Starting My Mini Up
Posted 05 May 2013 - 05:03 AM
Hi, Please could someone advise.
I have fitted a stage one kit and have had to remove the original mechanical fuel pump, as the outlet rubs against the exhaust manifold down pipe.
I have now fitted an electric facet pump.
I now need to fit the oil pressure switch somewhere in the system. Please could someone tell me where and how to fit the switch into the system.
Thanks, Chris.
As seen on TV
Posted 05 May 2013 - 05:41 AM
Hi Chris, have you actually got the switch already?
The purpose is to provide a safety barrier in case of an accident or such. Most people find a better option is to fit a re-settable inertia switch instead. (as fitted to factory injection minis)
http://www.ebay.co.u...=item589f6971f8
The oil pressure version kills the power when the engine stops, the inertia one when it receives an impact or jolt. In the event of an accident, if the engine continues to run, then the pump will still keep feeding fuel, whereas the inertial one should trip. Another issue is that when starting the engine, you are reliant on the fuel in the float bowl until oil pressure is generated.
Regardless of type, from a wiring point of view, they need to be fitted "in line" on the power feed to the pump. That is, from a ignition controlled 12v feed, via a fuse, through the cut off switch and then on to the pump. If using the oil pressure type, then you may need a "T" piece to go in where the sender for the oil warning light is situated. If you have a gauge as well, you may already have a "T" in place which may hamper the ability to fit the cut off.
The pump will work fine without either, but for safety's sake, fit one.
Hope this helps
Regards
Steve
Mini Mad
Posted 05 May 2013 - 06:28 AM
wired mine in yesterday, threw instructions in bin and wired to igniton switch live and just put a inline fuse in
Starting My Mini Up
Posted 05 May 2013 - 03:40 PM
Hi Steve, Yes I have the oil pressure switch. It has 3 connections for the wiring, but the thread is too big for the existing hole in the block. The wiring side is complete. I just don't know how or where to fit the oil pressure switch or what connectors I need.
The mini is a 1984 998 mayfair. Any advice would be welcome (before I take the stage one kit off and fit a standard exhaust).
Thanks, Chris.
On Sabbatical
Posted 05 May 2013 - 05:07 PM
wired mine in yesterday, threw instructions in bin and wired to igniton switch live and just put a inline fuse in
It is EXTREMELY bad to have an electric fuel pump without some sort of crash cutout. A friend of a friend was unfortunate enough to crash a car once while he lived in California. He regained consciousness to the unforgettable experience of a jet of burning fuel from the fuel pump working like a cutting torch and slicing clean through his leg extremely slowly while he was trapped. You MUST fit some sort of automatic crash cutoff that doesn't rely on you being awake or able to turn the key to isolate the pump. I cannot stress highly enough how important this is. Instructions exist for a reason.
Mini Mad
Posted 05 May 2013 - 07:03 PM
wired mine in yesterday, threw instructions in bin and wired to igniton switch live and just put a inline fuse in
It is EXTREMELY bad to have an electric fuel pump without some sort of crash cutout. A friend of a friend was unfortunate enough to crash a car once while he lived in California. He regained consciousness to the unforgettable experience of a jet of burning fuel from the fuel pump working like a cutting torch and slicing clean through his leg extremely slowly while he was trapped. You MUST fit some sort of automatic crash cutoff that doesn't rely on you being awake or able to turn the key to isolate the pump. I cannot stress highly enough how important this is. Instructions exist for a reason.
wired mine in yesterday, threw instructions in bin and wired to igniton switch live and just put a inline fuse in
It is EXTREMELY bad to have an electric fuel pump without some sort of crash cutout. A friend of a friend was unfortunate enough to crash a car once while he lived in California. He regained consciousness to the unforgettable experience of a jet of burning fuel from the fuel pump working like a cutting torch and slicing clean through his leg extremely slowly while he was trapped. You MUST fit some sort of automatic crash cutoff that doesn't rely on you being awake or able to turn the key to isolate the pump. I cannot stress highly enough how important this is. Instructions exist for a reason.
we live in England where fuel is well over priced sooooooo if I crashed the only thing being suckd by pump is fumes
Super Mini Mad
Posted 05 May 2013 - 08:57 PM
I went belt and braces and fitted both an inertia switch and wired in a PS-64 oil pressure switch too. There a very good page on how to fit the oil pressure here... http://www.how-to-bu...-fuel-pump.html
Uncle Cooperman, Voted Mr TMF 2011
Posted 06 May 2013 - 11:12 AM
Edited by Cooperman, 06 May 2013 - 11:13 AM.
Mini Mad
Posted 06 May 2013 - 03:19 PM
wired mine in yesterday, threw instructions in bin and wired to igniton switch live and just put a inline fuse in
Darwins theory should take cars of this 
Sparkie
Posted 26 September 2013 - 09:06 PM
Or a Competition 3 terminal Oil Pressure Switch designed to work the Facet Pump
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