Jump to content
SAU Community

Recommended Posts

Hey guys just wanted to ask some advice. I park my car on a slight incline, so that the front is higher than the back of the car. Every time I start it in the morning, after a few seconds, there's a horrible screeching sound coming from the engine, then the screech stops, and the revs increase a little then settle down after about a second to the normal rev range for idle. I'm not quite sure what this was, i thought it was low power steering fluid or something so I topped that up, but now that that's ok I'm not sure, because if I drive off too soon, the moving off process causes some slight screeches too...thanks in advance :huh:

Link to comment
https://www.sau.com.au/forums/topic/144425-start-up-screeeeeeeech/
Share on other sites

Sounds like a belt is a bit loose and when it sits it slides toward the back of the car and rubs up against something. Which belt is the scary part! Could be simple, A/C, Power steering or Alternator... or SCARY, Timing belt.

Get a Mechanic to check asap, or look yourself... but I'd say from what you've said you wouldn't know if the belt was too loose or too tight. So go the Mech :huh:

Sounds like a belt is a bit loose and when it sits it slides toward the back of the car and rubs up against something. Which belt is the scary part! Could be simple, A/C, Power steering or Alternator... or SCARY, Timing belt.

Get a Mechanic to check asap, or look yourself... but I'd say from what you've said you wouldn't know if the belt was too loose or too tight. So go the Mech :P

haha yeah you guessed right..I wouldn't know :huh: might wait to see what other ideas pop up then go ee him with a better picture

i'd say its just a belt slipping. and what is happeneing is that it is spinning for a second, then it heats up a bit and gets sticky and grips and gets on its merry way. very common problem amoung any type of car.

just go round and tighten all 3 belts slightly.

i hear that screaching noise every few months , i mainly notice it when we get some rain or a misty night , my opinion is it could be moisture getting to the belts? my opinion - im not a mechanic or anything , but i do notice it in those conditions . on my old car i got the same noise and sprayed some wd40 on them , would stop the noise , from happening in winter

i'd say its just a belt slipping. and what is happeneing is that it is spinning for a second, then it heats up a bit and gets sticky and grips and gets on its merry way. very common problem amoung any type of car.

just go round and tighten all 3 belts slightly.

Just a quick question (may be dumb lol) but how would i go about "tightening" the belts, i thought when they got worn out and started slipping you just had to replace them, can you extend the life of them?? Thanks heaps :(

Regards,

Sean

I'd replace them, but I'm picky :)

First you'll need to identify which belt is lose, they all have a little bit of slack... but you'll notice if one has more then the others.

Then find the tensioner/pulley that is on a sliding hole (when you loosen the bolt it can slide along that hole). Then just slide it until it's reasonably tight. It's not a big deal, but just remember to be careful and don't make it too tight as to stretch/damage the belt.

Wet some soap untill it becomes like Jelly then apply to the belt.

PRESTO......no noise.

That may stop the noise, but wouldn't it encourage more slipping?

Soap acts as a lubricant, especially when moisture is added.

If you want to be that dodgy, you'd be better off pouring coke on the belts.

The fix for you...did this last week on my Maxima.

Wet some soap untill it becomes like Jelly then apply to the belt.

PRESTO......no noise.

Cheers

:sick:

Damn, that sounds like a good fix, might try it in a min :wave:

thanks for all the replies guys :spank:

That may stop the noise, but wouldn't it encourage more slipping?

Soap acts as a lubricant, especially when moisture is added.

If you want to be that dodgy, you'd be better off pouring coke on the belts.

When the soap dries it ends up being a dry lube.

Coke :spank: .....is only when u use Bourban......

Dodgy you say.....my mechanic recommended it.

Angry Fist.........Post up your results after you have lathered up. :sick:

The thing is you dont want to lubricate anything here. Belts arent supposed to slip.

Another cause for a slipping belt if its not just slack is it can be bottoming out in the pulley. Like i said b4 check for correct belt tension and signs of slip and replace or tighten as necessary

I recently had a loose fan belt that made the same noise until the alternator regulated output to 14V, then it would stop.

Tightened a smidge and it's good as gold. 5mm just like Deren suggested.

PS Using the soap is a good way to help identify which belt is causing the noise. Washing up liquid works ok as well. It saves replacing belts left right and centre.

Tighten it up, or as someone sujested soap as a quick fix to the annoying squeek.

I'd sujest dr y soap, just take a cake of the old "sunlight" yellow shit, and why yoru cars running put it on teh belt :) I did it when mym was winging about her commodore squeeking, and becuase i coudlnt' give two f**ks about that car i soaped it up :) when i took my alternator of for re-conditioning i didn't do it up tight enough so mine did the same, but i stayed away from teh skyline with the sunlight soap, i just tightened it up :)

Same happened to me yesterday - put your hand on the pullys of the ALt and Steering pump etc when MOTOR OFF and you will soon feel which pully is slipping from the temp, near burnt my hand on Alt pully. Sure enough belt a bit loose but not imeadiately obvious.

I loosened it right off first to check it was not the bearings though, then tiightened up.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Dragging some reo behind a ute or trailer will smooth out a dirt road, I've used reo a few times to do unsealed road maintenance when we didn't have any plant available  It's best done when the dirt is wet though, and then you just let it dry out for a day to harden up For wetting the dirt I've used some 44 gal drums in a ute or trailer, and a water pump connected to a hose with a old sprinkler tied to the reo to wet the material down whilst spreading Basically just drive slowly up and down the road a few times dragging a few sheets of reo wired together with the sprinkler wetting it all down as you go
    • I did a motokhana years ago with ??Sydney Sporting Car Club???, it was on a grassy paddock and was heaps of fun, I think it was north west Sydney IIRC The old R33 boat was covered in grass and dirt, but nothing that a good wash and detail didn't fix And thinking back, when SAU did the airstrip run in Goulburn years ago, where the old 33 won highest RWD MPH, the quickest RWD ET on the airstrip, and best paint IIRC (before the runs down the airstrip) the damage to the rear quarters from stones flicking up required them the get a respray  I would definitely do a grass motokhana again in the MX5 Who knows someone that owns a farm with a big empty paddock  Liability these days is a big issue though
    • No intention of driving the car the way it's set up now, just wanting to make sure I haven't made any mistakes along the way so that the tune can go smoothly, I don't want to waste anyone's time with stupid issues. And of course I intend to get it towed to the dyno in a completed state 😅 I have the base fuel pressure with the vacuum disconnected set at about 40psi, which I believe is at least relatively close to stock fuel pressure, maybe I'll have a fiddle with the reg and see what happens. For all I know I could be wasting my time with this and I should just plumb it in and see what the tuner reckons. I just find it a bit strange that it seems to be under so much load just free revving, but maybe that's just a result of the turbo slowing down the exhaust gasses and making a restriction in the flow, with no boost to compensate.
    • The boy just hit up google translate and it worked a treat, he said step one was "please urinate with precision and elegance", he then sent me the correct translation  I get some new loctite for the small fixtures tomorrow and get some "dort" going after that 🤣
    • Right, so is the fuel pressure the same as it was previously? If not, well, it's not going to work well. I can understand the theory I assume you are going for, which is: "Run it N/A, and if I have the original AFM, and same amount of fuel and intake air as previously, the fact there's a turbo in my exhaust should still make it run" Which it... might? Provided you don't actually change how much air or fuel is going into the car.. or getting out. But if you have changed that, all bets are off. What is the purpose to even have the car run this way? To get it to a tuner? And if the goal is to limp it to a tuner, you're still going to what - plumb up a whole intercooler system and new intake in the parking lot out front before your tune......?
×
×
  • Create New...