So much for your head gasket theory. I have a 1990 3.0 L 3vze Toy pickup that I purchased brand new in 1990. It blew the head gasket within 2 years. No mechanic had ever touched it prior. It was replaced under warranty and has been fine ever since. It is now 2020 and 155,000 miles later with no problems.
Damn you all are going really hard on this guy. Turbo the world!! Yeah so I just recently bought my fourth Toyota 3vze. This one I bought from a lady that had bought it brand new in 1990, with all records. It was like $13,000 brand new haha. Anyway she had the head gasket redone at 155k. It now currently has 299k on the original 3vze. Sat for 2 years, I did a tune up, straight pipe exhaust. This thing runs really strong! I do need to adjust the valves. I love it. Everyone talks down on the 3.slow, but for some reason I love the motor. I want to build a bulletproof 3vze just to see what I can get out of it. A turbo would be awesome, but I know that Toyota in 95 started putting a supercharger on the 3.4L. I am curious as to if I could find a supercharger for the 3.0.
Damn you all are going really hard on this guy. Turbo the world!! Yeah so I just recently bought my fourth Toyota 3vze. This one I bought from a lady that had bought it brand new in 1990, with all records. It was like $13,000 brand new haha. Anyway she had the head gasket redone at 155k. It now currently has 299k on the original 3vze. Sat for 2 years, I did a tune up, straight pipe exhaust. This thing runs really strong! I do need to adjust the valves. I love it. Everyone talks down on the 3.slow, but for some reason I love the motor. I want to build a bulletproof 3vze just to see what I can get out of it. A turbo would be awesome, but I know that Toyota in 95 started putting a supercharger on the 3.4L. I am curious as to if I could find a supercharger for the 3.0.
Ever find one? I'm thinking Paxton . With a A/C clutch and a either switched or automatic supercharger bypass . Have a real Mad Max style Blower Switch on the gearshift . Also ad a Vac pump and res tank . Super Glue the vac hoses !
I like how he kept the turbo specs top secret. Gotta keep those serious no prep drag racing secrets quiet. God Speed box in the same frame, love this guy 😆 🤣 😂
the brake booster vacuum line doesn't need to be moved, it has a one way check valve to prevent vacuum from escaping or letting atmospheric pressure from going in.
drilling a bigger hole on the turbo oil fitting will result in a loss of engine oil pressure to the engine since it will flow into the area of least resistance which is the turbo. that is why the engine seized up.
Fuel pump through a toggle switch is a bit hazardous in the case of an accident since it'll cheerfully keep pumping fuel onto the fire after the engine quits. But if you get a "battery isolator" like is used for letting your truck charge your camper battery without letting the camper run down your truck battery the camper side will run the fuel pump quite nicely whenever the engine is running and then you just use the toggle switch to prime the system for starting.
Yep if you don't miss with the head gasket than it's never a problem. My 97 T100 SR5 4x4 3.4l 5VZFE never been replace be4 since it was first released. Got it at 35,xxx miles and now it's 27x,xxx miles from the day I bought it. It's almost 20years and still no issued at all
Toyota actually admitted the 3VZE had a head gasket issue, that's why they issued a mass recall for the engine and replaced the head gaskets for free. Do all of them have issues ? Nope. But enough of them did to prompt the recall. The Issue ? Dissimilar metals on the block and the head caused shearing on the inferior gasket material. The fix ? modern MLS head gaskets are a drop in 100% solution
I just bought my first 4runner (1994) on July 13 2018 and have been a bit concerned about the head gasket issue. I've been reading up for hours and this explanation is the best I've heard so far. Thanks !
