Ive just about had enough.

[supraGhost]

yeah definitely rod knock.:3d_frown:


i was kinda expecting it so i cant say i am overly upset right now.


is it possible to just drop the oilpan and replace the bearings from underneath?

 

[GrimJack]

Sure... but you have to remove the subframe to get the oilpan out, and that's about the same amount of effort as pulling the engine from the top.

 

[White Zombie]

+1 with what Grim said.

besides if you were gonna go through all that trouble over ONE bearing wouldnt you do all of them? Of course you would !! LOOK at your car, Its sweet! You Obviously do good work with what you have done. This engine will be one more notch under your belt !!
Invest in a TSRM its worth its weight in Gold, mine has saved me multiple times.
And if you get stuck, well always be here to help man.

keep the faith !!

 

[suprarx7nut]

I fix broken Supra's for fun. Do yourself a favor, pull the motor, spend a little bit of labor time with it, deal with the HG issue, buy a full set of bearings, get the crank ground/polished, maybe replace the rings, then enjoy most a rebuilt motor.

Get your hands dirty and build your car. If you want a fast car with little to no effort, spend a bunch more money and buy a newer car. If you want a fast, reliable car then spend some time fixing your current car and do it right.

 

[black89t]

Man you are lucky!!!!!! I didn't even drive mine for a week before i started having problems. Donn't sell it because you'll be bored without it and end up buying another one. A supra is a crap pipe you just can't put down.

:rofl:

omg my guts hurt. that was hella funny.


to the op don't give up. you have a clean car. all it needs is a motor to back it up.

btw don't just swap out the bearings. pull the motor and go through the whole nine yards. it will pay off in the end when you get 100k out of it. gl.

 

[mdr40z]

:rofl:btw don't just swap out the bearings. pull the motor and go through the whole nine yards. it will pay off in the end when you get 100k out of it. gl.

True that

 

[csnow]

Go 1J or 2J and be done with it. The initial cost to do the swap is a bit more, but it is well worth it if you plan to keep the car for any length of time. I have been on this forum for nearly five years, and I can’t begin to count the number of threads on 7M rod knock and BHGs. Thread after thread of owners singing the same sad song. Yes, there are a lot of people that buy these cars because they are "turbo" and "cheap". This new illustrious and misguided MKIII owner then compounds the problem by buying crap parts, cutting corners, turning up the boost, and then stares in wonder as to why the motor blew. However, there are many who spend a substantial amount on the rebuild and don't cut any corners that inevitably end up with the same sad rod knock or BHG song.

There are numerous threads on the JZ vs. 7M debate so search and read to your heart’s content on the arguments for and against the various motors. I do challenge you to go back and research to find how many JZ owners (1J, 2J, or 2J NA-T) develop rod knock or BHG’s compared to those who were loyal to the 7M. Yes, there are JZ engine failures, but I am sure the numbers pale in comparison to 7M builds. Most of these JZ motors are pulled from Japanese junkyards, shipped to the United States, and then dropped into a MKIII, SC300, or 240SX without any refresh at all . They are then driven hard and beat on daily.

Once the swap is done, cost of ownership is very affordable. In the event that the motor does fail, it is dirt cheap to replace it. You can get a 1J long block for $700-$800, a 2JZ-GTE Aristo for $1400, and a 2JZ-GE for $400. Unless you are looking to build a monster dyno queen or drag car, a junkyard JZ longblock will give you a reliable 400-600 rwhp all day long with supporting accessories.

I wish you the best. You won’t be the first and certainly won’t be the last disheartened owner to abandon the MKIII due to 7M engine failure. It is obvious that you love the car. Do what Toyota did in 1991 and give the Supra the engine it should have had all along.

Chris

 

[suprahero]

To the guys recommending a 1j or 2j........they're not for everyone. I love mine and I've never had a minute trouble out of my 1jz even though I swapped it in used. Once I started upgrading everything, I've found a few problems, but not with the engine, just everything surrounding it.

