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Location:
Brisbane
Registered:
May 2002
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2JZ rebuild
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Wed, 10 August 2005 05:05
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Has anyone here rebuilt a JZ series engine? I'm considering this for my 2JZ-GTE which is starting to get a bit tired (increased oil consumption, slight bottom end rattle) and I want to get an idea of the costs involved. Shouldn't need anything too major, just rings/bearings/seals/machining etc. No upgrades are planned at this point, I just want a freshen up.
I'd like to hear anyone's first-hand experiences!
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 05:20
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GT should know
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Location:
Osama's hideout
Registered:
February 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 05:43
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not the indestructible 2j. whats happening norbie? has the engine done a lot of k's or do you have a suspicion of a fault some where.
i would suggest hardcore racing norbie, ask for Bruce, hardcore is located in logan just of the motorway. he rebuild 2j's on a daily basis.
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I supported Toymods
Location:
I renounced punctuation
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 05:48
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Hmmm.....well I have shelved plans to rebuild the 2JZGE - plan is to go sick on the VVTi 2JZGE and use the M800 to its fullest when I have my exams out of the way.
To do the things you want (a refresh), you'd be looking at 1500ish in machining and parts (excluding pistons), plus whatever to assemble. 2JZGE VRS kit is about $470 (I'd imagine the GTE one is about the same). Obviously the cost will go up depending on what fancy bits you want to add. Another 2G for Argo Rods, another 1200 for some forgies. Personally, if I were you, I would throw in a set of forged slugs - you're the kind of guy that might just bolt on a big fuck off turbo on the side of it one day. 
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 05:49
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| 1JZ.747 wrote on Wed, 10 August 2005 13:43 |
not the indestructible 2j. whats happening norbie? has the engine done a lot of k's or do you have a suspicion of a fault some where
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Haha, it's not broken, it's just finally succumbing to Norbie's driving style and just wearing out 
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 06:20
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Yup, the front cut had 80k on the odometer when I got it (who knows how many km's it really did though) and I've been giving it arseholes ever since I installed it two and a half years ago. It's done an awful lot of work in that time, including several interstate trips, drag racing, circuit racing, mountain "cruises", and of course random Norbie-style shenannigans.
It's far from broken but it's showing definite signs of wear, so the longer I postpone a rebuild the more expensive it will be!
Thanks for the info GT, that's pretty much what I was expecting. It's tempting to go forgies but the stockers are reportedly good for a shiteload of power... not sure if it's worth the money since I genuinely don't want to build a big-hp lag-monster. If I ever go the single turbo route it will be something relatively small (eg GT30) and I reckon the stock pistons will be OK for that. On the other hand if I need new pistons anyway (and I really hope I don't), I might as well fork out the few hundred extra for forgies.
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Location:
c'town, NSW
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 06:22
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from all accounts ive heard norbie has a binary accelerator pedal
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 06:24
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| rob_RA40 wrote on Wed, 10 August 2005 14:22 |
from all accounts ive heard norbie has a binary accelerator pedal
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And the clutch pedal?
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Location:
Brisbane
Registered:
June 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 06:33
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anyone care to mention the head? That's where your expense will be if it is corroded and or bent (which unfortunately a lot of 1/2 cut motors are)
Also the cam bearings will need doing, valve grind (almost needs a full head rebuild if you ask me) as you had leaking stem seals.
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 06:46
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There's nothing to suggest the head is corroded or bent. It's never overheated badly and it's always had Toyota red coolant in it. New stem seals and a valve grind are a given though.
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Location:
Brisbane
Registered:
June 2003
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 07:52
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7M's are released with corrosion though.
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Location:
Brisbane
Registered:
June 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 08:20
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dont expect your heads to look any better.
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 08:21
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I feel some jealously..
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Location:
Perth
Registered:
October 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 09:45
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If V8_MA61's 302 heads are corroded i think youll definitely find your 1UZ heads are aswell CrUZsida beacuse your engine is also V8. In the end I suppose everyone will have a corroded head if V8_MA61 did or his mates bestfriends brother in-law said he did too
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Location:
Melbourne
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 09:51
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| Norbie wrote on Wed, 10 August 2005 15:05 |
Has anyone here rebuilt a JZ series engine? I'm considering this for my 2JZ-GTE which is starting to get a bit tired (increased oil consumption, slight bottom end rattle) and I want to get an idea of the costs involved. Shouldn't need anything too major, just rings/bearings/seals/machining etc. No upgrades are planned at this point, I just want a freshen up.
I'd like to hear anyone's first-hand experiences!
