Alfa Pages Forum Index Alfa Pages
A forum for help with the Alfasud And Alfa 33
 

8v clutch change tips

 
Post new topic   Reply to topic    Alfa Pages Forum Index -> General
View previous topic :: View next topic  
Author Message
knighty
Alfasud


Joined: 12 Oct 2004
Posts: 33
Location: Essex, UK

PostPosted: Wed May 14, 2008 8:46 am    Post subject: 8v clutch change tips Reply with quote

just took my beach buggy out for a ride after an engine swap from a 1.5 to a 1.7 8v, and the clutch is slipping under mild/heavy acceleration, had a fiddle with the clutch release mechanism to ensure its not pre-loading the clutch, and all was fine, so after slaving my balls off swapping engines, looks like I need to slide it off again to change the clutch, and I'd appreciate some tips

1) do I need any special alfa tools for locking the flywheel, or will a general clutch locking widget do the job?

2) what size clutch do I need 180mm or 200mm?

3) what make should I go for - I read Valeo on another thread

all help much appreciated Wink
Back to top
View user's profile Send private message Send e-mail
john 33_16v
16 Valve


Joined: 27 May 2005
Posts: 1406
Location: herts, uk

PostPosted: Wed May 14, 2008 9:10 am    Post subject: Reply with quote

Hi,

You don't need to lock the flywheel as such, but may need to hold it with a screwdriver or big box spanner on cranknut to torque up clutch bolts.

You just need an alignment tool for the disc, which you can either get from too /parts shop e,g draper or sykes pickavant, or make one to replicate input shaft with rod and tape.

Think 200mm? Certainly for 16v, prob for 1.7 8v.

Valeo is OEM.

If the slave looks at all iffy change it whilst box off.

John
_________________
If it aint broke, fiddle with it until it is!
- - - - - - - - - - - - - -
93 33 16v Mirtle Met
08 Fiat Grande Punto Exotica Red
90 Yamaha FZR600 Genesis- Silky white/red/blue
Back to top
View user's profile Send private message
RBL
Alfa Sprint


Joined: 30 Mar 2003
Posts: 162
Location: Leicestershire

PostPosted: Wed May 14, 2008 10:03 am    Post subject: Reply with quote

Before you start stripping it down again, are you sure there is full travel on the clutch release lever and clutch pedal; and is the system properly bled? I'm sure it's all sorted but just a thought before you steam ahead (esp because of the mix of VW and Alfa parts)

(PS, there a PM to you still sitting in my outbox from last year)
_________________
Porsche 550 spyder replica with Alfa Sprint 1.7 engine
Back to top
View user's profile Send private message
knighty
Alfasud


Joined: 12 Oct 2004
Posts: 33
Location: Essex, UK

PostPosted: Wed May 14, 2008 10:33 am    Post subject: Reply with quote

thanks for the quick replies guys........yeah, I bled the hydraulic clutch system well, I'm sure theres no air in it as the pedal is nice and solid.....dont forget I'm using a VW beetle box with a hydraulic clutch kit - is this what you use on your spyder?..........

I will have an other fiddle tonight to be absolutley sure its fully retracting and not pre-loading the clutch........the donor engine had done 90,000 miles when I bought it from an MOT failed G-plate sud - due to body rot, which I find a believable story........I took a flier on the clutch thinking it would be ok, and it didnt work out, theres a lesson for me Mad

Thanks for your message on the wiring, I since found out green/black is +ve, white is coil -ve, black is body ground (-ve)
Back to top
View user's profile Send private message Send e-mail
RBL
Alfa Sprint


Joined: 30 Mar 2003
Posts: 162
Location: Leicestershire

PostPosted: Wed May 14, 2008 11:33 am    Post subject: Reply with quote

Quote:
dont forget I'm using a VW beetle box with a hydraulic clutch kit - is this what you use on your spyder?..........


I use a 5 speed alfa 'box, VW clutch pedal and AP Racing 1" master cylinder. (I also use oversize hydraulic clutch pipe as I found the standard diameter didn't allow the fluid to travel quick enough with my set up - works great now)

I should think your problem does lie in the clutch plate though - would have been an easy swop at the time - but you know that now. [/u]
_________________
Porsche 550 spyder replica with Alfa Sprint 1.7 engine
Back to top
View user's profile Send private message
Admin
Site Admin


Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK

PostPosted: Wed May 14, 2008 7:40 pm    Post subject: Reply with quote

Hi

My general assumption with a 33 clutch is that they last about 80k of general use. However it is normally the thrust bearing that goes first.

