Author Topic: How a VE pump works  (Read 16547 times)

February 24, 2008, 09:57:06 am

jimfoo

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How a VE pump works
« on: February 24, 2008, 09:57:06 am »
This site covers the entire workings of a VE pump very well. Some pictures are missing, but all the important ones are there.


Jim
1966 Land-Rover 88" with 1.9 AAZ which has been transformed to an M-TDI
GT1749V, IC , and 2.5" exhaust.
Driven daily

Reply #1February 24, 2008, 10:06:08 am

rallydiesel

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How a VE pump works
« Reply #1 on: February 24, 2008, 10:06:08 am »
Good find!
2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

"ONCE YOU GO CLACK, YOU NEVER GO BACK"

Reply #2February 28, 2008, 07:39:40 pm

jimfoo

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How a VE pump works
« Reply #2 on: February 28, 2008, 07:39:40 pm »
An addition not explained on that page is the unit in place of the timing advance cover on some pumps that has one steel line and one terminal. It is called the ALFB, or the "load sensitive start of delivery with deactivation feature". It reacts to declining loads(from full load to part throttle) at constant control lever positions by retarding the timing. It advances the timing with rising loads. It is supposed to provide "smoother engine operation" and cleaner emissions at part throttle and idle. The terminal is to deactivate it to reduce HC when the engine is cold(<60*C) when energized.
Now no one has to wonder any more. :wink:  Can you tell I got a Bosch pump book today? :lol:  :lol:
Jim
1966 Land-Rover 88" with 1.9 AAZ which has been transformed to an M-TDI
GT1749V, IC , and 2.5" exhaust.
Driven daily

Reply #3March 03, 2008, 02:47:31 pm

snakemaster

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How a VE pump works
« Reply #3 on: March 03, 2008, 02:47:31 pm »
the link would be nice sounds good
Glenmorangie  single highland malt

Reply #4March 03, 2008, 03:20:07 pm

blkboostedtruck

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How a VE pump works
« Reply #4 on: March 03, 2008, 03:20:07 pm »
Quote from: "jimfoo"
An addition not explained on that page is the unit in place of the timing advance cover on some pumps that has one steel line and one terminal. It is called the ALFB, or the "load sensitive start of delivery with deactivation feature". It reacts to declining loads(from full load to part throttle) at constant control lever positions by retarding the timing. It advances the timing with rising loads. It is supposed to provide "smoother engine operation" and cleaner emissions at part throttle and idle. The terminal is to deactivate it to reduce HC when the engine is cold(<60*C) when energized.
Now no one has to wonder any more. :wink:  Can you tell I got a Bosch pump book today? :lol:  :lol:


jimfoo,
witch book did you get?
i'd like to get one my self!
is it the one from your link above?
thanks Duane
injector rebuilds call  414-840-1395 for faster service not on line much!
'66 variant 1500S
'81 2dr n/a 1.6 diesel rabbit 8"lift 260K R.I.P.
'81 caddy gas 1.8 turbo/stroker W/N.O.S.
'81 caddy 1.9 turbo diesel
'82 caddy gas 1.8 G60
 3 jettas '82' '04 '14TDI
+1 rabbit,03 HD sc.eag. duece,46,&5

Reply #5March 03, 2008, 03:50:56 pm

jimfoo

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How a VE pump works
« Reply #5 on: March 03, 2008, 03:50:56 pm »
This is the one I got. There are other sellers as well. It's like the book Tintin provided a link to in the French section, but obviously it's in English. It covers mechanical and electronic pumps.
Jim
1966 Land-Rover 88" with 1.9 AAZ which has been transformed to an M-TDI
GT1749V, IC , and 2.5" exhaust.
Driven daily

Reply #6March 03, 2008, 04:11:55 pm

blkboostedtruck

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How a VE pump works
« Reply #6 on: March 03, 2008, 04:11:55 pm »
thanks my 25 year old VW&porsche magizines were getting old!i need new reading material for @#$%^ well you know!
thanks Duane
injector rebuilds call  414-840-1395 for faster service not on line much!
'66 variant 1500S
'81 2dr n/a 1.6 diesel rabbit 8"lift 260K R.I.P.
'81 caddy gas 1.8 turbo/stroker W/N.O.S.
'81 caddy 1.9 turbo diesel
'82 caddy gas 1.8 G60
 3 jettas '82' '04 '14TDI
+1 rabbit,03 HD sc.eag. duece,46,&5

Reply #7July 10, 2008, 03:02:49 pm

dieselwagen

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Re: How a VE pump works
« Reply #7 on: July 10, 2008, 03:02:49 pm »
Quote from: "jimfoo"
This site covers the entire workings of a VE pump very well. Some pictures are missing, but all the important ones are there.



this type of information is exactly what i was looking for, i posted under GENERAL in this forum without checking out FAQ/ Tech Tips first

diesel newb like myself appreciates this very much, i can't overemphasize the importance of having a solid understanding of the BASICS first. even though some of the pics are missing, this is plenty enough to get me started.

muchos gracias senyor jimfoo.
1986 golf 1.6

Reply #8September 04, 2008, 07:56:58 pm

bkschott

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How a VE pump works
« Reply #8 on: September 04, 2008, 07:56:58 pm »
I can't get the site to respond, these posts aren't very old, is anyone else having trouble?
Happiness is like wetting your pants, everyone can see it, but your the only one that can feel the warmth.

Reply #9July 11, 2009, 09:58:17 pm

lovinthedeez

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Re: How a VE pump works
« Reply #9 on: July 11, 2009, 09:58:17 pm »
haha, I was just reading thru the FAQ and came across this.  He was my teacher through a lot of my classes at Canton tech in upstate NY.  super space cadet, but boy does he know his stuff.  He left the college after my senior year to take some high up job for Lexus to train the guys who go out and train techs/stuff like that.  I still have his book that all this came out of.  was kind of intimidating taking a class from the guy who wrote the book you're using.  Its awesome; 13 years later, and I still enjoy browsing through it. 
here's to you ed.......wherever you are....
location:  ashland, oregon US

Reply #10February 02, 2010, 08:45:41 pm

CathodeRayTube

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Re: How a VE pump works
« Reply #10 on: February 02, 2010, 08:45:41 pm »
link dont work...

Reply #11February 02, 2010, 11:52:03 pm

Vincent Waldon

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Re: How a VE pump works
« Reply #11 on: February 02, 2010, 11:52:03 pm »
Hmmm... workin' fine for me?

http://mebonty.monobasin.net/vepump.html

Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta

Reply #12March 13, 2010, 10:31:58 pm

JT Turbo

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Re: How a VE pump works
« Reply #12 on: March 13, 2010, 10:31:58 pm »
hmm, not working for me  :(
John

'91 Jetta TD Wolfsburg
'72 Datsun 510 wagon
'95 Isuzu Rodeo 4WD

Reply #13November 13, 2010, 03:36:24 pm

vako

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Re: How a VE pump works
« Reply #13 on: November 13, 2010, 03:36:24 pm »
link not working for me either  ???

Reply #14November 13, 2010, 05:46:46 pm

rabbitman

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Re: How a VE pump works
« Reply #14 on: November 13, 2010, 05:46:46 pm »
Worked for me, most of the pics are dead though. :-\
'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