Posts made in October, 2013

Ariel 7075 alloy valve spring seats and caps

Posted by on Oct 31, 2013 in News | 0 comments

Valve spring caps are always a good one to do in 7075 alloy as its strong enough and light. But they are very fiddly and tricky to make as accuracy is all important. I get cutters ground to the right angle (14 degrees) to form the taper for the colletts, but even so they take a lot of concentration and careful machining. The seats were a bit more straight forward but have an undercut in the bottom so again needed care in setting up to ensure concentricity.  

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Titanium top hat bushes

Posted by on Oct 30, 2013 in News | 0 comments

Here’s a pair of top hat bushes i’ve made for a customer. They are stepped inside, 7/16″ through the brim of the hat and 1/2″ up the spout! They are something to do with a car.

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Montessa titanium swinging arm spindle and suspension bolts

Posted by on Oct 29, 2013 in News | 0 comments

H&D Racing need another swinging arm spindle and 3 sets of suspension bolts for Montessa’s. They are quite popular, I think Marks trials buddies have cottoned onto titanium for its strength and lightness! They are a nice set to make, the swinging arm shaft takes a bit of time to get just right, its 13.95mm diameter turned from 7/8th bar so there’s a fair bit to chew off. This one is for the two stroke model which is about 15mm longer than the four stroke.

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Some more titanium car bolts…

Posted by on Oct 27, 2013 in News | 0 comments

These are for a different customer and a different car to the titanium car bolts i made a couple of weeks ago. I did ask what car these are from but I’d never heard of it and instantly forgot what he said. These are all UNF threads and imperial shank and head sizes, happily because of the way i manufacture i can do virtually any thread form as imperial sizes in titanium are nearly impossible to get hold of, unless you know me!

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7075 alloy M8x1 bolt

Posted by on Oct 26, 2013 in News | 0 comments

Here’s a little pair of M8x1 bolts i’ve made to hold a cover on a Honda CR125. The thread length is only 6mm which is barely enough to strike the thread on. Even on little fine threads like this and in alloy i screw cut them to ensure the thread is true, then chase them up with a die to get hard up under the head.

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