fuel pump pressure

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fuel pump pressure

Post by Mintys-turbo-mk1 on Wed Jul 17, 2013 11:52 pm

I'm having running problems with my lancia engine. At one point it would not start it will now but not very well.
A mate has said it may be the fueling. I'm getting 38psi/2 bar from the pump is this about right?
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Re: fuel pump pressure

Post by charliemk1 on Thu Jul 18, 2013 6:35 am

You should be getting 5 bar + from the pump Ben. The FSE reduces the pressure at the rail to 3 bar at idle, then increasing with boost.. Your old engine was running 5 bar at idle when I checked the fuel pressure Smile. Are you using the same pump?
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Re: fuel pump pressure

Post by Mintys-turbo-mk1 on Thu Jul 18, 2013 10:36 am

Thanks Charlie
I'm using the same pump. I'm getting about 2 1/2 bar on idle but don't have an fse. Will have a look tomorrow and see wot the pump is when the engine is not running.
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Re: fuel pump pressure

Post by charliemk1 on Thu Jul 18, 2013 10:54 am

I would guess your pumps had its day mate, as they need 3bar just to run.

That's possibly why the regulator on your old lump was turned up too high when connected to a pump that worked proper
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Re: fuel pump pressure

Post by Mintys-turbo-mk1 on Thu Jul 18, 2013 11:03 pm

I'm still getting 2 1/2 bar with out the engine running so the pump is fucked. I have adjust the pressure to 6 bar and it runs Very Happy 
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Re: fuel pump pressure

Post by Dunc on Fri Jul 19, 2013 1:26 am

YES! glad you sorted it! Told you on the phone it sounded pump related Very Happy

Dunc
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