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Poor returning clutch pedal
Dusty - 6/4/14 at 04:36 PM

I have a polo saloon 1.9 TDI with hydraulic clutch. As a drive progresses the clutch pedal returns slightly les each press until it's quite low and a press doesn't quite release the clutch so I grind the gears. I hook my foot behind the pedal, lift it and all is normal for another 10-20 gear changes.
I thought it might be a sticky master cylinder but that would return to the same albeit low position each stroke. Almost as if it looses a little fluid each time but I can't find a leak and the reservoir level doesn't seem to drop.
Anyone any ideas. I suspect I need a new master cylinder but I would like to avoid that cost as it's only a guess.

Nigel

jacko - 6/4/14 at 05:15 PM

Pedal bearing seizing ?

pmc_3 - 6/4/14 at 05:26 PM

I had a similar problem on an mgf recently, new slave cylinder solved it

britishtrident - 6/4/14 at 06:36 PM

quote:
Originally posted by Dusty
I have a polo saloon 1.9 TDI with hydraulic clutch. As a drive progresses the clutch pedal returns slightly les each press until it's quite low and a press doesn't quite release the clutch so I grind the gears. I hook my foot behind the pedal, lift it and all is normal for another 10-20 gear changes.
I thought it might be a sticky master cylinder but that would return to the same albeit low position each stroke. Almost as if it looses a little fluid each time but I can't find a leak and the reservoir level doesn't seem to drop.
Anyone any ideas. I suspect I need a new master cylinder but I would like to avoid that cost as it's only a guess.

Nigel


All the symptoms of a failing recuperating seal in the master cylinder.

britishtrident - 6/4/14 at 06:44 PM

quote:
Originally posted by pmc_3
I had a similar problem on an mgf recently, new slave cylinder solved it


It was probably just stripping down to fit the new slave that cure it.
Probnlems with the clutchn release on the Rover Pg1 gearbox in the MGF it is usually caused by the shaft the clutch release fork pivots on in the bellhousing partly seizing in its bearings.
The shaft runs directly in the aluminium alloy of the bell housing and suffers from corrosion.

Dingz - 6/4/14 at 07:11 PM

Can you get a seal kit for it Nigel or is it a new cylinder only?

Dusty - 6/4/14 at 11:08 PM

Master cylinder recuperating seal needs a bit of recuperation. Thanks for the help.
I will search for seal kits online. Problem is polo saloon is a bit of an oddity. Half polo and half cordoba and not a huge number on the roads.

[Edited on 6/4/14 by Dusty]