bdashrad's rebuild / supra story

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
I'm a long time reader, first (well, not quite) time poster.

In march 2004 I purchased a 1989 supra turbo. targa top, red, grey interior, 5-speed. I had actually looked into purchasing this car a few years prior to this, but that is neither here nor there. I bought it with 134k on it, with a new clutch, a somewhat upgraded and rebuilt ct26 (not sure exactly what, the previous owner has passed away, and when i first talked to him about the car i didn't know enough about them to find out anything more than "an upgraded turbo"), a metal head gasket, manual boost controler, and the k&n filter kit.

At this time the car was not running and hadn't ran in 2 1/2 years. I bought it for $500 and had it running in 3 days. (when they did the clutch some idiot put the timing belt on 120* off, so it wouldn't run, for obvious reasons.)

I drove the car till august, when I took a hard corner one day down the street from my house and heard what i knew instantly to be rodknock. the car ran for about 3 minutes till i got to my house where it was parked in my backyard and hasn't moved on it's own since.

School and lack of money put a big damper on things, so over the past few months i've spent time taking the motor and tranny out, dissassembling the motor, purchasing parts, and finally have some parts off at the machine shop. (I also happen to be a regular poster on team-integra, as i have owned 3 in my days, and have many friends there, so most of this was chronicled there).

So now my crank and rod's are at the machine shop, the crank needs to be turned, i spun the #3 rod bearing. i also need a new rod, according to my machinist, but all the others can be reconed without a problem. The parts should all be back this coming week.

I plan on detailing the rest of my rebuild on this thread, but decided to finally start posting it on here to gain a little insite and perspective from others in the mkIII community. My goals for the project are a fresh rebuild, all new gaskets, obviously new main/crank bearings, and getting the car back to stock/near stock shape. Hopefully here i can get some advice on rebuilding from some people who have done 7m's before, like things to watch out for and so on. I am doing this all with two of my friends, between the three of us we have done full rebuilds/custom work on both of their cars.

Anyway, please post any questions/advice/whatever here, i will be updating with pictures, etc as time passes and hopefully have the car done by spring, if not sooner.
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
to anyone that has done a rebuild:

i'm looking at my supra block and head here, and wondering how i can tell if/how much it's been machined. It was switched to a metal head gasket, so i think it has been, but i'm not sure of a way to check. the mhg on it is THICK, off the top of my head i'm estimating 2-3mm. you can still see the stamping on the mating surface of the block (i believe bearing size codes).

Do i need to resurface the block and head even though i didn't blow the head gasket in order to reuse the mhg?

I also have a stock head gasket that i can use, if needed.
 
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IJ.

Grumpy Old Man
Mar 30, 2005
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I come from a land down under
Bearing codes are stamped into the pan rail.

I haven't come across the exact measurement between the deck and the main bearing saddle but that would be the only accurate way of knowing.

Yes a MHG will require surfacing of both the head and the deck.
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
it already had a mhg, my question was do i need to resurface to reuse the mhg.

the same codes that are stamped ontol the pan rail are stamped across the surface of my block, one next to each cyl, i'll get a pic.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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I come from a land down under
I could be very wrong here but stamping the deck is insane!

Something I've never heard of before........

If the surfaces are both flat yes you can clean them and reuse the MHG.
(A lot of the guys are using Permatex brake quiet sprayed onto the gasket as a sealer, the gasket when new has a flourine rubber coating but that will be damaged as soon as the head is pulled)
 

Larry_A

You don't matter
Apr 7, 2005
102
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SoCAL
Information on rebuilding engines & using MHGs is already all over the Internet. Everything discussed in this thread thus far has already been hammered into the ground over, & over, & over. Do a search & let us know when your engine's done.

Good luck.
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
ok here's some pics of those stamps i mentioned...
p73458_1.jpg

p73458_2.jpg

p73458_3.jpg


see, right on the surface! does this mean that the block hasn't been machined before? anyone have these marks still after machining?

the numbers are stamped 222122 from cyl 1-6, same as on the pan rail.

also, can anyone else belive that the guy before me was running a mhg on a deck surface that looked like that!
 