For clutch alignment on the P4 I used a 1/2" extension bar with the diameter increased slightly with insulation tape.

All the best

Keith
_________________
I owe, I owe, its off to work we go.
Bimota Forum
Stafford Christmas Lights
Back to top
View user's profile Send private message Send e-mail
knighty
Alfasud


Joined: 12 Oct 2004
Posts: 33
Location: Essex, UK

PostPosted: Wed May 14, 2008 8:16 pm    Post subject: Reply with quote

excellent replies guys, 80,000 miles sounds about right, sounds like mine did well to get to 90,000, I will check the spigot bearing condition toojust ordered a clutch today, hopefully a new one will be included in the kit......

yeah, I had also looked at the clutch line ID and thought it was way too thin for clutch use whereby much more fluid flow is needed than compared to brakes, I will probably upgrade it based on what you say, as the clutch pedal travel feels way too stiff and too long in travel, I have a feeling my master cyl size is smaller than 1" too........

going to attack it this weekend, just passed its MOT so better get my skates on and make the most of the good weather, thanks again guys.
Back to top
View user's profile Send private message Send e-mail
RBL
Alfa Sprint


Joined: 30 Mar 2003
Posts: 162
Location: Leicestershire

PostPosted: Wed May 14, 2008 9:00 pm    Post subject: Reply with quote

I'm not sure what size your slave cylinder is, but I think the standard Alfa one I use is 1". Going up a size in your master cyliner will reduce your travel (The AP Racing MC I used is actually 0.9375"). I used 1/4" plastic coated braided hose from from to back. About £60 but worth it for ease of installation.

Good luck

Rich
_________________
Porsche 550 spyder replica with Alfa Sprint 1.7 engine
Back to top
View user's profile Send private message
knighty
Alfasud


Joined: 12 Oct 2004
Posts: 33
Location: Essex, UK

PostPosted: Thu May 15, 2008 1:36 pm    Post subject: Reply with quote

just asked my local motor factors for a spiogot bearing and was informed main dealer only, so just spoke to a main dealer and he was describing it over the phone to me, a bush like thing with 3 pins, surrounded by a gear?.......sounds like he is on drugs to me, I'm thinking it should be a simple plain or needle-roller bush.......or am I missing something?.......said I would take a look at the type and condition before buying new as it sounded like grief.........does anyone know what type I need - what the hell does it look like?

also just collected £120 worth of Quinton Hazell clutch, opened the box and its a genuine Valeo unit.....my motorfactor tells me QH have done some sort of deal with Borg & Beck, Valeo and LUK, and therefore now QH are all genuine OE quality.........bonus!
Back to top
View user's profile Send private message Send e-mail
Admin
Site Admin


Joined: 19 Feb 2003
Posts: 1223
Location: Stafford, UK

PostPosted: Thu May 15, 2008 5:41 pm    Post subject: Reply with quote

Hi

Doesn't the kit contain a new thrust bearing.

I have an old (but new) Sud one in the garage I can dig out and show you if it would help.

All the best

Keith
_________________
I owe, I owe, its off to work we go.
Bimota Forum
Stafford Christmas Lights
Back to top
View user's profile Send private message Send e-mail
paulhide
P4


Joined: 20 Dec 2003
Posts: 1607
Location: Oh Beautiful Billingham

PostPosted: Fri May 16, 2008 8:39 am    Post subject: Reply with quote

MOT failed G-plate sud - don't think that is possible?
MOT failed G-plate 33 perhaps.
I have come across just two types of thrust bearing for a 33 clutch kit - yet to come across one that has failed. Clutch slip most likely with worn plate (or plate contamination). Often have come across another problem where the thrust bearing has broken off the tips of the splines and pushed right through, but this just means that you can't change gear.
_________________
Owner's Club 33 Registrar. Now from P4 & S2 1.7 QV
http://www.alfa-pages.co.uk/viewtopic.php?t=5188
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    Alfa Pages Forum Index -> General All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum