Donut remanufacture

[tdafforn]

Hi All,
Was at the Race Retro show at the weekend and met a chap whose company has had Donuts remanufactured.
they claim that they are being made using the original molds and the original spec rubber and steel inserts.
He also said they are NOT being made in Turkey (apparently the replica rubber component capital of the world!)
They are currently road testing a set in a racing hillman imp.
If anyone is interested I'll look out the details.
Cheers
tim

[trw99]

Tim

That's interesting. I thought, from comments here in the past, that one of the problems with replicating original doughnuts was that some of the rubber compound ingredients could no longer be used for legal/environmental reasons.

Am I wrong or has this company been able to replicate the recipe in some way? What is the company called?

Thanks

Tim

[rocket]

The problem with modern manufacturing rubber methods is that certain chemicals such as carbon black have either been restricted in production or removed completely.I did look a while ago at producing some doughnuts in polyurethane but as i have since switched to solid drives it fell by the wayside.I would believe though that the poly option may well have benefits.

Ian

[tdafforn]

Hi,
I quized the guy regarding the quality of the rubber and he said that to the best of his knowledge it was an exact match.
Not sure what that means.
Tim

[reb53]

"to the best of his knowledge ".

Bit of an out clause that one isn't it !
Wasn't the problem with the chemicals needed to bond the rubber to the metal?
( as noted with previous posters ).

Probably get them made in China without too many problems.......

Ralph.

[tdafforn]

Sort of also thought that, although the company seem very genuin and produce very high quality driveline parts for racers so I thought that producing "crap" donuts might be a bit of risk to their reputation..
I guess the problem here is we don't have a good way of testing the donuts to identify the good and bad ones!
Tim

[512BB]

I have just got back from a visit to Spyder. Whilst chatting to Andy, i noticed a set of Spyder driveshafts waiting to be fitted. Their driveshafts encorporate 1 donut and thus still cushion the transmission. I asked him if they had any problem with the donuts, re breaking up. He replied in the negative, stating that all the donuts come from the same place, and that he thought that the problems were caused by stockists buying large volumes of donuts to get a discount, and then having them in stock for years, with the rubber deteriorating. What do i know!!!!!