"it dosen't matter how this all looks its under my hood nobody will see this" as u film it and post video to RU-vid... dude c'mon an oil cooler is a cooler because it dissipates heat, the turbo is powered by exhaust gas and thus builds heat, oil circulates and gathers heat while lubricating moving parts. i appreciate your ambition but for the mechanical hackary you perform you could spend alot less money on parts. so keep up the good work, rubber side down
What kind of power did you get? Cool build!! Also yeah, I think just paying attention to temp and maintaining properly. You won't blow a head gasket if you don't let the temp go nuts as well as throwing cold water in when its hot. And then there is the removal of the thermostat when having a radiator coolant issue. That covers every engine.
There is a port for an optional oil cooler that looks like a hockey puck on the passenger side. Also you can get an adapter to run lines off the oil filter.
I have always wondered what these engines would be like with a turbo. I too have a t100 with the 3vzfe(with 200k+ miles) and it runs perfect! Not a head gasket issue in sight. It seems the people who have problems with them don't maintain them properly. which is not that hard.. Its a Toyota engine after all.
Lots of recommendations if you ever DO decide to. Like #1: Dont. or #2, if you do, Rebuild the engine 1st, with Lots of New and Freshly cleaned high quality parts.
youre not serious? you do know why the head gasketrs fail right? the exhaust that gets routed around the back heats up the gaskets and causes them to fail. so if you have low mileage, or just run it at low temps, or even just have a heat shield on your exhaust crossover, youll never see an issue
The reason the headgaskets blow is because of the exhaust cross over pipe getting hot on the driver side right behind the head, notorious spot for exhaust leaks, where they come together.
The exhaust goes behind the motor close to the intake manifold, and it gets hot. That is why they blow head gaskets. It puts extra heat on the 2 rear cylinder's and coupled with wimpy h.p people push them harder to keep up with traffic.
My 1993 T100 with the 3vz-e (3.0 litre) blew a head gasket on the previous owner at 359,000 miles in 2013. That’s pretty understandable; however, it blew another head gasket at 406,000 miles in 2018, forcing him to sell it. I think you are correct about incompetent people screwing with these head gaskets and replacing them with low quality parts. If you don’t mess with these engine, don’t tow 8,000 lbs regularly and do regular maintenance, they will last forever
yeah when replacing the hg, you cant just replace the hg. and it isnt that he did it wrong, although he probably did, if you have the stock exhaust, the crossover pipe will heat up the gaskets, and the pressure will force them out. this is even more likely with a low quality gasket material
According to the dealer, 3vze made before Jan 1990 had the right gasket material and they were not recalled and they won't blow neither. I have one has 275k.
ive read this a few times but could not find where this could be confirmed. i have a 1990 v6 with 266k miles got it with 264k and i was told the head gasket was changed once before i got it .. engine runs like a clock, but it does feel old lol
The reason that the inlet hole is soo small is to lower the pressure coming from the engine. If the oil pressure going into the turbo is too high the oil will leak into the turbine and compressor sides of the turbo.
It’s true I currently drive a 1993 3.0 4x4 with 198k miles and no head gasket problems I believe bad head gasket comes from poor maintenance in my opinion
I’m a 3vze lover. Mine hasn’t let me down. Yes I had a bad head but other than that it’s reliable as fuck. We all know about the 3.Slow so why bash the dude for wanting to just try. Not many turbo this engine and it’s nice to see someone say fuck it and try. I’m hoping to build mine one day to get it from 3.Slow to a 3.Go.
Bro can you help with the dimmer switch on these I have a Two wire gauge I just put the positive to the green wire on the dimmer and then the ground for gauge to the middle grey black wire
Some 3.0s go for ever some not as long as forever... But as hard as 3.4 swaps are to come by recently without paying up the ass 3.0 done right might be a option. A big ass turbo I hadnt thought of that..
I have one that has been under water three times, no problems with anything yet, the bad head gaskets came on the ones assembled in america so that explains that. ..( I should explain that my truck is a standard cab standard bed truck. they were built in japan as they did not sell well enough to have a line going in the u.s.) this intrests me because I happen to know that there is at least a half inch of cylinder showing at tdc. these engines have about 7.5:1 maybe 8:1 compression thats why they are called the 3 point slow. I should have spent the extra 1700 bucks and had the dealership bolt on a supercharger when I bought it ( it was an option in 1992) but like a dick , I didnt do that.
