my civic thread

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chromal
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Postby chromal » Thu Sep 27, 2012 9:14

So, ahem, yes, the cylinder head today:

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It's awaiting the replacement bolt, and then I put the rocker arm / cam shaft girdle back on.

Meanwhile, I dry fitted the (topline/king) main bearings to the block and mains girdle and then plastigauged the bearings as per honda field service manual proceedure.

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I'm measuring in the range of 0.045 to 0.05mm, with 0.05mm being the field service limit. It's a bit looser than factory spec. It looks pretty uniform across the board, though, should be good?

OrangeVirus
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Postby OrangeVirus » Thu Sep 27, 2012 9:14

is that a D15?

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chromal
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Postby chromal » Fri Sep 28, 2012 9:14

Almost, but it's a D16Y8 actually, from a 2000 Civic EX sedan. Sadly, I'm fixing this up to sell the car, rather than what I wish I was doing, which would be building the D16Y8 to upgrade my 1998 Civic CX hatchback's D16Y7. :) All this experience will help when I eventually get around to that!

OrangeVirus
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Postby OrangeVirus » Fri Sep 28, 2012 9:14

looks good! why not just build this Y8, swap it with your Y7 and sell the 7? you could swap engines in like an hour lol

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Shadowden
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Postby Shadowden » Fri Sep 28, 2012 9:14

Nice work you are doing on the civic(s). It has been fun to follow.

If you do a swap into your civic, why not go to a B18c?

http://www.bestofjdm.com/COMPLETE-PACKAGE-JDM-ENGINE-B18C-R-LSD-96-97-p/jdmhonda8.htm

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chromal
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Postby chromal » Fri Sep 28, 2012 9:14

OrangeVirus wrote:looks good! why not just build this Y8, swap it with your Y7 and sell the 7? you could swap engines in like an hour lol


I really almost could, I have an engine hoist and am (for better or worse) getting used to pulling civic engines. Drop the Y7 in the 00'EX, sell it as a "DX," Haha. I don't have a manual Y8 ECU, and the 2000 Ex has a auto ECU. In truth, I can upgrade my Y7 to a Y8 with a cylinder head and ECU swap whenever.

My present thinking on the civic hatch is 'go big or don't go at all,' so yeah, a turbo upgrade or even a B-series, but I'm not necessarily as motivated as all that, since I drive the turbo SAAB and my mazda3 already, I'm going to take my time and really do it right.

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Postby OrangeVirus » Fri Sep 28, 2012 9:14

Definitely get a B16 then. you can make like 500hp on stock rods! ( not stock pistons though ) low comp pistons and stock rods are bulletproof.

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chromal
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Postby chromal » Sun Sep 30, 2012 9:14

Back to work on my silver hatchback civic, I finally had a confluence of good weather and time to work on the exhaust hole on the resonator cat-to-muffler piece. Happily, I was able to detorque and remove all four exhaust bolts without any cutting. This piece, as well as the muffler, had been replaced, and that more recent refresh made my life a lot easier. The problem I was hoping to correct: the exhaust pipe hanger had torn off, taking a chunk of pipe with it:

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First I ground as much of the surface corrosion off using a wire wheel.

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Then I chemically treated it to remove more rust.

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Finally, a chance to use my mig welder. I am using my CO2 tank and regulator from my homebrewing keg setup, not the more ideal CO2/Argon mix I'll eventually pick up.

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The idea was to weld down a piece of sheet steel with about 1" of overlap on all sides of the hole, and then weld the hanger to the patch. There was some figuring out the best heat and wire speed setting. My first time mig welding, so this is not going to win points for workmanship, but it bolted back on the car and things are good again. The exhaust hardware and gasket refresh also help; I had been putting up with a small leak from the gasket behind the cat (under 1st row seating) for some time.

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And now the car purrs quietly at idle.

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chromal
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Postby chromal » Mon Oct 01, 2012 9:14

Back on the civic sedan engine rebuild, I had the replacement bolt and picked up a cheap M6-1.0 tap to clear the threads in one bolt hole for the rocker arm assembly.

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I threaded it up from the bottom because there were more intact threads from that side and it was easier to tap it in alignment with the original thread, though I had to be very careful with the pile of debris it left on the lip of the cylinder head housing.. This task completed, I assembled the rocker arm assembly one final time, with all bolts and 'hondabond ht' silicon sealant applied as per field service manual.

