Rank: Member
Groups: Registered
Joined: 8/11/2009(UTC) Posts: 122 Thanks: 1 times
|
I've had a whining for a number of years. It's heard in the cabin at 2,000rpm and sounds similar to a Supercharger whine and it's rather annoying. Any suggestions what I can causing the whine? I forgot to note it's an LS1 Edited by user Friday, 3 May 2019 8:33:04 PM(UTC)
| Reason: Not specified
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 2/03/2005(UTC) Posts: 3,135
Thanks: 1 times Was thanked: 35 time(s) in 33 post(s)
|
Is it all the time or sporadic? Does it do it more when hot or cold, or temp makes no difference? Does it matter what gear you're in or does it do it in all gears?
If it's purely engine speed related, and is sometimes louder or quieter, then I'd be thinking it's the alternator (assuming it's not a loud whine). Alternators will whine for a while after a cold start (or with high loads), and the whine can be much more pronounced at a certain RPM.
|
Cheers,
Mick _______________________________________________________________
Judge a successful man not on how he treats his peers, but on how he treats those less fortunate. |
|
|
|
Rank: Member
Groups: Registered
Joined: 8/11/2009(UTC) Posts: 122 Thanks: 1 times
|
Cold it is rather quiet and when warmed it whine gets louder as engine reaches running temperature.
When at running temperature it's engine speed related; above idle and gets louder at the engine rpm gets higher. The nature of the whine doesn't alter; it's the same in every gear.
|
|
|
|
Rank: Veteran
Groups: Registered
Joined: 26/02/2009(UTC) Posts: 1,641
Thanks: 16 times Was thanked: 27 time(s) in 25 post(s)
|
Timing chain and gears ?
Oil pump
or plastic lifer buckets are cracked.
Have a good look at your PCV as it should of been replaced by now.
How many KM is up on it, is it original.
Could be just the throughout bearing, put your foot on the clutch at that rev and see.
Get a stethoscope out and search about like.
|
|
|
|
Rank: Member
Groups: Registered
Joined: 8/11/2009(UTC) Posts: 122 Thanks: 1 times
|
It's done 265,000kms
I've diagnosed the it as a noisy power steering pump; it makes the same noise when turning lock to lock at low speed.
Not too sure why it's noisy though; I put a seal kit about 4 years ago and the pump is internally the same as my both my HQ and VN -both which where never noisy despite covering far more kilometers then my VY.
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 1/03/2005(UTC) Posts: 14,710
Thanks: 1 times Was thanked: 509 time(s) in 485 post(s)
|
Change it. They leak down onto the alternator and short them out. My V2 had it happen, cost me less than $200 for a replacement pump but $650 exchange for an alternator! |
_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords? |
|
|
|
Rank: Member
Groups: Registered
Joined: 8/11/2009(UTC) Posts: 122 Thanks: 1 times
|
Okay, I just checked it, there is a wet patch under the pump. The alternator is still charging; it's not effected yet.. BTW, does anyone know why there is a small metal restrictor in the rubber return line near the reservoir? I didn't slide it in while I installed a new hose. Edited by user Thursday, 6 June 2019 3:18:15 PM(UTC)
| Reason: Not specified
|
|
|
|
Rank: Veteran
Groups: Moderator, Registered, Veteran
Joined: 2/03/2005(UTC) Posts: 3,135
Thanks: 1 times Was thanked: 35 time(s) in 33 post(s)
|
Restrictors in the return line help provide a slight amount of positive pressure. This helps to prevent the oil from aerating after the sudden change in pressure (high pressure, restricted flow to the valve in the rack, and otherwise unrestricted flow back to the reservoir). |
Cheers,
Mick _______________________________________________________________
Judge a successful man not on how he treats his peers, but on how he treats those less fortunate. |
|
|
|
Rank: Veteran
Groups: Moderator, Registered
Joined: 1/03/2005(UTC) Posts: 6,057
Thanks: 1 times Was thanked: 202 time(s) in 183 post(s)
|
I think the 'restrictor' that Shearer is referring to is actually just a brass tube to prevent the plastic fitting from collapsing when the clamp is tightened.
Dr Terry |
If at first you don't succeed, just call it Version 1.0 |
|
|
|
Rank: Member
Groups: Registered
Joined: 8/11/2009(UTC) Posts: 122 Thanks: 1 times
|
I bought a new pump and the noise it no more, in fact not only quieter but smoother too
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.