06 evo 9. Should I be checking my cars acd fluid when the car is hot or when it is cooled and the fluid goes back into the resvior ?

 

when you start the car the pump will start and pump up... then check.. do not fill over max as it will leak out when you shut the car down and fluid drains back up..

 

KIKITurbo:

You are wrong......

Fluid level should sit at MAX when the pump has no Pressure built up, so best is to check it when the car was sitting over night. ( new pumps can be that good that they may not loose all pressure over night )

The Mitsubishi MUTiii Fluid lever check release all pressure from the pump.

When the pump has full pressure the level will sit app. 1/2 inch below min.

 

the way I do it and the way I wrote it you always have fluid at max level.. and nothing bad can happen..

if you keep the fluid below min level as you suggest, and at 1/2 inch below min you are allready at the mesh filter level, you do risk getting air in the pump...

also, I am not wrong because even mitsubishi instruct that the oil level should be checked with the pump running and have the level between min and max and NOT below Min with the pump running..

btw, fluid getting back to the reservoar has absolutly nothing to do with the condition of the pump but with the condition of the valves..

 

should i call you "Trump"

Its not true what you are writing... Period

I had some of these "Croatia Revised" pumps in some some customer cars...they leaked over the check valve below the "Disk", beside some other Problems like mostly destroyed centre sections...

I have repaired more that 500 ACD Pumps since 2006 here in Germany and none of my pups have ever failed again. I can do the dismantle ( also when ALL 4 Screws completly Corroded in the body ) without removing any material at the Centre section... so more like minimally invasive surgery... so they seal much better after repair...

I also using the right Disk from an spechial aluminium and do the cleaning by glass bead blasting...

If you fill higher than MAX Level without Pressure built up ( it doesnt matter if its 1/8 inch over MAX, thats save ) it can happen that under Round Racing conditions the fluid expands so much that the cap could not hold it inside. Makes a real mess...

Filling with pressure build up from the pump to the MAX will be close to the Cap when pressure is released when cold ....be careful

The volume the pump sucks in isnt that much that the level can go much lower as i described ...its simply limited by the Bulb volume and the pressure its build up ( its app 1 1/2 inch difference between no pressure and maximum sucked in from the pump )

SO... its simply not needed to overfill.

Not always more is better......

But anybody can choose freely what he wants to do... I am filling all my Customers Evos and also my own DD´s to the max line, after doing the MUT 3 Fluid level check... since 2004
... because it works ( Phrase borrowed from David Buschur )

 

I love the debate we have going on here but lets please keep it professional. It seems the two of you are both well versed on the ACD units and its OK to be in a disagreement about something; after all that is part of what these forums are all about.

At the end of the day this isnt rocket science. Primarily you wanna make sure the pump doesnt go dry and introduce air into the system. On top of that since the level changes you wanna make sure the fluid doesnt push out the top. As long as both of those things arent happening then does it really matter how you get there?

Personally, I relocated my pump to my trunk and because of that I had to trim the two rubber hoses that hold the reservoir. Because I did that I lost a little bit of volume so I have to fill mine over the max line or else once the fluid gets sucked up it'll go too low and Im concerned about running it dry.

 

no it is not rocket science.. it is just a point of having fluid above min when running and that is all I wrote.. this is especially true for US pumps that have much shorter hoses between fluid tank and pump...

I am also moving mine to the trunk, as I think I had enough salt testing allready..

as for "Croatia Revised" pumps, I am not sure what you are getting at..

BTW, stainless steel plates work just fine..