gear changing problems

Post by **HarryMann** » 02 Jun 2006, 22:37

Slave VW Part No. 251 721 263

GSF will find their equivalent

Post by **MikeB** » 03 Jun 2006, 03:12

HarryMann wrote:3) with a bleeding tube (any motofax) having a one-way valve at the end

Emma;

Motorworld, Strood. I got myself a new one in there the other day as it happens.

Pretty cheap if you want your own one, or I've got an unopened one here you can borrow.

Mike.

Post by **ermie571** » 03 Jun 2006, 07:38

Thanks for the offer Mike (how's the engine?),
but if it is pretty cheap, and with the number of vans we have, perhaps we better go out and purchase one!

Harryman - thanks for the VW number.

Nice day, so after a few jobs we gotta do this morning, Scoobs is up for this afternoon!

Let you all know how it goes.

Emma

Edited to add - thanks for the 5a Harry!
Bowton-lad - that explains why everyone else could find the Aircooled gsf parts and I couldn't. Thought I was being thick!!!! Fancy, watercooled. Oh well. At least I will be prepared!

Thanks again to all
Emma

Post by **HarryMann** » 03 Jun 2006, 10:52

Yes, much easier with a proper bleeding tube, just stick it in an empty bottle, open the bleed valve, and go push the pedal smoothly up and down a few times...

Nice if someone can be monitoring at the back (with gogs on

) to see if spurts of air do or do not come out, that bleed nipple is open enough to get a good flow (can be sensed by pedal pressure too, if alone, lack thereof) and when clean fluid starts to come out is usually the point one would stop, then nip bleed screw back up and go top-up the reservoir.

Then check the action... don't forget I said that Mocki had once suggested a blockage can occur so if fluid doesn't come out when bleed open, or just oozes out, then tbe pipe or nipple might have to be taken off the slave to clear or a new slave cylinder fitted. If flow won't start with bleed screw open a half or more turns, take it right out to start with, see if that gets it going.

Hope its the slave and not the clutch internals - I'm reserving judgement.

Post by **ermie571** » 03 Jun 2006, 18:29

Harryman,

I am a happy, tail waggy puppy!

Well, not literally, and I'm not sure for how long.

Followed your advice...went down to halfrauds and purchased a clutch and brake bleeding kit for the princely sum of £4.49, and a small container of Dot4 fluid. Didn't break the bank, for once!

This kit did not need to be submersed in liquid according to the instrcutions, just a receptacle for the fluid was required....in the shape of an empty pop bottle.

Well, cracked the bleed nipple, bit of fluid came out. Tightened, and put rubber hose on. Cracked nipple open. So far, so good.

Pumped clutch....suddenly got very hard.....then nothing. Nothing at all. From your posting, means possibly a blockage followed by a good flow? Anyway, hubby couldn't see any air bubbles.....but the fluid! It was dark green almost brown in colour.

Then I topped up the reservoir which had dropped considerably (by the way, the fluid in there looked alot cleaner than the fluid coming out the other end!)

Having topped up, re-opened bleed screw and continued with the pumping, expecting clutch to get some pressure back. Seems this was wrong as nothing. BUT clean fluid was coming out, with no air bubbles showing in the pipe,

so we called it a day, did the screw up nice and tight, lowered van from axle stand....and tried the clutch

Nowt.

No pressure at all.
Truly despondent, but ever hopefull, turned engine on, and found that the only place the gear stcick would go was neutral!!!!

Got fed up, and went to Mum's for tea.

Came home, about 1.5 hours later, and there was some pressure on the clutch....oooer. Pumped it a few times....little more pressure!!! Woohooo!!!!

Called hubby to make sure not delusional, and he checked the pedal then the operating arm while I depressed clutch. He confirmed that the arm was moving more than previously, but not sure if more than before we started. So, fired her up....and found all gears, including reverse! Do you think she is ok to drive now?

So...why did we need to wait for the clutch to get pressure back?

And having clean fluid at the clutch, have we "changed the fluid", or does that involve bleeding the brakes, too?

Was the failure down simply to fluid in "pooh" condition??

I would just like to THANK everyone who has contributed to this thread. Without this club, she would probaly have been to the garage having god knows what changed!

Just hope it lasts...

Emma

Post by **HarryMann** » 03 Jun 2006, 22:20

Just as confused as you... I am not sure to be honest... its possible that the master cylinder is giving trouble...

I would first bleed the clutch system again now (look towards bleeding the brakes out sometime this year, these fluids are hygroscopic and can absorb water over time, which is not good )

I'll ask Mocki to take a peep at this thread as I know he's experienced something like this before...

Don't trust it yet on a long journey away from home...

Post by **ermie571** » 04 Jun 2006, 10:36

Hi again,

followed harryman's recommendation and bled it again this morning.

Clutch had no pressure during bleeding (now I know this is ok, I didn't panic!)

let a little out, then tightened it.

Couple of depressions of the clutch, and all back to normal.

fired it up, and all four gears plus reverse. Moved it up and down by side of the road.

Jolly pleased! Will wait and see if "cured". Have deffo got a a complete drain and refil of the hydraulic system on the books for all of them.

Thanks again.

Emma

Post by **HarryMann** » 04 Jun 2006, 11:27

Well done,

the problem to be aware of when bleeding the whole brake system, is firstly cracking all the bleed screws open without shearing them off, which tends to stop you in your tracks.

The trick when bleeding without the auto-bleed tube is doing the last'nipping up' as the pedal is still going down. But if you've got the bleed tube now with a valve in the end, that makes it much easier all round.

Post by **HarryMann** » 07 Jun 2006, 01:02

Emma.

Is this clutch still working fine without pumping the pedal, and after a long drive.

Post by **ermie571** » 07 Jun 2006, 07:36

Hi Harryman,

to be honest, I can't tell you that as she is round the corner with the mechanic having all the heater pipes and timware made good!

She drove "round the block" - several pulls from first for roundabouts/lights etc, used all gears except 4th. Absolutely no problems, no pumping the clutch, nice firm, deliberate gear change (think I may be imagining it, but feels better than b4 probs started, but that could be the rose tinted spectacles talking!)- not woolly, but straight through the gate.

The clutch pedal is firm, and I am driving her normally.

Due to remove her from garage tonight. Will have to drive 8 miles to get gas....that's the next test. If she passes that she will come to work tomorrow, which is 10 miles each way, with a motorway stretch. If that is OK she will be going to Foxing and goosing on Friday....about 80 miles.

So....fingers crossed.....will let you know. Have watched fluid level in reservoir, and for drips under the van, around slave etc. Nothing as yet.

Thanks for your continued concern

Emma

Post by **ermie571** » 07 Jun 2006, 18:53

Well,
she has passed the first test - strood and back fine....now work tomorrow

Emma

Post by **ROBS T25** » 08 Jun 2006, 06:07

what a fantastic thread just sums up the club 80-90 attitude towards fellow members always happy to help well done HARRYMANN