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All parts finally accounted for, it's starting to look like a cylinder head. It should now be ready to mate with the block.

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The bottom end is mostly assembled.

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Oil pump seal, rear seal, cam seal, oil pump gasket and sparkplug riser valve cover seals, all replaced. Next in line will be to bolt up the rear seal plate, the oil pump, then the oil pan. Each of these needs a bead of sealant as well. After that, it'll be time to install the cylinder head on the block!

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chromal
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Postby chromal » Sat Oct 13, 2012 9:14

Sorry about how long it's been since the last update!

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With the OEM-spec head gasket on cleaned mating surfaces, I torqued up the cylinder head to the block with new OEM bolts as per service manual.
Installed some plastic shrouds, a main engine mount hard point, cam pulley, distributor, and then installed a Gates timing belt kit (timing belt, tensioner, water pump) with the crank position sensor.

In order to install the timing kit, I needed the main pulley / harmonic balancer and woodruff key for same. Afterwords, I needed to remove the main pulley to install the timing belt outer cover, and naturally the key dropped to the floor. I heard it hit the floor, and I even thought I saw where it bounced. Much searching later, it is pronounced lost. Later, I buy the replacement at Kuni Honda's parts desk.

After that, more engine externals went on, starting with the main pulley, a new key, and new bolt. The bolt comes with replacement/revision pages for how to install it (vs field service manual), which involve overtorquing, detorqing, retorquing to x ft-lb, tightening the bolt 60 degrees, a heat cycle on the engine, and then turning another 30 degrees. I stopped at 60 degrees.

Using feeler gauges, a screwdriver, and a 8mm wrench, I reset the valve clearances to spec with each cylinder at TDC. After that, I dumped some 5w-30 over the valvetrain before sealing the valve cover down with a new gasket and service-manual specified silicon sealant on strategic corners. I also flooded the oil filter port with oil in an effort to ensure the oil pump would prime quickly.

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New o-rings on the water pipe out of the water pump and to the thermostat housing. New o-ring on the crankcase breather box. New PCV valve. Reinstalled knock sensor, oil pressure switch, drain plug, VTEC solenoid assembly.

At this point, I rolled the engine on its stand out onto the deck. I threw two short 2x6 boards down over the four steps from the deck the the driveway, and very carefully backed the engine stand (with engine) down this impromptu ramp. At the bottom safely, I dragged it to the front of the 2000 Civic EX sedan.

I pulled the engine hoist out of the shed, transferred the engine from the engine stand the the hoist. While there, I installed the drive plate (used instead of a a proper flywheel on the auto tranny versions). Next, using the engine hoist in tandem with a transmission floor jack, re-joined the tranny to the block.

I took this opportunity to reinstall the intake manifold with throttle body and fuel rail / injectors. I also bolted the torque converter and drive plate together. With much effort on the soft dirt driveway, I maneuvered the engine hoist into position and carefully lowered the engine into place. In reality, it was an endless succession of minute position adjustments to get the rear mount bolt in place, and then from there it was pretty quick.

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While this really felt like progress, there was a ton left to do. Fortunately, from engine-in onward, it's all-too-familiar stuff.

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chromal
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Postby chromal » Sat Oct 13, 2012 9:14

Connected half-axles from wheel hubs to the transaxle, lower ball joint into to control arm. (Oh great, one of the new balljoint boots is already torn). Damper fork back on strut and control arm. Spindle nut back on axle end.

Fish the harness through the engine and transmission. Starter assembly back in. Vacuum line connections, coolant lines, radiator. Mount bracket back on engine and AC compressor on that. Alternator bracket and alternator, power steering pump and bracket. Belts. (Left AC beltless as I still need a replacement idler pulley for it). Intake pipe with sensors, air filter box. (Left resonator box off for now).

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The engine ready, but dry, I add low silicate ("Asian vehicle") Zerex coolant, Castrol gtx 5w-30, Honda ATF, and some power steering fluid. Battery back on the car, and since it was sitting for a few months, I run it on the jumper cables from my civic for some time before proceeding.

I pull the fuel pump fuse. I crank and keep cranking the starter. It sounds normal and keeps running. I keep my eye on the lit oil pressure light, and after about 25 seconds of cranking the oil pressure light finally goes out. A few more seconds and then I let the engine sit (and starter) while I reinstall the fuel pump fuse and disconnect the jumper cables from the car. I pulled my hatchback civic away and shut it down so that I can best hear the sounds this new engine makes as I start it.

