water pump replacement on 4bd1

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Originally Posted by rar110

I did notice there was corroded bits/grains inside the old hose. Is this a sign of a problem. The motor was sitting for about 4 years without a radiator or coolant.

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It would be a good idea to fit a coolant filter (just the sock-type which fits into the top hose). You will be surprised at how much crap is in there. When you fit it, drive for about 100km and then take it out and clean it - will probably already be full.