As for the 7m that you've got, take lots of pictures as mentioned, put the nuts and bolts in zip lock bags labeled properly and you'll be fine. Take it out, replace the rings, bearings and gaskets and she'll be good to go. It's really not that hard. Take some notes if you think it will help you remember things, but you're making it out to be harder than it is. Send your injectors off and have them flow tested for a well spent fourty dollars, and buy a Toyota gasket set. Clean the parts really good and replace what hoses need to be replaced or whichever once you can afford to replace. Take your time since you have another daily driver. Your car is worth keeping, and I promise you if you sell it, within a year you'll have another one that isn't as pretty as the one you have now.


Post some more pictures of your car. The first one was only a teaser.

 

[csnow]

I agree Jay, they are not for everyone. There are problems with the JZ line as well. The 1J has problems with the twins blowing seals, eating exhaust blades, and problematic ECU's (capacitors). The US 2J has the lean spot on the OBDI ECU's and the ceramic blades on the Aristo twins don't laste. That is why I mentioned supporting accessories and made it a point to refer to the engine in it's longblock form.

I will also mention that I had zero problems out of my 7M. I only ran 11psi on the stock CT, but the engine had 150k on it when it was pulled. It was put into another car and to the best of my knowledge, it is still running. All that was done was a MHG and new head bolts after the first BHG. This was done by the original owner prior to me owning the car.

The MKIII is a great car. It is a classic and I will always have love for it. I almost parted out my project last year. I am glad I didn't. I am back on the horse and have set a goal to be done by June.

Congrats on becoming a mod....well deserved. I have been off the forum for almost two years now.

 

[supraGhost]

its sorta funny cause i actually opened a new thread to post this thing up for sale and then i remember i had updated in here so i decided to check.... now i dont think im selling it lol.

one thing i know, that 7m is coming out. and i highly doubt it is going back in. it just gives me a bad feeling. i want something i can drive 4 hours to the beach and not have to worry about it.

right now, with school and work, time is definitely an issue. but i realize this thing isnt worth much as it sits. and a partout would take even more time.

more pics.

still in the paint booth

right outside the paint booth lol

and if you havnt seen my interior

 

[JPsToyota]

From your story, I'd grab a 1J, replace some pumps and belts and give the motor a good look, call it a day.

Good luck man.

 

[dubsupra209]

damn i would defiently not sell it...it looks very clean and the bodys really straight...i once was thinking of going 1jz but due to smog im rebuilding and sticking to my 7m...good luck though....

 

[Heavy D]

same here dont sell it, just do a full rebuild or a 1uz, theres a couple 1uz motor where i live, even tho your couple hours away from me

 

[suprahero]

carpenter? I have spare measuring tapes in just about all of my vehicles.

Black interior > brown interior

 

[supraGhost]

carpenter? I have spare measuring tapes in just about all of my vehicles.

Black interior > brown interior

hah yeah actually



installationwise, obviously the 7m would be the easiest. how much more difficult is a 2jz than a 1jz? how about a 1uz?

 

[White Zombie]

man I would love to see you go 1UZ . Were putting one in my buddies supra this spring, Theres plenty of info on this swap. Check out Brians blue supra on this board !!
PS im putting one in my celica in the summer :love:

 

[lewis15498]

Fix a 7M the right way and you wont regret it. However, if you want to swap a 1UZ, now would be a good time to do so.

 

[supraGhost]

i really like the idea of a v8 in my supra:biglaugh: but someone made a build thread about swapping theirs in and then they started talking about all this transmission mounting stuff and converting to hydrolic and such... it was way over my head anyway. the swap seemed like it would be uber difficult for a beginner

 

[Kevin]

just fix your 7m

 

[White Zombie]

oh, if your calling yourself a beginner, then yeah fix your 7m, right, you wont regret it. The 1uz is not the most direct swap. Wiring ,mounting , blah blah blah

good luck with your rebuild !!