Author Topic: how to remove limit pin going D to TD pump?  (Read 7657 times)

March 10, 2011, 03:07:37 pm

carrizog60

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how to remove limit pin going D to TD pump?
« on: March 10, 2011, 03:07:37 pm »
hello

how do you remove the side pin that limits the trow of the lda pin?
i was thinking to dremel the sh*it out of her but i am affraid of debris coming inside the pump...

other thing:
this pump is for selling,any way to put it in a way that it could start and then the guy adjust at his taste?
i kinda miss the aligment marks on the T. shaft... :(


vw golf gti G60--vw passat 1.9td gt2052v
yamaha vmax 1200- yamaha tdm 850
Portugal

Reply #1March 10, 2011, 04:16:26 pm

R.O.R-2.0

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Re: how to remove limit pin going D to TD pump?
« Reply #1 on: March 10, 2011, 04:16:26 pm »
on my pump, i pushed the pin in towards the governor shaft, drilled the indentations holding the pin from coming out, then i pushed the pin back out past where it was originally sitting.. the pin is sticking out the side of my pump, but i could care less.. i could have tooken the dremel and sliced off the protruding pin..

or you could push the pin out, and drill and tap the hole with a pipe plug or something..
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 #2March 10, 2011, 10:12:35 pm

rabbitman

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Re: how to remove limit pin going D to TD pump?
« Reply #2 on: March 10, 2011, 10:12:35 pm »
My pump was gutted so I just ground it off with a cutting wheel.

I had the top off the other day and it looked like removing the stop allowed the lever to travel an extra 1/8" MAX, probably less, the lever hits the shaft with the flyweights on it and that's the end. Screwing the shaft out would allow considerably more fueling.........
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #3March 10, 2011, 10:36:56 pm

Digital K

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Re: how to remove limit pin going D to TD pump?
« Reply #3 on: March 10, 2011, 10:36:56 pm »
can someone throw up a pic of this actually before and after for us that have never done it?

Reply #4March 11, 2011, 01:28:14 am

fatmobile

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Re: how to remove limit pin going D to TD pump?
« Reply #4 on: March 11, 2011, 01:28:14 am »
I just rebushed and sealed a TD pump from an '85 Jetta TD.

 It still had the pin.
 The lever coming from the top didn't come down on front (opposite of cold start side) of the pump.
 It didn't replace the pin.
The lever rode against an area near where the governor spring attached.
I didn't compare it to an NA pump to see if that part was there for it to ride against but it could be.

Point is, there might be some LDAs that will work on an NA pump.
 There certainly are tops that don't require removing the pin, because it will do you no good.

The pump is closed up and on the car now; so no pics.
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block

Reply #5March 11, 2011, 08:00:03 am

carrizog60

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Re: how to remove limit pin going D to TD pump?
« Reply #5 on: March 11, 2011, 08:00:03 am »
the lda pin will work as it is,but removing the side pin on the case will alow for more movement of the lda pin.
that way i can even ground more the lda knowing that the pin will stick out more.

thats another question about the weights shaft limiting the throw of that lever.
messing with that shaft will mess with what?
vw golf gti G60--vw passat 1.9td gt2052v
yamaha vmax 1200- yamaha tdm 850
Portugal

Reply #6March 11, 2011, 11:27:55 am

R.O.R-2.0

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Re: how to remove limit pin going D to TD pump?
« Reply #6 on: March 11, 2011, 11:27:55 am »
I just rebushed and sealed a TD pump from an '85 Jetta TD.

 It still had the pin.
 The lever coming from the top didn't come down on front (opposite of cold start side) of the pump.
 It didn't replace the pin.
The lever rode against an area near where the governor spring attached.
I didn't compare it to an NA pump to see if that part was there for it to ride against but it could be.

Point is, there might be some LDAs that will work on an NA pump.
 There certainly are tops that don't require removing the pin, because it will do you no good.

