Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
EarlyBay Forums
Technical
Fuel pump relay and other starting issues
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Early Bay Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Clarkeatron" data-source="post: 644284" data-attributes="member: 32595"><p>Hi all, so quick electrical question. I have fitted an electric fuel pump to my 68 baywindow and it is great, but I bought a relay kit which uses a 5pin relay. The wiring is linked to the coil. The wiring set up was using an 87a connection which is a NC connection so the pump automatically turns on when the ignition is primed. Not good, because in a stall condition it will still be running. So I tried swapping the 87a with 87 pin on the relay. Now the priming switch turns on but the pump does not, even once the ignition switch is turned over. I have a similar issue with the alternator where the light doesn’t go out, but if I rev hard enough it supply’s enough voltage to complete the alternator circuit and the switch goes out. I think they are related (i.e the relay isn’t getting enough voltage to switch the relay) or I’m missing something obvious. Any ideas would be greatly appreciated?</p></blockquote><p></p>
[QUOTE="Clarkeatron, post: 644284, member: 32595"] Hi all, so quick electrical question. I have fitted an electric fuel pump to my 68 baywindow and it is great, but I bought a relay kit which uses a 5pin relay. The wiring is linked to the coil. The wiring set up was using an 87a connection which is a NC connection so the pump automatically turns on when the ignition is primed. Not good, because in a stall condition it will still be running. So I tried swapping the 87a with 87 pin on the relay. Now the priming switch turns on but the pump does not, even once the ignition switch is turned over. I have a similar issue with the alternator where the light doesn’t go out, but if I rev hard enough it supply’s enough voltage to complete the alternator circuit and the switch goes out. I think they are related (i.e the relay isn’t getting enough voltage to switch the relay) or I’m missing something obvious. Any ideas would be greatly appreciated? [/QUOTE]
Verification
Post reply
EarlyBay Forums
Technical
Fuel pump relay and other starting issues
Top
