ESS G1 Supercharger Blowing Oil Out of Breather

Joshbot007 · 04-25-2023, 05:10 PM

So ever since I got my G1 kit I have had a problem where the blower blows oil out of the breather bolt and onto the blower and hood. I originally thought and it was suggested by ESS that I may have over filled the blower but I have under a half a bottle in the blower and it reads good on the dipstick ( I think, the stick is incredibly hard to read). ESS sent me a new breather and I was told that there was a "redesign" to the internal workings of it but I didn't get a chance to test that last season.

At the beginning of this season I drain and changed the oil on the blower. I took the car out for a hard drive and it is still blowing oil all over the place. Any one else have a similar experience with their G1 blower?

Thanks

Soden82 · 04-25-2023, 05:57 PM

I have the G1 and notice that I get oil sometimes sitting on the breather and around the black piece where the belt sits (forget the name of the part). Nothing on the hood though.

The PO swapped the oil out a few years ago and I plan to do it next year for the first time.

Soden82 · 04-25-2023, 08:13 PM

Going to ask a dumb question. There should be some oil on the breather occasionally correct? I’m guessing it’s intent is to let out some oil/vapors during normal heating cycles.

On the same note, the breather should be snug on the supercharger correct?

SAMM3Y · 04-26-2023, 08:34 AM

Disappointing to hear.. I was under the impression ESS were trying to adress this issue as the vortech head unit spews oil too. I make a diaper out of a cheap kitchen sponge and foil tape to prevent a smelly bay before every HPE. I check the oil, the dipstick on the vortech is a piece of crap too. A catch can isn't impossible but with placement, there isn't a ton of room, ideally you'd want it as high as possible, like what other forum members do with the PS resevoir, that's what I'd imagine

Joshbot007 · 04-26-2023, 09:20 AM

while its reassuring to hear that others have this problem as it likely means nothing strange is going on with mine, it is still disappointing to hear.

I believe the oil to be coming out of the breather hole on the breather and not around the treads and O-ring so I doubt a copper washer will change anything.

I don't want to change the topic here but does anyone else think that the dipstick for the g1 is incredibly hard to read? If full, I can see where the oil touched the "cut down" part of the stick but it only appears to read half full as the oil slid downwards, therefor telling me the oil did touch the cut down part but is reading lower. I tried sanding the stick with rough grit sandpaper to try to get the oil to stay at whatever level it dipped into the blower with but that didn't seem to help much. Next step is designing a new dipsticks on my own I guess out of another material. I tried dipping a back zip tie into the oil and that seems to hold the oil at the level it was dipped while being easy to read so maybe I will come up with a plastic dipstick design idk.

04-25-2023, 05:10 PM	#1
Joshbot007 Second Lieutenant 55 Rep 236 Posts Drives: 2013 Frozen Blue M3 Join Date: Mar 2018 Location: Hershey PA iTrader: (0)	ESS G1 Supercharger Blowing Oil Out of Breather So ever since I got my G1 kit I have had a problem where the blower blows oil out of the breather bolt and onto the blower and hood. I originally thought and it was suggested by ESS that I may have over filled the blower but I have under a half a bottle in the blower and it reads good on the dipstick ( I think, the stick is incredibly hard to read). ESS sent me a new breather and I was told that there was a "redesign" to the internal workings of it but I didn't get a chance to test that last season. At the beginning of this season I drain and changed the oil on the blower. I took the car out for a hard drive and it is still blowing oil all over the place. Any one else have a similar experience with their G1 blower? Thanks Attached Images
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04-25-2023, 05:57 PM	#2
Soden82 Major 479 Rep 1,196 Posts Drives: 2011 BMW M3 Join Date: Jun 2017 Location: Boston iTrader: (1) Garage List 2011 BMW M3 [0.00]	I have the G1 and notice that I get oil sometimes sitting on the breather and around the black piece where the belt sits (forget the name of the part). Nothing on the hood though. The PO swapped the oil out a few years ago and I plan to do it next year for the first time. __________________ 2009 BMW 335i 6MT big single (eventually) For now... MHD tuned VRSF Race IC DCI ATM exhaust
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04-25-2023, 08:13 PM	#3
Soden82 Major 479 Rep 1,196 Posts Drives: 2011 BMW M3 Join Date: Jun 2017 Location: Boston iTrader: (1) Garage List 2011 BMW M3 [0.00]	Going to ask a dumb question. There should be some oil on the breather occasionally correct? I’m guessing it’s intent is to let out some oil/vapors during normal heating cycles. On the same note, the breather should be snug on the supercharger correct? __________________ 2009 BMW 335i 6MT big single (eventually) For now... MHD tuned VRSF Race IC DCI ATM exhaust
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04-26-2023, 08:34 AM	#4
SAMM3Y Colonel 3085 Rep 2,747 Posts Drives: 2008 m3 Join Date: Feb 2018 Location: NorCal iTrader: (2)	Disappointing to hear.. I was under the impression ESS were trying to adress this issue as the vortech head unit spews oil too. I make a diaper out of a cheap kitchen sponge and foil tape to prevent a smelly bay before every HPE. I check the oil, the dipstick on the vortech is a piece of crap too. A catch can isn't impossible but with placement, there isn't a ton of room, ideally you'd want it as high as possible, like what other forum members do with the PS resevoir, that's what I'd imagine __________________ 9ers
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04-26-2023, 09:20 AM	#5
Joshbot007 Second Lieutenant 55 Rep 236 Posts Drives: 2013 Frozen Blue M3 Join Date: Mar 2018 Location: Hershey PA iTrader: (0)	while its reassuring to hear that others have this problem as it likely means nothing strange is going on with mine, it is still disappointing to hear. I believe the oil to be coming out of the breather hole on the breather and not around the treads and O-ring so I doubt a copper washer will change anything. I don't want to change the topic here but does anyone else think that the dipstick for the g1 is incredibly hard to read? If full, I can see where the oil touched the "cut down" part of the stick but it only appears to read half full as the oil slid downwards, therefor telling me the oil did touch the cut down part but is reading lower. I tried sanding the stick with rough grit sandpaper to try to get the oil to stay at whatever level it dipped into the blower with but that didn't seem to help much. Next step is designing a new dipsticks on my own I guess out of another material. I tried dipping a back zip tie into the oil and that seems to hold the oil at the level it was dipped while being easy to read so maybe I will come up with a plastic dipstick design idk.
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