mkemp590 Posted November 28, 2021 Share Posted November 28, 2021 Hi all, I just purchased my first CS! Test drove and PPI done and all was good. On the way home I noticed a whine that drowns out everything else. Most noticeable around 3k rpm. Changes with the rpms and disappears at idle. You can hear it reving in neutral though. The belt was worn and my mechanic said the intentioned pulley was a bit loud so I replaced both. No difference in the whine. I took the belt off and tested the noise with no change. Sometimes after about 30-40 minutes of driving, it lessens but doesn’t go away. The power steering reservoir was bone dry. I refilled it, but whine is still there. The other issue I’m having is a low speed clank. Seems to happen sub 20mph going through the neighborhood. Random. 1st and second gear, straight or turning, on and off clutch. Doesn’t seem to make the noise going over bumps. Any insight would be greatly appreciated! Link to comment Share on other sites More sharing options...
mkemp590 Posted November 28, 2021 Author Share Posted November 28, 2021 Link to comment Share on other sites More sharing options...
vegan_porsche_driver Posted November 29, 2021 Share Posted November 29, 2021 In no way am I any kind of expert, and listening to your video I can't say it's 100% the same, BUT my 987S whines all the time. It is more noticeable at 2-4,000 rpm, after that I think it's just drowned out by the engine. I've perused numerous forums and taken it to two independent specialists (for other things, but asked them about it while I'm there) and the upshot seems to be "987s make that noise". No idea what it is, when I first bought the car I really noticed it and it kinda ruined the whole experience a bit to be honest. But yeah, that's my two pence. Might reassure you if nothing else! Don't know about the clank... Link to comment Share on other sites More sharing options...
Lennym1984 Posted November 29, 2021 Share Posted November 29, 2021 As I said on the planet-9 forum, the clank is probably drop links or tuning forks (either front or rear depending on the source of the sound). The whine is likely just the fact that the belts and pulleys are about 2 inches from your back versus about 3 foot, a load of carpet, a steering wheel, and a windscreen in a normal car. Sort out the suspension and then enjoy the car. Link to comment Share on other sites More sharing options...
Aaron Posted November 29, 2021 Share Posted November 29, 2021 Your engine sounds perfectly normal. Not a problem. Link to comment Share on other sites More sharing options...
Hunter Posted November 29, 2021 Share Posted November 29, 2021 Another vote for nothing being wrong with the belt whine. 987's are noisy; most of the noises in the belt videos are what I'd write down to "happy mechanical whirring". That said, since you have the cover off, a visual inspection of the belt and the wheels (and a poke/prod) wouldn't hurt. I'm not quite getting the clunk noise from the first video, though. Link to comment Share on other sites More sharing options...
mkemp590 Posted November 30, 2021 Author Share Posted November 30, 2021 Thanks everyone! I appreciate the reply’s! Been driving and enjoying. I’ll get the clank checked out for sure. I had a thought about the clank. There is a balancing weight connected to a control arm on the trans that is a bit loose and squeaky… anybody had any experience with it? Link to comment Share on other sites More sharing options...
Windymiller Posted November 30, 2021 Share Posted November 30, 2021 (edited) I second Lenny - the clank sounds like a drop link, or control arm (front or rear). i had a similar noise in mine earlier this year and it was the rear right control (aka ‘coffin’) arm. get a mate to stand outside the car whilst you drive at slow speeds in forward and reverse over some sort of ‘sharp’ speedramp - they might hear the metallic ‘clank’ and at least pin point if it’s occuring when you’re front or rear axle travels over the bump / ramp. happy motoring 👍🏻 Edited November 30, 2021 by Windymiller Typos Link to comment Share on other sites More sharing options...
Ben Posted November 30, 2021 Share Posted November 30, 2021 I used to get very hung up on even the smallest perceptible 'strange' noise on cars I've owned. And most of the time no one else could hear it but me. But when you think about how many different moving parts there are in a modern combustion engine, arguably it would be weirder if they all did sound exactly the same. Link to comment Share on other sites More sharing options...
mkemp590 Posted December 3, 2021 Author Share Posted December 3, 2021 Thanks again for all the feedback! so as an update I’ve found that the clutch master cylinder is leaking. Saw a drip on the pedal and traced it back up the the master. Ordered a new one and a power bleeder. Link to comment Share on other sites More sharing options...
Ben Posted December 3, 2021 Share Posted December 3, 2021 25 minutes ago, mkemp590 said: Thanks again for all the feedback! so as an update I’ve found that the clutch master cylinder is leaking. Saw a drip on the pedal and traced it back up the the master. Ordered a new one and a power bleeder. I'd recommend checking out the threads on here about changing/upgrading the MC to a GT3 unit, if only to take heed of the issues that can be experienced (and how to resolve them) when bleeding the brakes, as you will need to activate the ABS pump. Link to comment Share on other sites More sharing options...
mkemp590 Posted December 3, 2021 Author Share Posted December 3, 2021 That’s a great idea. I’ll definitely upgrade when I get to the brakes. Link to comment Share on other sites More sharing options...
Andyoz Posted December 3, 2021 Share Posted December 3, 2021 (edited) Yes, your Power Steering reservoir being empty is never a good sign.. At least you found the reason. Strange PPI didn't spot that.... Edited December 3, 2021 by Andyoz Link to comment Share on other sites More sharing options...
Ben Posted December 4, 2021 Share Posted December 4, 2021 On 03/12/2021 at 19:06, mkemp590 said: That’s a great idea. I’ll definitely upgrade when I get to the brakes. Sorry just realised you were referring to the clutch rather than the brake MC, I think I must have brakes on the mind having recently swopped mine over! 😁 Link to comment Share on other sites More sharing options...
Windymiller Posted December 5, 2021 Share Posted December 5, 2021 11 hours ago, Ben said: Sorry just realised you were referring to the clutch rather than the brake MC, I think I must have brakes on the mind having recently swopped mine over! 😁 Don’t the clutch and brakes use the same master cylinder though, and the clutch also has a slave cylinder?🤔 or have I just made that up completely… 🤷♂️ Link to comment Share on other sites More sharing options...
Lennym1984 Posted December 6, 2021 Share Posted December 6, 2021 On 05/12/2021 at 10:44, Windymiller said: Don’t the clutch and brakes use the same master cylinder though, and the clutch also has a slave cylinder?🤔 or have I just made that up completely… 🤷♂️ Errr.... They use the same reservoir if that's what you mean Link to comment Share on other sites More sharing options...
Windymiller Posted December 7, 2021 Share Posted December 7, 2021 Ah, ha - thanks for correcting me Link to comment Share on other sites More sharing options...
Lennym1984 Posted December 8, 2021 Share Posted December 8, 2021 16 hours ago, Windymiller said: Ah, ha - thanks for correcting me It would be an interesting drive if they both used the same master cylinder 🤣 1 Link to comment Share on other sites More sharing options...
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