[urq] Intermittent no start, now a weird intermittent start.

[Keith]

Latest update - before I start removing wires and cleaning up 
terminals/connectors.
The connections to the battery are good, clean and secure.
The connections to the alternator and starter are good and secure but yet to 
be determined if they are clean.
The solenoid has a heat wrap on it (from my old starter) and my exhaust is 
wrapped in heat proof bandage and I haven't been on long trips so I don't 
think heat soak is an issue.
I put the meter on the battery - 12.33v With the ignition on, this drops to 
around 12v. When I start the car (it started first time!) the voltage 
momentarily dropped but once running and stable the meter showed steady 
12.6v.
Going to have a look at the alternator end of the leads and see if these 
need cleaning up. In doing the head gasket job the only wiring I have 
disturbed (to do with starting) are the earth wires to the cam cover, the 
starter wires, the battery terminal connections and that's it. Are there any 
other main earth leads from the block? Those two wires to the cam cover 
don't seem enough.
Will update when I know more but any further suggestions welcomed in the 
meantime.
Cheers

Keith

'87 WR

-----Original Message----- 
From: Keith
Sent: Wednesday, June 19, 2013 5:19 PM
To: urq at audifans.com
Subject: [urq] Intermittent no start, now a weird intermittent start.

Sometime ago I put up a series of posts about an intermittent no start where 
it sometimes would start fine and sometimes I’d turn the key and nothing 
would happen, not even a click. However if I rocked the car a bit whilst in 
gear, it would start. Not only was this a pain when it happened it was a bit 
embarrassing too. I put up with it for far too long.....because it was 
intermittent.
Anyway after getting it all back together and up and running following the 
head gasket job I resolved to purchase and fit a new starter motor which I 
did today. (had a day off work quattro day in the sunshine!).
Now the new starter turns every time and whirrs nicely like a starter on a 
modern new car but..........after initially starting reasonably well the 
next time it turns slowly like the battery is run down and doesn’t fire. So 
I charge the battery up which surprisingly didn’t take long so it couldn’t 
have been too low. This time it fired up. I went for a short drive, came 
back, switched off. 5 Minutes later tried to start it and it turns over 
slowly like low battery but won’t start. Battery showing 12.33v and when I 
put it on the charger it shows fully charged. I am not great at diagnosing 
electrical faults. Fine at repairing them but not good at identifying them.

Anyone have any ideas what’s going on. Sorry to be monopolising the list at 
the moment but having a beautiful car and wonderful weather.....yes that’s 
right wonderful weather in England...I’m really disappointed not to be able 
to be out enjoying it on the open road. So if you have any ideas, as usual, 
I will be most grateful. Many thanks.

All the best

Keith

‘87 WR
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