The clock runs, but not for long. If I set it, it will keep time for the day, but then it stops. Seems like it usually stops overnight.
Anybody know why this is happening?
It's been this way since I got the car back in 98. Now I'm just curious and would like to know; is it something that I'm not setting correctly?

Duncan

 

NICE?!? Avatar Marc A. and so it's broke HUH?

Duncan

 

Okay, when I purchased my 911/964 in Bavaria several years ago, the Porsche Garage there told me that normally due to the shocks from bad roads, the Quartz mechanisms go askew and are often replaced by new clocks or tolerated. They were impressed that mine continued to tick, evidently they’re expensive. Perhaps you can find one at the auto wreckers. Thanks for the compliments. Your edging strip on the soft top looks good...
Take care, Marc...

 

I actually have an old clock - replaced because it caused some of my warning lights to stay on until the engine hit 3000rpm. Since then, I've learned I could have just re-soldered the joints on the back.

I could send it to you - but, I remember when I bought it that the C2 and C4 part numbers were different (although I have no idea why).

 

New clocks can be purchased from Performance Products. Old ones can be re-habbed by North Hollywood Speedometer. A word of caution - I pulled mine and sent it off to North Hollywood to be checked out and continued to operate the car while the clock was out. I was amazed to find that absence of the clock and the interuption of varous circuits that tied to the "idiot lights" actually affected the operation of the car. Everything returned to normal when the clock went back in.

 

Considering the variety of problems they can cause, I am beginning to think there is increasing evidence that it's not the DME which is the brain of our cars - it's the clock.

 

My clock has been pulled as I've had to put a 993 one in to compliment the 993TT engine that went in...needs it for the imobilizer. I was always amazed at the clock as it ran perfectly...never missed a beat got fast or slow or anything. Its here in my office...if you need a good one, I'd part w/this. Don't know what its worth. Its out of a '94 C2.

 

That kind of proves my point - I fitted a 993TT engine so I had to replace the clock!

 

Yeah...w/o the correct clock the 993TT engine won't run! Guys who want to run a boost gauge in the clock hole have to wrap the clock in a rag and secure it behind the dash some where "safe".
Kooky stuff. At least I'll always know what time it is.

 

Thanks for the help guys. I just did a tune-up because it just didn't seem to be running right. After new wires, plugs, caps, rotors, coils and ignition modules, it still seems to run the same. It's been running a bit rough since purchase and the whole time it could've been related to the clock?

Good stuff to know, maybe I'll look into replacing it soon,

Duncan

 

https://rennlist.com/forums/showthre...ighlight=clock
01-11-2006, 09:34 AM
"Most of these problems with the clock can be resolved by re-soldering the 15-pin connection at the rear of the clock. Over time, the connections develop a high resistance and interfere with all sorts of electrical interactions including the alternator charge circuit. It's this which causes the lights to goes off when the engine reaches 3000 rpm.
If you are adept with a soldering iron and sucker the fix takes about 15 minutes and costs you nothing. Much better than $$$$ for a new clock.
Regards
Dave__________________
'89 LHD C4 Coupe (non-factory Turbo-look) in Trophy Yellow
'04 BMW 330i in Estoril Blue
'03 Pug 206 HDi van in White
http://www.computamedic.co.uk/Porsche/
http://www.petrolheads.co.uk/member...asp?carId=17936
http://www.p-caronline.com/directory/computamedic/
RLM#: 041205-5250"

 

Interesting... Something new everyday to learn about this unique Sportscar...
Now I understand why the clock was checked out in Bavaria by Porsche when I was buying my 964 privately... Good question = great info...
Bravo RN!!..

 

Wernt you doing some super dooper cheap for us tuneup write up a while back? Did i miss the conclusion of the work

 

I posted the final cost and made mention that if there was anyone interested in where I purchased the parts, they could pm me and I would relay that info. I wasn't sure if it would be appropriate to advertise for those parts houses on the forum since they do not sponcer the Rennlist.

Duncan

 

Did you ever get anywhere with making the ignition wires from bulk Beru wiring?