VWDiesel.net The IDI, TDI, and mTDI source.

Engine Specific Info and Questions => mTDI Mechanical TDI Conversions => Topic started by: snakemaster on February 03, 2007, 04:46:04 am

Title: m pump
Post by: snakemaster on February 03, 2007, 04:46:04 am

put a  M pump on my tdi and runs good bit i only have the std 90hp.185 injectors the prob is if give it hard throtle the car goes down to 3 clinders then 2 and after 30 meters with light throtle it goes back on to 4 clinders, and then it goes good with stedy throtle, any though on what is causing this    :?  i have the gov mod on the pump to , it even done it with the fly by wire pump

Title: m pump
Post by: Slave2School on February 03, 2007, 08:58:35 am

Are the injectors all tightened in enough/clean at the base?  Mine was pretty slow when I had a slight leak on two cylinders.  Some soapy water at idle might show if there are any leaks around the injectors or the glow plugs.

Title: m pump
Post by: craiggroombridge on February 03, 2007, 10:22:29 pm

sounds like a supply restriction check your fuel volume

Craig

Title: m pump
Post by: Ziptar on February 04, 2007, 07:32:45 am

Might be because your avatar is so huge...   :P


Really though... sounds like air is getting sucked into the fuel lines before the IP somewhere or you have a blockage / clog.

If you left it sit for a while does it also take some cranking to get it going again? In otherwords has fuel drained back to the tank?

I had almost the exact same problem on my 03 TDI a couple years back....

Went crazy all day Mity-Vac'ing all the lines and checking injectors only to find a seam had failed on the fuel filter after 8000 miles. It was a small hair line leak at the seam but, was enough to be  problem.

Title: m pump
Post by: Tintin on February 04, 2007, 11:57:40 am

I wants to understand well, if i translated correctly, that gives me the effect of a timing too retard with a came plate not enough aggressive.

Here i see some TDI with AAZ pumps, and it is the same thing which occurs.

Title: m pump
Post by: snakemaster on February 04, 2007, 01:56:22 pm

Well i dont think it is puling in air to the diesel system , car got std turbo with no pipe going to the wast gate so runs max boost 22psi , and the car only goes down 3 cilenders in 1and 2 gear under hard throtel and the rest of the time ok , going to put .216 nozzels  and a biger turbo in the next few months 8)

Title: m pump
Post by: snakemaster on February 06, 2007, 04:14:38 pm

pic of my Mtdi worse for ware :roll: (http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/fyygpics1031.jpg)[/img] thats a perkins primi pump with a spacer plate i made up (http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/fyygpics1030.jpg)[/img]

Title: m pump
Post by: hillfolk'r on February 07, 2007, 12:50:58 am

try a lift pump back at the tank
 i mean a pump(at the tank) to supply fuel to the IP
my car used to"lay down" in the higher gears before i used a supply pump to bring fuel to the front of the car

Title: m pump
Post by: snakemaster on February 07, 2007, 02:03:37 am

lift pump yes  next thing on my shoping list :)

Title: m pump
Post by: lord_verminaard on February 07, 2007, 09:14:57 am

That's a Perkins pump?  Is it only available in Europe?  What model?  Thanks!

Brendan

Title: m pump
Post by: snakemaster on February 07, 2007, 02:31:00 pm

its a bosch pump but fitted to a perkins prina , that is fitted to a austin montego 2.0 tdi the engines are a bit soft and the cars are crap(http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/imagesmon.jpg)[/img] :lol:  :lol:  :lol:  8)

Title: m pump
Post by: 745 turbogreasel on February 07, 2007, 04:24:03 pm

When it is missing, is there smoke?  intake tube sucking shut?

Title: m pump
Post by: snakemaster on February 08, 2007, 10:22:18 am

No black smoke , but that intake and filter could be a prob i will change to a strate pipe and cone filtter  :)

Title: m pump
Post by: snakemaster on March 02, 2007, 03:34:11 pm

pic of my mtdi when the revs get to 3800 it goes down on 3 and a little smoke out of the exhaust intake ok ,i think i need a in line pump to ceep the injection pump fool (http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/102_4053.jpg)[/img]


(http://i12.photobucket.com/albums/a235/snakemaster1/102_4054.jpg)

(http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/102_4050.jpg)[/img]

(http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/102_4055.jpg)[/img]

Title: m pump
Post by: snakemaster on March 02, 2007, 04:32:46 pm

the pump on the left hand side is of a ford escort 1.6 diesel and it has the 20mm shaft and i will change the parts out of the tdi in to the escort pump and it fits in with no mods to pulleys or bodys(http://[img]http://i12.photobucket.com/albums/a235/snakemaster1/102_4104.jpg)[/img]