stuu
Well-Known Member
Never go alone it ended up like 4-5miles of that getting further from the road, atleast with 2 motors if one sticks or failed your not strandedI see you took the precaution of having a rescue car escort you
Scotiawhiskers
Well-Known Member
Took Otto to Holmes Chapel and back, around 45 miles total. Nice and comfy, steady on the cruise control on the motorway back, smooth and torquey on the A roads down.
EAS compressor still making a lot of noise, suspect the mounts are shot and will change them soon.
Heating erratic - OK on the way there, coming back was boiling hot only, unless selected low, then cold only. And distribution seemed iffy. But then he is leaking and getting damp again so that won't help.
First 1/2 - 1 mile was stalling wen coming to a stop, after that was fine. Maybe I need to get him hot and ready for the open road, reset the adaptive values, and give him a decent run to sort that? Coming to a stop warm the idle drops to about 500rpm against load, pop into neutral and it pops straight up to 750-800 as it should.
Used wrong button and discovered the rear washer has, after 9 months, decided to work. Only dribbling but better than nothing.
Still got all the Nanocom documentation / guides to read.
EAS compressor still making a lot of noise, suspect the mounts are shot and will change them soon.
Heating erratic - OK on the way there, coming back was boiling hot only, unless selected low, then cold only. And distribution seemed iffy. But then he is leaking and getting damp again so that won't help.
First 1/2 - 1 mile was stalling wen coming to a stop, after that was fine. Maybe I need to get him hot and ready for the open road, reset the adaptive values, and give him a decent run to sort that? Coming to a stop warm the idle drops to about 500rpm against load, pop into neutral and it pops straight up to 750-800 as it should.
Used wrong button and discovered the rear washer has, after 9 months, decided to work. Only dribbling but better than nothing.
Still got all the Nanocom documentation / guides to read.
Datatek
Well-Known Member
A common problem with noise from the compressor is the EAS box resting on the inner wing. a few whacks on said inner wing with a soft faced hammer increases the clearance and stops the noise
Scotiawhiskers
Well-Known Member
There is space for the compressor to thrash about more than it ought on the mounts from the look of it. And the ones in the pump don't look like those on sites / videos online so I think they have been butchered / substituted / broken a bit.A common problem with noise from the compressor is the EAS box resting on the inner wing. a few whacks on said inner wing with a soft faced hammer increases the clearance and stops the noise
At least with the compressor piston / sleeve overhaul the actual mechanism runs quieter. And since the slow drop overnight is even I'm guessing that is a worn exhaust solenoid / valve that will sort with a valve block overhaul soon.
Datatek
Well-Known Member
10 to 15mm drop overnight is OK according to Land Rover
brianp38dse
Well-Known Member
The washers that hold the compressor down should be concave and fitted opposite, bottom one so it dishes down and top one dished up like a bowl and only just pinched little more the finger tight if thats any help.
Scotiawhiskers
Well-Known Member
Washers are the right way round, but the larger diameter sections of the rubber mounts looks to be missing. Then again pretty much nothing seems to have been changed in 25 years so not entirely surprising. At least the mounts are cheap and quick to do....
Jon Dor
Well-Known Member
Whenever I get together with my two daughters and grandkids, I get a supply of " ASDA Root Beer"...that's BRILLIANT for enormous burps after dinner!Worth a try
I remember back in the 1970's, McDonalds used to sell Root Beer.
Datatek
Well-Known Member
How cold?
Not sure precisely but cold to the touch
Datatek
Well-Known Member
A small difference in temperature between the coolant and ambient will cause air to escape or to be drawn in.
Just me being paranoid then
been thinking more on this, probably overthinking, will probably start a new fred when i have a moment...
casting my memory back to skool days and physics and chemistry lessons
2 things.. vapour pressure of water and solubility of oxygen in water and how both of these impact coolant system pressure.
mainly, as water temp rises, oxygen in the water is displaced. it can only go into the expansion tank as its a closed system, this happens fairly readily as the temperature increases.
as the system cools again, oxygen is re-absorbed. as the temperature and pressure reduce, this process slows. the surface area in the expansion tank vs total volume of water is quite small, limiting the absorption capability. this would present a small amount of excess pressure that has nowhere to go.
am i talking complete rubbish?
been thinking more on this, probably overthinking, will probably start a new fred when i have a moment...
casting my memory back to skool days and physics and chemistry lessons
2 things.. vapour pressure of water and solubility of oxygen in water and how both of these impact coolant system pressure.
mainly, as water temp rises, oxygen in the water is displaced. it can only go into the expansion tank as its a closed system, this happens fairly readily as the temperature increases.
as the system cools again, oxygen is re-absorbed. as the temperature and pressure reduce, this process slows. the surface area in the expansion tank vs total volume of water is quite small, limiting the absorption capability. this would present a small amount of excess pressure that has nowhere to go.
am i talking complete rubbish?
Sounds like rubbish to me. It is a closed system so if it goes back to same temperature it should have the same pressure once it reaches equilibrium. Of course, if it vents and then cools it may have a slight vacuum but I doubt it seals that well so even that will be lost before long or vapour will fill the gap.
It must take quite a while to reach equilibrium though, especially with fresh tap water which is full of oxygen?
Datatek
Well-Known Member
Sounds like a complicated answer to a simple problembeen thinking more on this, probably overthinking, will probably start a new fred when i have a moment...
casting my memory back to skool days and physics and chemistry lessons
2 things.. vapour pressure of water and solubility of oxygen in water and how both of these impact coolant system pressure.
mainly, as water temp rises, oxygen in the water is displaced. it can only go into the expansion tank as its a closed system, this happens fairly readily as the temperature increases.
as the system cools again, oxygen is re-absorbed. as the temperature and pressure reduce, this process slows. the surface area in the expansion tank vs total volume of water is quite small, limiting the absorption capability. this would present a small amount of excess pressure that has nowhere to go.
am i talking complete rubbish?
Boils out of a kettle pretty quick?