My Daily Driver is a 90’ Sandalwood Metallic 4Runner SR5 2WD (89’ 4WD Style Frame/Suspension/Brakes/Drivetrain Minus Transfer Case & Front Diff If You Know You Know) Original 3VZ My odometer quit working @346K miles almost 2 years ago. Starts & Runs like new🤔🤫
if you replace piston rings, or screwup the timing while replacing the water pump, or attempt to do a valve job.... whatever it may be that leads to it happening, the fact is, that an Inexperienced mechanic can Easily cause a headgasket to malfunction, wear improperly, or be improperly installed/torqued down.
For the oil feed line you should put a T fitting where the oil pressure sender attaches to your block and then your return line goes down into your oil pan near the top... And of course "logically", on your turbo you want the feed inlet at the top and then the return will be exiting on the bottom.
I applaud your attempt at doing this and you have some skills...but you are lacking many basic engine operating fundamentals. This was doomed from the start, engines create vacuum on the intake side of the throttle plate and fluctuate on its opening percentage not on the atmospheric pressure side (yes there would be a very slight vacuum there because of the restriction of the filter but only a little). " The Turbo is an oil pump" ??? No No No, that oil is supposed to be pressurized oil into the bearing case to both lubricate and COOL the bearing from the extreme temperatures of the hot side of the turbo and dump the super hot oil back into the sump to be cooled by the COOLING system including the stock 3vz water to oil cooling system. You also have the breather system blocked off with no breather oil catch system resulting in crankcase over pressurization from excessive blow by past the piston rings resulting in blowing out the seals and spewing oil everywhere (this is basic turbo knowledge). Stock 3vz exhaust manifold crossover system is a very restrictive design (one of the worst ever, just look at the angle of the point where the two sides merge, 110 degree turn from the passenger side against the flow from the drivers side) Turbo systems require an efficient exhaust system to remove the EXTRA air shoved into the cylinders, You did not improve this already bad system.This is where you effectively doomed this build, the backpressure and resulting huge increase in cylinder temperature doomed the pistons and rings. These engines were notorious for blown head gaskets mainly at the #5 cylinder due to the extreme hot spot on that cylinder from the horrible exhaust crossover dumping all the exhaust heat from the passenger side directly at that cylinder and the head gasket design was destined to fail eventually from the excessive heat expansion and contraction. In the mid late 90"s I was doing 1-2 head gasket replacements a day under warranty on low mileage unmolested 4Runners and Trucks. There was (is still) a Special Service Campaign to replace the head gaskets. If I remember correctly there were 3 redesigns of those head gaskets. I picked up a 95 4Runner with 168k about 5 years ago that had a rod knock (bent #5 rod due to hydro locking from a blown gasket), I figured it had the V06 campaign done and was going to fix this on my own, but I checked the VIN at work much to my surprise I found that it still had an open V06 SSC (head gasket), I ordered a new short block and head gaskets under warranty and paid myself 18 hrs to replace it. The reason you don't see RU-vid vids of a turbo build for these is mainly because this was tried by more then a few ppl and failed years ago before RU-vid was around, if you look at old posts on most 4runner forums you will find that this mod had a very low success rate without serious mods. Mine has 202k on it now and I'm a little tired of the 3.slow and I'm ready for a swap but was looking for a fairly cheap turbo build example to if nothing else put the little 3.slow out of its misery in spectacular fashion. Hence how I came about your upload. Once again I applaud your attempt and was hoping for a better outcome but could tell it wasn't going to be so in watching the build. I know this is coming off like a bashing, but its not. Its a learning proses and I thought I had a responsibility to warn others that this build if followed would result exactly as it did, I did however learn more then a few thing about what would fit where from your uploads. I did also watch your LS swap series and found that to be very interesting.
