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: Sprint carbs
PostPosted: Sun Jan 10, 2021 10:40 am 
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Hi all,

I’ve had my dolomite Sprint for 6 years. This is the second sprint I’ve owned. In the sevenths I had a magenta coloured one. The reg is WDN186R. I believe it was first registered in York. I would very much like to find out more about it.
I have also found these su carborettas. The metal tag in the side has the letters AUD663R are these SU 6.

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Hope you can be of some help, happy new year to you all

Roy


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 Post subject: Re: Sprint carbs
PostPosted: Sun Jan 10, 2021 11:57 am 
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I was also first registered in York, but that's as near as I come to your Sprint.
The carbs are SU HS6s from a Sprint from after 1976. The tag on the left carb float chamber top, which seems to be in the right place, should say AUD663L. The set looks to be just missing the throttle linkage and rubber tubes.

Graham

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The 16v Slant 4 engine is more fun than the 3.5 V8, because you mostly drive it on the upslope of the torque curve.

Factory 1977 TR7 Sprint FHC VVC 697S (Now all of, but still needs putting together)
B&Y 73 Dolomite Sprint UVB 274M (kids!)
1970 Maroon 13/60 Herald Convertable (wife's fun car).


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 Post subject: Re: Sprint carbs
PostPosted: Mon Jan 11, 2021 5:44 pm 
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Quote:
I was also first registered in York, but that's as near as I come to your Sprint.
The carbs are SU HS6s from a Sprint from after 1976. The tag on the left carb float chamber top, which seems to be in the right place, should say AUD663L. The set looks to be just missing the throttle linkage and rubber tubes.

Graham
These are the pre 1976 type carb bodies.....

Jeroen

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 Post subject: Re: Sprint carbs
PostPosted: Wed Jan 13, 2021 8:37 am 
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Burlen Fuels have AUD 633 L&R as 1976 onwards.

http://sucarb.co.uk/carbspec/carburetto ... s/id/2469/

Maybe the tags are wrong if the bodies are earlier, though I'm not clear on what the visible differences are.

Graham

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The 16v Slant 4 engine is more fun than the 3.5 V8, because you mostly drive it on the upslope of the torque curve.

Factory 1977 TR7 Sprint FHC VVC 697S (Now all of, but still needs putting together)
B&Y 73 Dolomite Sprint UVB 274M (kids!)
1970 Maroon 13/60 Herald Convertable (wife's fun car).


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 Post subject: Re: Sprint carbs
PostPosted: Wed Jan 13, 2021 9:46 pm 
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It's easy to see. Early cars have the idle screw through the carb and the later type in the carb. The casting is different. The HS4 of the 1850 had the same modification.

Not sure of these are all Triumph carbs but on the pics you can see.

Jeroen


Image


Image

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Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com


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 Post subject: Re: Sprint carbs
PostPosted: Thu Jan 14, 2021 10:18 am 
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So are you saying that they are not AUD633's or that Burlen Fuels are wrong about the 633s being 76 on?

Graham

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The 16v Slant 4 engine is more fun than the 3.5 V8, because you mostly drive it on the upslope of the torque curve.

Factory 1977 TR7 Sprint FHC VVC 697S (Now all of, but still needs putting together)
B&Y 73 Dolomite Sprint UVB 274M (kids!)
1970 Maroon 13/60 Herald Convertable (wife's fun car).


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 Post subject: Re: Sprint carbs
PostPosted: Thu Jan 14, 2021 6:57 pm 
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Joined: Thu Oct 06, 2011 12:13 am
Posts: 2900
Location: The continent
Quote:
So are you saying that they are not AUD633's or that Burlen Fuels are wrong about the 633s being 76 on?

Graham
Not late ones. Early type body. The rear one isn't even a Triumph Dolomite Sprint one, looks like a Volvo one.

Jeroen

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Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com


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