My other Toyota- '86 MR2

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Hi guys-
Here's a little story about my other car, my soon-to-be daily driver...

Back in about 1996, my roomate told me he was going to Mexico for 6 months to sell timeshares. Along with him, his coworker decided to go as well. He had an '86 MR2, and didn't know where to put it for those 6 months, so he asked me if I would watch it for him. I said sure, no big deal. He left me some money to keep it up while he was gone(~$200). Well, during that time, I drove it once or twice, and started it every couple of weeks to keep the battery charged, and the oil moving. I noticed almost immediately, that two od the car's tires were balding, and so i used the money to get a new set, since it needed them.

Well, six months passed, and my roomate came home, but his buddy didn't. So....I continued to babysit the MR2. days became weeks. Eventually, the battery needed to be replaced, due to sitting for so long, even though I was trying to keep it charged. Then one day while driving it on a rare occasion, it started making a slight rattle. I was thinking rodknock(I DO drive a supra afterall). At first it was mild, but one day I had to drive the car because my supra was out of commission- and it got Seriously loud, and the motor had NO power. I was on my way to work at a nightclub in midtown Atlanta. I asked my boss if i could leave it parked in the back lot for just a *Little* while. He said yes.
The owner(whom I was still in occasional contact with) asked me to sell it. He sent me the title, but I told him about the engine failure, and asked him what he wanted me to do with it. Never heard from him again.

Well, those months eventually turned into years. By around 2005, that poor little MR2 had been sitting under a pile of leaves, sinking in the mud, in the backlot of a midtown nightclub. The only time it had budged, was to move it from one spot to another on a couple of rare events where the club needed the space. Ironically, every time the jumper cables were applied, the little 4AG started right up on the first try, although it always sounded like crap.

So, eventually the MR2 outlasted the club. the owners decided to sell, and asked me to move the car. So with the help of AAA and some jumper cables, that MR2 was driven onto a flatbed, and towed up to where I lived and placed into storage. Now- why would I keep this thing for so long, you ask? Well, my friends told me many times to just junk it and get rid of the cost and hassle. But i figured- after a decade of having it, replacing the battery countless times(under warranty), and paying storage fees(and once an impound fee), I OWNED that sucker. And being a Toyota guy, I knew i'd eventually want to dive into it as a project.

To this day, some 15yrs later, the previous owner is still MIA, somewhere down old Mexico way. and so be it. squatter's rights. I have the title, i own the worthless thing. Fast forward to 2007. the MR2 had been sitting in storage now for 2 years, me paying the $80 bill each month. Well, i finally moved across town, to be closer to my new job, and into my very first house. Meaning- my very first garage- YAY! So with a friend's help, we load the MR2(again- under it's OWN power) into a trailer and drive it out to my new house, and into my garage.

About 6 months later, I finally get the urge to tear it apart and see what it's made out of. So, I pull the engine/tranny, and start looking into what I'll replace it with. The idea of a 7AGE catches my interest, and so i start collecting 7AFE parts to make the build. BUT, not long after that, I get frustrated with trying to get a decent motor for a decent price. I go to many junkyards looking for a 7AFE, but they're either crap, or missing. I finally get what i think is a good shortblock, but when I get it home and torn down, I see that a rod ate the crankshaft. I lose interest, and begin focusing on my supra again. Now with a bare 7AFE block in the corner, sitting next to the original blown 4age on a motor stand.

Last week, i finally decide to do something about that damned eternal MR2.
I decide that I want to get it up and running, so i can make it my daily driver, and that'll allow me to redo my supra properly. So now the focus is a cheap restoration. With that in mind, i decide to just keep it simple, and stick with the 4age. i tear apart the engine, only to find out that it was not rodknock, but rather, the engine ate two of its pistons! #2 and 4 both have broken ringlands, with #2 missing a good chunk altogether! The rods look good, the block looks good except for a few scratches down one cylinder, and the crank just needs a light polishing on two rod surfaces.

Welcome to the present! I have just ordered a new gasket set, new head bolts, new pistons/ rings in +.5mm, new clutch disc, and new bearing set. Total price- $202. Next on the list is new flywheel bolts and arp rod bolts, for peace of mind. Then the block and rods will get sent to the machine shop. Block will be bored/ honed, and the rods will be resized with the new arp hardware. i expect the cost of machine work will be around $100-$150.
I know a guy.

As for the car itself- beautiful interior, outside is decent, but it again needs 4 new tires- they dry rotted. The car has a bit of typical rust-out behind the rear wheels, so i might end up going to the junk yard and cutting the back out of another shell and welding them in. otherwise, it's pretty solid. About a year ago, i rebuilt all 4 brake calipers and installed new rear wheel bearings. Car rolls nicely now.I'll add a few pics as well here.

