Hammer Mod how hard do you hit it?????

[chrisfiat]

When performing the hammer mod :

1 - how hard do you hit the pump?

2 - where exactialy do you hit it ? I know the drivers side but where on the pump?

3 - with the eng running or not??


subject is a 1997 A3 jetta 5speed with RC2, tdi racing 520 nozzels, and dawes device for over boost and a viper bleed boost controler.

Thanks

Chris

 

[buckweat diesel]

engine running

tap it soft

on the 17mm cone nut on the left side of the pump

you may see a little fuel its ok

be safe

 

[chrisfiat]

thanks

 

[woofie2]

use big screw driver, more control.

(not the picture of MoGolf with the 30# sledge hammer)

 

[oldpoopie]

I use a small plastic mallet

 

[ArturCosta]

I never taped it... just got it a bit more loose and pushed it with both hands with teh vag com in front of me.
With tapping it was very inconstant.

Cheers

 

[KERMA]

Don't do it with the engine running!! (ASK SOOTMAN WHAT HAPPENS)
Gently pry with a screwdriver. (barely!) Hammer mod is just a figure of speech, a colorful phrase coined by a colorful individual known in these parts as "oldman".
Wouldn't you just prefer to install good nozzles so you don't have to mess with the pump to control the smoke?

 

[mojogoes]

Quote........"With tapping it was very inconstant",
Sounds like you un-cracked the bolts tooo much.........half a turn usually does it.

 

[madman91]

Wouldn't you just prefer to install good nozzles so you don't have to mess with the pump to control the smoke?

In-post advertising.

 

[woofie2]

I would suggest having a Cardinal baseball player hit it with a baseball bat, but then they would be whacking at it all day before they hit anything.

In-post advertising.

Vendors who PAY Money to support this site, can do that.

 

[Fortuna Wolf]

if you do it when the engine is running you can either squirt diesel all over or get the engine to run away. I used a rubber mallet and gently whacked it a few times each way and then checked in vag-com.

 

[ArturCosta]

Quote........"With tapping it was very inconstant",
Sounds like you un-cracked the bolts tooo much.........half a turn usually does it.

Maybe...
First I couldn´t move the pump and hammered it a bit hard... then I couldn´t tune it very well so I did it with the engine runing (seems like its not a very good idea ) but it worked ok

I will now need to do this the other side... un hammer mod so I can install PP502 without too much fuel

Cheers

 

[mojogoes]

I've always done it with the engine running and if you just lightly crack it open there should be no problems, the trouble with doing so with out the engine running is you 1 can't here the revs change which means 2 you doing know how far you have gone .

Which means you could have a run away when you next turn the engine on.

 

[oldpoopie]

Yep. I first crack all 4 loose 1/4 turn, then if they feel too loose, I snug them a bit. Then start the car, vag-com sitting on the airbox, tap tap tap with the hammer. If the pump leaks when you start the car, you've loosened the top too much.

 

[ArturCosta]

I've always done it with the engine running and if you just lightly crack it open there should be no problems, the trouble with doing so with out the engine running is you 1 can't here the revs change which means 2 you doing know how far you have gone .

Which means you could have a run away when you next turn the engine on.

I did it with the laptop at my side and with the pump nearly opened (it actualy got a bit of fuel out from the sides)
Oh well, but I already done 40k kms and no problem.

BTW , PP502 with a stock turbo... what IQ should be used for not having too much fuel? 6mg?

Thanks

 

[Oldman]

you don't need the engine running, but you should put a scribe line down or you will not know how much it moved and a very little bit makes a huge change like.005