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TRANSIT BALLJOINT?
quattromike - 27/2/05 at 07:53 PM

Hi all
can someone confirm to me the taper on the mk1 transit ball joint to be 15 degrees included angle? i've done a search but i cant find the conformation of the taper angle.
i'm hopeing to find a tapered reammer to make my inserts but i kinda need to know the taper before i look for one


flak monkey - 27/2/05 at 09:05 PM

Drew this a while ago...correct as far as i know:

Description
Description


15 deg included angle...

Hope it helps

David


Steve Hnz - 28/2/05 at 03:12 AM

Not sure what it is in degrees but they have a 1:8 taper, or 1 1/2" to the foot in the American way of expressing this . HTH, Steve.


NS Dev - 28/2/05 at 08:45 AM

1:8 taper is 7.2 degrees.


quattromike - 28/2/05 at 10:24 PM

Cheers david,
thats a handy pic although it looks like 7.5degree angle! can i take that as gospel?


Rorty - 1/3/05 at 04:01 AM

The included angle is 14.250032 degrees, not 15.
If you don't have accurately mating tapers and seats, the nuts on the taper studs will forever loosen.
If you overtighten the nuts to compensate, you run the risk of breaking the stud while you're driving along.


flak monkey - 1/3/05 at 12:10 PM

So...i need to change my drawing then?


James - 1/3/05 at 12:23 PM

Quattromike,

You can get some lovely ally ones from GTS. They're about £25-30 IIRC.

HTH,
James


quattromike - 1/3/05 at 04:29 PM

Hi James
do they make the alloy ones to fit the cosworth upright?
I think even if they do i think it would be just as cheap for me to make them myself+ i can do an offset hole going though at whatever angle to suit my suspention setup.

So it's 14.25degrees then cheers Rorty

Mike.


quattromike - 14/4/05 at 12:01 PM

Hi again
I've searched for a while to find a 14.25deg reemer and the best i can find is 14deg does it really matter that much? my oldman rekons if it has to be that fussy i'd be better taking it out to the 14 deg and then bed it in with smooth grinding paste to get a perfect fit. would this work ok?
cheers mike


quattromike - 17/4/05 at 10:53 AM

I found a company that can make the exact taper for me but they are wanting £140+ for it so thats a bit out of the question too. I really need one now as i'm making my rear uprights and i'm using transit ball joints on the top of them as well so i'm gonna have to do something about it


Steve Hnz - 1/5/05 at 11:59 AM

Quattromike, have a look at this thread, there may be some useful addresses for you. cheers, Steve

[Edited on 1/5/05 by Steve Hnz]


quattromike - 6/5/05 at 05:06 PM

Thanks steve but i don't think your link worked or at least i couldn't find it!

Cheers anyway Mike


Alan B - 6/5/05 at 07:01 PM

I'll echo Rorty's post...getting the taper pretty damn near spot on DOES matter otherwise it just doesn't seat correctly.

When looking for reamers search automotive tool suppliers rather than regular machine shop suppliers and specify it in inches per foot rather than the angle.


Alan B - 6/5/05 at 07:04 PM

Examples...

http://www.secu reperformanceorder.com/afcostore/getproduct.cfm?CategoryID=8&ClassID=121&SubclassID=565&ProductID=2631

http://www.secu reperformanceorder.com/afcostore/getproduct.cfm?CategoryID=8&ClassID=121&SubclassID=565&ProductID=2632

http://www.stockcarproducts.com/susp13a.htm

Scroll down on the 3rd link.

[Edited on 6/5/05 by Alan B]


quattromike - 9/5/05 at 08:18 AM

Thanks for the links but your too late i ended up straping an angle plate on to the face plate of the old DSG type 25 and set the top slide to the desired angle and machined it out with great precision. took forever to do but it's a good fit and i'm happy enough with it.
Cheers any way, Mike