It is currently Sat Oct 20, 2018 4:12 pm

All times are UTC - 5 hours [ DST ]


Forum rules


Please click here to view the forum rules



Post new topic Reply to topic  [ 11 posts ] 
Author Message
PostPosted: Sun Jun 10, 2018 8:25 am 
356 Fan

Joined: Tue Dec 11, 2012 8:56 am
Posts: 149
Location: London and NW England
If have been sat in slow traffic or running at speed for a while , when I switch engine off it wont restart.
Just a slight dimming of ignition light but no noise whatsoever.
Leave it for a few hours and will restart like normal.

Push button start , 12 electrics , 912 motor
Have not searched this yet , but guess something needs replacing or repairing ? :(

_________________
1964 'C' and 1955 'Continental Outlaw'


Top
 Profile  
Reply with quote  
PostPosted: Sun Jun 10, 2018 9:58 am 
356 Fan

Joined: Thu Apr 01, 2010 4:35 pm
Posts: 882
JohnLiles wrote:
If have been sat in slow traffic or running at speed for a while , when I switch engine off it wont restart.
Just a slight dimming of ignition light but no noise whatsoever.
Leave it for a few hours and will restart like normal.

Push button start , 12 electrics , 912 motor
Have not searched this yet , but guess something needs replacing or repairing ? :(



You might get by with installing a hot start relay. But my experience is that usually means the starter is on it's last legs before it gives up the ghost.

_________________


Top
 Profile  
Reply with quote  
PostPosted: Sun Jun 10, 2018 10:06 am 
356 Fan
User avatar

Joined: Wed Mar 26, 2008 3:02 pm
Posts: 867
John check the grounds and all main power connections as metal gets hot it will expand and brake contact.


Top
 Profile  
Reply with quote  
PostPosted: Sun Jun 10, 2018 2:54 pm 
356 Fan
User avatar

Joined: Sat Apr 05, 2008 8:21 am
Posts: 3288
Location: Augusta,Michigan
Here is a nice hot start link: viewtopic.php?f=1&t=45560&hilit=hot+start+problem

_________________
1965 356C There is never enough time to do it right, but always enough time to do it over.


Top
 Profile  
Reply with quote  
PostPosted: Sun Jun 10, 2018 4:01 pm 
356 Fan

Joined: Sun Jan 31, 2010 6:50 pm
Posts: 1127
Starter bushing needs replacing. My first Porsche would crank strongly when cold but after even a slight warm-up, not the slightest reaction of the starter. Easy and inexpensive fix...of course, I learned the hard way, after Porsche charged me a fortune. As Harry Pellow used to say, "Experience is a hard teacher but a fool has no other!"
Of course, cleaning/replacing the ground cables, etc. also helps.

_________________


Top
 Profile  
Reply with quote  
PostPosted: Sun Jun 10, 2018 4:08 pm 
356 Fan

Joined: Wed Nov 23, 2011 10:52 am
Posts: 3348
Location: Cleveland, Ohio
My first Porsche acted that way due to a bad ground strap. For six months I had to either count on staying where I went for a couple of hours, or bring a friend to help push-start. The bushing seems to be the most common fix, though.

_________________


Top
 Profile  
Reply with quote  
PostPosted: Mon Jun 11, 2018 8:05 am 
356 Fan
User avatar

Joined: Tue Mar 20, 2012 10:21 am
Posts: 670
Location: London
I had a hot issue on my 6v car. Worth checking the wiring from the positive battery to light switch and then the ignition switch. Mine had decay badly and was worse when heated up.


Top
 Profile  
Reply with quote  
PostPosted: Mon Jun 11, 2018 8:17 am 
356 Fan

Joined: Tue Dec 11, 2012 8:56 am
Posts: 149
Location: London and NW England
Thanks for the responses so far guys , have had a look at the thread referenced.

Just for clarification , when the starter wont work it is not even trying to work , there is no movement or noise , you know that you have pushed the starter button and it has operated because the red ignition light dims ( I dont have key start but pre A button start)
The engine is a 912 type , the electrics are 12v , so assume the starter will be 912 type . I might stick my head under the car to examine further , don't like that confined space much so not rushing to do it !!

.

_________________
1964 'C' and 1955 'Continental Outlaw'


Top
 Profile  
Reply with quote  
PostPosted: Mon Jun 11, 2018 8:28 am 
356 Registry Member
User avatar

Joined: Tue Oct 27, 2009 5:02 pm
Posts: 6488
Location: SE Michigan
Starter can not be a 912. Won't fit.

_________________


Top
 Profile  
Reply with quote  
PostPosted: Mon Jun 11, 2018 11:14 am 
356 Fan
User avatar

Joined: Sat Apr 05, 2008 8:21 am
Posts: 3288
Location: Augusta,Michigan
The reality is that it s usually not one thing. One thing may make it better but not correct. Here is my favorite way to look at the problem. http://www.cyberwerkstatt.com/Members_O ... ooting.htm Could be starter bushing, could be starter itself, could be wiring. Could be your ignition although it sounds like someone has rewired ignition already to try to fix.Even if you replace the starter bushing and it works I have found that every single wire end should be renewed to good copper. When everything is renewed you will never have a problem again. Sometimes hard to get to that point though. A perfect example is my own a few years ago. I completely restored my car including new wiring harness and all ground wires new, etc etc etc. Everything was new or rebuilt. Car would only crank slowly and hard to start. Drove me nuts. I went through the starter troubleshooter and it ended up being the brand new Bosch Premium rebuilt starter. New starter from abcpartswerks.com (see ad in the Registry magazine) and all is well and starts easily. PS every wire end on your car is now 63 years old. Consider having every wire end at starter and battery renewed.

_________________
1965 356C There is never enough time to do it right, but always enough time to do it over.


Top
 Profile  
Reply with quote  
PostPosted: Mon Jun 11, 2018 12:03 pm 
356 Fan

Joined: Tue Dec 11, 2012 8:56 am
Posts: 149
Location: London and NW England
Vic Skirmants wrote:
Starter can not be a 912. Won't fit.


Hi Vic , the engine no is 832331 and the transmission no is 62379 . Does that narrow it down ?

_________________
1964 'C' and 1955 'Continental Outlaw'


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Google [Bot]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group