The pump is closed up and on the car now; so no pics.

all the TD pumps ive seen didnt have a pin in them..
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 #7March 11, 2011, 12:34:39 pm

R.O.R-2.0

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Re: how to remove limit pin going D to TD pump?
« Reply #7 on: March 11, 2011, 12:34:39 pm »
on my pump, i pushed the pin in towards the governor shaft, drilled the indentations holding the pin from coming out, then i pushed the pin back out past where it was originally sitting.. the pin is sticking out the side of my pump, but i could care less.. i could have tooken the dremel and sliced off the protruding pin..

or you could push the pin out, and drill and tap the hole with a pipe plug or something..

With the peens removed, you run the risk of fuel pressure pushing the pin out.  It might not happen, but would stink if it did.  If I were going to take that approach, I'd peen the pin itself (use wire nippers or similar to squish a groove) near the inner end and then squish it out to the peened area.

thats a really good idea Andrew..
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 #8March 11, 2011, 09:57:22 pm

rabbitman

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Re: how to remove limit pin going D to TD pump?
« Reply #8 on: March 11, 2011, 09:57:22 pm »
I ground the peens off and tried pushing the pin out but it was too tight so just cut it off.

Thinking about the gov shaft, adjusting it out might not change anything since the sleeve probably slides all the way towards the weights and hits a stop at that end rather than the end of the shaft bottoming in the sleeve.
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN

Reply #9March 12, 2011, 02:38:51 am

Digital K

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Re: how to remove limit pin going D to TD pump?
« Reply #9 on: March 12, 2011, 02:38:51 am »
some of us have never had an injection pump apart....  :'(

Reply #10March 12, 2011, 03:27:45 am

fatmobile

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Re: how to remove limit pin going D to TD pump?
« Reply #10 on: March 12, 2011, 03:27:45 am »
There are lots of pics on here of injection pump insides.

I took the top off because it wasn't pulling fuel right.

I did take a pic but won't be able to post it tonight.

It looks like the LDA could be set right on top of an NA pump.

External difference on this pump was accelerator lever springs that were old school.
 Just like the old Rabbits.
The springs had straight ends,.. no hooks.
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block

Reply #11March 12, 2011, 07:45:34 am

carrizog60

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Re: how to remove limit pin going D to TD pump?
« Reply #11 on: March 12, 2011, 07:45:34 am »
I ground the peens off and tried pushing the pin out but it was too tight so just cut it off.

Thinking about the gov shaft, adjusting it out might not change anything since the sleeve probably slides all the way towards the weights and hits a stop at that end rather than the end of the shaft bottoming in the sleeve.

have you tryed to see that?
if it makes no difference why does it has some adjustment at the pulley side?

i have now a spare TD pump (damaged,i used the lda top) to mess around and want to check all the possible as i can understand :)
vw golf gti G60--vw passat 1.9td gt2052v
yamaha vmax 1200- yamaha tdm 850
Portugal

Reply #12March 12, 2011, 11:33:30 pm

fatmobile

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Re: how to remove limit pin going D to TD pump?
« Reply #12 on: March 12, 2011, 11:33:30 pm »
Here's a pic of this TD pump insides:

« Last Edit: March 12, 2011, 11:38:03 pm by fatmobile »
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block

Reply #13March 13, 2011, 12:29:26 am

Digital K

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Re: how to remove limit pin going D to TD pump?
« Reply #13 on: March 13, 2011, 12:29:26 am »
Here's a pic of this TD pump insides:



cool, so whats this pin I need to modify on my AAZ?

Reply #14March 13, 2011, 04:44:21 am

fatmobile

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Re: how to remove limit pin going D to TD pump?
« Reply #14 on: March 13, 2011, 04:44:21 am »
See the pin sticking out of the side of the pump? by the cylinder thingy?

There is a spot right next to it where another pin would be machined into a NA pump.
 It's used as a stop for a lever.
 With this lid you might be able to leave the pin in place,..
 damn, I should have tried setting this lid on an NA pump body while I had it off.

 The TD pump top "LDA" has an arm that reaches down and replaces this pin/stud,.. a moveable stop.
 You can see it in the pic.
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block