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Re: BMW 6 Series
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CarGuru > BMW > Re: BMW 6 Series 30 November 2006 03:00:30

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Re: BMW 6 Series

Chrum 25 April 2005 21:27:34
 I have a 1984 bmw633csi 3.2L my fuel pump stopped working so i bypassed the
external pump.now have fuel upto the injectors but it still wont
start?ether in the breather works for a minute than stops is there a relay
to open the injectors or what am I missing?

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Petri Haapanen 26 April 2005 12:56:08 permanent link ]
 Problem is that you bypassed the pump which makes the needed 3 bar pressure
for injectors.
Pump inside the tank is just a transfer pump which has no capability of
making necessary pressure.

"chrum" <tchrum@aol.com> wrote in message
news:fe0c104a64dc45­ffa336d6a9667802db@l­ocalhost.talkaboutau­tos.com...> I have a 1984 bmw633csi 3.2L my fuel pump stopped working so i bypassed
external pump.now have fuel upto the injectors but it still wont> start?ether in the breather works for a minute than stops is there a relay> to open the injectors or what am I missing?>


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KMS - Brett Anderson 6 May 2005 09:06:30 permanent link ]
 How did you bypass the pump? I assume you installed another pump that is
capable of the same 100psi and 3 litre per minute flow rates.

Brett Anderson
KMS - Koala Motorsport



"chrum" <tchrum@aol.com> wrote in message
news:fe0c104a64dc45­ffa336d6a9667802db@l­ocalhost.talkaboutau­tos.com...> I have a 1984 bmw633csi 3.2L my fuel pump stopped working so i bypassed
external pump.now have fuel upto the injectors but it still wont> start?ether in the breather works for a minute than stops is there a relay> to open the injectors or what am I missing?>


Add comment
Guest 30 November 2006 03:00:30 permanent link ]
 there are two fuel pumps on most 80;s bmws I think the (sure)that you dont have enough pressure to engage the injecters the pump in tank puts out only 7 lbs. of pressure,the inline pump pushes 35- 47 lbs which will start your car
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CarGuru > BMW > Re: BMW 6 Series 30 November 2006 03:00:30

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