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the joys of a second hand motor!
you will only have an idea of cost when you see what the bores are like and get everything crack tested etc..
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Location:
Montrose, VIC
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 09:53
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The blokes at Ford are clever buggers. They found a way to increase the efficiency of the internal combustion engine - not only does it release from the crankshaft, but also from the cooling system. See, every Ford engine block is actually a large battery as its primary purpose, and it is able to use river water as an electrolyte. This, in turn, forms large scale levels of corrosion in all parts of the vehicle to which it is attached, as well as unexplained heating and electrical problems.
I'll stop now before I get carried away
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 09:58
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| V8_MA61 wrote on Wed, 10 August 2005 18:20 |
dont expect your heads to look any better.
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Come and have a look in the water jacket of my 1jz 
It looks mint. As have all the 1jz'd I've seen at wreckers etc.
I suspect toyota are using a very high quality alloy 
Cheers
Wilbo
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Location:
Brisbane
Registered:
June 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 11:30
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| wilbo666 wrote on Wed, 10 August 2005 19:58 |
| V8_MA61 wrote on Wed, 10 August 2005 18:20 |
dont expect your heads to look any better.
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Come and have a look in the water jacket of my 1jz
It looks mint. As have all the 1jz'd I've seen at wreckers etc.
I suspect toyota are using a very high quality alloy
Cheers
Wilbo
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have you actually had the head off the block? my 7m head was looking good too until i removed it and had a look near the combusion chambers
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Location:
Brisbane
Registered:
June 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 11:32
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| mrshin wrote on Wed, 10 August 2005 19:53 |
The blokes at Ford are clever buggers. They found a way to increase the efficiency of the internal combustion engine - not only does it release from the crankshaft, but also from the cooling system. See, every Ford engine block is actually a large battery as its primary purpose, and it is able to use river water as an electrolyte. This, in turn, forms large scale levels of corrosion in all parts of the vehicle to which it is attached, as well as unexplained heating and electrical problems.
I'll stop now before I get carried away
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at least they dont blow headgaskets! bar the xd-eb 250's.
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 12:09
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| V8_MA61 wrote on Wed, 10 August 2005 21:30 |
| wilbo666 wrote on Wed, 10 August 2005 19:58 |
| V8_MA61 wrote on Wed, 10 August 2005 18:20 |
dont expect your heads to look any better.
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Come and have a look in the water jacket of my 1jz
It looks mint. As have all the 1jz'd I've seen at wreckers etc.
I suspect toyota are using a very high quality alloy
Cheers
Wilbo
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have you actually had the head off the block? my 7m head was looking good too until i removed it and had a look near the combusion chambers
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I'll think about taking the head off when I get a BHG shall I?
Cheers
Wilbo
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Location:
Brisbane
Registered:
June 2003
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Re: 2JZ rebuild
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Wed, 10 August 2005 12:11
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if you head is bent or too corroded that can still cause a BHG on a 1jz car. if it cant seal on both sides...how can it act as a gasket?
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Location:
Montrose, VIC
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 12:16
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| V8_MA61 wrote on Wed, 10 August 2005 21:32 |
| mrshin wrote on Wed, 10 August 2005 19:53 |
The blokes at Ford are clever buggers. They found a way to increase the efficiency of the internal combustion engine - not only does it release from the crankshaft, but also from the cooling system. See, every Ford engine block is actually a large battery as its primary purpose, and it is able to use river water as an electrolyte. This, in turn, forms large scale levels of corrosion in all parts of the vehicle to which it is attached, as well as unexplained heating and electrical problems.
I'll stop now before I get carried away
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at least they dont blow headgaskets! bar the xd-eb 250's.
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Darned shame they never made any 250s after the EA (except for old stock they continued to stick in the XF utes up until the XG) - darned shame they also STILL blow gaskets on new ones
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Location:
Brisbane
Registered:
October 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 13:08
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if u are serious about getting it rebuilt, i.e. its gonna get done anyway, then pull it out and take it to a shop that does free strip and quotes, then if u dont like what they say, atke your boot o' JZ bits to he next shop and ask them
bring ti to my work, we do free stripping and quoting, and i can get u cheaper cost parts too
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 13:12
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| V8_MA61 wrote on Wed, 10 August 2005 22:11 |
if you head is bent or too corroded that can still cause a BHG on a 1jz car. if it cant seal on both sides...how can it act as a gasket?
