Water Bubbling In Overflow Bottle

Suspect79 · Postby **Suspect79** » October 21st, 2011, 2:59 pm

Mazda BJ, when the engine is running i noticed the water bubbling in the overflow bottle, can anyone tell me the reason for this ????

nareshseep · Postby **nareshseep** » October 21st, 2011, 3:03 pm

From experience it can be a faulty radiator cap, or thermostat may be sticking.
That caused me to blow my top tank on the radiator.
Change both and see if it helps.

BTW I have a stant thermostat for sale PM me for details.

nareshseep · Postby **nareshseep** » October 21st, 2011, 3:06 pm

mods please move to the Mazda forum

KIRAN-TEK · Postby **KIRAN-TEK** » October 21st, 2011, 5:53 pm

head gasket blow near combustion chamber.....are you loosing water???

Suspect79 · Postby **Suspect79** » October 21st, 2011, 8:05 pm

KIRAN-TEK , im losing water in the overflow but thats because of the boiling of the water or so i think ....

KIRAN-TEK · Postby **KIRAN-TEK** » October 21st, 2011, 10:09 pm

i had the same problem with my engine, head gasket give out....it happens, with the age of vehicles. a new head gasket an ur good to go..... if ur mech tell u buy a head an block cuss him... but i suggest u dont stick get it repaired....

krazykidzkrew · Postby **krazykidzkrew** » October 22nd, 2011, 1:32 pm

check the water hoses in the back of the engine, also water jackets 2 see if ur losing water there, and is ur fans coming on in time? also could be the thermostat

Suspect79 · Postby **Suspect79** » October 24th, 2011, 8:23 pm

thanks for all the advice, now for an update, i changed the radiator cap from the standard .9 rated to a 1.1, i havent seen any sign of the bubbling water in the overflow, but i now notice steam or smoke coming from the area of the alternator after driving for about 45mins.,.,.,the fans come on an i believe the thermostat is ok

nareshseep · Postby **nareshseep** » October 25th, 2011, 3:51 pm

Did you check the thermostat to see if it is working? To test simply take it out and put it in a pot of a boiling water, and see if it opens

Suspect79 · Postby **Suspect79** » October 27th, 2011, 2:17 pm

i was informed if the thermostat wasnt working, the temp guage would go up quickly from a cold start

nareshseep · Postby **nareshseep** » October 27th, 2011, 11:44 pm

waits patiently...

RubenN · Postby **RubenN** » January 17th, 2012, 5:23 pm

do you get a funny smell?
u need to check your cooling fan?
as well as sometimes it could be the radiator need flushing.....

Groovemaster · Postby **Groovemaster** » January 17th, 2012, 6:54 pm

Dude check them water jackets at the back of the engine block

black start · Postby **black start** » January 18th, 2012, 8:10 am

sheep, like the man fraid to check the thermostat owa?

lenzomaru · Postby **lenzomaru** » January 18th, 2012, 3:18 pm

have the same problem with my mazda 323 lx , driving it so for 2 yrs now, and nutting ever happen, well atleast not yet..lol

nareshseep · Postby **nareshseep** » January 18th, 2012, 4:17 pm

losing water + no leaks = head gasket has a hole

also if pressure is not holding, the water will boil= reduction in cooling
therfore engine is overheating, but temp stays the same, overheating can occur if you run no thermostat

http://home.centurytel.net/bbyrd2100/Bl ... Gasket.htm