Wierd noises from sprintex supercharger
 

Hi
New here :)
I have 2012 toyota gt86 with sprintex kit on it. I bought it with the kit on it and ever since then the engine bay make squeaking noises , probably belt/pulley noises.
First inspection showed that the accessory belt tensioner was not working right so he got replaced with a new one, but the noise is still there.
Ill try tomorrow changing the drive belt since i have a spare one at my garage, but she looks perfect, no signs for cracks or anything.
Im starting to think the noise is from the sc pulley , is it possible to oil him a lil bit ? Mabey he making this squeaking noises?
Does anyone faced the same problem ?
Thanks.


Sent from my iPhone using Tapatalk

Have you changed the gear oil in the supercharger itself in the time that you've owned the car?

Well no i didn’t.
Actually didn’t know there is oil in the supercharger ..
Where can i get some info about this ?


Sent from my iPhone using Tapatalk

So i did some research and bought redline 75w90 ns gear oil , changed the sprintex oil that was almost empty ! :(
Changed the drive belt also , and now everything seems to work perfect. No noises at all.

Thanks !


Sent from my iPhone using Tapatalk

No problem! Glad you found the issue before anything went wrong! enjoy your car :thumbup:

yeah the rotrex blower in the jrsc kit tends to eat oil too. everyone says the service interval for the blowers oil change is 50k miles or 2 years, im like no way in hell dude. 10k miles.

Sprintex kits are every 30k but when pushed I have read the seem to loose a bit oil. Most people recommend checking the oil level regularly and it must be jacked up to to get a level reading.

Sent from my ONEPLUS A5010 using Tapatalk

Mine is making weird noises too. Ive attached a video which distinctively demonstrates the sound I'm referring to. I haven't gone to a shop to have it looked at yet but Im thinking this a pulley bearing on its way out (not sure which one)
This noise completely goes away once the car is warmed up. Does anyone know what this could possibly be?



[ame]https://www.youtube.com/watch?v=8_DGa2WWJ2U[/ame]

Are you talking about that squeak? If so it's the belt. What pulley do you have? Mine did that for a bit after I switched to the 69mm from the 72.5 but it's gone away. Get a spray bottle of water and use to lightly spray the belt. If the sound goes away might want to put a fresh belt.

Sent from my GM1915 using Tapatalk

Hey thanks for the reply
Yes I'm referring to that squeak lol
I'm running the 69mm pulley since I had the SC install. I just got this supercharger + pulley/belt a few months ago. Is it possible I need a new belt already. I dont track the car... just daily drive it and occasional pulls nothing crazy. It's hard to believe I need a new belt already but I will try your suggestion.

What idler pulley are you using?

Sent from my GM1915 using Tapatalk

I'm still using the OEM idler pulley.

Dorman 419-610 Idler Pulley https://www.amazon.com/dp/B003QVIXYU..._yT3iEbDB97W6J

Try this. The stock one will not work as you drop the down to smaller sc pulleys

Sent from my GM1915 using Tapatalk

I ran one of these kits for 62K miles. I'd recommend checking the gear oil in the blower on a very regular basis, it will consume oil and if it goes dry bad things will happen.

Another good point. To get a correct reading you need to jack up the rear end to get the engine at a flat level

Sent from my GM1915 using Tapatalk

To make measurement easier in the future, I went through the above procedure to get the proper level, then let the car down in its normal parking place and inserted a small screwdriver and marked the correct level with a small file. After that I just inserted the marked screw driver to check the level with out trying to relevel the SC.

I will most likely look into that, much thanks for your input.

That's a smart way to keep cheks on oil levels... good method!!

What's your method of draining the oil out? Some sort of syringe or soap pump?

OK, I use a "heepadermic nudal" A syringe with a short piece of tubing on the end. A basting syringe with a short piece of silicone. I use a strait pin through the end of the tubing and the syringe to hold it in place. Then cut the pin off.
I use a larger syringe and tube to do the same for diff and trans. I work on old English sports cars and often it is hard to get fluid in or out.

Your sound is belt slippage. Look at how the squeak is timed exactly with each complete cycle of the belt movement. It's most likely slipping over the alternator pulley. Once the battery charges back up from the drain of starting, it stops squeaking. Try cranking up the cabin fan and all the lights. Does it squeak again?

There may be shit jammed up in the grooves of the belt. I meticulously picked all the bits of gravel out of my belt. Cured the slip. Normal people might just buy a new one. Meh. It's therapeutic porch time for me. Other old people whittle.

Squeaks, weird noises, ECUTEK problems etc lol...

Welcome to the boosted club... a car that wasn't designed to take boost

Aren't we all victims... mines been doing the same shit and Im as clueless as you budd lol

Also with different size pulleys comes the need for different length belts. To set the tensioner operating in its most effective range, select the shortest possible belt that can be fitted without using special tools.

I remember that the recommended belt length squealed on a friend's sprintex-boosted engine. Fixed when I replaced it with the next step shorter. YMMV.

This is the belt I use

Gates K061015 Multi V-Groove Belt

@huyuk any updates?

Sent from my GM1915 using Tapatalk

I finally got around to spraying water on the belt as it was squeaking... the sound went away instantly. So now that we know its the belt the question is what belt is best for 210 Sprintex with a 69mm pulley.

I would recommend this idler pulley

Dorman 419-610 Idler Pulley https://www.amazon.com/dp/B003QVIXYU...p_mob_ap_share

Belt I use

Gates K061015 Multi V-Groove Belt https://www.amazon.com/dp/B000C2YCXM...p_mob_ap_share

Sent from my GM1915 using Tapatalk

Thanks for the recommendations I'm gonna look into this

Hey I just wanted to keep you updated. I went ahead with the belt and pulley you suggested. It seems to have fixed the squeaking issue so far and I also feel the car is alot more responsive. Im slipping tire and the rear comes lose in certain gears & RPMs where it wasnt before. I definitely feel more response from the car.

Here is where it gets tricky - If I was previously using the larger belt which was designed for a 75mm pulley - Is it possible my belt was slipping this whole time because I ran the 69mm pulley instead? Ever since my Supercharger instal & tune I've been running the Sprintex original belt on the 69mm pulley. Is it possible that now with a tighter/smaller belt my car needs a revision tune??
I'm so confused lol :bonk:

Possibly, but probably not, I bet it got worse over time, so wasn’t as bad when initially tuned and now worse, you might have been running rich with the slippage. Check your AFR under boost, and make sure IAM isn’t dropping. Tune should be able to compensate for minor boost changes. Could always send a log to your tuner and tell him what you did.

Would not hurt to send a log.. but check the above. Definitely look at these before you go WOT as you don't want to be lean now :).

Sent from my GM1915 using Tapatalk