Very good series. Looking forward to finding out what failed in the engine. I have been I'm the process of overhauling a 2006 4runner 1GR-FE for about 2 months. Taking it slow as I needed to figure out why it had experienced two head gasket failures in less than 3 years. I found that the heads and the block BOTH had over .003" warpage (probably from a massive overheat before I bought the car. Previous owner paid almost $4k for the head gasket work which included sending the heads out for machining, but I guess they didn't notice the block was warped as well, so the new gasket failed within a short time between cylinders 2 and 4. I used a long granite plate with 200 grit open face sandpaper to get both the block and the heads to less than .001" of flatness. 200 grit is within the specs for proper finish when using MLS type gaskets. The valves looked ok, but some of the intake valves were also no longer sealing. Pistons were reusable once the carbon was removed from the ring lands. I used Simple Green to soften the carbon. Bought some new Japanese rings, but not Toyota brand. The oil rings are ridiculously low tension. New main bearings fit fine. The new rod bearings however were narrower than the oem, and they produced .003" clearance which was outside the specs. I ended up reusing the original rod bearings which gave clearances of .0015". Sure hope it works after all this effort.
I have my 05 in the garage right now. Coming up on two months redoing the head gasket my self. Checked clearances for the buckets. Remarkably at 260k all are in spec or just slightly over on the exhaust side. Which i read is fine. Very amusing this channel is rebuilding the same engine that’s been giving me head aches the past month.
Interesting comments .my prado 07 v6 just blew a gasket last week it's got 250ks .bought it on 160ks 7 years ago been a great car .mechanic quoted me 12k for a reconditioned $6800 engine from guy in Melbourne who does them .should I get a new engine ? Cheers
My overhaul was very successful, so far. 200 psi in every cylinder and not using any oil or losing any coolant. Some of my rocker clearances are a little off, so it's a little noisier at idle than factory. Since I did all my own machining of the heads, block and valves the total cost was about $1000. That covered the gasket set, timing chains, rings, main bearings, fipg sealer, new harmonic balancer, etc. Reused the nearly new water pump. I always use the green Prestone coolant.
Love your channel. As a Toyota newbie who is considering buying a 2005 Tacoma, this is fascinating to see how the 1GR-FE works and how it is engineered. Thanks to your careful and detailed reviews, I feel much more confident to tackle some of the bigger jobs on my vehicles. Grateful for you taking the time to go through each of these step-by-step for us. Thank you Petr!
I own a FJ Cruiser and one of the prime reasons to get this vehicle apart from many other factors was this well designed ultra reliable engine. Thank you for explaining in detail.
Great video! I have one of these in my 4runner. I'm loving the in depth look. I hope I never have to go deep like this, but at least I'll have seen it ahead of time. Mine is a 2008 that has 291k miles.
Thanks for the great info on the 1GR! I’m a DIYer troubleshooting misfires / low compression on cylinders 2 4 6 (P0300, P0171) on my ‘05 Tacoma at 270k. Started out with P0016, for which sensors were replaced and then timing components. Just installed all new timing components, appropriate seals, pcv valve, cleaned vvt’s, checked for vacuum leaks. I’m thinking a minor blown head gasket. What diag should I perform prior to removing the heads?
My 05 had the gasket issue. Back around 145k it was rough starting cylinder 6 misfire codes. I threw a bottle of k-seal in it. It sealed for up to 260k. Issue came back rough starts and eating coolant. It’s been in the garage the past month as I replace the head gasket. Almost complete with the job.
5 pain stakingly long videos and you have removed two valve covers and the crankshaft pully.. this is hard to watch . maybe write out some bullet points for important things you'd like to make note of instead of just rambling on and not actually disassembling the engine . this is a great concept for a video as alot of folks, myself included are very interested in the tear down of a 1gr-fe but you are not executing it very well .
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Very good series. Looking forward to finding out what failed in the engine. I have been I'm the process of overhauling a 2006 4runner 1GR-FE for about 2 months. Taking it slow as I needed to figure out why it had experienced two head gasket failures in less than 3 years. I found that the heads and the block BOTH had over .003" warpage (probably from a massive overheat before I bought the car. Previous owner paid almost $4k for the head gasket work which included sending the heads out for machining, but I guess they didn't notice the block was warped as well, so the new gasket failed within a short time between cylinders 2 and 4. I used a long granite plate with 200 grit open face sandpaper to get both the block and the heads to less than .001" of flatness. 200 grit is within the specs for proper finish when using MLS type gaskets. The valves looked ok, but some of the intake valves were also no longer sealing. Pistons were reusable once the carbon was removed from the ring lands. I used Simple Green to soften the carbon. Bought some new Japanese rings, but not Toyota brand. The oil rings are ridiculously low tension. New main bearings fit fine. The new rod bearings however were narrower than the oem, and they produced .003" clearance which was outside the specs. I ended up reusing the original rod bearings which gave clearances of .0015". Sure hope it works after all this effort.