Doing the full start now, I let the fuel pump run until the rail has pressurized before cranking the starter. It coughs and mis-starts a few times, but by the fourth or fifth time, the engine fired to life. After checking for a oil warning, and giving the engine a quick glance over for leaks, I took this video:

first_start.3gp ( 62MB ).

As you saw, it ran okay, but had high revs and one very confused ECU idle air controller valve. The fuel pressure regulator vacuum line was disconnected, but the idle air controller was still RPM-seeking. That was ultimately due to a vacuum leak on the 'vtec airstream valve' (which mixes in extra air if the engine is cold in 1999 and 2000 model year D16Y8s.) Short-term fix was to plug the vacuum side.

idle.3gp ( 8MB ).

A much more normal-sounding engine, now. All seems to be okay with the overhauled and rebuilt engine so far. You can hear a clatter, that's a loose heat shield on the catalytic converter.

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The best thing? Taking a car that has been dead and engine-less for three months and pulling it out from its grave and for a test spin. I put another car in its former space... just because.

seantobin5
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Postby seantobin5 » Sat Oct 13, 2012 9:14

Nice work!! :D My dad just bought a 1998 Honda Civic CX with 93k miles on it so hopefully we won't have any of the automatic transmission issues. My '98 HX is doing really well! I just put AC in there, took it to the shop only to find out there's three leaks so I replaced those hoses today and I'm going to try to bring the car back to the shop and hopefully it will work without any issues. I had them put on new Bando alternator and power steering belts as they were putting a Napa Gates belt I provided. And a few months ago, I got a new clutch and a new firewall side motor mount. Car runs soooo smooth now! Oh, forgot to mention, I also bought a new Sears DieHard 51R battery a couple weeks ago to replace an EverStart that was failing only after a year of use. I didn't bother with the warranty because I don't like to put cheap Wal-Mart crap in my car.
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chromal
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Postby chromal » Sun Oct 14, 2012 9:14

Thanks man, yeah, it seems I got through it somehow with a working engine, but I'll breathe a little easier once I can put a few hundred miles on it.

I think the 6th gen civics are very solid/reliable, but because they are all between twelve and sixteen years old, they are reaching that point where hoses, belts, gaskets, o-rings, seals, bushings, ball-joint boots, cv boots, mounts, and basically anything made with rubber start to fail.

I had to replace an AC line on my SAAB, it's a wonder these even last as long as they do, given the compressed side is exposed to up to 250 PSI. They seem to fail where the rubber softline is connected to the metal hardline. Good luck with yours, keep in mind that you're technically supposed to replace the receiver-dryer whenever the system is opened (e.g.: hoses or components replaced). YMMV, tho.

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Postby seantobin5 » Sun Oct 14, 2012 9:14

I spray all the rubber parts with a bit of silicone spray every once in a while to prevent them from cracking especially the CV boots. I bought an AC unit off ebay for $400 and I feel like I got ripped off because the compressor was locked up and 3 of the lines were leaky. So new compressor, new AC lines, expansion valve, etc. I found the easiest way to replace the receiver/drier was to take the front bumper cover off which takes about 2 minutes to do. My dad's 98 CX hatchback doesn't have AC and he doesn't want it either. I find that a bit weird but he never used AC in the 93 Escort wagon we used to have. We were the original owners and put 400,000 miles on it before we gave up on it. It's /only/ gone through a few engine rebuilds and a few transmissions.

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chromal
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Postby chromal » Tue Oct 16, 2012 9:14

Update: the 2000 Civic EX now has temp tags and is insured, so it's street legal once more. I've maybe put another five miles on it, driving it around the subdivision.

After a short drive, I noticed some fluid seepage around one of the auto tranny control valve solenoids, which I now recall removing when diagnosing the issue (before I realized it was a spun rod bearing), so I tightened its bolts a little. That solenoid's assembly plate may need a new rubber gasket, having been removed once. I also got a CEL/MIL just as I parked after the last trip, haven't had a chance to check that out.

Some misc other parts on order: another lower ball joint boot, an engine mount bolt. They say 90% of effort for the last 10% of details, here's hoping it won't be that bad, since the first 90% of details were a lot of effort. :) I'm probably also going to at a minimum turn the front rotors if not also replace the brake pads. And there's still the matter of tires...


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