Rear 5-Lug with 944 Parts, PART II, update & pics ... Options

[SirAndy]

so it looks like there's going to be some minor machining required after all.

turns out, the 944 Turbo CVs are 4mm thicker than the 914 CVs which means the 914 axle shaft has to be machined down a bit for them to fit.

see pictures below ...

(IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) Andy


1 - 914 shaft on top, 944 shaft below
(IMG:http://www.914world.com/bbs2/uploads/post-11-1123372532.jpg)

2 - closeup, for difference, see table below ...
(IMG:http://www.914world.com/bbs2/uploads/post-11-1123372553.jpg)

3 - 4 mm needs to be removed from the 914 shaft to accomodate the 944 CV
(IMG:http://www.914world.com/bbs2/uploads/post-11-1123372569.jpg)

4 - 914 CV on the left, 944 CV on the right
(IMG:http://www.914world.com/bbs2/uploads/post-11-1123372588.jpg)

5 - 914 CV on the left, 944 CV on the right
(IMG:http://www.914world.com/bbs2/uploads/post-11-1123372608.jpg)


Dimensions:

914 Shaft, dia. = 25mm, length = 514mm
944 Shaft, dia. = 26mm, length = 540mm

914 CV, dia. = 94mm, width = 31mm
944 CV, dia. = 100mm, width = 35mm

[Randal]

Had to resurrect SirAndy's classic thread on 944 turbo CV joints.

Just a heads up.

I'm not sure that it was mentioned anywhere, but here is one thing to check before you get back out there with your car.

Be sure to measure the distance between the new 944 (much wider) CV joint and the back of the out put shaft. The output shaft is the one that bolts to the transmission.

You want the 8mm (1.25) bolts to go all the way through the output flange and come out on the other side. Probably 8-10mm.

I wasn't thinking when I put mine back in and used the 45mm bolts that were previously holding on the 914 CV. Well they are short and you will end up stripping the flange when you torque them in, i.e., they are not engaging all the thread.

So make sure you have about 8-10mm showing out the back of the flange when the bolts are installed through the 944 CV's.

Also make sure you are using the 12 (whatever) grade bolts.

These flanges aren't cheap, so best to do it right the first time. (IMG:style_emoticons/default/dry.gif)

[SirAndy]

Had to resurrect SirAndy's classic thread on 944 turbo CV joints.

Just a heads up.

I'm not sure that it was mentioned anywhere, but here is one thing to check before you get back out there with your car.

Be sure to measure the distance between the new 944 (much wider) CV joint and the back of the out put shaft. The output shaft is the one that bolts to the transmission.

You want the 8mm (1.25) bolts to go all the way through the output flange and come out on the other side. Probably 8-10mm.

I wasn't thinking when I put mine back in and used the 45mm bolts that were previously holding on the 914 CV. Well they are short and you will end up stripping the flange when you torque them in, i.e., they are not engaging all the thread.

So make sure you have about 8-10mm showing out the back of the flange when the bolts are installed through the 944 CV's.

Also make sure you are using the 12 (whatever) grade bolts.

These flanges aren't cheap, so best to do it right the first time. (IMG:style_emoticons/default/dry.gif)

(IMG:style_emoticons/default/agree.gif)

I used a set of 944 bolts. They seem to be the correct length ...
(IMG:style_emoticons/default/shades.gif)