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how do i do a leak off test


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#1 animal1978

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Posted 03 November 2011 - 10:20 PM

hi does anyone know how to do a leak off test? want to see tomorrow if this is the problem with my mondeo.
f fix
o or
r repair
d daily
02 plate tdci 130 in green.

#2 PURPLE_2L_LX

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Posted 03 November 2011 - 11:33 PM

Plenty of posts and pictures in this section. Some good pictures and instructions..


The basics....

Need to remove the leak off pipes and fit a pipe to each injector into a container. Run the engine at idle for 5 minutes check the levels
then run the engine at 2000 and 3000 rpm for a short while.

All 4 at the same time to compare levels.

2004 TDCi 130 LX Estate. (6)


MK3 FUSE INFO CLICK HERE ......... FORD WIKI CLICK HERE ........... FORD ETIS CLICK HERE


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F-Super, Bluetooth OBDII (ELM) and a MS509 scanners (test subjects required).


#3 peter scott

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Posted 04 November 2011 - 03:25 PM

1. Get the engine up to normal running temperature then switch off.
2. Remove the leak back tubes from the injectors.
3. Fit the tubes from the bottles to the injectors.
4. Start the engine and let it idle for 2 minutes.
5. Give it three short bursts of acceleration up to ~3000 rpm for 30 secs.
6. Switch off the engine.
7. Check the levels in the bottles. More than 25ml in any bottle is a fail.

          2 min      ___     ___     ___
Start ______________|   |___|   |___|   |_____Stop

          Idle           Acceleration

Bottles and tubing (Total cost £10.89)
http://www.ebay.co.u...-All-Categories
http://cgi.ebay.co.u...id=573983975014

You need to chop the top 1/4" off the bottles and you should make a pin hole in the lid portion just to ensure no back pressure.

Attached Thumbnails

  • Leak Off Bottles (Large).jpg

F-Super Information ..................TDCi Injector Information

TDCi Injector Cleaning................Injector Leak-Off Test

Ford ETIS........                  ..  .........Peter's other interests .............. ....


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animal1978

#4 PURPLE_2L_LX

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Posted 04 November 2011 - 09:17 PM

I preferred the picture with 4 pop bottles. Proper DIY . :backthen:

2004 TDCi 130 LX Estate. (6)


MK3 FUSE INFO CLICK HERE ......... FORD WIKI CLICK HERE ........... FORD ETIS CLICK HERE


Adding your location may find someone local who could offer assistance.

F-Super, Bluetooth OBDII (ELM) and a MS509 scanners (test subjects required).


#5 animal1978

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Posted 04 November 2011 - 09:31 PM

thanks everyone will try this out soon.
02 plate tdci 130 in green.

#6 peter scott

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Posted 04 November 2011 - 10:20 PM

I preferred the picture with 4 pop bottles. Proper DIY . :backthen:


You're a true Brit. Purple. I kind of like doing things on the cheap too. The pop bottles are good but not as good as the roadside "Oh, it's pouring out!" test from Romania. :}

Peter

F-Super Information ..................TDCi Injector Information

TDCi Injector Cleaning................Injector Leak-Off Test

Ford ETIS........                  ..  .........Peter's other interests .............. ....


#7 mondeotdci130

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Posted 14 August 2013 - 11:49 AM

will 6mm (ish) pipe fit on the injectors?


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#8 mondeotdci130

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Posted 14 August 2013 - 12:59 PM

 

/>I preferred the picture with 4 pop bottles. Proper DIY . backthen.gif


You're a true Brit. Purple. I kind of like doing things on the cheap too.

Peter

 

 

 

I heard he still has Whitworth spanners!, and keep a ball of string and chewing gum for the tough jobs


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can read/code and show live data


#9 peter scott

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Posted 14 August 2013 - 01:56 PM

will 6mm (ish) pipe fit on the injectors?

Not very tightly! 3.2mm i.d is what worked for me. See Injector Leak-Off Test below.

 

Peter


F-Super Information ..................TDCi Injector Information

TDCi Injector Cleaning................Injector Leak-Off Test

Ford ETIS........                  ..  .........Peter's other interests .............. ....


#10 mondeotdci130

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Posted 14 August 2013 - 08:09 PM

I said 6mm but i meant the plastic pipe id used for the Mr Muscle, it is not quite a tight fit on the Mr Muscle


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