supercharger on the way out?

[nandor markos]

hey im just wondering if there are any tell tale signs that a supercharger is on the way? as in diferent noises different power feelings, exhaust smoke etc

any advice would be much appreciated

[FLAWLES]

look at the colour of the s/c oil

check for play in bearings

also you will know when u have dropped a sc bearing..............................................they make one hell of a noise

trust me on this one

[nandor markos]

well i went and saw my the mechanic thats rebuilding my motor and there was not a drop of oil in the supercharger, and just b4 a took it of the road it used to stop boosting when the engine was cold and it started making a high pitch scream when it was boosting

[CozmoNz]

there was not a drop of oil in the supercharger

Now now, whos faults that?

it used to stop boosting when the engine was cold

This means it dropped off boost? it didnt boost in the first place? Did it boost when warm? specifics....

Because boosting when an engines cold is good for it.... right?

and it started making a high pitch scream when it was boosting

Sounds like the supercharger almost seized... could be the belt slipping over the pully... or just a sliping belt...

[Adamal]

The S/C clutch is governed by throttle position, so if you've been hitting boost in the past while the engine was cold, that means you're giving it too much.

I get the feeling that this shall be a rather expensive lesson for you.

[evil_si]

the high pitch squeal,
in my opinion if theres no oil in it the bearings would have collapsed, and will be the 2 rotors scraping against each other, if this has happened they will be fu*ked, as well as the housing and end plates.

[CozmoNz]

but if that happened evil_si, wouldnt as soon as the clutch engages, the engine should basicaly stall? the amount of load..... (or belt just slip)

[FLAWLES]

IF ITS sqelling two things come to mind

belt needs tighting or its pooked

or the s/c puley bearing has colapsed " which is a cheaper option fix it now as this is the cause of the rest off the bearings to fail

and if the rest fail

well evil si sumd it up

[FLAWLES]

but if that happened evil_si, wouldnt as soon as the clutch engages, the engine should basicaly stall? the amount of load..... (or belt just slip)

sort off
this is what happened to me

driving to work ..........yea
herd a load bearing failer nosie " not a nice sound "
looked at the boost gauge
it was reading 10 on the vacum side and not going up
sc light was on
and you could here the engine trying to suck air but could not
i was lucky for two reasons

i did not suck in any valve stem seals

and the rotors in the sc jammed solid due to the fact that two of the very small ball bearing poped out and got stuck in between the two rotrs

it made a meal of the sc 12 nothing was salvgable not even the sc clutch

[evil_si]

but if that happened evil_si, wouldnt as soon as the clutch engages, the engine should basicaly stall? the amount of load..... (or belt just slip)

na its only belt driven should never stall the engine, and when it engages its not at idle so will just slip the belt, or make the supercharger turn,

when the rotors touch each other, the housings or end plates they make a horrible loud squealing noise, much worse than any belt slip


ive had a supercharger fail on a trip, and simply unplugging it is an easy way to get it home, 230km distance, although it is very gutless, but with no adverse results

[nandor markos]

well the lack of oil is my fault but i havent owned the car for to long and buying it of a friend which is a dumb idea i thought he would have checked all that

it never made a real bad squell or nothing like what has been described it just sounded like it was boosting a hell of a lot but only reading 7psi and basically the car went nowhere (gutless as) this is when the car was warm, but when the engine was cold it would read zero boost and the charger made no noise

and the cold thrash well probably not the best idea

[CozmoNz]

Id imagine it wouldnt let the supercharger cluch engage if the car is cold >.>

You know... for obvious reasons

[IH8TEC]

the s/c clucth will engage when the engine is cold

[CozmoNz]

what a silly idea,

BAD TOYOTA BAD BAD! They went to the trouble with Turbo's to not let them above 7psi etc on some cars, and it would have been so much easier to do it on an electronically controlled clutch... but nooooooo

[Lloyd]

Fill it with oil and see if it goes any better. You get 50mL or it from Toyota for around the $12 mark for trade. Probably need 100mL though depending on how empty it is.

[IH8TEC]

jsut requires sensible drivers to not shove a whole lot of boost in the motor when its cold. i never used to go ove 3000rpm when it was cold

[FLAWLES]

good man

just another thought
it could be the s/c clutch..... go for a boost " when warm " stop pop the hood and see if there is a burning smell coming from the s/c

u mite find that the s/c clutch is poked

[wanado13's]

I think your screwed man because that same noise happened to me and three weeks later it stopped boostin altogether because it broke. My supercharger also made high pitch squeaking noises and stopped boosting. I had supercharger oil in the charger but when I bought it it was pretty low. If what happened to mine is whats happening to yours your bearings are shot/seized and it will eventually fry your clutch and youl get no boost whatsoever and the squeaking gets worse