Valve stem seals. I need to do this on a 2JZ head as well. Not looking forward to it at all, as head removal is the least problematic way to do it. You probably aren't going to find too many aftermarket parts as these are probably 1J specific items.
Tuesday, August 30, 2005 - 03:29 pm, by: Adam Foster(Adam)
that sounds a bit steep, i would be trying somewhere else. and you can change the valve stem seals with out removing the head, i remember manny saying something about this to someone who had the same problem. besides im never keen on machining the head unless its really necessary.
Tuesday, August 30, 2005 - 03:42 pm, by: Graham Dollisson(Alloyvee)
If you go here.. http://www.mkiv.com/main/index.html Click on "Tech Articles" in the left column...go down to the heading "Problem Solvers" and then to the 3rd one "smoking burnt oil on start up? valve stem seal replacement on '93-'98 toyota supra turbo" ...you will get some idea how it can be done without removing the head.
Tuesday, August 30, 2005 - 03:45 pm, by: Tate Clinton(Tek)
Matt. I thought I had this problem too... and I may actually have it, but i'm starting to doubt my initial thoughts.
I first noticed blue smoke coming from my car at startup which is the number one indicator that your valve stem seals are gone or going. So I went down to my mechanic and talked to him about it, and was told that it is not a major problem at all... it really depends on the severity of how far gone they are. As in, how much smoke is coming out of the exhaust? Does it happen when u take off from the lights? Or only on startup?
Initially the seals will only leak oil on startup because when the engine gets hot the seals re-seal themselves. Unless the problem has gotten worse than this, it is not urgent at all. So do not stress too much yet.
The car can go YEARS from noticing the inital effects of leaking valve stem seals until i would classify it as "urgent", but it's just a personal preference.
Also, I have been told the same thing as you... about the head having to be removed, but there is easier, cheaper ways. I'm not exactly sure, but it involves using a specialised tool to keep the valve open... I wouldn't be suprised if some mechanics just want you to spend big bucks on labour.
I am starting to think that it is not my valve seals that are leaking though, and when i opened up the air intake pipes i found some traces of oil there... which suggests that the turbo seals are going (again, not something which is extremely urgent). I just cleaned the oil out of the pipes (but be careful not to leave residue, because they lead into your turbos) and my problem has been solved. For now, becuase this is just a temporary fix. But I think its worth having a look at .. rather than just jumping into the valve steam seal job, which will be quite costly.
Btw, my car blew a bit of blue smoke on startup and when on full boost. I think that could be a good indicator of wether it is turbo seals or valve seals.
Tuesday, August 30, 2005 - 03:48 pm, by: Tate Clinton(Tek)
Yeah the link that Graham posted shows the method that my mechanic was telling me about, much cheaper and quicker, IF YOU KNOW WHAT YOUR DOING. it just takes patience, experience and knowledge though i guess hehehe... i'd definately want to take it to a trusted mechanic for that job.
Tuesday, August 30, 2005 - 04:11 pm, by: Michael Keen(Jzz30man)
I agree that $2K sounds expensive. I think you are likely to be able to buy aftermarket Valve Regrind/Reseal Kits for the 1JZ. I'm told the best seal is obtained by removing the head, valve cleaning, valve machining, and machining the shims to match. The idea of replacing seals without removing the head is always attractive for obvious reasons. Consider how many K's on your engine, and how may K's it takes for the shims to get noisy. It could happen that the shims need machining in the near future, and thats very difficult to get right without taking the head off. Just food for thought. And yeah I know, removing and replacing a head is a PITA. I'd have thought you could get it done for $1,500. I have used a guy out near Wetherill Park that was pretty cheap in the past. He's an engine rebuilder / head guy. Not sure of details at the moment. Maybe a few people can recommend people. If you are tight for cash I wouldn't let a little smoke in startup or under acceleration bother me too much. Just chek the oil now and then.
