Author Topic: 1.6D to 1.6TD -- injection pump modifications?  (Read 3045 times)

January 03, 2014, 09:35:07 am

TimpanogosSlim

  • Veteran

  • Offline
  • ***

  • 590
  • Personal Text
    Pretty dumb for a smart guy
1.6D to 1.6TD -- injection pump modifications?
« on: January 03, 2014, 09:35:07 am »
So I'm going to turbo convert the 1.6D in my '84 jetta when i rebuild it.

Mind you, I still haven't laid hands on the vehicle itself. I still need to tow it home. I just bought it from someone reputable, someone who knows a lot of the same people i do, for not much money.

In the pictures and video, the IP is very, very shiny and the PO indicates that the guy he bought it from replaced the pump. Replaced a lot of things actually running away from the reality that the bottom end needs rebuilt.

I understand that the non-turbo IPs don't have the ability to increase fuel with boost. Am i correct in that?

What are the most basic changes i can make? Do i need a different pump or just some different parts on the existing pump?

Reply #1January 03, 2014, 02:49:07 pm

745 turbogreasel

  • Guest
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #1 on: January 03, 2014, 02:49:07 pm »

I understand that the non-turbo IPs don't have the ability to increase fuel with boost. Am i correct in that?
Technically, yes but neither do turbo pumps.  Turbo pumps  have the ability to limit fuel while off boost.

Reply #2January 03, 2014, 05:28:19 pm

TimpanogosSlim

  • Veteran

  • Offline
  • ***

  • 590
  • Personal Text
    Pretty dumb for a smart guy
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #2 on: January 03, 2014, 05:28:19 pm »

I understand that the non-turbo IPs don't have the ability to increase fuel with boost. Am i correct in that?
Technically, yes but neither do turbo pumps.  Turbo pumps  have the ability to limit fuel while off boost.

good distinction.

is this a modification that someone with above average attention to detail and manual dexterity can make at home with a few donor parts, or do i have to send the pump to someone?

fwiw i hear that zukgod is someone who does that kind of thing sometimes, and he's essentially local to me.

Reply #3January 03, 2014, 06:40:25 pm

theman53

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 7835
  • Personal Text
    Holmes County Ohio - North Central Ohio
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #3 on: January 03, 2014, 06:40:25 pm »
I think you could do it. IIRC you need to trim a pin that is a stop on the inside of the N/A pump.

Reply #4January 03, 2014, 08:36:26 pm

TimpanogosSlim

  • Veteran

  • Offline
  • ***

  • 590
  • Personal Text
    Pretty dumb for a smart guy
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #4 on: January 03, 2014, 08:36:26 pm »
I think you could do it. IIRC you need to trim a pin that is a stop on the inside of the N/A pump.

I'm gonna have to watch those videos, aren't i?


Reply #5January 04, 2014, 06:08:18 am

theman53

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 7835
  • Personal Text
    Holmes County Ohio - North Central Ohio
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #5 on: January 04, 2014, 06:08:18 am »
Yeah, you probably won't be able to go in blind and figure it out.

Reply #6January 04, 2014, 08:32:26 am

libbydiesel

  • Global Moderator
  • Veteran

  • Offline
  • ****

  • 3399
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #6 on: January 04, 2014, 08:32:26 am »
I've converted several.  You need the aneroid lid from a turbo pump.  The method I use is to pull the lid.  Next remove the governor shaft, gear and flyweight assembly.  Use a punch to drive the pin into the pump until it pops out.  Chuck the pin in a drill and use a dremel with cutoff wheel to cut it to the length that will let it install flat to the pump body.  Press the shortened pin back into place using a C-clamp to plug the hole.  Replace the governor parts and install the new lid.  Install, test and tune...

Reply #7January 04, 2014, 10:52:25 am

TimpanogosSlim

  • Veteran

  • Offline
  • ***

  • 590
  • Personal Text
    Pretty dumb for a smart guy
Re: 1.6D to 1.6TD -- injection pump modifications?
« Reply #7 on: January 04, 2014, 10:52:25 am »
I've converted several.  You need the aneroid lid from a turbo pump.  The method I use is to pull the lid.  Next remove the governor shaft, gear and flyweight assembly.  Use a punch to drive the pin into the pump until it pops out.  Chuck the pin in a drill and use a dremel with cutoff wheel to cut it to the length that will let it install flat to the pump body.  Press the shortened pin back into place using a C-clamp to plug the hole.  Replace the governor parts and install the new lid.  Install, test and tune...

Awesome. Thanks!