Jump to content


Toggle shoutbox Shoutbox Open the Shoutbox in a popup

@  Tobias05 : (22 June 2017 - 01:17 AM)

ISS got shortened during install somehow and had to lengthen back to size.

@  Tobias05 : (22 June 2017 - 01:15 AM)

...if I am able to bolt down both ends with little resistance than I would imagine it is properly seated?

@  Tobias05 : (22 June 2017 - 01:14 AM)

Swapped rack and pinion, not sure if ISS is seated.

@  Marchi1 : (13 June 2017 - 11:32 PM)

getting there...you need to come into the City

@  alemstrom : (09 June 2017 - 02:26 PM)

What about you?

@  alemstrom : (09 June 2017 - 02:00 PM)

alive and kicking

@  Marchi1 : (07 June 2017 - 12:31 PM)

Andrew! Wassup buddy?

@  supercharged... : (02 June 2017 - 12:20 AM)

lower

@  alemstrom : (25 May 2017 - 05:21 PM)

;) happens, you should be able to edit your posts, I know I am able.

@  phi_alpha : (25 May 2017 - 01:18 PM)

i thought this was the search bar... im an idiot

@  phi_alpha : (25 May 2017 - 01:17 PM)

mach 1

@  alemstrom : (24 May 2017 - 01:43 PM)

Which GP forum? Clup GP?

@  Billycar11 : (17 May 2017 - 02:15 AM)

RIP Grand prix forums

@  alemstrom : (15 May 2017 - 12:01 AM)

Is this mic on. Test Test. How is everyone?!

@  Nateteo : (11 May 2017 - 12:19 AM)

So I found some Bonneville 16X7 webbed mags at my work.. Kinda rough. Has potential though.

@  Marchi1 : (21 April 2017 - 01:28 AM)

Whoa new guys....

@  jesman : (19 April 2017 - 01:24 PM)

random hello

@  BillyrayM : (19 April 2017 - 06:18 AM)

Any 1 on that can help me with my post?

@  BillyrayM : (17 April 2017 - 10:21 PM)

:sad-roulette:

@  Mitchell075 : (10 April 2017 - 03:39 AM)

Hey!


Photo
- - - - -

Knocking sound, possible piston slap maybe?

Knocking pistons bearings tensioner coupler supercharger supercharged help

  • Please log in to reply
4 replies to this topic

#1 SilverbackRegalGs

SilverbackRegalGs

    Newbie

  • Members
  • Pip
  • 14 posts
  • LocationVirginia
  • First Name:
    Devan

Posted 11 March 2017 - 09:11 PM

2000 Buick Regal GS

At idle, there's a pretty obvious knocking sound, but once the rpms get anything over about 1k, the sound gets very feint almost to the point to where you can barely barely hear it. I've replaced the tensioner for the supercharger belt, and I've replaced the coupler inside the snout ready. I'm at a loss. I've been asking people and they keep saying it sounds like rod knock or piston slap. When they say that, I think to myself, wouldn't you be able to hear both of those all the way through the rpms? The closest video I could find with the same sound is this.. https://m.youtube.co...h?v=nIpIrwsn5pg

This is my daily, so I'm trying everything before I have to get rid of her.
  • 0

#2 fastbuick25

fastbuick25

    Member

  • Members
  • PipPipPip
  • 271 posts
  • Locationoklahoma
  • First Name:
    bryan

Posted 12 March 2017 - 12:43 AM

take supercharge belt off and see if noise is still there if soo then take main drive belt off and see if noise there


  • 0

#3 tippietoejoe

tippietoejoe

    All the Basic Mods

  • Members
  • PipPipPipPip
  • 727 posts
  • LocationColorado Springs
  • First Name:
    Derrick

Posted 12 March 2017 - 07:39 PM

In some cases the noise will not sound the same during different levels of the rpm speeds...this is because the oil flow and way the bearing could be damaged..a rod could float and create less noise....there is also the valves to look at if you are hearing a knock to ticking coming off the top end...a floating valve can get louder and more violent with rpms aswell...Bryan has the best idea....if you think it's a sc issue than remove the belt...the screw will still turn slightly but not at all at normal speeds....if you still hear the noise do a compression check...if you still have issues the only way to check for a floating valve or worn guides is to remove them.
  • 0

#4 b4black

b4black

    Been There. Done That.

  • Members
  • PipPipPipPipPip
  • 846 posts
  • LocationAurora, IL
  • First Name:
    Rich

Posted 13 March 2017 - 10:50 PM

Check into a cracked flexplate. Common problem and sounds like a bad bearing. Worse at isle, goes away with rpm. http://www.regalgs.o...ate#entry390405
  • 0

#5 tippietoejoe

tippietoejoe

    All the Basic Mods

  • Members
  • PipPipPipPip
  • 727 posts
  • LocationColorado Springs
  • First Name:
    Derrick

Posted 15 March 2017 - 10:40 PM

good call Rich.


  • 0





Also tagged with one or more of these keywords: Knocking, pistons, bearings, tensioner, coupler, supercharger, supercharged, help

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

BoHeGeHa Dark Blue 2.1.1 © Thomas Yugar (Chemical Chaos)
Official upgrade for IPB 2.3.x © Michael ( Dev Fuse )
3.X © Upgrade by Dumbledore ( Tppskinning )