I have my 05 in the garage right now. Coming up on two months redoing the head gasket my self. Checked clearances for the buckets. Remarkably at 260k all are in spec or just slightly over on the exhaust side. Which i read is fine. Very amusing this channel is rebuilding the same engine that’s been giving me head aches the past month.
Interesting comments .my prado 07 v6 just blew a gasket last week it's got 250ks .bought it on 160ks 7 years ago been a great car .mechanic quoted me 12k for a reconditioned $6800 engine from guy in Melbourne who does them .should I get a new engine ? Cheers
Or should I try some of that glass sealer in a bottle ???
My overhaul was very successful, so far. 200 psi in every cylinder and not using any oil or losing any coolant. Some of my rocker clearances are a little off, so it's a little noisier at idle than factory. Since I did all my own machining of the heads, block and valves the total cost was about $1000. That covered the gasket set, timing chains, rings, main bearings, fipg sealer, new harmonic balancer, etc. Reused the nearly new water pump. I always use the green Prestone coolant.
Awesome series thanks! Can't find any more though? Would love to keep watching. I have an Australian LC120 Prado with the 1GRE-FE and love it!
That multilayer steel water pump gasket is the most toyota thing I've ever seen
Love your channel. As a Toyota newbie who is considering buying a 2005 Tacoma, this is fascinating to see how the 1GR-FE works and how it is engineered. Thanks to your careful and detailed reviews, I feel much more confident to tackle some of the bigger jobs on my vehicles. Grateful for you taking the time to go through each of these step-by-step for us. Thank you Petr!
I own a FJ Cruiser and one of the prime reasons to get this vehicle apart from many other factors was this well designed ultra reliable engine. Thank you for explaining in detail.
This is the way
Love see more content on this 4.0! First 4.0 owner here
Great video! I have one of these in my 4runner. I'm loving the in depth look. I hope I never have to go deep like this, but at least I'll have seen it ahead of time. Mine is a 2008 that has 291k miles.
This is some serious ASMR. I love it!
We have three trucks with the 1gr-fe all at 240k+ looking forward to this series
Can't wait for the next video! Nice job my friend. Thank you for sharing.
Great demonstration Peter, looking forward to the next instalment 👍
I am learning so much from you Peter thank you so much for sharing your knowledge with us😎💙
Very informative and interesting video, Peter. Cheers my friend. 🇨🇦🇺🇸
Love your style! What a fantastic series!
Thanks for the knowledge making me a fan of this engine
Great Job My Friend !!!!
Where is the rest of this series ? Can’t find them 🙏
Love this video series, I can't find the next episode for this, does anyone have a link to it or is it not out yet?
@toyotamaintnence have you done a video on the 4.0 belt tensioner replacemment?
Thanks for the great info on the 1GR! I’m a DIYer troubleshooting misfires / low compression on cylinders 2 4 6 (P0300, P0171) on my ‘05 Tacoma at 270k. Started out with P0016, for which sensors were replaced and then timing components. Just installed all new timing components, appropriate seals, pcv valve, cleaned vvt’s, checked for vacuum leaks. I’m thinking a minor blown head gasket. What diag should I perform prior to removing the heads?
Are you planning to continue this series? I have a 1GR-FE in my 2008 4Runner and woudl like ot see it continue.
Tacoma owner with this 1gr-fe
- thanks for sharing your knowledge 🤙🏼😎- where are you located?
Awesome idea for a video series!
Excellent Peter, maybe the next one will be a 2UZFE
Great Video Peter thank you!
280k miles is a little below life expectancy for this engine. I hope I cam get more with 5k full synthetic oil changes
Great channel
Thanks sir 🥰👍👏.
That was awesome!
Díky Petře !
Great job
Very instructive. Tkank's
You the best you the best!
Very interesting. Our 2006 4runner with 130,000 miles just blew a gasket.
My 05 had the gasket issue. Back around 145k it was rough starting cylinder 6 misfire codes. I threw a bottle of k-seal in it. It sealed for up to 260k. Issue came back rough starts and eating coolant. It’s been in the garage the past month as I replace the head gasket. Almost complete with the job.
120k on that bottle? Did you consider just doing it again?
you need a Milwaukee 1/2 inch mid torque or high torque. way cheaper than an air compressor plus tools.
🙂always enjoyable.
Toyota is such a great engine manufacturer! Appreciate their engineering so much more after working on a piece of garbage Jeep Patriot!
Failing to start
Part 2🎉🎉🎉🎉
5 pain stakingly long videos and you have removed two valve covers and the crankshaft pully.. this is hard to watch . maybe write out some bullet points for important things you'd like to make note of instead of just rambling on and not actually disassembling the engine . this is a great concept for a video as alot of folks, myself included are very interested in the tear down of a 1gr-fe but you are not executing it very well .