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Quote:
Originally Posted by sugarwood View Post
Ivan, I've already inspected and posted a video above of that u-joint in the smuggler's box.
I meant I am going to inspect the other one, once I find out where it is.
You have a video of ONE of the u-joints. There's another one located exactly where Ivan said it is... in the frunk..

Edit: I see that you found the other. Now make sure the bolts are tight. You could have a worn out steering rack causing your play as well. My 85 with "unknown" miles (estimated to be around 250K as that is what was on the odometer before I had to replace it) doesn't have anywhere close to that much play. Again, if I turn the wheel that much, I'd be doing a lane change. It's either rack, tie rod ends or linkage u joints. You have an excessive amount of play. If I wiggle my wheel slightly you can watch the front end moving back and forth.

Last edited by cabmando; 12-03-2017 at 09:50 AM..
Old 12-03-2017, 09:45 AM
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We drive our old air cooled cars because they look cool, smell like no other car (burnt oil/metal, leather), Fun to drive and so on. But....compared to a modern VW GTI, Honda SI or any Subaru, they are like a truck. Whenever I meet my friend on the Capistrano Ortega highway and we drive his Cayman 25 miles east, on my way home to San Diego my 85 911 does feel like a truck! Not a bad thing, just an old sports car. And my steering is tight!
Old 12-03-2017, 09:58 AM
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those u-joints are really overkill for the steering of a lighter car like the 911. I doubt the u-joints are your issue.

I had a light click in my steering after an alignment efforts some years ago and the fix was simply to loosen each u-joint, turn the wheel from side to side, hop on the front bumper to exercise the suspension and retighten. click went away as there was an ever so slight bind resulting in the clicking effect.
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Old 12-03-2017, 10:02 AM
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I don't know know how to remove the cover, so I am unable to inspect the upper hidden u-joint.

You can also see the air vent flap cable near the back.
Does it need to be removed?

I see a guide nipple that does not have a nut or anything, yet the cover does not budge.
Is it glued into place?

That cable is VERY brittle. Does it need to be removed? If so, how do I detach that round connector?

Unfortunately, I can follow directions, but can not work from intuition.
I am going to see if the Bentley has step by step process.




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Last edited by sugarwood; 12-03-2017 at 10:13 AM..
Old 12-03-2017, 10:10 AM
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Quote:
Originally Posted by cabmando View Post
If I wiggle my wheel slightly you can watch the front end moving back and forth.
My 81 has absolutely no slop with 100+k miles. I did install turbo tie rod ends ten years ago. I turn the steering wheel and the tire moves, lock step.

You will find it. Just rent some of that killer instinct Ronnie and I tell you we have.
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Old 12-03-2017, 10:16 AM
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i have to say sorry i forgot ,you have to remove the fresh air blower unit.4 phillips screw to remove the grill(on video 9:20) .Under it are two phillips head screws which hold the unit in place....

here is a little video .You do not need to separate the fan from it....

Ivan
https://www.youtube.com/watch?v=p3ik9Bo69D0

Last edited by proporsche; 12-03-2017 at 10:25 AM..
Old 12-03-2017, 10:23 AM
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Quote:
Originally Posted by proporsche View Post
sugarwood..the best to locate play in the steering is..Car has to be on the ground not in the air..
Alternatively, lift car, turn the key to on to free up the steering lock, get under the car and have your pal pull on a front wheel at 9:00 and 3:00 o'clock. That may highlight your slop. Of course, easier said than done if it's in some abyss that you can't see.

Thinking about it, maybe best to have the steering wheel locked if you do the in the air thing. Then the steering wheel is planted.
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Old 12-03-2017, 10:28 AM
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. . . Just rent some of that killer instinct Ronnie and I tell you we have.
That's one of the many qualities about me that your sis finds so attractive, Bro!
Old 12-03-2017, 10:58 AM
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Quote:
Originally Posted by sugarwood View Post
No, my wheels are not bent. But, I don't see how that would relate to steering slop.
A bent wheel would just cause vibration, but you could still have tight steering with a bent wheel and vibration.
Vibration + time = wear

Plenty of things between the wheel and the steering wheel to damp out that vibration so that you never feel it at the steering wheel, but that doesn't mean its not there wearing out everything in between.



