Dear supra members, Some of you know I'm involved in rebuilding quiet a few 7Mz for supra/cressida owners. Up to now, I have yet to have one of my engines fail. After about 60 or so 7M rebuilds, today I have a customer bring a car back to me.
So here's the story, this is a 92 Cressida I fully rebuilt about a year ago. Top to bottom, with new pistons, rings, full head work, full block work, new gasket set. It was a humming machine, flawless in rythm. about 2 months ago the owner called me and said the car had been smoking a little after about 10K miles, and he said the performance on the car was really really poor. I told him bring it by, let me look at it. Well I didn't hear back from him for a while and then one day he just called me and said the car's been dead for few weeks now and if He could tow it to my place. I said yeah bring it. So the car arrives at my place on a flatbed.
The battery was totally dead. First thing first, I check the oil in the engine. The dipstick was Almost filled 1/2 way :icon_surp . I'm like how much oil did you put in this thing? He said, I didn't put any oil in, Jiffy Lube changes my oil. I'm like dude there's way too much oil in this thing, and the oil was milky so we had water mixing into the oil.
So Infront of him, I drain 2 5qt buckets of milkshake from this guys oilpan, and the dip stick was still just a little more then full. I'm like dude we have a serious problem here. after that I tried cranking the car and the engine just sounded wierd. sounded like a 7M with a almost dead battery, yet the battery was brand new. I turned it by hand/socket wrench and I can hear the internals squeeking. So today we pulled this engine out, and man o man what a mess it is. Now bare in mind, this engine has 10K or so miles on it since the rebuild.
When water is coming out of your exhaust, and your intake runners, its never a good idea, so too much oil, HG goes, water/oil start to mix, pistons swole up, rust started jamming a bunch of parts.
So here's the story, this is a 92 Cressida I fully rebuilt about a year ago. Top to bottom, with new pistons, rings, full head work, full block work, new gasket set. It was a humming machine, flawless in rythm. about 2 months ago the owner called me and said the car had been smoking a little after about 10K miles, and he said the performance on the car was really really poor. I told him bring it by, let me look at it. Well I didn't hear back from him for a while and then one day he just called me and said the car's been dead for few weeks now and if He could tow it to my place. I said yeah bring it. So the car arrives at my place on a flatbed.
The battery was totally dead. First thing first, I check the oil in the engine. The dipstick was Almost filled 1/2 way :icon_surp . I'm like how much oil did you put in this thing? He said, I didn't put any oil in, Jiffy Lube changes my oil. I'm like dude there's way too much oil in this thing, and the oil was milky so we had water mixing into the oil.
So Infront of him, I drain 2 5qt buckets of milkshake from this guys oilpan, and the dip stick was still just a little more then full. I'm like dude we have a serious problem here. after that I tried cranking the car and the engine just sounded wierd. sounded like a 7M with a almost dead battery, yet the battery was brand new. I turned it by hand/socket wrench and I can hear the internals squeeking. So today we pulled this engine out, and man o man what a mess it is. Now bare in mind, this engine has 10K or so miles on it since the rebuild.
When water is coming out of your exhaust, and your intake runners, its never a good idea, so too much oil, HG goes, water/oil start to mix, pistons swole up, rust started jamming a bunch of parts.