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OK To start with my comment about taking the head off my 1jz when I get a BHG was a joke 1JZ's don't really have a reputation for BHG's (metal headgasket stock is a wonderful thing ), I'm suspecting I won't be taking head off any time soon
Another thing is, if an engine has a BHG you can expect head corrosion (such as you experienced). This is due to an acid (carbonic acid?, I'm not 100% sure what acid is formed) being formed when combustion gasses enter the water/coolant. This acid that is formed causes corrosion (such as you experienced). This is my understanding, and may indeed be incorrect
Cheers
Wilbo
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Location:
tas
Registered:
June 2002
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Re: 2JZ rebuild
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Wed, 10 August 2005 14:48
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I suspect your 7m has had a few different coolants mixed with eachother at some stage blake.
If say the engine was using toyota red all it's life the inside of that 7m engine would look brand new.
I've got an old old subaru boxer engine that i picked up from somewhere, at least 28 years old that i opened it up and found the internals for where the coolant travels very CLEAN! brand new appearance still. The other subaru engine that my step dad thrashes around on old black oil and minerlised water is just rust and corrosion.
first time on these forums i've ever heard of a 2jz needing a rebuild  Good statistics for the 2jz!
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Thu, 11 August 2005 00:17
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| Mr DOHC wrote on Wed, 10 August 2005 23:08 |
bring ti to my work, we do free stripping and quoting, and i can get u cheaper cost parts too
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I might just do that! Where do you work exactly?
Note that none of this will happen until YelloRolla finishes rebuilding my 18R-G, so it could be a while yet (he's a busy man). Having both my cars off the road at the same time isn't a smart idea.
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Location:
Brisbane
Registered:
June 2003
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Registered:
August 2002
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Re: 2JZ rebuild
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Thu, 11 August 2005 08:51
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| Norbie wrote on Thu, 11 August 2005 10:17 |
| Mr DOHC wrote on Wed, 10 August 2005 23:08 |
bring ti to my work, we do free stripping and quoting, and i can get u cheaper cost parts too
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I might just do that! Where do you work exactly?
Note that none of this will happen until YelloRolla finishes rebuilding my 18R-G, so it could be a while yet (he's a busy man). Having both my cars off the road at the same time isn't a smart idea.
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so what your saying is that your 2j will be rebuilt some time in the next eternity?
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Location:
Brisbane
Registered:
October 2002
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Re: 2JZ rebuild
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Thu, 11 August 2005 14:34
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i work at redlands engines, brett just had his RB30 bottom end done there, so he knows where it is
did u want me to get a basic cost on the build anyway
i know about the 2 cars off the road feeling, worse is when they both fuck up at the same time and u have no control over it 
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Location:
Brisbane
Registered:
May 2002
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Location:
Forrestdale W.A.
Registered:
October 2004
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Re: 2JZ rebuild
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Fri, 12 August 2005 00:04
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Interestingly a good friend of mine has a 2JZ in his MK3 Supra with a GT40R turbo and standard everything except the exaust manifold, injectors and throttle body. Car makes 532rwbhp @ 5600rpm on 12psi boost. Big turbos don't always mean big lag, can't remember what torque it makes but to drive the car it doesn't feel much different from standard apart from the excessive wheelspin/OMG acceleration.
On the coolant note, I spent some time in the lab at work recently due to a broken leg (I'm a plant mechanic with the WA CAT dealer) where we test all the oil/coolant from the large earthmoving machines around the state. The customer sends us a sample, we analyze it thru a series of tests and send em back the results. Coolant colour is not a good indication of it's condition, the nitrites (which provide the corrosion inhibitor) in the coolant have to be within certain levels or else there is a good chance corrosion will occur. You can actually see over a period of time the degree in which a coolant loses it inhibitor capacity, with earthmoving they add a coolant extender to prolong the life of the coolant (imagine paying to change 350l of coolant) and the CAT stuff often lasts for 10,000hrs if it's maintained. You can actually get your coolant analyzed the same way but it's about $22, prolly cheeper just to change it!
Cheers
Mark
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Location:
u.s.a. south
Registered:
April 2004
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Re: 2JZ rebuild
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Sat, 13 August 2005 17:18
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what about the dealer short block route ?
Had a friend replace his 1J block with a 2j. He knew someone who got it on employee discount, was ~$1400usd I beleive. Not bad considering what these things are capable of.... thats if you had a 'damaged' motor tho.
I've seen a few local 2jzs with rod bearing knock... problem for them seemed more 'user oriented' to be honest
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Sun, 14 August 2005 04:27
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I priced a new 2J short motor from toyota, was $4K NZ shipped to Aus.
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Location:
Brisbane
Registered:
May 2002
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Re: 2JZ rebuild
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Sun, 14 August 2005 06:18
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A brand new short block sounds great, but I can build a stronger bottom end for less money. I reckon the rebuild option makes more sense.
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