should i change headgasket? // problems in the future if i do not // videos
hi guys,
I'll jump right into it:
My micra k10 '86 1.0L with 222222,2 km done last week has problems.. again..
Maybe some of you remember my thread with distributor - stuttering under high load. I've replaced HT leads, checked coil, altered dizzy's timing, cleaned carb, replaced air hoses, tried Velfobin (water displacer) in fuel.. everything helped for a short time..
Now I regularly experience small, and big problem.
Small: When I am running low on fuel, engine runs great, nearly no misfiring. After topping the tank off, it sucks. Stuttering under load, sudden misfiring (it comes and goes randomly, lifting foot from pedal for a sec usually helps). What a hell? Fuel pump? Fuel filter is new.
Theoretically i could disconnect the pipe behind fuel pump and look if it pumps fuel when i crank the engine.
Large: I experience nearly same problem as john279 with cooling water.
http://www.micra.org.uk/showthread.php?t=23776
Month ago i've replaced the water in cooling system. It was brown, smelly. But not oily-smelly, i can't describe it.. it is strong, pungent.. i have no problems with nearly sniffing oil, but this smell is disgusting..
I fill the reservoir tank to Max line. Radiator is topped with water. When i look into the tank after few days, it is usually empty, or near empty.
Today it was empty. I've filled it to the max line. Started the engine, waiting for the temp gauge to go to the 1/3. (it never overheats, not even while driving up the hill on 2nd gear full throttle for a few minutes)
-after few minutes i noticed small increase in reservoir..
-opened the reservoir cap and slammed the throttle lever on carb to bring it to 3000rpm and quickly returned to idle.. the level in tank went down 5mm and back
-while keeping the engine on 1500-2000rpm, i noticed stable decreasing of the level, maybe 1mm/10sec
-turned off the engine, reservoir started filling with water.. fast.. when it was closing to the open cap, i started the engine again.. water level came down very quickly, it was under max....
-shut engine down, water level stayed a little bit over max
- i assume that if I let the water leave the tank through the pipe in cap and returned tomorrow morning, the tank would be near empty, or at the min level.. few days ago i turned the "toomuchwater" pipe at the water/mud deflector at the bottom and it is wet almost every time
-sometimes when i stop the engine, i hear strong bubbling from engine.. another blown headgasket symptome?
Oil level is high, if min=0 max=1, it is at 1.5.. oil itself looks, hmm, oily.. it is not milky (no dilution with water), but it is a bit dark.. i want to replace it and oil filter tomorrow.. i bought the car with that much oil in it but did not get to check what's wrong..
So, few questions:
1 Is it blown headgasket?
2 where does the water go? in a piston?
3 why does it overflow when i stop the engine, and where do the bubbles come from?
4 can i diagnose it by opening radiator cap and cranking engine? if water bursts out, houston we have a problem? (the big pipes are hot, but not very hard - if there is pressure, i doubt that there will be much of it)
5 can i diagnose it by running the engine with one of the spark plugs out and looking through hole for water?
6 does that cause misfiring?
7 what if i dont replace the gasket and let it be?
thank you all
hi guys,
I'll jump right into it:
My micra k10 '86 1.0L with 222222,2 km done last week has problems.. again..
Maybe some of you remember my thread with distributor - stuttering under high load. I've replaced HT leads, checked coil, altered dizzy's timing, cleaned carb, replaced air hoses, tried Velfobin (water displacer) in fuel.. everything helped for a short time..
Now I regularly experience small, and big problem.
Small: When I am running low on fuel, engine runs great, nearly no misfiring. After topping the tank off, it sucks. Stuttering under load, sudden misfiring (it comes and goes randomly, lifting foot from pedal for a sec usually helps). What a hell? Fuel pump? Fuel filter is new.
Theoretically i could disconnect the pipe behind fuel pump and look if it pumps fuel when i crank the engine.
Large: I experience nearly same problem as john279 with cooling water.
http://www.micra.org.uk/showthread.php?t=23776
Month ago i've replaced the water in cooling system. It was brown, smelly. But not oily-smelly, i can't describe it.. it is strong, pungent.. i have no problems with nearly sniffing oil, but this smell is disgusting..
I fill the reservoir tank to Max line. Radiator is topped with water. When i look into the tank after few days, it is usually empty, or near empty.
Today it was empty. I've filled it to the max line. Started the engine, waiting for the temp gauge to go to the 1/3. (it never overheats, not even while driving up the hill on 2nd gear full throttle for a few minutes)
-after few minutes i noticed small increase in reservoir..
-opened the reservoir cap and slammed the throttle lever on carb to bring it to 3000rpm and quickly returned to idle.. the level in tank went down 5mm and back
-while keeping the engine on 1500-2000rpm, i noticed stable decreasing of the level, maybe 1mm/10sec
-turned off the engine, reservoir started filling with water.. fast.. when it was closing to the open cap, i started the engine again.. water level came down very quickly, it was under max....
-shut engine down, water level stayed a little bit over max
- i assume that if I let the water leave the tank through the pipe in cap and returned tomorrow morning, the tank would be near empty, or at the min level.. few days ago i turned the "toomuchwater" pipe at the water/mud deflector at the bottom and it is wet almost every time
-sometimes when i stop the engine, i hear strong bubbling from engine.. another blown headgasket symptome?
Oil level is high, if min=0 max=1, it is at 1.5.. oil itself looks, hmm, oily.. it is not milky (no dilution with water), but it is a bit dark.. i want to replace it and oil filter tomorrow.. i bought the car with that much oil in it but did not get to check what's wrong..
So, few questions:
1 Is it blown headgasket?
2 where does the water go? in a piston?
3 why does it overflow when i stop the engine, and where do the bubbles come from?
4 can i diagnose it by opening radiator cap and cranking engine? if water bursts out, houston we have a problem? (the big pipes are hot, but not very hard - if there is pressure, i doubt that there will be much of it)
5 can i diagnose it by running the engine with one of the spark plugs out and looking through hole for water?
6 does that cause misfiring?
7 what if i dont replace the gasket and let it be?
thank you all