still overheating

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
N

n18rks

New Member
Posts
101
Location
Rayleigh, Essex
Hi,

Yr 2000 4.0ltr petrol - suffering from overheating probs

Had new head gasket
new o rings on matrix
new water pump
new radiator
new hoses
2 x new thermostats
new expansion vessel cap
checked,double checked,triple checked quadruple checks for air locks - all removed
new viscious fan
Condenser fans do work - ive seen them turning
No leaks


When she overheats shes loses of lots water from expansion tank, also noticed that hoses are pressurized and radiator still cold at bottom, thermostat definitely works as i tested it before i put it in.

suspect cracked block - anyone know somewhere in SE Essex where i can get the block pressure tested ? or any other ideas ?
 
n18rks said:
Hi,

Yr 2000 4.0ltr petrol - suffering from overheating probs

Had new head gasket
new o rings on matrix
new water pump
new radiator
new hoses
2 x new thermostats
new expansion vessel cap
checked,double checked,triple checked quadruple checks for air locks - all removed
new viscious fan
Condenser fans do work - ive seen them turning
No leaks


When she overheats shes loses of lots water from expansion tank, also noticed that hoses are pressurized and radiator still cold at bottom, thermostat definitely works as i tested it before i put it in.

suspect cracked block - anyone know somewhere in SE Essex where i can get the block pressure tested ? or any other ideas ?
Click to expand...


Duff rad, needs to be hot all over
Cracked liners if losing coolant
 
n18rks said:
New rad fitted 2 weeks ago - is the baffle vertical or horizontal ? and how do i test ?
Click to expand...

someone may know better but i think the trick is to put a marble or similar in top of rad-off the car- and see if you can roll the marble from one side to the other.If you can you have no baffle.No baffle=overheat ;)
 
You say hose Pressurising it has been know. For new cheap gaskets to fail not be fitted properly did you have heads skimmed as well
 
jt_armstrong said:
Your right. There is no baffle in the V8 radiator. Does sound like you still have an air lock as a new rad should have an even temperature from top to bottom.
Click to expand...

Should the temperature be gradually getting lower from top to bottom as antifreeze cools down?
 
heads skimmed when gasket replaced

radiator at top is almost too hot to touch, at bottom almost cold - cold on lower part of thermostat

no loss of coolant but when she overheats expansion vessel is under a lot of pressure. No smell of exhaust gasses in expansion vessel.

hot air coming through internal events

if liner has cracked then i should be losing coolant

even if liner is loose and causing extra friction heat under movement then why is radiator cold at lower half.

any ideas???
 
would have to be massive air lock - followed rave when filled

fitted new pump with metal impeller when gasket replaced

bottom hose off water floods out

erring on liner prob
 
You must log in or register to reply here.

Similar threads

T
HELP!!! engine overheating - at the end of my tether!
2 3
Replies
52
Views
4K
bendisco
B
J
300 tdi overheating...help!
2 3
Replies
56
Views
9K
jimleshed
J
S
Ran 300TDi low on coolant ~1300km
Replies
15
Views
2K
currymunster
currymunster
D
Help – Car Overheating, loss of power - 300tdi
Replies
5
Views
1K
kermit_rr
kermit_rr
madbrit
P38 v8 Petrol Overheating
6 7 8
Replies
141
Views
8K
Rubberknees
Rubberknees
Back
Top