Hi,
Looking for creative suggestions. Some background:
During 2006 I fitted a Supra W58 gearbox into my Triumph Vitesse. Some details on that process here
www.triumphowners.com/registry.cgi?section=triumph&vehicleID=574&i=0
At the time I chose to keep the original Triumph clutch cover and found a similar sized friction plate (212mm vs 216mm) with the correct spline. Clutch actuating mechanism (hydraulic) is all Supra including the release bearing. My two concerns at the time were that the centre construction of the friction plate (QH p/no C993AF) looked a bit "light" compared to the Triumph one, with only 4 springs compared to the original 6 and the shape of the release bearing at the contact point with the cover diaphragm was different with the Toyota one quite pointy compared to a smooth curve on the Triumph one.
This combo has now done just under 30k miles, some of them quite hard including several visits to the big hills (Alps). Problems have been slowly emerging.
Firstly, the feel of the clutch pedal has changed. It did originally have a definite biting point about half way through the pedal travel. This gradually changed until I had to have the pedal squashing the carpet to get it to clear, but to be almost right off the pedal for it to fully bite although it would begin taking up very near the floor. Hydraulics are working fine.
Secondly there has been increasing judder on take-up and some odd noises including rattling, shunting and clanking when trickling along in traffic and some mild squealing when hill starting hot.
Last night I pulled it all to bits
The plate on the right is the Toyota one. Friction surfaces are fine as are the pressure plate and flywheel. However, the centre is falling to bits with the springs compressed and deformed. I think this is the cause of the judder, noise and shunt.
The "long" biting point is more of a puzzle.
Release bearing and fingers look a bit distressed. The release bearing contact profile looks flatter than I remember but is similar to another I have kicking around. Definitely less rounded than a Triumph one but it did work ok.....
So, I could just stick another set of parts in it as before and drive on. However, the friction plate centre is clearly on the edge grunt wise and a new, gruntier engine is planned. Could do with something a bit beefier as all the applications info I have for the C993AF plate suggest it's intended for 1.6 petrol or 2.0 NA diesel/ 60 - 70 HP and the Vitesse is 2.0L /120 bhp now. There is a slightly larger (225mm) plate listed, but that will be too large for the cover I have been using. It may be that the full kit would have the same bolt holes, but that's an expensive gamble! Might be possible to get one made I suppose, but I'd hate to do that and discover there is a perfectly good OEM one!
Plate details 212 - 218 OD for 29mm shaft with 21 splines (Typically Toyota and Daihatsu that I know of - maybe others??) Or a full kit with slightly larger plate that will bolt up to the Triumph flywheel with the same spline.
Any ideas?
Thanks
Nick
have a pic of the beast in working order for your trouble.....
Looking for creative suggestions. Some background:
During 2006 I fitted a Supra W58 gearbox into my Triumph Vitesse. Some details on that process here
www.triumphowners.com/registry.cgi?section=triumph&vehicleID=574&i=0
At the time I chose to keep the original Triumph clutch cover and found a similar sized friction plate (212mm vs 216mm) with the correct spline. Clutch actuating mechanism (hydraulic) is all Supra including the release bearing. My two concerns at the time were that the centre construction of the friction plate (QH p/no C993AF) looked a bit "light" compared to the Triumph one, with only 4 springs compared to the original 6 and the shape of the release bearing at the contact point with the cover diaphragm was different with the Toyota one quite pointy compared to a smooth curve on the Triumph one.
This combo has now done just under 30k miles, some of them quite hard including several visits to the big hills (Alps). Problems have been slowly emerging.
Firstly, the feel of the clutch pedal has changed. It did originally have a definite biting point about half way through the pedal travel. This gradually changed until I had to have the pedal squashing the carpet to get it to clear, but to be almost right off the pedal for it to fully bite although it would begin taking up very near the floor. Hydraulics are working fine.
Secondly there has been increasing judder on take-up and some odd noises including rattling, shunting and clanking when trickling along in traffic and some mild squealing when hill starting hot.
Last night I pulled it all to bits
The plate on the right is the Toyota one. Friction surfaces are fine as are the pressure plate and flywheel. However, the centre is falling to bits with the springs compressed and deformed. I think this is the cause of the judder, noise and shunt.
The "long" biting point is more of a puzzle.
Release bearing and fingers look a bit distressed. The release bearing contact profile looks flatter than I remember but is similar to another I have kicking around. Definitely less rounded than a Triumph one but it did work ok.....
So, I could just stick another set of parts in it as before and drive on. However, the friction plate centre is clearly on the edge grunt wise and a new, gruntier engine is planned. Could do with something a bit beefier as all the applications info I have for the C993AF plate suggest it's intended for 1.6 petrol or 2.0 NA diesel/ 60 - 70 HP and the Vitesse is 2.0L /120 bhp now. There is a slightly larger (225mm) plate listed, but that will be too large for the cover I have been using. It may be that the full kit would have the same bolt holes, but that's an expensive gamble! Might be possible to get one made I suppose, but I'd hate to do that and discover there is a perfectly good OEM one!
Plate details 212 - 218 OD for 29mm shaft with 21 splines (Typically Toyota and Daihatsu that I know of - maybe others??) Or a full kit with slightly larger plate that will bolt up to the Triumph flywheel with the same spline.
Any ideas?
Thanks
Nick
have a pic of the beast in working order for your trouble.....
