Help needed with spacer....

[JerDe]

Attached are two photos of a mess in the works..... Recently I broke a lug nut while trying to remove it.... after checking this board, I resolved to use a 3/4" hole saw to drill out the remaining piece of the nut. I did that, and removed the nut, but in the process I ruined the threads on the stud bolt. In trying to remove the spacer (?), I removed the 5 small bolts that I thought held it on, but after I removed the nuts, nothing happened...THe spacer will not come off and the small bolts have receded into spacer.... What am I doing wrong??? or maybe the Q should be "What am I doing right?" any help appreciated

[buster73]

No spacer, you are lookling at the front hub. You have to unscrew the center nut and remove the outer wheel bearing to take off the hub. The five small bolts just hold the brake rotor to the hub. Lots of work, but hopefully everything will come off easy - good luck.

[Bill Verburg]

Maybe this will help

the whole rotor hub unit is held on by the axle nut

rotor hub unit


Some one has modified yours, the dust cap comes off, under that is the axle nut

bare axle


backside of the rotor hub unit

[juanbenae]

you will never be able to get the hub back on with the caliper in place. you can not get to the back of the bolts that hold it on to keep them from spinning when you tighten.

this is whats refered to as a con-0-worms. you need to do what buster says, but 1st remove the caliper and swing it off the rotor. take both the rotor and hub off and you can access everything proper.

[JerDe]

Thanks for the quick help everyone..... This is great -- does anyone know the size of the axle nut... I'll probably have to buy a socket to remove it...

[Bill Verburg]

Yours has obviously been modified but usually all that you would need is a 6mm allen socket

[JerDe]

HELP Still having trouble removing the dust cover...... The bolt in the center is very short and has no function that I can see, unless it is just used to cover the threads which (?) may be used to run a longer bolt through to push the cover out ??? any ideas????

[jabb]

Try a Pipe Wrench or a Large Vice Grip on the Dust cover.
Once around the dust cover wiggle it around until the cover starts to come loose. Do not make the Pipe wrench of V-Grip to tight. The cover will crush easily. Do a serach on removing Dust cover. There may be some other ideas or pictures u can look at.

[jabb]

Hmmm looking at your dust cover it does not look like the original,
most stick out quite a bit from the hub so it is easy to grip externally. Not sure what is going on with yours or what the center bolt is there for......

[buster73]

I guess the dust cover was modfied and you can turn in a longer bolt to pull the cover out of the nut. If it works, this would be a clever modification which might be worth doing. Anyone else has experience with this ?

[Wil Ferch]

I don't get it....the dust cover looks "normal" for a turbo set up...just that it has a bolt installed. Can be bolt be removed? If so, thread in a slide hammer and whack away....

Caution ( ha ha) ..we broke a slide hammer taking these miserable things off. Why Porsche makes them of such heavy gauge and bullet proof is beyond me...

Wil

[widebody911]

I don't think the 'spacer' comes off separate from the hub

I have some details on removing this stuff @ http://rennlight.com/howto/brakes/front/

[Dixie]

What am I doing wrong???

Easy, RTFM....

Do not put another wrench to the car until you get some knid of manual for the car.

[Grady Clay]

I think what we are seeing here is the change in ’81 with
the 3.3 Turbo. The later version rotor bolts directly on the
extended hub. It didn’t use the intermediate piece and
the hub change negated the use of the wheel spacer.
"
"
© Dr. Ing. h.c. F. Porsche A.G.

Yes, you need to remove the two caliper mounting bolts
and set the caliper aside. You should pull the clip on the
strut that holds the brake hose-pipe so you don’t bend
the brake pipe. Some “bailing wire” to the top of the
strut works fine.

While the Factory wants you to use the slide hammer
VW 771, the door hinge tool P290 with threads 12 x 1.5
may also fit. I think the best puller is a modified long
bolt with a tapered end to fit the end of the spindle.

Your rotor looks very worrn.


Well, I'll try and post the image later.

I would measure the thickness. Spec minimum at wear
limit is 30.0 mm. If you have them machined, the Factory
limit after machining is 30.6 mm – closer than I would
run. If in doubt, get new rotors.

I would also check for the proper pads for the rotor. Clearly
these pads don’t cover the entire rotor surface. New rotors
and new pads go together.

Now is a good time to cycle the caliper pistons in their
bores. Aerosol silicone lube will help the seals. Inspect
everything carefully. Check after some driving for proper
function and possible leaks.

After 20 years, you should consider new rubber brake
hoses (all 4) and a new master cylinder. These are
pretty outrageously powerful 911s and your life depends
on great brakes.

Fitting new rotors to the hub requires some care. The
OE iron rotors were painted on the surface that contacts
the aluminum hub. Some of this paint can transfer to
the hub when you remove the OE rotor. You need to
carefully clean that contact surface and apply some
corrosion resistant coating between the new iron rotor
and the aluminum hub.

Search on front wheel bearing service. Now is the time.

Before you reattach the caliper, you should adjust the
wheel bearings to zero free-play and measure the runout
of the new rotor. Porsche spec is 0.05 mm, I would like
0.01 mm runout. Be sure and re-adjust for proper wheel
bearing play.

As with everything, the devil is in the details.

Best,
Grady

[buster73]

Originally posted by Wil Ferch
I don't get it....the dust cover looks "normal" for a turbo set up
Wil

Sorry - sure forgot the Turbo had a thread in the dust cover.

[JerDe]

Thanks again guys for all the help.... Just where can I get a manual for the 86 Turbo ??? Manuals I have found are for 911s and I dont want to waste my money on a manual that wouldn't pertain to me.

[Oh Haha]

Originally posted by JerDe
Attached are two photos of a mess in the works..... Recently I broke a lug nut while trying to remove it.... after checking this board, I resolved to use a 3/4" hole saw to drill out the remaining piece of the nut. I did that, and removed the nut, but in the process I ruined the threads on the stud bolt. In trying to remove the spacer (?), I removed the 5 small bolts that I thought held it on, but after I removed the nuts, nothing happened...THe spacer will not come off and the small bolts have receded into spacer.... What am I doing wrong??? or maybe the Q should be "What am I doing right?" any help appreciated