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Car Forum / Nissan / Nissan Cars / October 2005Nissan Kingcab 1990
Cooling system not circulating. Recent repairs include new rad, new water pump, new thermostat, machined head and gasket set. Engine had been overheated prior to repairs, believe to have been caused by this problem. Any suggestions would be appreciated. how about the condition of the fan clutch (for the cooling fan)? has anyone bothered to see if it's any good or not? > Cooling system not circulating. Recent repairs include new rad, new water > pump, new thermostat, machined head and gasket set. Engine had been > overheated prior to repairs, believe to have been caused by this problem. > Any suggestions would be appreciated. > Cooling system not circulating. Recent repairs include new rad, new water > pump, new thermostat, machined head and gasket set. Engine had been > overheated prior to repairs, believe to have been caused by this problem. > Any suggestions would be appreciated. Bad or backward thermostat? Take it out just for the heck of it and see? >> Cooling system not circulating. Recent repairs include new rad, new water >> pump, new thermostat, machined head and gasket set. Engine had been >> overheated prior to repairs, believe to have been caused by this problem. >> Any suggestions would be appreciated. >> >Bad or backward thermostat? Take it out just for the heck of it and see? yes check the thermostat! also was the work done at a Nissan dealer. many shops overlook the need to purge air out of the cooling system on Nissans. if you have a large air pocket you will not get proper flow. you can also do a flow test on the radiator it may be clogged. which engine do you have and what's the mileage Spat The work was done by myself as i do this kind of work as a side job.The engine is a 2.4L 4cyl. with 221000 kms.I bought the truck about 2 months ago so i dont know all the details about the overheating issue.The engine runs very nice and does not rattle or smoke,but the problem with the cooling system has me wondering if the block is cracked in or around the cylinder causing a compression leak into the system. > The work was done by myself as i do this kind of work as a side job.The > engine is a 2.4L 4cyl. with 221000 kms.I bought the truck about 2 months > ago so i dont know all the details about the overheating issue.The engine > runs very nice and does not rattle or smoke,but the problem with the > cooling system has me wondering if the block is cracked in or around the > cylinder causing a compression leak into the system. That should be easy enough to tell by either pressurizing the cooling system at the cap with a tester and checking for pressure degradation, or by pressurizing each cylinder one at time and looking for bubbles in the radiator. Are you 100% sure the thermostat is facing the correct direction and it is working? If not, and it's not too hard to remove, try taking it out just for the hell of it. >The work was done by myself as i do this kind of work as a side job.The >engine is a 2.4L 4cyl. with 221000 kms.I bought the truck about 2 months >ago so i dont know all the details about the overheating issue.The engine >runs very nice and does not rattle or smoke,but the problem with the >cooling system has me wondering if the block is cracked in or around the >cylinder causing a compression leak into the system. Ok do you have a cooling system tester? if you have a leak from a cylinder this will be easy to find with a pressure guage on the radiator and watch for an imeadiat rise in pressure from a cold start. if you do have a leak it would more likely be a head gasket though. Spat Hi, Had similar problem with different vehicle. Try replaceing rad cap. The cap is supposed to vent at a certain pressure. If the cap if defective it will not allow the system to vent properly when proper pressure is reached, then it would over heat. Though the rad cap failure is not common, it does happen more often than people think. Have the same model 89, and the head actually burnt away into the water jacket between cylinders 2 & 3. This caused the vehicle to burn AF and appeared as though I was driving a steem engine. I personally have another problem if you could help. Thanks |
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