Tuesday, August 30, 2005 - 04:19 pm, by: Matt Toll(Live_1991)
just all of a sudden went like this.
i dont wanna be pulled over, so i am not driving it now. just sitting at home. the smoked filled up the car so quick ( had sunroof open) had to get out of the car cus could not breath.
after about 2 mins of starting her up. its like rave thingee with the smoke :P
ahha the best bit is i just left my high paying job to start a trannieship oo yeah :P
Tuesday, August 30, 2005 - 05:09 pm, by: Jeff Hogan(Hoges)
that sounds the same as brothers MA70 (7MGTE) supra, it blows a buttload of smoke when he starts and when he flogs it and then backs off. It only just started doing it after he took it to Mercury Motorsport to get new injectors and fuel pump installed and then tune the wolf 3D. So it seems like they stuffed something severly! A mate of mine who used to run an import business rekons he has done a fair few valve stem seals on 1J's, he said its not too bad a job, you just have to take out the spark plug, then fill the cylinder with compressed air to open the valves and then use a special tool to remove the valve. Just dont drop a valve into the cylinder!
Tuesday, August 30, 2005 - 06:22 pm, by: Graham Dollisson(Alloyvee)
If I had to pay $2k for that, I would just change the engine. I know some would think that it's better to have work done on the engine they know, but!!
Tuesday, August 30, 2005 - 06:30 pm, by: Peter Lang(Langy)
Matt quick check, if the smoke is mostly white i near garantee you dont have a valve stem seal prob. oil burns blue only. white smoke is vaporised oil . sounds more like a blocked turbo oil drain pipe or buggered turbo . remove the air inlet pipe and feel the shaft play and resistance if ok remove the oil drains and check for any blockage or restriction ,only needs to be slight to cause oil to bypass turbo bearings
Tuesday, August 30, 2005 - 09:22 pm, by: Tate Clinton(Tek)
Usually valve stem seals dont just disintegrate, so i'm kinda cautious to tell you that you have the cause of your problem down. I also wouldn't imagine the smoke (blue, right?) from the seals to go so bad to "fill up the cabin" like u said... it doesn't sound right to me... it sounds like something else for sure.
Tuesday, August 30, 2005 - 09:29 pm, by: Greg Manson(Greg93tt)
I have to agree with Graham i would go for another engine. I have seen them for between $1000 and $1500 but have it checked first!!!! At least then you have plenty of spare parts aswell.
Neil Griffiths Trader 1 x JZZ30,2 x UZZ31,1 x UZZ32,1 x UZZ Track Car,1 x AeroCabin,1 x Crown V8,1 x Celsior
Tuesday, August 30, 2005 - 09:30 pm, by: Neil Griffiths(Aussiesc)
Lack of Oil Changes..Lengthened Oil Changes..All add up to this problem. (They get hard and crack) You may also find that the *Valve Guides* are in need of replacing as well Especially if the smoke starts to get heavy.
If its light,you may try some oil treatment.(May help a little)
Like what has always been said..Keep the oil changes up (Even if it means ya miss out 1 night at the Brothel) hahahahahahah
Wednesday, August 31, 2005 - 07:51 pm, by: Miles Baker(Milesb)
Ouch. 32 valve stem seals. There is a Toyota specialist tool though.. look for the Toyo Tool. I think the website might even by toyotool.com. Has videos and all. With that tool the job should be easy.
Thursday, September 01, 2005 - 10:01 am, by: Cihan Aday(Cihan)
Miles, 24?
Matt, i have seen this problem in a soarer i was looking at buying in melbourne. It was fine on startup, so after letting it warm up we went for a test drive. Afterwards there was so much blue tinged smoke pouring out the exhaust at idle i felt embressed. It was like a smoke bomb went off After that it smoked every time he started it up.
The owner wasnt too shocked, and he said the turbo's would need replacement and he would call me back regarding what work needed to be carried out. I think he fixed the issue and it went back on the market. Not too sure what happened exactly, but that was one extremely clean soarer with every option but leather. Even had a factory cabin air filter
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