Won't start Options

[Hammy]

Well we just got the 914 out of the shop and running right (When it started).
So I pull up in the driveway after driving my step mom around, showing her how good it finally runs, and I kill the engine going up the driveway (yes.. still learning the clutch)

So I go start it up again, and I get nothing. Turn the key all the way and you can hear the fuel pump running, but nothing else goes. This happened before, but our *old* mechanic did some sort of start wiring 'relay' I believe he called it. Well now that seems to be a temporary fix 'cause it still won't start a day later. What gives? (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif)

[ClayPerrine]

QUOTE (RandyLok @ Feb 18 2005, 06:10 PM)

BTW, mine had a starter relay installed by PO as well, which I promptly removed. The car did not come with a starter relay, and does not need one added. The solenoid functions as a relay for the starter. If PO installed a relay it's because he hacked instead of fixing the real problem. You just need a good clean power feed from the ignition switch to the solenoid (big yellow wire). Bonus for me, cleaning up my mess also fixed a couple of other weird electrical problems I was having (including headlights not popping up).

There actually was a FACTORY service bulletin that instructed technicians to add a relay to the starter circuit to fix a hot start condition. There is a factory kit for this. If here is a relay there, its not necessarly a hack.

The problem that happens with the hot start is that the solenoid gets hot and will not engage. There is not enough pull in voltage to the start terminal on the solenoid. By adding the relay, you shorten the path from the battery to the start terminal on the solenoid. This lowers the voltage loss in the circuit and allows the solenoid to engage even when the solenoid is hot. It has the bonus of reducing the voltage to the ignition switch, therefore extending it's life.