I'm glad someone else is on the same page as me. I just hope the poster of this video reads about the requirements of a turbocharger to be oiled properly.
MrCWH5 excellent detail and spot on. Made it about 1 min into the vid when things started going south. Head Gaskets from your mechanic screwing with them. Take a 3slow out and overheat it one time then set your stopwatch.
That hole is a engineered restriction on purpose!!! Drilling it out will guarantee that the turbo will burn oil because of over pressure!!! That oil is mainly for lube and secondary slight cooling!
The pin hole is to reduce the pressure coming from your oil pump so it doesn't push oil into the compressor ultimately pumping oil into your intake. ...
Well, I have the 95 V6 with 260K on it. Runs great, oil pressure a tiny bit low on warm up, and power not the best. Jeep HO V8 beats it easy. Would like a bit more power, but not going to bother to do anything unless it dies.
One is your oil inlet on your turbo, the other is the oil drain you run to your oil pan, no pressure. If you run both from your engine your going to have a lot of smoke lol
The 3vze head gasket and exhaust valve issues are from 2 things. The cross over pipe puts all the heat on the #6 exhaust port. Also it puts excessive heat on the back half of the engine. These engine did have problems with head gaskets. It was a parts quality control issue, not a engineering failure. Use a graphite head gasket and eliminate the cross over exhaust. These are 500k engines. Mine took 310k miles to burn a valve and it ingested metal at some point in its life.
Had to pause at 1:40 to say that I have a 1994 4runner 3.0 v6 with 170,000 miles on it. guess what? no head gasket issue so far. In fact, where I live there's a lot of 4runners and to be honest I've never actually heard of or seen a blown head gasket out of all of them....
And not to mention I am very very rough on my 4runner. Almost melted everything due to a completely clogged catalytic converter and still no head gasket problem. 3 clutches in 7 years, and no I'm not an idiot.... I'm just that much of an asshole to it. I do take good care of it maintenance wise though. Constantly get compliments about it from people wherever I go
Yeah man, I'll give you credit for trying and ambition, but you should really do some research and gain some experience before trying something like this, not to mention making something resembling a tutorial on how to do it. You need a better understanding of this entire process.
Havent fully watched the whole video but looks interesting! I just bought a 93 4runner sr5 with a blown headgasket and I'm just sure what I want to do with it yet
shadowstewie Thinking about sanding them down with a long straight block with some sandpaper. Frame doesn't look too good though so I'm not sure about the plans
just so everyone understands, he didnt just fry a piston ring. he blew a head gasket. not to mention the numerous other things he managed to fuck up while making this "educational" video
Put a turbo on it and all worried bout tall the vacuum lines and you still left the EGR/pair which is basically 90% of those lines! There is a vacuum on the driver fender under the brake booster which goes all the way over to the 4 wheel drive wonder if that would have helped thing! But no matter what I don’t know why you would drill out a supplied part to a turbo kit? Your crazy dude but it is rad! But really just get a 3.4 it already takes super chargers and turbos!
Well I just blew my head gasket in a 91 3VZE 4R, When I took it to the shop.. It had been there before. I thought that was great except it had had the gaskets changed ‘UP’ before. So, this is the second time. Right side too.
They blow gaskets because the stock exhaust heats the rear of the heads and warps them. If you don't have your heads machined after a head gasket has blown, it will keep blowing gaskets regularly. I only made it 4mins into this vid..... I have never seen anyone working in such a filthy work environment, bet it didn't work.
You are the only other person I have seen that knows the stock exhaust causes them too blow head gaskets.. I was going to put it in a comment until I got 2 minutes in and couldn't take anymore. Wow, I hope nobody follows anything in this video. Not sure if it's a troll channell, lots of work ruining a toyota to troll people. Amazingly I think it might be real. lol.
