White stuff caked on inside of coolant hoses
#1
White stuff caked on inside of coolant hoses
So I replaced my coolant hoses today (kit from AB) and caked on the inside of the hoses nearest the water pump was this crusty white stuff. I have posted pictures below. Normally I wouldn't think too much of it but the Rover is pretty old (2002, 93K miles). Do you think this is anything to worry about?
Also I should mention the cooling system has been pretty neglected. When I flushed it a bunch of rust came out I am curious everyone's opinion about the state of my cooling system and if you think I should look into a new water pump, radiator, etc. I have not tested the radiator but there are a couple bent fins on the inside closest to the fan on the passenger side. I also think it may have been clogged as the system began to run better the more I flushed it; it could have been the placebo effect, though...
Thanks!
Also I should mention the cooling system has been pretty neglected. When I flushed it a bunch of rust came out I am curious everyone's opinion about the state of my cooling system and if you think I should look into a new water pump, radiator, etc. I have not tested the radiator but there are a couple bent fins on the inside closest to the fan on the passenger side. I also think it may have been clogged as the system began to run better the more I flushed it; it could have been the placebo effect, though...
Thanks!
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Good move changing to green. If your temps turn out to be high this should be your todo list should be
1. Replace the radiator (cant be rodded out or flushed, ask me how I know )
2. Get a 180 tstat.
3. Check the aux fan behind the front grill that it spins freely and comes on if the coolant temp is over 212.
1. Replace the radiator (cant be rodded out or flushed, ask me how I know )
2. Get a 180 tstat.
3. Check the aux fan behind the front grill that it spins freely and comes on if the coolant temp is over 212.
#5
It looks like someone has run hot with the system filled with very hard water and nothing else added, it reminds me of chalky (my lingo = calcaire) deposits. Alternatively someone has maybe put in the 'snake oil' magic leak sealants which maybe seals leaks but blocks up the radiator, heater matrix and waterways in the block. If it were me I wouldn't worry about antifreeze etc but stick in a 500mls of concentrate central heating cleaner/flusher (it dissolves chalk and cr@ap and is designed for a very similar environment to a car cooling system) mixed with DI water for a week or two whilst monitoring the coolant temperature carefully and then drain and pressure backflush the cooling system a few times and then add coolant antifreeze+inhibitor. Defo looks like some calcium build up in the system to me. Scrape some out and put it in a drinking glass with water and test the pH with a quality pH meter. I wouldn't mind a bet that it's way alkali above 7.0 (neutral) and probably around 14.0-15.0.
Rust is a very good indicator of no inhibitor in the coolant for years.
Rust is a very good indicator of no inhibitor in the coolant for years.
Last edited by OffroadFrance; 09-29-2014 at 06:59 PM.
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And just when I thought my Fall maintenance was coming to an end I received the car from my grandpa and I am pretty sure he only ever had it serviced at his local LR dealership. This disappoints me...
I will backflush it this weekend and treat it with a powerful cleaning agent. With respect to the "central heating cleaner/flush", how is something like that different than a radiator flush from an autoparts store? I found an example online: Fernox Central Heating Cleaner F3 500ml | Cleaner | Screwfix.com.
If in fact a stop-leak product was used, does that mean whoever worked on it before found a leak somewhere in my system? That would be just awesome.
I will backflush it this weekend and treat it with a powerful cleaning agent. With respect to the "central heating cleaner/flush", how is something like that different than a radiator flush from an autoparts store? I found an example online: Fernox Central Heating Cleaner F3 500ml | Cleaner | Screwfix.com.
If in fact a stop-leak product was used, does that mean whoever worked on it before found a leak somewhere in my system? That would be just awesome.