Topping up AYC

[pitslayer]

Check AYC fluid for the first time.......ever I think, doesnt seem to be much on the dip stick, do I just poor more oil into the reservoir?

did search, most info was on about using amsoil, or what oil

[bradc]

Yep, thats the procedure

[pitslayer]

cheers Brad :)

[thecustomer]

yeah, but to avoid overfill, do give the system time to depressurise, if you've had it on - half an hour, maybe

[vr4-fan]

my car turn on the AYC light , HAVE anoght oil , I dont undeerstand

[Ryan]

my car turn on the AYC light , HAVE anoght oil , I dont undeerstand

Perhaps you need to change the oil for new oil and see if the red light goes away?

[Subaru ETA]

change the oil. if that doesnt work its probably the pressure switch. but you knew that already obviously because you used the search function aye

[vr4-fan]

Perhaps you need to change the oil for new oil and see if the red light goes away?


how many quarts of amsoil I need?

[Subaru ETA]

are you going to attempted to change the hydrolic fluid yourself?

[bradc]

2 in total for the entire diff and hydraulic line

[Subaru ETA]

vr4-fan...maybe you should become a member? here is the article
http://www.clubvr4.com/forum/showthread.php?t=23948

[vr4-fan]

2 in total for the entire diff and hydraulic line


thanks brad , I going to order 2 quart tomorrow for change that oil reair in the back

[vr4-fan]

are you going to attempted to change the hydrolic fluid yourself?


no dude , i dont know how do that , but look easy

[SiliconAngel]

Its not... Don't get me wrong, its certainly doable, but compared with changing your engine oil it definitely ain't easy. On a par with bleeding brakes if you had to do that whilst driving the car...

[Turbo_Steve]

I think you should try it without reading the article!
New diffs aren't that expensive after all :D :D :D

[chris g]

Do we do quarts in the UK now...?

I miss the third of a pint of milk that we got at school...

[vr4-fan]

Do we do quarts in the UK now...?

I miss the third of a pint of milk that we got at school...


in UK not , but here dominican republic yes QUARTS = 947ml

[chris g]

To top-up AYC, get AYC dipstick in left hand, container of AYC fluid in right hand..

Pour AYC fluid slowly down the dipstick, using it as an easy guide into the AYC orifice - do this until required amount has been added to AYC system










Well at least that's how I think of it being done - HTH

[PaddyB]

Do we do quarts in the UK now...?

I miss the third of a pint of milk that we got at school...

I always thought it was 1/2 a pint - that's what happens when you believe teachers & dads. I remember in summer it was always warm :sick:

[chris g]

And summer holidays lasted a - g - e -s....

[nabassu]

hello mates!
this is my first post. i'm from Polish VR-4 owners, and i want to ask, how to, um.. de-oxide the AYC? (fluid have air in it).
result is, that the pump is takeing so much electricity, that the every light in the car dimms in every 2-3 second. but only while driveing.
even my stereo is turning itself off.
It's very annoying, because the car has black-out while driveing several times! black dash, engine off! driveing 100km/h...
today i've unplugged the AYC fuse, and the battery icon stoped flashing, so i thing this is it.
can you help? please.
regards

[bradc]

'bleed' is the correct english term. It is a fairly complicated task unfortunately. Running the pump with air in the system isn't a good thing and shouldn't be done for very long at all.

Search for bleed and ayc and a few things will pop up.

[nabassu]

thank you very much!
my mechanic said, that this is not a big deal, only the noys :/ done 6k km like that

[amsoil]

Hi, Nabassu, best thing you can do as a VR4 owner is to join this club. These cars are not so straight forward and the knowledge base here will save you time and money. The discount you will get for the fluids that are tried and tested will also more than pay for the membership.
But above all enjoy!

[vr4-fan]

hi , the ayc oil where ist locate ?? I confuse , because in the truck in right hand , have somethink with oil , somebody can help me with that???

[Kenneth]

vr4-fan

There is AYC fluid in 2 separate parts of the AYC diff.

1) Actuation fluid - this is in the hydraulic circuit. The reservoir in the boot is for this circuit.

2) Clutch pack fluid. This is in the diff itself and must be drained and re-filled from the drain/filler plugs in the diff respectively.

There is a guide in the members area which gives you the instructions for this if you wish to save yourself some time.

