Author Topic: LF 1.6td boost pin and diaphragm (Read 6000 times)

RandoM · « **on:** August 05, 2008, 09:47:12 pm »

As stated in the title, I've got a 1.9td pump with 10mm head and I need a 1.6td more agressive boost pin

I'm in Quebec, Canada

spencebm · « **Reply #1 on:** August 06, 2008, 06:18:21 am »

they dont seem to fit too well in my opinion and add too much fuel because they are loose...any one else have this problem?

zukgod1 · « **Reply #2 on:** August 06, 2008, 06:45:56 am »

Isn't the pump the same? i mean people are taking the TDI pump and using parts from AAZ or 1.6TD to make the M-TDI pump.

I don't have any experience but I've not heard anyone complain I don't think. ?

jimfoo · « **Reply #3 on:** August 06, 2008, 07:37:57 am »

The Cummins pin was a good fit in my 1.9.

Choppercat · « **Reply #4 on:** August 06, 2008, 06:03:45 pm »

You can grind your 1.9 pin: the original pin has a 1 mm recess. Check on the recess to see where how deep your enrichment needle rides on the boost pin and grind a surface at that same range of movement.

After grinding 2mm deep I saw a good improvement so i made it 3mm but it smoked quite a bit even at 15psi until I got an intecooler. Just experiment with yours: you have 3 sides of the pin to play with :wink:.
Just make sure you polish it to reduce friction with the enrichment needle.

RandoM · « **Reply #5 on:** August 07, 2008, 10:07:22 pm »

Didn't think 'bout that thanks

Choppercat · « **Reply #6 on:** August 08, 2008, 05:08:25 am »

Where about are you in the Belle province?

jimfoo · « **Reply #7 on:** August 08, 2008, 07:42:00 am »

Quote from: "Choppercat"

Y Just experiment with yours: you have 3 sides of the pin to play with :wink:.
Just make sure you polish it to reduce friction with the enrichment needle.

You could grind more than 3 considering the narrow contact point the pin rides on.