil in when I got the car a couple of years ago, so I guess it wouldn't hurt to refresh it again.

It feels stiff like the gearbox shafts are still under load, which is classic clutch drag.   I suppose I could disconnect the cable ends from the gearbox and just double check the cables themselves aren't seizing up.  Had that problem in my old Corrado now I think back on it.....

Where is the clutch MC, so I can check it for leaks?  Haven't seen one on the bulkhead in the engine bay after a quick poke around.  Still learning about these cars.


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline AJP

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Re: Clutch slipping... Helix still the one to get?
« Reply #53 on: March 22, 2016, 03:17:50 pm »
Under the resevoir. Pic courtesy of Google..


Offline pudding

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Re: Clutch slipping... Helix still the one to get?
« Reply #54 on: March 22, 2016, 04:03:39 pm »
Cheers for the pic, but is that not the brake master cylinder?   It's the clutch master cylinder I need to find  :smiley:   Or does the MK5 have some kind of weirdo shared affair?!


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline pudding

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Re: Clutch slipping... Helix still the one to get?
« Reply #55 on: March 22, 2016, 04:05:34 pm »
Just googled it, it's part of the bloody pedal!!! Typical!



2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline AJP

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Re: Clutch slipping... Helix still the one to get?
« Reply #56 on: March 22, 2016, 04:18:39 pm »
Ah jesus yeah, sorry! Pays to read things properly doesn't it! The info above regarding sizes relates to the brake cylinder by the way..

That looks like a lovely job!!!