The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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 Post subject: Clutch
PostPosted: Tue Oct 30, 2018 8:43 pm 
Could anyone on here tell me where i can get an uprated clutch for my Sprint or is a standard clutch ok for fast road use with power approx 140.


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 Post subject: Re: Clutch
PostPosted: Tue Oct 30, 2018 10:23 pm 
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TDC Shropshire Area Organiser

Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7014
Location: Highley, Shropshire
Try Larkspeed, they do 3 stages of uprated clutches for Sprints. 140 brake shouldn't need more than a stage 1.

I've only used their stage 1 clutch so far, but it stood up fine to the RBRR, is smooth in operation and not too heavy in service. Can't say on service life as it's only done about 3.5k miles so far, but is seems to do what it says on the tin!

Steve

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'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


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 Post subject: Re: Clutch
PostPosted: Wed Oct 31, 2018 9:54 am 
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Location: Over here...can't you see me?
The Quicksprint (209 bhp) copes just fine with a standard TR7 clutch; the only reason it is a TR7 clutch is it has the 20 spline LT77 gearbox fitted


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 Post subject: Re: Clutch
PostPosted: Wed Oct 31, 2018 8:36 pm 
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I can't see the std clutch having issues with 140ish bhp. It is the same as the clutch fitted to teh 2.5PI saloons (OK, 132bhp but a shedlod of torque) and the TR6 etc is the same overall diameter. May even be same cover, but the plate has a slightly larger bore to allow for the slightly larger diameter input shaft used on the TR6 gearbox.

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Clive Senior
Brighton


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 Post subject: Hmm......
PostPosted: Thu Nov 01, 2018 10:06 am 
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Joined: Thu Aug 09, 2007 1:22 pm
Posts: 6475
Location: Caithness, Scotland
We need to be wary of standard clutches because there are some poor replicas for sale,
(the lack of rivets is a clue....).

Volvo have in the past used the same clutches as Triumph 2000s and Dolomite Sprints,
Jeroen Rothman uses LuK clutches, which is all the recommendation I need.


Here in the UK it seems LuK only sell kits but on the continent they sell components individually,
therefore you can use a Volvo plate under a Saab cover (worthwhile).
https://www.onlinecarparts.co.uk/luk-968391.html
I am thinking that this is the one that Jeroen uses?
(The Saab cover is 122 0035 10, which is about 3kg lighter than standard Triumph versions
https://www.onlinecarparts.co.uk/luk-966071.html#).



I will hopefully be able to get a LuK 23 spline TR7 plate for my Sprint with a T9 'box,
they are out of stock presently.



Ian.

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