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Supercharger leak

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Old Mar 10, 2008 | 05:17 PM
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Default Supercharger leak

I have only had my S/C on for about 5K and I just noticed there is oil around the area where the 3 allen bolts bolt the shaft to the S/C is this normal it is not alot of oil not dripping but is there
I know there is a seal inside of that housing I have gotten to the point where I wipe it off daily
Old Mar 10, 2008 | 05:19 PM
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Yessir your seal is gone. Its not normal. You can order a new seal and rebuild it (chances are you will break one of the 2 impeller bearings though) or send it out and get rebuilt.
Old Mar 10, 2008 | 08:23 PM
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^ are those the ones you are rebuilding? or different?
Old Mar 10, 2008 | 08:26 PM
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What do you mean? If your talking about the end seal he has leaking, then yes, thats the one Im fixing.
Old Mar 10, 2008 | 08:31 PM
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I cannot believe that after 5000 miles I have to tear this thing apart if that is the case that I have to rebuild the S/C every 5 months then the TRD s/c is a piece of s@@@
I raced 7 sec race cars for many years and only took them apart every year for maint. There is obviously a problem here.
It is not dripping so I will continue to run it I guess
Old Mar 10, 2008 | 08:34 PM
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^ its not going to get better. If its stock get it warrantied. You can let it keep leaking but its going to start loosing pressure though the seal and the oil will continue leaking onto everything and eventually start squirting out. You dont have to do it every 5 months if you do it right the first time you rebuild it with the correct parts.
Old Mar 10, 2008 | 08:59 PM
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I will call TRD and see what they say I installed this in November and yes I torqued everything there is only 5 K on the Supercharger and 30 k on the car
As far as the right parts I would have thought TRD would have shipped it withthe right parts
Old Mar 10, 2008 | 09:00 PM
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You have a 12 month 12000 mile warranty. Did you get the car reflashed?
Old Mar 10, 2008 | 11:02 PM
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Yea ordered the S/C from CA. and sent them the ecu to have it flashed.
I just loosened the 3 allen bolts up and no oil ran out , is it possible that the very little bit of oil I had there could have been used at assembly? TRD told me to take it to the dealer and have them look at it but the only S/C my dealer has seen is mine so I dont want them working on it....
The only mod thats on it now is the BOV which I cant see how that can make it leak but waiting on the 9.5 pulley
Old Mar 10, 2008 | 11:37 PM
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i hope you can get it taken care of man. wow, worries me, i can knock out 5k miles in a month or less, and i just ordered a s/c
Old Mar 11, 2008 | 02:37 AM
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Your running a BOV? If thats so, thats your first problem unless its running recirc.
Old Mar 11, 2008 | 02:59 AM
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Its a bosch 110 which is needed the stock BOV is Bosch 102 which leaks because of the weak spring the 110 closes tight at 10 inches of vacuum
But it works and looks like the factory 102
Old Mar 11, 2008 | 03:17 AM
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^ohh ok, yea its more commonly refered to as a BPV on here but yea, that woudn't cause a single problem. Usually oil there does mean a bad seal but good luck man
Old Mar 11, 2008 | 03:48 AM
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If you feel the underside of your blower you can tell if the seal is gone. Also look on your headers heat shield. Ill get pictures tomorrow of both locations and what it looks like ( I never cleaned the oil off my heat shield, Im super lazy when it comes to that. LOL)
Old Mar 12, 2008 | 02:20 PM
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This is my opinion and I hope I am correct
I was in the automotive business for 13 years and built and raced drag cars from 13 sec to 7 seconds including alcohole injected cars with that said, We always built our engines to run neg pressure in the engine block In looking at the amount of pressure that the 2.4 makes by simply removing the oil filler cap at idle under no boost it is considerable. I believe that the crank case pressure is enough to apply enough pressure to the blower housing thru the oil drain tube to push oil out the seal of the supercharger
The seal in the S/C is not a high pressure seal .
Yesterday I wiped off the small amount of oil that was at the jack shaft disconected the vent tube to the valve cover and rechecked the shaft today (after only 20 miles but boosting as much as possible)there was no oil residue at all, of course a external ventilation system is needed to run this ,this way for any period of time which I will do as my next step. I see to many posts here with seal leaks on a blower that is tried and tested by Vortech and other manufacturers are not haveing these issues. These are just my thoughts based on my experiance with very high compression race engines. I will get a external system and test further.
Old Mar 12, 2008 | 02:24 PM
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No no no, the reason the seal goes out is due to the construction of it. Its a single walled rubberesqe seal. The upgraded seal is a dual wall made of vition which works really great with oil. What exactly are you talking about when you say the jack shaft?
Old Mar 12, 2008 | 03:35 PM
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I am refering to the shaft that bolts to the S/C housing by the 3 allen bolts and as far as the double wall seal upgrade that would be a high pressure seal which would mean it would take more crankcase pressure to make it leak I was not aware there was a upgraded seal. is that just a mod or is that the way the S/C is now shipping or both.
If that is the case I would not want to get this done under warranty because If the replacment supercharger comes with the low pressure seal I would end up in the same boat in a matter of time. have you got any type of directions on seperating the supercharger case I know there is some postd here After removing the bolt at the end of the shaft and removing the small allen bolts does the S/C just seperate or is the bearing pressed into the outer housing?
Old Mar 12, 2008 | 07:40 PM
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When you seperate the housing the impeller bearing is pressed in. The impeller shaft is pressed into that bearing though so when you open it up its going to split the bearing most likely and you will need a new one. The seal in the blowers that TRD is warrantying out as far as I know is the exact same as the one currently in there. Its just a matter of time before it goes. Mine went after 25k miles, others have gone in as little as 5k like in your case.
Old Mar 12, 2008 | 10:48 PM
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damn only 5k on it. after iread this i checked mine and it is leaking. i only have 1k on it. now i need to know everthing i have to replace at once.
Old Mar 13, 2008 | 04:33 AM
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any pics on where its leaking?



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