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Old 01-12-2015, 05:37 PM
whitakerjii whitakerjii is offline
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Default 1992 3.0 leaking coolant from the rear of the engine

Bought another 92 ranger with a 3.0 motor in it. Guy said it overheated one day and he didn't have the energy to fix it. Towed it home and changed the oil (black, old, no water) checked the radiator, no coolant. Replaced the thermostat and RTV'd with a new gasket. Went to fill the radiator (after a flush) and coolant immediately began pouring from the rear of the engine/transmission, can't make out where its coming from. Is it the intake gasket? Engine does start, but runs a bit rough. Any help would be appreciated.
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Old 01-12-2015, 06:01 PM
GLH GLH is offline
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A freeze plug on the block maybe ?
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Old 01-12-2015, 08:36 PM
whitakerjii whitakerjii is offline
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Default Re: 1992 3.0 leaking coolant from the rear of the engine

Don't think so, its coming out of the slot between where the motor and tranny mate up. Freeze plugs are along the side of the block.
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Old 01-12-2015, 08:39 PM
ranger_ferd ranger_ferd is offline
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Quote:
Originally Posted by whitakerjii View Post
Don't think so, its coming out of the slot between where the motor and tranny mate up. Freeze plugs are along the side of the block.
I believe there are freeze plugs in the back of the block
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Old 01-19-2015, 06:50 AM
whitakerjii whitakerjii is offline
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Default Re: 1992 3.0 leaking coolant from the rear of the engine

Well, there were two freeze plugs on the back of the engine. One had a 3mm hole in it, decided to replace all of them and put in a new throw out bearing as I don't want to take this thing apart again for a while!
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Old 01-19-2015, 07:20 AM
KenHigg KenHigg is offline
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Default Re: 1992 3.0 leaking coolant from the rear of the engine

Curious how these went bad - Here's a view of 15 year old engine and they look brand new (on the outside )
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File Type: jpg 3_0 rear view.jpg (45.3 KB, 21 views)
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Old 01-20-2015, 06:35 AM
whitakerjii whitakerjii is offline
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Default Re: 1992 3.0 leaking coolant from the rear of the engine

The ones I replaced looked new on the outside as well. I suspect that at some point someone used radiator 'stop leak' on this motor (horrible idea btw) and I think that accelerates the corrosion somehow.
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File Type: jpg IMG_20150126_072518420_HDR[1].jpg (98.6 KB, 10 views)
File Type: jpg IMG_20150125_160757172[1].jpg (97.0 KB, 10 views)
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Last edited by whitakerjii; 01-26-2015 at 07:53 AM.
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