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11/10:
I got the block/ rods/ crank up to the machine shop. The guy looked at the crank, and said that the rod journals would have to be ground down, though the mains were ok. I asked him if it would need to be brought down farther than .25mm(.010), and he said he didn't know. Apparently, they make rod bearings all the way past .75mm, so I guess I shouldn't worry too much, just have to order ANOTHER new set of rod bearings now, this time undersized.

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11/30



So, it's been awhile since an update, but that's because I've been waiting for the machine shop to finish up. They called me yesterday, to let me know that the crank had come back from cutting/ polishing, and that they took .020 off the rod journals, so now I know what bearings I need, and have ordered them.
They also told me that the crank needed minor straightening, so the cost was slightly higher. Then he told me that the block needed to be decked, which I was hoping that it would not, so the machine work cost has risen from ~280 to about $400. AAARGH!!!

Oh well, Do it right the first time so there doesn't have to be a next time.
I plan to pick up the parts tomorrow, and will post pics up. Assembly will begin immediately.

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12/2
Finally- Got the engine back from the machine shop. There was additional work required, that I hadn't planned on, so here's the breakdown of what was done:

Block- tanked, bored +.050, decked, honed
Crank- polished mains, cut rod journals -.020, straightened
Rods- rebuilt with ARP fasteners, resized.

All this cost me $410, about $150 more than I had hoped. But the parts came out looking great, and it gives me piece of mind. As soon as I got home with them yesterday, I began reassembly. At this point, the rods and mains have been plastigauged and look good, and so I've installed the rods, pistons and main caps. Next is oil pump, rear main, oil pickup and pan(s). If I'm lucky, I'll get up to the cylinder head today.

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12/4:
As I've been reassembling the engine, I've been having trouble finding some of the parts! I took this motor out 2 yrs ago, and now I'm playing "Where's Waldo" with some of the timing and accessory components.
I've also been playing the "2 steps forward, 1 step back" game. After I started diving into the Hayne's book, I realized that I never checked to see which way the valve springs were reinstalled. SO, I had to remove the cams and lifters, and pull all of the springs to check them. I found that 5 of the 16 were upside down.
After reassembling the head I mounted it on the block, and THEN realized that(unlike the 7MGTE) you have to remove the cams to bolt it down! Oh well, all that's done now. Next i have to have a small break in one of the two cooling pipes welded up, then I can mount those, and the intake manifold.

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12/6
Well, I still need to get a few more parts(of course), but it's coming together.
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Tomorrow, I degrease and install the ac compressor, alternator injector rail and injectors, etc.

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12/8
Dangit!
I needed new tires for the car, since the old ones were kinda dry-rotted...
So I got online and found a set for a great price. After completing the transaction, I realized I ordered 15in. tires instead of 14!!! OMG...I even messed up the profile, by selecting 50 series instead of 60 series... and 195's, instead of 185's! I am such an idiot!!! These will NEVER fit on the original rims.

Well...
I guess this just means that I need to order brand new wheels to match these tires...
:devil:

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ok..so I 'messed up' on purpose. I know it was supposed to be a cheap rebuild.

So sue me.

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12-9
Latest pic: All of the accessories on. I had to replace a coolant hardpipe, because after welding up the rust holes, it still leaked from microscopic pinholes.
I bought a used hardpipe off a guy on the MR2 forums for cheap, and now I'm just waiting to powdercoat the valves covers a wrinkle blue finish at my friend's house. Then I mate the engine and tranny together for the install.

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toyotanos

What will we break today?
Staff member
Super Moderator
Nov 29, 2008
2,841
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38
Coon Rapids, MN
Congrats, I used to own an 89 S/C and it was a blast to drive around town, especially if your town has corners :) Good luck!
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Slight bit of progress. I'm waiting to see if my exhaust manifold crack can be welded, but finally got the valve covers done in a blue wrinkle finish powdercoat:

After sandblasting:
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Closeup:
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Motor thus far:
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I was going to assemble the clutch and tranny onto it, but got called into work.
Maybe tomorrow.
 

toyotanos

What will we break today?
Staff member
Super Moderator
Nov 29, 2008
2,841
2
38
Coon Rapids, MN
Hey- what style exhaust manifold do you need(EGR hookup location)? I used to have 2-3 mani's around but I gave them to the buy that bought my MR2- I know I had top and side mount EGR feed manifolds- I bet he still has them! I even think some heatshields were in that box...
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Hey Toyo-

I need the top feed EGR, but I'm gonna find out this week if my existing one is going to be repaired or not.
I'll let you know- thanks.
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Update:
No new pics, but I did install the wiring harness.
I'll be mounting the tranny onto the motor just before I install the engine into the car.
Makes more sense that way, rather than leave the entire assembly hanging on the engine hoist. I'm still waiting on the exhaust manifold to get back, and for the next week, I really have no time to install it anyway. So in the meantime, I've been collecting all the little crap stuff that always needs to get replaced with a job like this; battery connector, antifreeze, oil, misc. nuts and bolts, etc.
 

