engine and drivetrain 1974 TII Electric Fuel Pump Options

[buckweber]

Original fuel pump is shot.  Can't afford a new TII pump.   Read that a 5 series and/or 3 Series fuel pump will work.  Need to visit junk yard to find a replacement.   Is there specific models, years that I need to look for.

Also....  The original reserve canister is no longer with the car.  Is that needed or can I go with just a pump?

 

Any help would be most appreciated.

[adawil2002]

Don't buy a used fuel pump. Buy a new E28 pump. Plenty of info on the install here on the FAQ, probably an article all about it as it's commonly done.

[JerryC]

Yes, get a new pump. You already have a used pump; chances aren't too bad that a junkyard pump will be as good as your's.

 

[OriginalOwner]

http://www.my2002tii.com/tii-fuel-pump_how-to.htm

 

Cheers,

 

Carl

 

[buckweber]

Do I need the resevoir

 

[JohnH]

3 hours ago, buckweber said:

Do I need the resevoir

 

 

No, but you do need an input fuel filter as per an E28 etc. 

[PaulTWinterton]

Also, if you are following the instructions at my2002tii you don't need the "direct current" thingy.  Not sure why that is recommended. Anyone?

Edited October 12, 2016 by PaulTWinterton

[OriginalOwner]

hmmmmm,  "direct current thingy" ??   That's just the connector to the old-style fuel pump which obviously won't fit the new-style fuel pump.  Kreeger didn't want to delete it (I can appreciate the purist in that), so he just left it in place and bypassed it.

 

Cheers,

 

Carl

 

[PaulTWinterton]

1 hour ago, OriginalOwner said:

"direct current thingy"

 

Sorry, poor wording.  I've attached the picture.  I don't know why this dc voltage thing is involved.  Unless it's 74-76 modification.

Thanks to Kreeger for their picture and fantastic site.

 

Wait... is it just the connector?  Edit: Karl, you just said that.       It looks like an electrical component of some sort.  It's what I inserted my spade connectors into.  IMHO, it's much easier to re&re without crimping the original lines.

 

I covered the whole connection with shrink-tubing.

Edited October 12, 2016 by PaulTWinterton

[OriginalOwner]

(sigh)   yep, that is just the connector ..... no big thang, DC or otherwise.

 

Paul, yep, everything else you said is a good method !!

 

Cheers,

 

Carl

 

[pilotnbr1]

Just out of curiousity, does the e28 pump have a built in check valve? 

[jimk]

1 hour ago, pilotnbr1 said:

does the e28 pump have a built in check valve

All the modern pumps have check valves.  They usually don't hold pressure though, i.e. pressure leaks down pretty fast.  The main purpose of the check valve is so the pump (a positive displacement device) can work.  Without the check valve, the fluid pumped would flow back between pump discharges and the pressure would pulsate like crazy with little or no flow.

[pilotnbr1]

3 hours ago, jimk said:

All the modern pumps have check valves.  They usually don't hold pressure though, i.e. pressure leaks down pretty fast.  The main purpose of the check valve is so the pump (a positive displacement device) can work.  Without the check valve, the fluid pumped would flow back between pump discharges and the pressure would pulsate like crazy with little or no flow.

Thanks! 

[chargin]

I used the e28 pump retro fitted to the Tii bracket, then added some jumper wires to mate to the Tii harness

 

 

[chargin]

On 10/17/2016 at 11:28 AM, chargin said:

I used the e28 pump retro fitted to the Tii bracket, then added some jumper wires to mate to the Tii harness

 

UPDATE:

I had to go up in gauge on the wires, the original Tii harness over heated and stranded me roadside 

 

Also added a Impact/Roll-Over switch for some additional safety