Author Topic: Quieting the IP  (Read 4268 times)

October 19, 2012, 04:45:43 pm

Syncroincity

  • Veteran

  • Offline
  • ***

  • 727
Quieting the IP
« on: October 19, 2012, 04:45:43 pm »
My Giles pump is loud... embarassingly so, particularly in the concrete canyons here where the clack echoes from all directions.
I seem to recall this might be a timing issue? I set the pump to 1.0mm, which way (towards or away from the head) should I bump the pump a bit to reduce injection noise?
JC McCavitt
'86 Syncro GL Camper AAZ
'98 Jetta Wolfie
'04 Passat Variant GLS 4Mo 5MT

Reply #1October 19, 2012, 04:47:22 pm

libbydiesel

  • Global Moderator
  • Veteran

  • Offline
  • ****

  • 3399
Re: Quieting the IP
« Reply #1 on: October 19, 2012, 04:47:22 pm »
Away.

Reply #2October 19, 2012, 04:49:48 pm

Syncroincity

  • Veteran

  • Offline
  • ***

  • 727
Re: Quieting the IP
« Reply #2 on: October 19, 2012, 04:49:48 pm »
Gracias.  :)
JC McCavitt
'86 Syncro GL Camper AAZ
'98 Jetta Wolfie
'04 Passat Variant GLS 4Mo 5MT

Reply #3October 19, 2012, 05:01:40 pm

R.O.R-2.0

  • Veteran

  • Offline
  • ***

  • 7335
  • Personal Text
    Pacific Northwest - Oregon - USA
Re: Quieting the IP
« Reply #3 on: October 19, 2012, 05:01:40 pm »
your PUMP is loud?!
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #4October 19, 2012, 05:34:07 pm

theman53

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 7835
  • Personal Text
    Holmes County Ohio - North Central Ohio
Re: Quieting the IP
« Reply #4 on: October 19, 2012, 05:34:07 pm »
IIRC Giles told me to time no higher than .95mm. It is probably different for every pump he builds but it is something to think about.

Reply #5October 19, 2012, 06:17:22 pm

8v-of-fury

  • Guest
Re: Quieting the IP
« Reply #5 on: October 19, 2012, 06:17:22 pm »
Yes the pumps are physically loud, there is quite a bit going on inside them ;)

But it is not the pump that you hear clacking away, it is your WAY to advanced timing lol. Fall back to like .90 or .95mm

Reply #6October 19, 2012, 08:09:16 pm

Syncroincity

  • Veteran

  • Offline
  • ***

  • 727
Re: Quieting the IP
« Reply #6 on: October 19, 2012, 08:09:16 pm »
your PUMP is loud?!

...OK, the pump is making the motor loud, LOL
JC McCavitt
'86 Syncro GL Camper AAZ
'98 Jetta Wolfie
'04 Passat Variant GLS 4Mo 5MT