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: Dolomite sprint wheels
PostPosted: Thu Jun 13, 2024 4:39 pm 
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Silly Question time....... Do sprint wheels have steel nut inserts???


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PostPosted: Thu Jun 13, 2024 7:29 pm 
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No, there made of ally so can strip easily


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PostPosted: Thu Jun 13, 2024 9:15 pm 
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Sprint wheels were at the forefront of alloy wheel tech (The Sprint was the first production car with Alloy wheels as standard, yada yada)

As such they didn't have steel inserts at all but relied on parallel ferrule flat seat alloy nuts to secure them, as did a lot of aftermarket alloy wheels of the same time period. Are you sure your new/old Compos aren't that type?

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)
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PostPosted: Thu Jun 13, 2024 9:36 pm 
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Location: deepest Sussex any further and my feet are wet
Deffo not flat seat, the seat within the nut hole is 45deg taper, whereas most taper seats are 60degs, after talking to Compomotive today the thought the wheels would have had a 45 degree taper insert with a internal 60 degree taper, now you have confirmed they have no inserts in the sprint wheels, Im going to grind up a counterbore and make the wheels fit the dolly sleeve nuts and not use inserts


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PostPosted: Thu Jun 13, 2024 9:54 pm 
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Location: Harrow Middlesex
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Deffo not flat seat, the seat within the nut hole is 45deg taper, whereas most taper seats are 60degs, after talking to Compomotive today the thought the wheels would have had a 45 degree taper insert with a internal 60 degree taper, now you have confirmed they have no inserts in the sprint wheels, Im going to grind up a counterbore and make the wheels fit the dolly sleeve nuts and not use inserts
Stag wheel nuts are 7/16 thread same as some Dolomites, but a lot of Stag wheel nuts are made in steel so less chance of stripping, to fit a Stag wheel nut to a Dolomite wheel you need to machine the wheel collar a bit as they don't fit a dolomite wheel, i know it works as i tried it myself


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