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Old 12-03-2017, 02:21 PM
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Quote:
Originally Posted by proporsche View Post
i have to say sorry i forgot ,you have to remove the fresh air blower unit.4 phillips screw to remove the grill(on video 9:20) .Under it are two phillips head screws which hold the unit in place....

here is a little video .You do not need to separate the fan from it....

Ivan
https://www.youtube.com/watch?v=p3ik9Bo69D0
I am unable to remove the fresh air blower.
I removed the grille and the 2 large screws behind the grille.
The entire unit is still held in place, and does not come loose at all.

The video Ivan posted looks nothing like my 911.
Mine has tons of cables and hoses like an octopus.
I have a feeling removing this is a semi-major project.

Does anyone know how to remove this,
so I can remove the u-joint protective plate?

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Last edited by sugarwood; 12-03-2017 at 03:34 PM..
Old 12-03-2017, 03:26 PM
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Quote:
Originally Posted by Bob Kontak View Post
Alternatively, lift car, turn the key to on to free up the steering lock, get under the car and have your pal pull on a front wheel at 9:00 and 3:00 o'clock. That may highlight your slop. Of course, easier said than done if it's in some abyss that you can't see.
.
Bob, I already had a helper turn the steering wheel with the wheels up in the air, and with the car on the ground. There was no play visible in the tie rods, as shown in the video I posted in #69. There was no audible clunk when reversing directions. I doubt it's the tie rods at this point.
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Old 12-03-2017, 03:29 PM
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I see a ten MM bolt at five o'clock.
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Old 12-03-2017, 03:30 PM
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This thread is a mess, so I am summarizing.

1) While parked and off, the wheels show no lag from the steering wheel.
2) There is no play with the tie rods, on either side. (in air and on ground)
3) The lower u-joint has no play.
4) The upper u-joint is a nightmare to access. TBD.

5) Steering box is the last culprit ???
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Last edited by sugarwood; 12-03-2017 at 03:46 PM..
Old 12-03-2017, 03:36 PM
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Quote:
Originally Posted by Bob Kontak View Post
I see a ten MM bolt at five o'clock.
I think that bolt keeps the fan on the housing.
Ivan said I can remove it all as one piece (no need to remove fan from housing ducts)
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Old 12-03-2017, 03:37 PM
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I am very confused on how a steering rack can create slop in the first place.

The pinion gears convert a rotational force into a lateral movement of the rack.
But, the gear teeth are locked together so how can there be any slippage at all?

Next, the rack is connected to a tie rod. The inner tie rod is just screwed into the rack.
So, I don't see how there can be play on the inner tie rod. No ball joint. Just a threaded rod, right?

I've already verified the out tie rod ball joints have no play.

So, I am not even sure what we are looking for anymore.
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Last edited by sugarwood; 12-03-2017 at 03:59 PM..
Old 12-03-2017, 03:51 PM
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Pictures




Here are pictures. I can't rotate them properly. I have lost my patience.
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Old 12-03-2017, 03:56 PM
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Thanks for the pics, Pat.

Damn, that upper u-joint is almost at the firewall. That's buried far in there.
No wonder the entire heater system needs to be removed.

Know my limits, so I won't proceed unless I can find step-by-step directions
for removal of all these hoses, blowers, levers, and cables.
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Last edited by sugarwood; 12-03-2017 at 04:47 PM..
Old 12-03-2017, 04:01 PM
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if you've exposed one of the u-joints and turned the wheel while observing one set, upper or lower and there is no significant slop or play at that joint or the rods coming into & leaving the observed joint id think you can cross that off your list. as I stated earlier those u-joints are fit to steer a tank.

why not take it to a shop, a Porsche familiar shop and have them access/diagnosis the issue? id have paid the $150 or so for that over enduring the dressing down you have here.

I know the oldtimers may find this laughable coming from me, but your reputation proceeds you.
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Old 12-03-2017, 04:04 PM
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Why would I rule out both u-joints after only seeing one?
A few posters said their upper u-joint was the one with the issue.
If I can find directions on how to remove the HVAC system to visually inspect the upper u-joint.

How a steering rack can create slop in the steering?
The rack and pinion teeth are metal, and there is no play between the 2 parts.
Is there a video or photo of the inside of the rack?
I'd like to see what screws might have come loose, or that rubber thing that disintegrates.
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Last edited by sugarwood; 12-03-2017 at 06:15 PM..
Old 12-03-2017, 05:01 PM
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Old 12-03-2017, 05:12 PM
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