Guys help radiator flush solution not finshing in cooling system of cultus

[xain10]

GUYS today i performed a flush on my cultus carby radiator with ready made "pyro radiator flush" the problem is that the flush solution is not leaving the engine block my mechanic flushed the system with water at least 7-8 x times but stilll WHITE MILKY water is coming out of the cooling system upper hose plz help ...my mechanic failed to clear out this problem and have parked my car back so the solution is still in the car he advises me to go to the service station and ask them to push in the pressured water into the radiator and start the car that will help pull out the trapped acid or flush sol. guysss plzzzz help @umarkhan1 @Xulfiqar @smijaz

[omarabdullah022]

Okay.
Go to someone with a nice pressure washer.
Remove both the hose pipes and remove t stat valve
Flush water two-four times both ways.
Rinse radiator
Add coolant and reinstall the thermostat valve.

[xain10]

if i remove both hoses in which inlet should i push in pressured water the upper one is easily accesible can opening just one hose do the job

[omarabdullah022]

Do it both ways. From under and from up.

[umarkhan1]

your car has t-valve installed???

[xain10]

your car has t-valve installed???

nope and fan is also direct but i am planning to install it once cooling system is properly flushed and add coolant but first i need to clear this mess ASAP

[xain10]

nope and fan is also direct but i am planning to install it once cooling system is properly flushed and add coolant but first i need to clear this mess ASAP

bump guys plz help i guess its not safe for the car to hold the acidic flush for longer time in engine it might cause problems

[umarkhan1]

bump guys plz help i guess its not safe for the car to hold the acidic flush for longer time in engine it might cause problems

remove the t-valve and radi hoses and start to add water from the upper side hose into the engine till you see clear water.then reinstall t-valve and radiator and fill it up with caltex coolant with 60-40 ratio.

[whiteangel]

There's a bolt usually in the engine block that is used to drain coolant from the block.

[xain10]

There's a bolt usually in the engine block that is used to drain coolant from the block.

any idea whether that bolt is present in cultus carby or not and if present then where coz even the radiator does not have a drain nut there is a plug attached to it with no handles :frown:
p.s. pictorial explanation would be really helpful

[xain10]

remove the t-valve and radi hoses and start to add water from the upper side hose into the engine till you see clear water.then reinstall t-valve and radiator and fill it up with caltex coolant with 60-40 ratio.

as written in first post have done that but still mliky white water emerges what if i add baking soda that will help it neutralize the acidity i suppose but still problem would remain that that soda will form more precipitate which also might be unending
also i observed that when i start the engine with rad cap open bubbles are formed in radiator my mech says its weak gasket issue
but i think that it can be stuck air right ???

[spectra]

Do a reverse flush with pressure. Draining water repeatedly does not clear it. You can put in coolant even like this, it will dilute the remaining acid effect.

[whiteangel]

any idea whether that bolt is present in cultus carby or not and if present then where coz even the radiator does not have a drain nut there is a plug attached to it with no handles :frown:
p.s. pictorial explanation would be really helpful

It should be there somewhere around the block. Reference pic is below from a different engine

[smijaz]

As you have stated the t-valve is absent so after the pyro acid flushing
1. remove the hose pipe from top of radiator which is bringing water from the block to radiator.
2. Put a fresh water hosepipe in the radiator and start the engine.
3. The pump will start throwing out water from the upper hose and fresh water will replace it.
4. Shutdown the engine.
5. Put the radiator hose back on and throw in few table spoons of baking soda in the radiator.
6. Run the engine for 5 minutes.
7. Repeat step 1-4
After that put any good coolant in the system.

[smijaz]

as written in first post have done that but still mliky white water emerges what if i add baking soda that will help it neutralize the acidity i suppose but still problem would remain that that soda will form more precipitate which also might be unending
also i observed that when i start the engine with rad cap open bubbles are formed in radiator my mech says its weak gasket issue
but i think that it can be stuck air right ???

Bubble in the radiator after draining or flushing is usually trapped air in the system and partially blocked radiator lines

[omarabdullah022]

No.
Dont ever use baking soda. It can cause scaling.
Add cheap red guard cool ant ad that will neutralize the acid.
After one week, drain that and fill with diluted caltex coolant.

Sent from my A5Classic using PW Forums mobile app

[Xulfiqar]

The baking soda is required to neutrailize the acidic content of the flush,

Firstly ensure the white milky stuff is not slimy (if it is then you have a headgasket issue) - if its not slimy then attach a low pressure water pipe to the engine with the engine dead cold and slowly reverse flush. Your engine has no block drain bolt so dont waste your time trying to find it.

The plain water flush will remove all the flush liquid - water should not be brackish - it should be fresh water.

Now take a blower and use it to push out the remaining water in the block. Install T stat then add coolant/water mix.

If you dont have a blower, then instead of premixing coolant to 50:50 - you need a 60:40 mix - 60% coolant to mix with water already in the block.

[xain10]

remove the t-valve and radi hoses and start to add water from the upper side hose into the engine till you see clear water.then reinstall t-valve and radiator and fill it up with caltex coolant with 60-40 ratio.

Do a reverse flush with pressure. Draining water repeatedly does not clear it. You can put in coolant even like this, it will dilute the remaining acid effect.

As you have stated the t-valve is absent so after the pyro acid flushing
1. remove the hose pipe from top of radiator which is bringing water from the block to radiator.
2. Put a fresh water hosepipe in the radiator and start the engine.
3. The pump will start throwing out water from the upper hose and fresh water will replace it.
4. Shutdown the engine.
5. Put the radiator hose back on and throw in few table spoons of baking soda in the radiator.
6. Run the engine for 5 minutes.
7. Repeat step 1-4
After that put any good coolant in the system.

[QUOTE=Xulfiqar;4324656]The baking soda is required to neutrailize the acidic content of the flush,

Firstly ensure the white milky stuff is not slimy (if it is then you have a headgasket issue) - if its not slimy then attach a low pressure water pipe to the engine with the engine dead cold and slowly reverse flush. Your engine has no block drain bolt so dont waste your time trying to find it.

The plain water flush will remove all the flush liquid - water should not be brackish - it should be fresh water.

Now take a blower and use it to push out the remaining water in the block. Install T stat then add coolant/water mix.

If you dont have a blower, then instead of premixing coolant to 50:50 - you need a 60:40 mix - 60% coolant to mix with water already in the block.[/QUOTE @xulfiqar
1.its not slimy and the car does not consume motor oil so i guess head gasket pretty much ruled out and bubbles can be stuck air
2.the water in rad is getting blackish and acidic smell so i do need to add soda but wont that create further mess and how much cultus full water body has 4 liter capacity i suppose so wat volume to weight ratio
3.Unlucky me i don't have MEETHA pani at home i have a slighly brackish water bore but theres a service station in 1 km radius i guess i can drive to that much distance the engine wont have warmed up much
hope em right
4.i can ask service station guy to blow pressurised air in upper inlet of engine maybe that clears it up

[Xulfiqar]

never ever try to flush with well or brackish water. If you can still smell the acid then you need the soda to neutralize it. Use a 5% solution and fill it up then let the engine idle for 10 minutes and drain it out.

Flush with warm water if the engine is hot. If the engine is cold then flush with cold water.

[umarkhan1]

what is the current situation of your radiator???attach some pics