911SC 1982 Y Indicators and Hazards stopped working

[Guest]

Hello again

I have a bit more info concerning my ealier December post (below). I have noticed that when the car has been running for sometime the indicators and hazards stop working, but when its laid up on the Drive for 2 days, they start workign again, this is really confusing me, please help guys, I am pretty certain its the relay, but now I have an issue in locating the relay. I have a box attached to the wing in the luggage area in the front of the car containing cylindar like relays and fuses, but I have also read many articles saying the indicator relay is behind the dash, please could someone shed some light, as my Bentleys Service Manual still has not arrived. Its an 82 Y Reg UK 911 SC.


Many thanks in advance once again.

Roy.

PS. Thats my car in the picture.


ORIGINAL POST:

http://www.porscheclubgbforum.com/tm.asp?m=88917&mpage=1&key=&#89031

 

[RSGulp]

Roy,

I must apologise as I mislead you with my previous post. The cylindrical relay in the fuse box I was referring to is actually the horn relay (doh!). Mind you, I stick by the advice about carrying a spare fuel pump relay.

I've had a quick flick through my Haynes manual and it seems the flasher relay is accessed from inside the front luggage compartment behind the cardboard cover panel on the drivers side of the car. It says there will be a group of relays - two cylindrical and one is the more usual box type. The box type is the flasher relay. I guess yours is working fine when cold but once it warms up it's not switching properly. Or it may just be corroded contacts which need to be cleaned up.

For a replacemeent you could try Halfords as a first point of call - I can't imagine the flasher relay is unique to Porsche so any similar 12v indicator relay should work as long as the blades have the correct configuration.

Good luck and let us know how it goes,
Rich Claridge

 

[Guest]

Hi Rich

Apologies for delay in getting back to you. Right well I have some news on this problem. I managed to locate and removed relay, basically remove clock and speedo and there it was. I then went to halfords, checked the book for the correct relay for the Porsche, fitted it tested hazards all ok, but when tested indicators left and right both Green Arrow dash indicator lights would flash as well as the correct direction indicators lights on outside of car, ie, indicate to go left and works fine outside, but both green arrows flash instead of direction light on dash board, weird. Not happy with this I put the old relay back in and it worked, then it would'nt, to cut a long story short I notice that it stopped when moved, so I decided to remove the plastic case surrounding the relay and found that where the 4 blades connect to the PCB of the relay, there was dry solder joints causing a break, so with soldering iron heated and a real of solder I resoldered those joints, refitted relay tested and all working perfectly even when I am moving the relay and pulling at it whilst indicating, I am very pleased with the result, but also very puzzled why the new relay did what it did.

Thanks for your help, much appreciated.

Kind regards

Roy.

 

[RSGulp]

Nice one, just the kind of result I like to hear... dismantling and fixing a faulty part rather than simply putting a new one in.

One of my pet hates is the way the majority of so called mechanics these days are really just 'problem diagnosis and part swappers'. I find this especially with my newish VW Golf. They're experts in knowing how to remove a part and install a nice shiny (and expensive) replacement - but would they how to get the car going at the side of the road out in the sticks? [ Reminds me of the time I replaced a snapped throttle cable on an old VW at the side of the road, in the rain, with a tent string on the way back from Santa Pod. There were a few funny looks as I drove down the motorway with my hand hanging out of the quarterlight holding a piece of string running outside the car, through the engine lid, round the back of the carb, and pulling the throttle arm!]

So often one small component breaks which would cost pence to replace if you could buy it off the shelf, but we're forced by the manufacturers to buy a 'ready to fit complete replacement which costs £££s.

Anyway back to the thread, did you get the alarm/immobiliser working?