Over heating / clogged heater-radiator cores / cracked heads/ blown head gaskets

[Stodart]

If the recommendations in the owners manual were followed ie flush cooling/heating system every 2 years, most of these issues would disappear

[Joker]

needs more info

sounds like your talking to your self!

I saw you have a good method under another post somewhere

[Stodart]

yep for sure, l'm probably am going on a bit, sorry, :-[

subarus are prone to this and it upsets me to see so many come an early end because of this.

l am speaking from experience having 2 out of the 5 subarus that l've owned with cooling system issues ie in particular a 10 year old 86 leone with 200k overheating with clogged/scaled heater core leaking on floor and radiator 85% blocked as well which had to be rodded out, managed to save it along with iron tight a chemi weld in the cooling system to fix heads/gaskets? as it was consuming water out exhaust. that car ran for another 13 years and 160k with no problems.

All that is required is to flush out the whole cooling/heating system every 2 years, is to remove radiator hoses, drains for each cylinder bank, heater control on "hot" to flush its core, a garden hose will suffice, care in refilling for airlocks.

l promise not to say anything more about this unless asked :-

[Joker]

locations for these drains?

[Stodart]

underneath block, one for each cylinder bank they can be impossible to remove if corroded in couldn't remove ones on my brumby so left and flushed as best l could with radiator hoses off.

ea engines have a bolt plug ej engines have a larger plug with a recessed hex drive.

if can remove plug may need to use a piece of wire /pointed object to break " corrosion " thats formed there to drain cylinder banks.

[CUDDAS]

Thanks for the maintenance tips

[DRFVDR]

one point,it does not make a difference as to the position of the heater switch as it does not operate a valve of any sort in the heater hoses....

[Guest]

 Stodart said:

underneath block, one for each cylinder bank they can be impossible to remove if corroded in couldn't remove ones on my brumby so left and flushed as best l could with radiator hoses off.

ea engines have a bolt plug ej engines have a larger plug with a recessed hex drive.

if can remove plug may need to use a piece of wire /pointed object to break " corrosion " thats formed there to drain cylinder banks.

any chance of a pic at all? this seems very interesting and a hell of a lot easier

[Stodart]

yep will do pics and {we are borg} yes you're right forgot head controls are on air flow (my paranoia to have everything open for flushing)

[Stodart]

12mm bolt plug drain on bottom of heads, one side in front of exhaust manifold, and the other side behind manifold this one difficult to get at coz of maniflold etc so use a good quality ring spanner/socket as they will be tight corroded in. this picture was of brumby (ea81) ea82 are similar from memory? bolt drain above exhaust manifold in pic.

these two pics following are of drains on ej25, am assuming they're the same on all ej engines:

ones next to oil filter and others next themostat housing and both at the front both with internal hex drives and much easier to get at, depending on car may need to remove splash covers 1st to expose.

[Stodart]

Found an interesting article that backs up what l've been saying including, regular servicing and electolysis of/in cooling system by faults in the electrical system.

http://allwheeldriveauto.com/subaru-head-gasket-problems-explained/