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#135
by
8v-of-fury
on 28 Mar, 2012 18:12
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peak torque for my engine happens at 2400 rpm. Will this mod change it?
Well with this mod you are not really changing the engines characteristics. So the engine should behave very similarly, just have more power at all rpm's, and especially above 2500rpm. With the eco pump you will never be able to physically move as much fuel as a normal 1.6 NA or 1.6TD pump, because you have the 8mm fuel head and they have the 9mm. But this governor mod will help you move significantly more than you were moving before
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#136
by
92EcoDiesel Jetta
on 02 Apr, 2012 21:47
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Did the governor mod with a stainless steel 2.5 mm thick nut on the main spring as recommended here (thanks for the write up 8V).
Lot more power but also a lot more smoke if I gun the pedal. Love the extra power but it has an erratic idle. Sometimes it would be real low- to the point of stalling if I don't feather the throttle. Other times it would idle between 1500 to 1800 rpm. I tried adjusting the idle and fuel screw which didn't help. What did I screw up in the mod?
Here are some pics:
I made a spring compressor to make the job easier and no flying parts.
This pic shows 2 nuts. I took one of them off before installing.
I also had this emergency shut off ready in case I get a runaway. I tested it and it works! Shuts engine off in a split second.
Before pulling the cover off, I sucked some fuel out via the Out bolt so as not to spill any diesel.
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#137
by
8v-of-fury
on 02 Apr, 2012 21:55
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So for clarity, I see that you have used two nuts on the main spring of the governor as per this write-up.
Don't suppose you grabbed a picture of it back in the throttle lever cage/piece??
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#138
by
92EcoDiesel Jetta
on 03 Apr, 2012 07:30
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So for clarity, I see that you have used two nuts on the main spring of the governor as per this write-up.
Don't suppose you grabbed a picture of it back in the throttle lever cage/piece??
I used 2 nuts but took one out before installing it in the pump because it was too thick and made it difficult to insert the C-clip.
The one on the left with one nut is the modded governor for the EcoDiesel. The one on the right is from a Peugeot parts pump that I practiced on before working on the Eco.
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#139
by
92EcoDiesel Jetta
on 04 Apr, 2012 20:45
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Problem fixed!
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#140
by
8v-of-fury
on 04 Apr, 2012 20:47
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Problem fixed!
Please share your fix so that others coming to the thread may be able to solve their identical problem
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#141
by
745 turbogreasel
on 05 Apr, 2012 00:05
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I had to reseal so I shimmed mine 1 old DV washer. It works, and the D24T will now rev I don't know how high...
Is still pulling at 5500 though.
I'm an idiot, and changed more than one thing at a time so....who knows... At least it is faster than before, and doesn't leave a foot long pool of fuel when I park.
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#142
by
ToddA1
on 05 Apr, 2012 00:14
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Is that a copper sealing washer that you used? I'd be leery of the spring wearing into it and having metal shavings in the pump.
-Todd
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#143
by
745 turbogreasel
on 05 Apr, 2012 16:13
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I'll be looking at it again soon enough, and will give it a good look over.
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#144
by
92EcoDiesel Jetta
on 05 Apr, 2012 20:40
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Problem fixed!
Please share your fix so that others coming to the thread may be able to solve their identical problem
I didn't want to provide details until I drove it a bit to make sure it is really fixed. It was due to binding in the high speed idle lever of the cold start advance/ high speed idle system. When I took the pump cover off, I took the high speed idle lever off when I should have left it on and unhook the speing loaded rod instead. During reassembly, the o-ring on the high speed idle lever partially unseated and got pinched, causing it to bind. It also leaked a little fuel. After taking the cover off and reseated the o-ring the idle is normal.
The governor mod made my Jetta feel like a different car! It has substantially more power. If I mash the pedal I get lots of black smoke (none before) and the car just takes off with a lot more pep. I've been driving it with slow and steady acceleration in order to avoid smoke, which still gives much better power and acceleration than before. It is a completely different driving experience, more relaxed- less down shifting. On the hills that I drive often, I used to have to anticipate and speed up to 80 mph before approaching in order to make the top and maintain 60 mph without having to down shift. Now I stay in 5th w/o having to speed up and rely on momentum to make the top of the hill and maintain 60. I think I am getting better fuel economy also by being able to stay in 5th more often. Love the mod!
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#145
by
92EcoDiesel Jetta
on 30 Apr, 2012 10:13
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The governor mod been doing ok since I fixed the high idle issue. Although I do notice some changes such as I seem to have less smoke now than immediately after the mod. I also sometimes get a low idle after dropping from a high RPM.
I am going to try a solid shim to see if it corrects the low idle problem.
I want to make the solid shim out of Delrin. From what I can see, the shim is always under compression and there should not be any movement between the Delrin and seats in operation so I should not have any wear problems. The force on the Delrin is not that great, just the intermediate spring so I think it should be fine. Any opinions?
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#146
by
8v-of-fury
on 30 Apr, 2012 20:14
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There is two larger springs in the head of the pump that the governor has direct force on. The governor pulls on that lever that it slides into, and then that lever has two tough springs at the bottom of it which get compressed when you push more pedal. So there is actually quite the force that will be on whatever you use as your shim.
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#147
by
92EcoDiesel Jetta
on 30 Apr, 2012 23:06
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There is two larger springs in the head of the pump that the governor has direct force on. The governor pulls on that lever that it slides into, and then that lever has two tough springs at the bottom of it which get compressed when you push more pedal. So there is actually quite the force that will be on whatever you use as your shim.
I don't know the internals of the pump very well as far as what pushes on what. I am just a nooby student of VE pumps.
Here's a link to Delrin specs
http://www.plasticsintl.com/datasheets/Delrin_150.pdfcompressive strength is 5200 psi
Do you think the force on the shim is greater than that?
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#148
by
R.O.R-2.0
on 01 May, 2012 13:32
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There is two larger springs in the head of the pump that the governor has direct force on. The governor pulls on that lever that it slides into, and then that lever has two tough springs at the bottom of it which get compressed when you push more pedal. So there is actually quite the force that will be on whatever you use as your shim.
I don't know the internals of the pump very well as far as what pushes on what. I am just a nooby student of VE pumps.
Here's a link to Delrin specs
http://www.plasticsintl.com/datasheets/Delrin_150.pdf
compressive strength is 5200 psi
Do you think the force on the shim is greater than that?
i would still use metal to shim the governor..
plastic inside an injection pump kinda scares me.. look at the old DB2 flex ring governors.. plastic.. that was the reason 99% of the 5.7D & 6.2D engines died and were never fixed..
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#149
by
theman53
on 01 May, 2012 17:09
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A copper or brass washer wouldn't even make a roller skip if pieces of it were thrown in its way.