themadhatter

Member
Jul 5, 2006
760
1
18
Vegas
You havn't updated your thread in a while so i thought i would post up a little "inspiration" to keep going lol

This is my 85 bought it with 204k miles from the original owner with a blown motor but now it's got a rebuilt engine turbo kit, coilovers and waiting for spring for paint and some fresh shoes


The kit
-ebay manifold
-garrett t3 .42/.48
-supra 440cc injectors
-dsm bov
-a2w intercooler
-bosch intercooler pump
-kawasaki heat exchanger
-Megasquirt 1 v2.2 standalone
-walbro 255
-2.5 mandral custom exhaust

The car
-rare 85 hardtop
-toyota front strutbar
-Celica front brake upgrade front
-87+ rear brake upgrade
-bc raingcoilovers 5k/8k
-prothane bushing
-rear swaybar
-15x6 miata wheels
-late model sideskirts

Day i bought it
sideu.jpg


Now
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Old engine bay shot i've deleted the egr stuff and changed the oil relocation setup
hpim0990.jpg



Right now the cars a little sick, i had a large chunk of ice fly up into the engine bay at about 40mph and crack my turbo manifold but things happen i have an extra just have to change my downpipe and charge pipe routing
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Yeah, Sorry there's been no updates recently, In fact, I haven't even been on SM much lately.
But since last time I posted here, I've had the ex. manifold welded, bought a 2nd generation turbo muffler for the car,
filled the motor mounts with urethane, rebuilt the throttle bracket assmebly, bought new struts(and in the process of installing them),
and installed new front speakers.

Pics:
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I got a promotion last week, and they've been working me on 14 hour days ever since.
In fact, tomorrow *might* be the first time I see my house during daylight hours in a week.
If I do have tomorrow off, I will finish the install of the new struts, and then replace the fuel filter and clutch slave cylinder, and maybe even install the engine.
I guess we'll see...
 

te72

Classifieds Moderator
Staff member
Mar 26, 2006
6,602
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WHYoming
Heh, funny how these things spiral out of control sometimes... Nice looking car though man, I'll keep an eye on this one too. :)
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Well, I got the struts in, and the fuel filter installed.
Struts made a HELL of a difference in the rebound and compression.
Doesn't look like I'll get to the engine install for a couple more days yet.
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
Replaced the slave cylinder today.
Normally, Autozone or Oreilly's has the best prices on parts,
But Pepboys surprised me with a $22 slave cylinder, when everyone else was asking $35. It was a LUK part(lsc225), but it's apparently OEM:
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But there's bigger news- I mated up the clutch and tranny to the engine, and shoved that Biotch in there!



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Yay me! First time the car's had a motor in it in about two years.
Although most of the harness/ electrical/ecu connections are done,I still have to do AC, coolant, axles, clutch and fuel stuff. Also, I'm apparently still missing a number of clips, bolts, etc., so I have to make a list of what I'll need to finish it all. But at least now the hard part is done, and it's just "connect the dots" at this point.
:)
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
te72;1673109 said:
Get some video of the first time you fire it up! :)

Oh definately.
It *could* be as soon as tomorrow, but i still have to scrounge up a few odds & ends,
so I wouldn't hold my breath.
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,231
36
48
Atlanta
So today, I had to go down to the pull-a-part to get a rear motor/torque mount, as mine is all rusted out and generally screwed. Last month, they put an '86 on the lot, and I seemed to have gotten there first, as everything was still on/in the car. Today, however, was a different story. The entire interior was gone, as was the tranny, Right read suspension, hood, rear bumper, and of course, my motor mount. I did, however, notice that the driver's side rear suspension was looking pretty sweet compared to mine, so I decided to take it. Surprisingly, All of the mounting bolts came off nice and easy. Also, I grabbed two front sway bar end links, and was again surprised how easy the bolts were to loosen. I also grabbed a front fender to an '88 Supra to help with my other restoration, as well as a small rear glass lift strut from an Expedition, to make an engine cover strut.

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Getting my rusted-ass original suspension assembly off, however, was a royal PITA:
p1673553_2.jpg

Finally got everything unbolted EXCEPT the compression/ caster rod mount.
Using PB blaster and a impact gun got me nowhere. I finally broke the bolt head off, then used an angle grinder to get the nut off the other side, and THAT wasn't even enough. The bolt shaft was completely rusted into the caster rod.
p1673553_3.jpg

Finally got it off, and got the new suspension on in no time:
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Anyway- Most of the reconnection of stuff is done in the engine bay- gonna go back in there and hook up the ac lines, drive shafts, and oil cooler lines, and I'll be pretty much done. Tomorrow, I may try to start it.
: )