|| So no-one thinks it could be a blocked rad then?
|| I don't think there will be a problem with the water pump - I got it
|| from a reputable motor factors in the UK and I think they wouldnt
|| sell many if they did not work. I am going to try flushing out the
|| system with a hose next, maybe take off the rad and have a look and
|| then start filling as per tim's advice - I don't think it is head
|| gasket as there is plentty of power there! - It IS a high mileage
Out of curiosity Paul, how did the original water pump fail, did it
disintegrate and what were the symptoms?
|| p.s. thanks for help so far
|| Tim.. wrote:
|||||| Well - I posted the other day re my water pump falure and
|||||| subsequent refitting and then overheating problems.
|||||| I drained the coolant again today and re-filled using the Haynes
|||||| Manual Method (fill up via heater inlet hose and then via header
|||||| tank, run engine until warm and then keep an eye on header tank)
|||||| still overheating. The heater hose that runs across the front of
|||||| the engine got warm but the radiator hoses remained cool. I
|||||| decided it must be the thermostat - unlikely, but worth a try.
|||||| I got a new thermostat and fitted it and thgen filled the system
|||||| using Tim's advice, fast tickover, very slow fill via header
|||||| tank. I thought it was better but no, when I took it out it
|||||| started to overheat again. When I got back I ran the engine in
|||||| its hot state (it only gets in the red when under load) and felt
|||||| the rad pipes. The one on the side nearest the thermostat was
|||||| stone cold, the one the other side was a bit warm but the
|||||| radiator was stone cold. It seems there is no flow at all - any
|||||| ideas on what I am doing wrong here? - Could it be a blocked
|||||| radiator core?
||||| Something is seriously amiss here- these are generally not prone
||||| to airlocking unless you fill them very quickly.
||||| What water pump did you fit ???
||||| It sounds to me like the new pump is faulty and there is no
||||| circulation at
||||| Does the heater give full output?
||||| .- Hide quoted text -
||||| - Show quoted text -
|||| The pump fitted was a pattern part but it does work - I put my
|||| finger inside the block where the thermostat housing is (with the
|||| housing removed) and could feel the pump imellor rotating as I
|||| turned the pulley (which incidently is being turned properly by
|||| the drive belt).
|||| I wonder if it is the rad that is blocked as when I first drained
|||| the system the fluid was very dark and soiled - now it drains out
|||| fine. Either that or some flukey thermostat problem - I might
|||| remove it and see if the water flows ok.
|||| The heater gives full output and the tube across the front is hot
|||| as well, the return from the heater to the thermostat housing
|||| which maybe suggests that the thermostat works - what do you think?
||| To be honest.... I'm baffled!!
||| All I can suggest is you once again slowly refill it with the
||| engine at fast tickover through the heater hose / expansion tank
||| and with as many hoses slack to try and purge the airlock you seem
||| to have!