wile e coyote Posted June 30, 2014 Share Posted June 30, 2014 As chris says Barney Brendan has just recently had a problem very similar and turned out to be the core plug on back of pump, very small leak Find his thread Quote Link to comment Share on other sites More sharing options...
brom86 Posted June 30, 2014 Author Share Posted June 30, 2014 Av been watching that thread only thing is am not over heating, on the gauge it's perfect, half way after warm up and doesn't move Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted June 30, 2014 Share Posted June 30, 2014 Ok well when they do thermostat get them to have good look around there as it's easyer with that off Quote Link to comment Share on other sites More sharing options...
brom86 Posted June 30, 2014 Author Share Posted June 30, 2014 Ok will do and is it just a gasket or something? Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted June 30, 2014 Share Posted June 30, 2014 If you ask Brendan he can tell think he got part numbers Quote Link to comment Share on other sites More sharing options...
brom86 Posted July 11, 2014 Author Share Posted July 11, 2014 Well got a new thermostat but am still getting bubbling in the expansion tank when a run the car hard. Got new rad cap too. What else could be causing this? Quote Link to comment Share on other sites More sharing options...
LOGIE Posted July 11, 2014 Share Posted July 11, 2014 Has the engine had any internal work done recently? I remember reading somewhere about a member with similar problems turns out a gasket had been put it in incorrectly (the gasket looked symmetrical) so a small water channel had been bloked by the gasket. Quote Link to comment Share on other sites More sharing options...
brom86 Posted July 12, 2014 Author Share Posted July 12, 2014 Na not had any work from what av been told and the last owner seems a genuine guy and supra enthusiast on here. Am assuming bubbling coolant in expansion tank is defo not a common thing or normal thing? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 12, 2014 Share Posted July 12, 2014 After 58 posts on this I would say it's time to get a decent garage to look at it if you are sure something is actually wrong. It can only be nucleate boiling or gasses in the coolant. So the gas has to be steam or combustion products. Quote Link to comment Share on other sites More sharing options...
brom86 Posted July 13, 2014 Author Share Posted July 13, 2014 Well drove home from work at 2 am and no bubbling at all. Am convinced it's not combustion gases. All the tell tell signs for it aren't there and sniff test showed that too. Am going to try a new rad see what happens as am getting one at a good price. Searched for bubbling on here and someone changed the rad and it worked so here's hoping it's that. Or again seen as it didn't bubble at 2 am it may now be ok or nothing haha Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 13, 2014 Share Posted July 13, 2014 I would doubt it needs a new rad. But who knows, I am also of the age where I am none too bubbly at 2.0AM Quote Link to comment Share on other sites More sharing options...
brom86 Posted August 3, 2014 Author Share Posted August 3, 2014 (edited) Well before a take it to a garage that costs a fortune to see what's up with the car I took it to a garage that my mate works in and they changed the rad over for a second hand one. Great condition as mine was shot. New cap fitted also that a got from toyota. When a picked it up they said it's still bubbling in the expansion tank so they are leaning towards the cylinder head even though the sniff test cam back nothing. But av been driving it since then and done about 100 miles. Am not loosing coolant and not over heating. Don't have the bubbling in the expansion tank either. Am hoping that this problem had been resolved but still thinking my luck it's not. When car is up to temp and driving hardish for 10-15 miles. When park car up the top rad hose is hard and warm. Warm a would expect but should it be solid? Also should the expansion tank have coolant in it all the time? Edited August 3, 2014 by brom86 (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 3, 2014 Share Posted August 3, 2014 I think a stock caps vents at about 0.7 Bar, so that's 10 PSI. Ten pounds per square inch will make the rad hoses feel pretty solid. All sounds OK to me, I'd just take it on a fairly decent run and see what happens (500 miles or so round trip when you need to go somewhere a bit away from home). Until then you'll never know. Quote Link to comment Share on other sites More sharing options...
brom86 Posted August 3, 2014 Author Share Posted August 3, 2014 Why will a need to do that? Don't think I'll be going that far soon, plus if it goes pop am stranded haha Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 3, 2014 Share Posted August 3, 2014 Well a few hundred miles in a tight radius around your house is a bit wasteful of fuel and boring, you might as well burn the fuel doing something useful or necessary... And having a car you never trust is a bit pointless, so you need to see if it behaves over a medium length journey to have confidence in it. I am not suggesting you drive across the USSR in it just yet! Quote Link to comment Share on other sites More sharing options...
Guest Roger NE Posted August 3, 2014 Share Posted August 3, 2014 It depends what you mean by "bubbling in the expansion tank" If it's a small amount of coolant coming from the radiator to the expansion tank when it's very hot, that is normal. Your expansion tank should be about half full - if the pressure gets a bit high in the coolant, the rad cap opens and allows fluid to flow into the tank - when it cools, it draws the coolant back into the radiator. That's how it's designed to work. HOWEVER - if you have coolant really GUSHING into the expansion tank, then that sounds like a leaking Head Gasket. A sniff test would normally prove that too (ie exhaust gases in the coolant). But you would see it yourself too if you do this test: When the engine is fairly cool, remove the rad cap. Make sure the radiator is full to the brim. Run the engine and let it warm up to normal temperature. If you now rev it while watching the top of the radiator, are you seeing lots of air bubbles at the top? If so, that normally means BHG. (that is presuming you have already got the air out of your heater - you use the same technique, but turn the heater full on and keep squeezing the hose that goes to the heater, and you'll see bubbles coming out the top of the rad until all the air is out of the heater matrix) Quote Link to comment Share on other sites More sharing options...
Dnk Posted August 3, 2014 Share Posted August 3, 2014 Join the AA or take someone with you thats a member with recovery level of cover Quote Link to comment Share on other sites More sharing options...
brom86 Posted August 3, 2014 Author Share Posted August 3, 2014 I'll check the reving thing later or tomorrow and ill give the car a good run as well see how a get on. Am hoping that the HG is fine lol Quote Link to comment Share on other sites More sharing options...
brom86 Posted August 18, 2014 Author Share Posted August 18, 2014 Though would update this thread to finish it off. After shiting myself for ages thinking a may have blew the HG a changed the rad which was badly damaged and since then it has ran perfect! Changed the thermostat which a didn't need however least it's now done haha. So happy happy! Quote Link to comment Share on other sites More sharing options...
Dnk Posted August 18, 2014 Share Posted August 18, 2014 Good news if the new rad has fixed the problem Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.