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gixxer750

2jzget comingsoon!
Mar 30, 2005
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Mississippi
my block does not have those stampings. And yes, looking at that surface, you need to have the block and head machined.
 

GrimJack

Administrator
Dec 31, 1969
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idriders.com
Wow, I've seen many 7M blocks, and I've never seen one stamped like that.

Can't hurt anything though, that's the perfect place to stamp the deck surface if you wanted to.

Your machine shop should be able to tell if your block and head have already been machined, and by how much. Mine just looked up the stock height in a dusty tome, measured mine, and compared the numbers.
 
X

Xxn000nxX

Guest
bdashrad said:
picked up crank, rods, and pistons today, along with all new clevite bearings and arp rod bolts... looking mighty fine

glad to see you finally got your ass in gear bard. let me know when your ready to start putting it back together..
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
so spent some time today cleaning up the block and head with some break cleaner and elbow grease... not the smooth finish i'd love to have there.

now my question is at what point is the surface too rough to get by with just the brake quiet spray and i should just get the block and head machined? Could anyone with experiance tell me/provide pics/be willing to take a look at some pics of the surface if i get some?

I don't want to cheap out and blow the head gasket, but if i can save myself some coin by skipping out on some more machine work, all the better.
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
i know it's been a while since i updated, had to pay some bills and what not but now i'm back in action. i'm giving myself till may 1st to get the car back on the road, but it's looking like she'll be done a lot earlier.

just bought arp headstuds, rear brake calipers (my sliders were frozen). the block and head will be going to the machine shop next week to be prepped for mhg. then the reassembly begins.

current plans for rebuild (still to buy):
550cc injectors
maft/3" gm maf
walbro 255l fp
3" catback... old 3" was rotted out so it was replaced with stock post-cat, already have hk$ dp and 3" cat.
turbo elbow (probably later on, i think i'm just gonna invest in a full dp/elbow combo eventually)
intercooler hardpipes... fabbing them up myself with a buddy, we did his last year on his integra and they are holding well
driver's side doorshell and/or repair the rot on my drivers side door.
fab up some solid motor mounts... using grimjack's specs from the faq

i've been debating taking the two dsm intercoolers i have and setting up a setup with those (either duel intercoolers or getting them welded up into one) anyone have any thoughts or experiance doing this? haven't seemed to turn up much info here on the dsm cores. (just dsm is too short to search, and dsm intercooler turns up anything with intercooler in it).

as always, any input/trashing/suggestions/questions are always welcome
 

GrimJack

Administrator
Dec 31, 1969
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idriders.com
The DSM ICs are barely less efficient than our stockers, two of them in parallel shoudl be better than our stocker... Although, for the money, I'd likely just throw a few bucks into buying one of those Spearco replicas from Bigaaron.
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
GrimJack said:
The DSM ICs are barely less efficient than our stockers, two of them in parallel shoudl be better than our stocker... Although, for the money, I'd likely just throw a few bucks into buying one of those Spearco replicas from Bigaaron.

i was thinking about that, but i already have the two DSM IC's... do you think i should just split the IC piping and run to each one in parallel like jblmk3 did with the dual stockers or run them in series... i was thinking parallel because they have small inlets and outlets coming off the end tanks

something like this:

p147587_1.jpg
 

bdashrad

New Member
Apr 7, 2005
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Lowell, MA
block and head are going in to get milled/decked/lapped on monday... gonna cost me 140, i don't need to bring anything besides the lower timing cover do i? maybe upper when i do the head?

also, does anyone (i'm looking to IJ on this) know the stock block height? i know he had it off his new block but i can't seem to turn it up in his thread
 

IJ.

Grumpy Old Man
Mar 30, 2005
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I come from a land down under
Grim: My new block was stamped.

BDash: Sorry been looking here and can't find the file with the specs :(....
DOH

From memory it's an exact metric number ie: 198mm from saddle to deck.