Author Topic: how to remove limit pin going D to TD pump?  (Read 9303 times)

Reply #15March 13, 2011, 12:41:04 pm

R.O.R-2.0

  • Veteran

  • Offline
  • ***

  • 7335
  • Personal Text
    Pacific Northwest - Oregon - USA
Re: how to remove limit pin going D to TD pump?
« Reply #15 on: March 13, 2011, 12:41:04 pm »
unless you need to pour copious amounts of coals out your tail pipe, it really doesnt need to be modified..

most users find thier pump throws down quite fine for every day activities..

ive had 2 different pumps, one had the pin, one did not, both had the same LDA on them.

and i found that i got more power/smoke out of the one that STILL HAD THE PIN..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #16March 13, 2011, 03:20:50 pm

Digital K

  • Junior

  • Offline
  • **

  • 58
Re: how to remove limit pin going D to TD pump?
« Reply #16 on: March 13, 2011, 03:20:50 pm »
thanks for the input on that.

Reply #17March 13, 2011, 03:25:46 pm

carrizog60

  • Veteran

  • Offline
  • ***

  • 978
Re: how to remove limit pin going D to TD pump?
« Reply #17 on: March 13, 2011, 03:25:46 pm »
many things can affect that...

and it doesent makes difference if you dont grind the lda pin
vw golf gti G60--vw passat 1.9td gt2052v
yamaha vmax 1200- yamaha tdm 850
Portugal

Reply #18March 13, 2011, 03:32:51 pm

regcheeseman

  • Veteran

  • Offline
  • ***

  • 714
Re: how to remove limit pin going D to TD pump?
« Reply #18 on: March 13, 2011, 03:32:51 pm »
Quote
unless you need to pour copious amounts of coals out your tail pipe, it really doesnt need to be modified..

Oh yes it does, I get some AAZ pumps in that the stop is so severe that you can grind the LDA all you like because it doesn't even come into play until you get rid of the stop.

I took some pictures of the last one I did, it was a 1.6 TD - they aren't affected too much by the fitment of the pin.

Here it is in Crezz' 1.6 pump, I've removed the governor as that's normally the only way to gain access to shift it.

You can see the pin sticking into the pump.
Removing the governor can be tricky, I mark the bolt and lock nut with a centre punch and count the turns to remove it (normally 16) - dont pull it out completely, just enough to lift the gov out , catch hold of the gov weights as they WILL fall into the pump.

It's pushed into place and the hole peened over to stop it coming back out so you have to remove some material, I do this with a dremel before opening pump


The pin is a tight fit and needs tapping out with a punch, I just leave it in place and dob on some JB to stop any leaks


You could trim it off, for my pump I removed it and I fitted a bolt in with sealant.

Reply #19March 13, 2011, 05:51:31 pm

R.O.R-2.0

  • Veteran

  • Offline
  • ***

  • 7335
  • Personal Text
    Pacific Northwest - Oregon - USA
Re: how to remove limit pin going D to TD pump?
« Reply #19 on: March 13, 2011, 05:51:31 pm »
Quote
unless you need to pour copious amounts of coals out your tail pipe, it really doesnt need to be modified..

Oh yes it does, I get some AAZ pumps in that the stop is so severe that you can grind the LDA all you like because it doesn't even come into play until you get rid of the stop.

I took some pictures of the last one I did, it was a 1.6 TD - they aren't affected too much by the fitment of the pin.

Here it is in Crezz' 1.6 pump, I've removed the governor as that's normally the only way to gain access to shift it.

You can see the pin sticking into the pump.
Removing the governor can be tricky, I mark the bolt and lock nut with a centre punch and count the turns to remove it (normally 16) - dont pull it out completely, just enough to lift the gov out , catch hold of the gov weights as they WILL fall into the pump.

It's pushed into place and the hole peened over to stop it coming back out so you have to remove some material, I do this with a dremel before opening pump


The pin is a tight fit and needs tapping out with a punch, I just leave it in place and dob on some JB to stop any leaks


You could trim it off, for my pump I removed it and I fitted a bolt in with sealant.

this is EXACTLY how i modified my pumps.. glad im not the only one crazy enough to do it..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #20March 13, 2011, 10:21:47 pm

fatmobile

  • Veteran

  • Offline
  • ***

  • 2922
    • http://www.geocities.com/vwfatmobile/
Re: how to remove limit pin going D to TD pump?
« Reply #20 on: March 13, 2011, 10:21:47 pm »
unless you need to pour copious amounts of coals out your tail pipe, it really doesnt need to be modified..

most users find thier pump throws down quite fine for every day activities..

ive had 2 different pumps, one had the pin, one did not, both had the same LDA on them.

and i found that i got more power/smoke out of the one that STILL HAD THE PIN..

You had a pump that was originally TD and it had the long pin just pictured,
 that gets in the way of the LDA arm?

Both of these LDAs had the arm on the front? or the cold start lever side?

The one in my pic has the arm on the cold start half of the pump.
I've seen it on the other side,.. but it had no pin either, it would just get in the way.
Tornado red, '91 Golf 4 door, with M-TDI 12mm pump, south bend clutch, VNT-15 turbo, 02A trany
MK4s: 2000 TDI jetta, 2003 TDI wagon, 2000 golf 2.0 gasser.
'84 Rabbit with 1.7TD KY block pistons bored to 80mm, VNT-15
'84 GTI with stock 1.6TD starion intercooler.

