Question for those using Magnuson SC reservoir

IneedAZ · 02-07-2021, 01:05 PM

Is there a gasket or oring under your cap? Looks like a gasket is supposed to be there but mine doesn't. Is it a source of leakage? I have noticed I have to keep topping off the fluid level but dont see any leaks at the fittings or Hoses..

MartinLe · 02-07-2021, 02:07 PM

Sorry about the pics. This is a pic of my Cordes expansion tank. I do have an oring on the cap. You would think that since this is a closed system, there would have to be an oring on the cap. I don't think differences in manufacturer should matter.

scantone · 02-07-2021, 04:00 PM

Quote:

Originally Posted by IneedAZ

Is there a gasket or oring under your cap? Looks like a gasket is supposed to be there but mine doesn't. Is it a source of leakage? I have noticed I have to keep topping off the fluid level but dont see any leaks at the fittings or Hoses..

The cap that came with my kit has a gray gasket on the expansion cap
https://photos.app.goo.gl/aP652GyAxPvymvJW9

IneedAZ · 02-07-2021, 04:19 PM

Quote:

Originally Posted by scantone

The cap that came with my kit has a gray gasket on the expansion cap
https://photos.app.goo.gl/aP652GyAxPvymvJW9

Ok, so nothing between the tabs and outer edge. To me it looks like a gasket would fit in the flat area. Now to figure where I'm loosing fluid from.. I have topped it off 4 times past 200 miles.

IneedAZ · 02-07-2021, 04:21 PM

Quote:

Originally Posted by MartinLe

Sorry about the pics. This is a pic of my Cordes expansion tank. I do have an oring on the cap. You would think that since this is a closed system, there would have to be an oring on the cap. I don't think differences in manufacturer should matter.

Thanks for the reply as well

LiqTenExp · 02-07-2021, 04:59 PM

I think we spoke in another thread. One of my SC bricks was leaking and got replaced. Kept running out of coolant.

https://www.camaro6.com/forums/showthread.php?t=584754

https://www.camaro6.com/forums/showp...57&postcount=5

IneedAZ · 02-07-2021, 05:27 PM

Quote:

Originally Posted by LiqTenExp

I think we spoke in another thread. One of my SC bricks was leaking and got replaced. Kept running out of coolant.

https://www.camaro6.com/forums/showthread.php?t=584754

https://www.camaro6.com/forums/showp...57&postcount=5

Was the coolant shucked into the engine?

Stephen12ZL1 · 02-07-2021, 06:29 PM

I used this one on the magnuson reservoir:

Scottyz · 02-07-2021, 06:32 PM

Quote:

Originally Posted by LiqTenExp

I think we spoke in another thread. One of my SC bricks was leaking and got replaced. Kept running out of coolant.

https://www.camaro6.com/forums/showthread.php?t=584754

https://www.camaro6.com/forums/showp...57&postcount=5

Did the coolant somehow mix with the oil at all?

LiqTenExp · 02-07-2021, 06:49 PM

Quote:

Originally Posted by IneedAZ

Was the coolant shucked into the engine?

Yes sir. I confirmed it with a pressure test and then further confirmed by looking at 02 Sensor on that side, had some white residue.

LiqTenExp · 02-07-2021, 06:50 PM

Quote:

Originally Posted by Scottyz

Did the coolant somehow mix with the oil at all?

Not sure how this is possible...The intercoolers on these cars are air to water. Just got sucked right into the air intake runner.

*radz28* · 02-07-2021, 07:42 PM

I'm pretty sure mine did, but it's under a bit of pressue.

FWIW - 2300 and 2650 intercoolers are different. I'm not suggesting it couldn't happen with a 2650, but they are different.

Scottyz · 02-08-2021, 12:41 AM

Quote:

Originally Posted by LiqTenExp

Not sure how this is possible...The intercoolers on these cars are air to water. Just got sucked right into the air intake runner.

Thanks. Wasn’t 100% sure if it was possible. I figured the coolant was inhaled by the runner but figured I’d ask.

laynlo15 · 02-08-2021, 08:03 AM

I don't think there has ever been a gasket inside the cap. So your not seeing any coolant under the car anywhere? Its rare to see one of the bricks leak but it can happen. Where the hose go into the front of the brick thru the housing there are 2 O rings if I remember correctly on the 2650. The fittings on the 2300 are a little different. So on the 2650 its possible to pinch one of the O Rings on the fitting that attaches to the brick. I actually pinched one myself and coolant leaked into the cylinder and I had that blower off 1/2 dozen times but got in a hurry and didn't get the O Ring lubed up enough before I inserted the fitting in the brick. Caught it without any damage because I always turned the motor over without the spark plugs in to make sure everything was good and it was pumping coolant out of number 2 cylinder on the passenger side. I would doubt its leaking out of the cap. Check to make sure there are no cracks in the reservoir itself as I seen those crack but that would be rare also.

02-07-2021, 01:05 PM	#1
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	Question for those using Magnuson SC reservoir Is there a gasket or oring under your cap? Looks like a gasket is supposed to be there but mine doesn't. Is it a source of leakage? I have noticed I have to keep topping off the fluid level but dont see any leaks at the fittings or Hoses.. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

02-07-2021, 02:07 PM	#2
MartinLe Drives: 2017 Chevrolet Camaro ZL1 M6 Join Date: Jul 2020 Location: OR Posts: 479	Sorry about the pics. This is a pic of my Cordes expansion tank. I do have an oring on the cap. You would think that since this is a closed system, there would have to be an oring on the cap. I don't think differences in manufacturer should matter. Attached Images

02-07-2021, 04:59 PM	#6
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	I think we spoke in another thread. One of my SC bricks was leaking and got replaced. Kept running out of coolant. https://www.camaro6.com/forums/showthread.php?t=584754 https://www.camaro6.com/forums/showp...57&postcount=5 __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

02-07-2021, 06:29 PM	#8
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	I used this one on the magnuson reservoir: Attached Images __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

02-07-2021, 07:42 PM	#12
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,201 View My Garage	I'm pretty sure mine did, but it's under a bit of pressue. FWIW - 2300 and 2650 intercoolers are different. I'm not suggesting it couldn't happen with a 2650, but they are different. __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

02-08-2021, 08:03 AM	#14
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	I don't think there has ever been a gasket inside the cap. So your not seeing any coolant under the car anywhere? Its rare to see one of the bricks leak but it can happen. Where the hose go into the front of the brick thru the housing there are 2 O rings if I remember correctly on the 2650. The fittings on the 2300 are a little different. So on the 2650 its possible to pinch one of the O Rings on the fitting that attaches to the brick. I actually pinched one myself and coolant leaked into the cylinder and I had that blower off 1/2 dozen times but got in a hurry and didn't get the O Ring lubed up enough before I inserted the fitting in the brick. Caught it without any damage because I always turned the motor over without the spark plugs in to make sure everything was good and it was pumping coolant out of number 2 cylinder on the passenger side. I would doubt its leaking out of the cap. Check to make sure there are no cracks in the reservoir itself as I seen those crack but that would be rare also. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

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