tomcat59alan
Well-Known Member
Can you stop the fan with a rolled up newspaper when the engine is hot? Is you can it's knackered, sorry forgot your English isn't good ,it's fecked.
brianp38dse
Well-Known Member
Have you checked that the baffle in the top of the radiator is there, if you mate has a thermal camera you could check the top of the rad the battery side half should be colder than the EAS side.
RangeRoller dt
Well-Sprung Member
With engine off stick your arm down and see if there’s any play in the water pump. Shouldn’t wiggle. If plastic fins have started breaking up only one way to tell is pull it out. Not 5 minute job. If theres considerable movement In bearing it’s on its way out
Hills should be no trouble so something isn't right. Viscous fan, water pump, thermostat or radiator. Last resort, cracked head but don't get ahead of yourself: easy stuff first.
+1^
Hello again, i drove it up on a ramp and took off the bleed hose. Nothing came out by purely running it (i didnt wait for operating temp if that was needed)
So i reved it up to 2k and it began to look like something. It came out some brown old gunk, and when it was clear coolant xoming out a friend took the hose on again. There came bubbles in expansion tank when i bled it. I will see if it goes well on way home, theres a 4km 8%gradient hill straigth up (tunnel)
So i reved it up to 2k and it began to look like something. It came out some brown old gunk, and when it was clear coolant xoming out a friend took the hose on again. There came bubbles in expansion tank when i bled it. I will see if it goes well on way home, theres a 4km 8%gradient hill straigth up (tunnel)
Brown old gunk? That isn't right. Sounds like it needs a good flush. Someone put Radweld in it?
I have drained the radiator for 3-4 week ago atleast, so the gunk has definetly minimized. I think i will ask around for a infra red camera. I suppose this brown gunk might have blocked some parts in the radiator? Im glad i got parts of it out atleast but some came back into expansion tank.
maybe i should have a nice flush, water pump and thermostat change in the coming week. And check with infrared if rad is blockrd.
All the hoses is atleast warm so there is circulation and the engine warms up as it should.
maybe i should have a nice flush, water pump and thermostat change in the coming week. And check with infrared if rad is blockrd.
All the hoses is atleast warm so there is circulation and the engine warms up as it should.
Definitely flush. If you've got the rad out check the fins are clear of debris.
Make sure you use the right sort of antifreeze and don't mix them. Not a problem if you've done a decent flush. It should be the long life stuff.
tomcat59alan
Well-Known Member
If you've got the rad off then put a marble in one of the hose connections and see if it rolls along the top of the rad and comes out of the other,if it does your baffle is missing which will prevent proper liquid circulation.,make sure you get it out if it doesn't.give it a good flush inside and out.
Well, i did bleed it a certain amount, but how do i know its fully bled? Like, i didnt get any flow from the bleed when i disconnected it. I had to rev it to 2k, but do i need to perhaps wait for thermostat to open in order for it to flow out constantly? Because at first when i reved at 2k rpm a little bit came out, then more and more and then it turned constant, but if i dropped the rpm it idled it didnt come anything out. Ive began the last part of the journey and it didnt go up to red but when up a fair bit, just over a timespan of 20-30seconds going from middle to almost white towards red.
With no payload in car or behind car.
It happend uphill.
i suppose when i flush it i can just do what chris fix does in his video?
With no payload in car or behind car.
It happend uphill.
i suppose when i flush it i can just do what chris fix does in his video?
RangeRoller dt
Well-Sprung Member
Yes you need to fully warm it for the flow. If your thermostat is stuck shut won’t flow at all
brianp38dse
Well-Known Member
Its a lot easier with the fan off saves you catching the rad fins
okay, i will take it off then. is it easy or recommended to take off the top of radiator to clean the whole radiator? i suppose its blocked.
brianp38dse
Well-Known Member
You cant take the rad top off, you could try back flushing.
RangeRoller dt
Well-Sprung Member
Hardest bit will be if your vcu is stucked (LH thread).
Beware plastic top of radiator if engine is running. Have been known to blow.
Beware plastic top of radiator if engine is running. Have been known to blow.
tomcat59alan
Well-Known Member
Was that with cold, warm or hot engine?