Reply #21March 13, 2011, 10:42:22 pm

R.O.R-2.0

  • Veteran

  • Offline
  • ***

  • 7335
  • Personal Text
    Pacific Northwest - Oregon - USA
Re: how to remove limit pin going D to TD pump?
« Reply #21 on: March 13, 2011, 10:42:22 pm »
unless you need to pour copious amounts of coals out your tail pipe, it really doesnt need to be modified..

most users find thier pump throws down quite fine for every day activities..

ive had 2 different pumps, one had the pin, one did not, both had the same LDA on them.

and i found that i got more power/smoke out of the one that STILL HAD THE PIN..

You had a pump that was originally TD and it had the long pin just pictured,
 that gets in the way of the LDA arm?

Both of these LDAs had the arm on the front? or the cold start lever side?

The one in my pic has the arm on the cold start half of the pump.
I've seen it on the other side,.. but it had no pin either, it would just get in the way.

i worded that wrong..

my true TD pump, had no pin in it, and an LDA on top..

the other pump i was talking about tho, started out life as a n/a pump, thats why it had the pin in the side. (that i removed)

the reason they had the same LDA on top, is because i took it off one pump, and put it on the other..

pretty sure the arm on my LDA is on the pin side, not the cold start side. actually im about positive it is. cause it was opposite the fuel screw..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #22March 13, 2011, 11:58:01 pm

Digital K

  • Junior

  • Offline
  • **

  • 58
Re: how to remove limit pin going D to TD pump?
« Reply #22 on: March 13, 2011, 11:58:01 pm »
I am admittedly really confused.

Reply #23March 14, 2011, 05:00:02 am

regcheeseman

  • Veteran

  • Offline
  • ***

  • 714
Re: how to remove limit pin going D to TD pump?
« Reply #23 on: March 14, 2011, 05:00:02 am »
Quote
You had a pump that was originally TD and it had the long pin just pictured,
 that gets in the way of the LDA arm?

No - it stops the throttle plate before it even reaches the LDA arm - that's how any grind on the LDA is pointless

Quote
Both of these LDAs had the arm on the front? or the cold start lever side?

The one in my pic has the arm on the cold start half of the pump.
I've seen it on the other side,.. but it had no pin either, it would just get in the way.

LDA arm on the back of the pump, cold start lever side.

The pin is obvious when fitted, the casting is there on all pumps, some are drilled and fitted with a pin.

Later 1.6 TDs have a pin, never seen a GTD pump with a pin, later semi-electric AAZ pumps have a pin.




Quote
pretty sure the arm on my LDA is on the pin side, not the cold start side. actually im about positive it is. cause it was opposite the fuel screw..

I've never seen one like that but then UK pumps are massively different to yours.

The picture I posted originally was a genuine 1.6 TD eco pump, the pictures in this post are GTD
« Last Edit: March 14, 2011, 07:32:11 am by regcheeseman »

Reply #24March 14, 2011, 09:34:07 am

R.O.R-2.0

  • Veteran

  • Offline
  • ***

  • 7335
  • Personal Text
    Pacific Northwest - Oregon - USA
Re: how to remove limit pin going D to TD pump?
« Reply #24 on: March 14, 2011, 09:34:07 am »
are we talking about the fast idle lever? my pump has none.. and i guess the pump top looks about like the one that was posted up, just without the fast idle..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #25March 14, 2011, 08:21:41 pm

fatmobile

  • Veteran

  • Offline
  • ***

  • 2922
    • http://www.geocities.com/vwfatmobile/
Re: how to remove limit pin going D to TD pump?
« Reply #25 on: March 14, 2011, 08:21:41 pm »
Quote
Later 1.6 TDs have a pin, never seen a GTD pump with a pin, later semi-electric AAZ pumps have a pin.
Sooo later 1.6TDs have the pin,.. so the LDA arm must be one the other side.
The more i look at it the more it seems this LDA/lid would probably swap right on to an NA pump, without having to deal with the pin.
 
I messed with one of those pumps recently.
 I always thought it would be good to have a TD pump with the cold start lever that bumps the RPMs too,..
 but it's a little more complicated, really more complicated than it's worth.
 I got it back together and it works  :)

I am admittedly really confused.
Kris, the reason for all this is to put an LDA (turbo lid) on an NA pump.
 It won't give you any more fuel,.. a 9mm pump will push what a 9mm pump can.
 What it does is keep the fuel down when off boost,.. so you don't smoke so much off boost.
 I'm not familiar with the 1.9 stuff and am not sure what your injection pump looks like,.. does it already have an LDA?
 
Seems like it's the pin in the LDA that  needs changed on the 1.9 pump.
 Not the limiting pin in the pump.
Tornado red, '91 Golf 4 door, with M-TDI 12mm pump, south bend clutch, VNT-15 turbo, 02A trany
MK4s: 2000 TDI jetta, 2003 TDI wagon, 2000 golf 2.0 gasser.
'84 Rabbit with 1.7TD KY block pistons bored to 80mm, VNT-15
'84 GTI with stock 1.6TD starion intercooler.