Removing Door Lock Knob?

Can you put a jpg. picture please...the one you put cant get open !

 

Have you tried holding the steel rod with a pair of pliers (lining the jaws with some cardboard to prevent marring the steel rod) while simultaneously pulling up and turning the plastic knob? (With that much of the steel rod exposed I'm surprised that it hasn't already come off.)

 

Yes, I see now in your photo that the door panel has been lowered. I think your only option is to hold the rod while pulling up (fairly hard) on the knob while turning it and hope that the steel threads can start to rethread themselves into the plastic material.

 

If not, you can push that rod and knob true the rubber ring on the panel...?!.

 

I am not sure it is threaded, it may be molded right onto the wire.

 

(Based on the SPC page you posted) I'm now not sure that knob is meant to come off (or can come off) -- since the knob and rod are a single part:

https://www.ferrariparts.co.uk/part/ferrari/61813600

Can you disconnect the other end of the rod (looks like it would use the same clip that you are trying to find)?

 

On the 308 the knob is threaded and there is a Philips head on it. You are probably stripped out. I did Auto Glass from the time I was 13 years old and have never seen a push down knob that wasn't threaded.

 

If the knob and the wire were 2 separate parts, this would also be drawn on the parts diagram. However, it is drawn as 1 unit....

 

Speaking of door locks, mine pop back up after I lock them with the key. I had the doors apart last year to clean the leather and tighten and lubricate all the parts inside.
Is there a specific adjustment I need to make?

 

Has something to do with the 2 electric solenoids. Maybe 1 of them is blocked in open position, so when closing with a key on the other side, it will pop back
.

 

Ok

 

You are right! they are not threaded like the 308. I have had them lose a couple of times and the right way is to unclip them at the lock.

These are regular clips and many old cars have them (the same) as well.

just an example:
12x Universal Car Door Handle Lock Rod Clips Universal Hand Plastic Fasteners | eBay

 

Interesting problem, I don't recall an fchat thread that has explained Exactly how this lock system works and how the two solenoids are interconnected, that would be lots of wiring to do that and opportunities for electrical gremlins. If you lock them from inside by pushing the button rather than using the key do they work ok? One side verses the other, does the problem present regardless of which button is pressed. Seems like a mechanism issue rather than electrical.

 

Amen! If you'd like to see the conglomeration of switches, wires, motors, and linkages that form this crazy system, see Fig 9 here:

https://www.dropbox.com/s/2flk2dj2g8an7ir/Mondial 3.2 Wiring 488_87 by Urs.pdf?dl=0

Items 102 are the manual switches, and items 75 are the "door locking actuators" that have two SPDT switches inside and some sort of solenoid/motor with a mechanical "linkage" connection to the key mechanism and knob rod.

 

Nice, thanks. Vapor Barrier...but did you cut a big piece of plastic out ?

 

If the actuators work, try taking apart the four wire connector that goes to them and applying some Dexot to the connection. The two lock actuators are connected and won't let you lock the doors if all is not well/properly configured with the system. If that doesn't fix it, then you probably need new actuators, I have a few extra if you need them.

My actuator on the drivers side was fried because water leaked down into it and there is always positive power going to the actuators.
Alden
See my thread here:
https://www.ferrarichat.com/forum/threads/door-lock-actuators-fried-with-ugly-pics.517525/#post-144590256

 

Hi JLF,
Mine would pop back also, but I found that this was due to the other side doorknob not being fully retracted into the lock position.
Now I hold the key to the lock position for about 3 seconds (or until both sides are well down) and there is no popping back.
Maybe worth a try before you dismantel the door mechanism.

 

Thanks guys for all the advice. I personally think it may just be an adjustment issue. But I’m not really looking forward to taking the doors all apart again.