[vr4-fan]

vr4-fan

There is AYC fluid in 2 separate parts of the AYC diff.

1) Actuation fluid - this is in the hydraulic circuit. The reservoir in the boot is for this circuit.

2) Clutch pack fluid. This is in the diff itself and must be drained and re-filled from the drain/filler plugs in the diff respectively.

There is a guide in the members area which gives you the instructions for this if you wish to save yourself some time.


ok , but which I have to check when the red light turn on??? the oil in the diff right hand??

[chris g]

vr4-fan....

Join the club - pay money - get ALL the resources and info you need...

[Subaru ETA]

at the risk of being called names again id say that chris has given you some pretty sound advise there.....we pay the membership fee to have access to this information. we cant be expected to copy and paste everything into the general forum from the articles!

what does the oil look like in the boot?

[chris g]

? where isa the boot...?

[Subaru ETA]

lol...you know, the thing at the opposite end from the bonnet :p

i was refering to the actuation fluid in the reservoir

[chris g]

Sorry, acting dumb, supposed to be humour...

Membership is definitely the best way to deal with unfamiliarity, uncertainty and irritating reptitive questions...

[vr4-fan]

I want be a member , but dont have the money in this moment :(


its not reptitive question , I never do this question , :( I only know where is locate the oil for change , i dont want to brake diffs

[chris g]

How many moments have you been asking questions....?

Quite a few and for quite a while...?

[vr4-fan]

ok , dont worry

[Turbo_Steve]

VR4-Fan,

No one is saying because it is difficult.
Even long-time mechanics have some trouble with AYC diff the first time.

You need an oil pump to get the fluid in.

It takes different fluids in different parts of the diff.

The guide is about 3 pages long. Nobody wants to copy that, and all the photos, just for you, when you should have joined 3 months ago.

If you can't afford membership, then to be honest you can't afford a VR4:
They are VERY expensive to run.

[miller]

VERY true Steve.

[vr4-fan]

hi people I do the check , and the oil ayc its complete and good , I dont understand why turon on AYC red light

[elnevio]

hi people I do the check , and the oil ayc its complete and good , I dont understand why turon on AYC red light
Is that the one in the boot (trunk)? Because you need to check the ATF fluid in the AYC part of the diff itself. The one in the boot is for the AYC actuators and does not get stressed. The ATF in the diff DOES get very stressed, and will degrade quicker.

If that ATF is no good, then change it, but it is not simply a case of draining the ATF off and refilling it, as there is still ATF in the pump, so it has to be pumped out, while being refilled. Do not let the pump run dry, as it will die. There is a guide in the members' area on how to do this properly...

If changing the ATF hasn't worked, then it is likely that your AYC pump is getting tired. If you replace the AYC pump, it will probably cost you up to $3,500 for a new one! However, the easiest thing to do is just renew the AYC pressure switch, and one of our members, 'MPBVR4', who is a hydraulics specialist, sells them, and it should (I think) cost you less than $100, and almost certainly solve the problem.

[vr4-fan]

Is that the one in the boot (trunk)? Because you need to check the ATF fluid in the AYC part of the diff itself. The one in the boot is for the AYC actuators and does not get stressed. The ATF in the diff DOES get very stressed, and will degrade quicker.

If that ATF is no good, then change it, but it is not simply a case of draining the ATF off and refilling it, as there is still ATF in the pump, so it has to be pumped out, while being refilled. Do not let the pump run dry, as it will die. There is a guide in the members' area on how to do this properly...

If changing the ATF hasn't worked, then it is likely that your AYC pump is getting tired. If you replace the AYC pump, it will probably cost you up to $3,500 for a new one! However, the easiest thing to do is just renew the AYC pressure switch, and one of our members, 'MPBVR4', who is a hydraulics specialist, sells them, and it should (I think) cost you less than $100, and almost certainly solve the problem.


wow nev , thanks you very much dude :) :) :) my mechanick check the oil and have enough , but look brown , I going to change , he change to evos , and he told me that ist the same diff , I going to change , and if still turn me on the light going to send mp to MPBVR4 :)

:) :) thanks

[vr4-fan]

if I still run with the AYC on , can broke the difff??

[Turbo_Steve]

IF the fluid is brown, driving the car is bad.