cja_y60
1st September 2010, 12:17 PM
Hi All
I’ve just joined and this is my first post on the Nissan Patrol forum
Recently my wife and son (who’s on L’s) took my old 93 GQ ST wag (TB42E) for a burble around the back of the range near home. My son was driving (lucky me) and noticed that temp gauge was way up where it shouldn’t be!! They pulled over, let it cool and put about 4 - 5 lts of water in, then drove back home with out drama.. On looking over the engine I found that a couple of those small Welch plugs down near the lower edge of the TB42 block had corroded through (exhaust manifold side). Not happy with myself for missing that one, all of the other Welch plugs look fine and I’ve always used good coolant. The radiator, thermostat and all hoses were replaced in 2008 and I check levels regularly.
Not sure as to the extent of any damage but I’m planning on pulling the engine out now as the rest of the Welch plugs will need changing. The head needs to come off too as there was a leak at the front near the thermo housing / mating surface but it’s gone now (not enough pressure I guess)? May be cracked as well? Motor has done 350,000 Km’s and it’s mated to a 4 Speed Electronic Auto (yes it’s a softy)..
Getting a plan of attack together now so any advice would be appreciated. :)
Chris
I’ve just joined and this is my first post on the Nissan Patrol forum
Recently my wife and son (who’s on L’s) took my old 93 GQ ST wag (TB42E) for a burble around the back of the range near home. My son was driving (lucky me) and noticed that temp gauge was way up where it shouldn’t be!! They pulled over, let it cool and put about 4 - 5 lts of water in, then drove back home with out drama.. On looking over the engine I found that a couple of those small Welch plugs down near the lower edge of the TB42 block had corroded through (exhaust manifold side). Not happy with myself for missing that one, all of the other Welch plugs look fine and I’ve always used good coolant. The radiator, thermostat and all hoses were replaced in 2008 and I check levels regularly.
Not sure as to the extent of any damage but I’m planning on pulling the engine out now as the rest of the Welch plugs will need changing. The head needs to come off too as there was a leak at the front near the thermo housing / mating surface but it’s gone now (not enough pressure I guess)? May be cracked as well? Motor has done 350,000 Km’s and it’s mated to a 4 Speed Electronic Auto (yes it’s a softy)..
Getting a plan of attack together now so any advice would be appreciated. :)
Chris