Engine Drivetrain 1st Gen Cooper S Most liked posts in thread: Coolant expansion tank options?

The RMW tank is a perfect fit. Look at one Mark posted. The rear side outlet on the canton will not fit without being modified.

Hint the RMW one has a has a right angle welded in for a reason.

Also the rad cap comes with the RMW tank.

I am am going to put this pit in the open buy saying if you don't like Jan and RMW for whatever reason I don't care. The fact is the part is tested and known to fit. If you don't want to buy the know to fit perfectly and function and tested part don't.

 

:cornut: WOW!!! 30 posts on an overflow tank and coolant pressure cap. I can't wait for something controversial to come along.:lol::lol::lol:

Jason

 

Unfortunately "need to read again" and "will read again" are not one in the same.

 

Yup we already have the best looking, most powerful, most FUN to drive and reliable MINI's made so what else is left?

:lol::lol::cornut:

 

You mean you didn't get your expansion tank tuned? It works wonders--didn't get a ton of HP, maybe 80 WHP or so, but it really smoothed out the torque curve, not to mention the flux capacitor is running much cooler now.

 

Yeah but if you squeeze the valve stems forcefully enough you raise that A-flat a full octave.

 

RMW has a really nice one. You won't find it on their website, you have to call.

 

Yes call Jan at RMW, they build an aluminum tank with a "REAL" pressure cap.

Dial 949-456-9590 and tell him I sent ya!:thumbup:

 

Yep, RMW if I was going aftermarket.

Odd, though, that your replacement burst... my original is still going strong at 136k miles. I wonder if you've got something else going on...

Did you replace your cap too, when you replaced your tank?

 

Here is a link to a Canton tank with normal radiator pressure cap:
Canton Aluminum Expansion Tanks for Mini Cooper

 

+1.


Buy the summit tank, and try to fit it in...Let us know how that goes for ya!:wink:

I'll give you a hint: Look at the nozzle on the box.

You could probably make the summit box fit with a little DIY, and still end up a little cheaper. But the RMW one already fits perfectly. You can get the "plain" box from RMW cheaper, but the coated one looks nicer.

 

The Canton tank was around before the RMW.

I've had a Forge tank since 2007. Yeah, it leaks some from the cap. I gave up on trying to keep it polished looking a long long time ago.

 

I even ran my OEM on the low side at the track and it still overflowed under the hood, leaving me with a bit of a mess to clean up afterwards. If you soccer mom drive your Mini the OEM may never give you much trouble, on the other hand, if you "use" your Mini and want to fix the tank problem one time and forget it, buy the RMW.

I've always been partial to fixing something once myself.

 

Never had mine overflow on the track or on a back road flog either. When mine breaks I'll look into an RMW one. Not spending the $$$ until I have to. Doing it before seems justa waste to me. :biggrin5:

How's that Jason? :ihih:

 

Well I keep my engine bay somewhat clean. The issue is that when the coolant leaks out it bakes on to the tank. Good luck and have fun polishing that out.

 

Ok you all know I am OCD about keeping my stuff clean so you should have expected I would have an answer for keeping the coolest tank clean. It is really not hard to do when you have a real tank and Rad cap that does not leak.

I know a guy that has a "working" and "show" 10 wheel dump truck with lots and LOTS of chrome. Being his daily driving work truck it takes a beating but it always look great.
I asked him what he used for all the chrome and and I have been using it ever since.
This stuff just plain works and is very easy to use.

I use Purple Polish on anything chrome including my coolest tank, exhaust tips and even my Milltek mufflers. (Yup I polish mufflers on jack stands) you can use the polish by itself but if something is stained you can wipe on the deoxidizer and then purple polish it.

Purple Metal Polish/deoxidizer Combo : Amazon.com : Automotive

 

Loving the tool handle look. Sweet......... :ihih:

 

Bump.....

 

Wow...like three threads going right now on this.......so this is what 1st gen, "tuning and modifications", has come to, coolant expansion tanks. Lol!