Project MFI
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Project MFI
I have been fighting this for quite a while, and finally given in to temptation. I want to know how MFI pumps work, and there's no better way than to take one apart and rebuild it. I bought the Michael Burgess book, and an old pump, and intend to build a test bench and refurbish this pump.
My main objectives are
1) to understand how it works.
2) Bust some myths about these pumps.
3) to be able to set up a pump according to spec sheets
The rest we'll have to see how it goes. I like an adventure
Tim
Tim Bennett
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
Re: Project MFI
look forward to your investigations Tim I know you've wanted to do this for years now
James
1973 911 2.4S
1993 964 C2
2010 987 Spyder
1973 MGB Roadster
Its not how fast you go, but how you go fast
1973 911 2.4S
1993 964 C2
2010 987 Spyder
1973 MGB Roadster
Its not how fast you go, but how you go fast
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Re: Project MFI
Tim
I have a 2.2E pump, which is missing a couple of bits, would it be of any use to you?
I have a 2.2E pump, which is missing a couple of bits, would it be of any use to you?
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Re: Project MFI
That sounds like it would be very useful thanks Nick.
I do need a few things....
1 set of injectors,
a drive belt,
another drive pulley, either a cam end or another pump one that I can fit on the drive motor.
Anyone got any old ones that they don't trust, or want checking, are so worn that they aren't really fit for the spares collection any more ?
I figure if the injectors check out, I'll return them once I've tested them.
Tim
I do need a few things....
1 set of injectors,
a drive belt,
another drive pulley, either a cam end or another pump one that I can fit on the drive motor.
Anyone got any old ones that they don't trust, or want checking, are so worn that they aren't really fit for the spares collection any more ?
I figure if the injectors check out, I'll return them once I've tested them.
Tim
Tim Bennett
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
Re: Project MFI
Watching with interest Tim.
John
1970 2.2E Coupe.
2004 996 GT3 mkII
2015 Skoda Octavia VRS TSI DSG.
2021 Toyota GR Yaris Circuit Pack
1970 2.2E Coupe.
2004 996 GT3 mkII
2015 Skoda Octavia VRS TSI DSG.
2021 Toyota GR Yaris Circuit Pack
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Re: Project MFI
Hi Tim, I should have most things here. We generally fit new pulleys so I will see if any old ones have not been binned yet. I will look tomorrow.
Hth
Alan
Hth
Alan
http://www.canfordclassics.co.uk
Porsche Restoration & Sales
Porsche Restoration & Sales
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Re: Project MFI
I have now collected a drive motor, electronic speed controller, glass measuring tubes, Rpm meter, fuel pump and fuel pressure regulator. next step is to test motor and speed controller and also the laser rpm meter.
Tim Bennett
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
Re: Project MFI
Cant wait - these things have always been the work of Satan
Martin
Martin
59 356A
83 911SC 3.6
83 911SC 3.6
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Re: Project MFI
Things are starting to come together. I have a motor and speed controller wired up and running. I can measure the motor shaft speed with a electronic meter. I have the fuel pump, pressure regulator running and producing flow at a controllable pressure. I have the measuring vessels and the space to set it all up.
Any luck finding an old drive pulley Alan ?
Any luck finding an old drive pulley Alan ?
Tim Bennett
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
Re: Project MFI
Timimpmad2000 wrote:Things are starting to come together. I have a motor and speed controller wired up and running. I can measure the motor shaft speed with a electronic meter. I have the fuel pump, pressure regulator running and producing flow at a controllable pressure. I have the measuring vessels and the space to set it all up.
Any luck finding an old drive pulley Alan ?
Is it the cam pulley you want? I have an old one minus the outer flange (but I still have the flange which could be stuck back on). See other thread "what did you do today...."
Let me know.
Ian
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Re: Project MFI
Cam pulley, yes. I'm happy to "make do " for now
Tim Bennett
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
Re: Project MFI
It's yours if you want it. Can't remember your address, so PM it and I'll put it in a Jiffy bag.impmad2000 wrote:Cam pulley, yes. I'm happy to "make do " for now
Ian
Re: Project MFI
Looking forward to hearing how the testrig build goes Tim.
I too have the Burgess book, and have been working through some issues with my own pump. Have already had the regulator, space cam and flyweights apart, now looking to rebuild the rest. It's a very satisfying thing to work with, once you have the confidence to get stuck into it
I too have the Burgess book, and have been working through some issues with my own pump. Have already had the regulator, space cam and flyweights apart, now looking to rebuild the rest. It's a very satisfying thing to work with, once you have the confidence to get stuck into it
Gavin
'73 911E -> 2.7mfi
'94 968 Sport
'73 911E -> 2.7mfi
'94 968 Sport
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Re: Project MFI
Yes, Hmm, stalled a bit since summer. Time to pick it back up again. TBH I've been looking for a test fluid but can't find any, so it looks like I need to make a fume cabinet. Oh well ?... Onwards!
Tim Bennett
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
RHD Targa 2.2T EFI, Triumph ITB's, EDIS and Megasquirt.
"Old enough to know what's right and young enough not to choose it"
#1153
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Re: Project MFI
Hi Any progress Tim?
1971 Targa Sportomatic in Green 1972 2.4e sunroof coupe 1990 964 C2 Member no 82