Results on my 92 Metro so far...

DanMan7 · #1 01-31-2007, 11:33 AM

Hello again everyone. I've done some more testing yesterday on my Geo. Here's what I did yesterday:

1. Checked fuel injector resistor resistance, it's between 2.7 and 2.8 ohms.
2. Checked fuel injector resistance, it's 1.3 ohms.
3. Checked fuel pressure. With key on but engine not running, fuel pressure is at 30psi. Same when engine is running.
4. Checked TPS voltage:
a) With key on, connector 3 to ground reads 4.73 volts.
b) With key on, connector 4 to ground reads 5 volts.
5. Changed TPS with another one I got from Ebay with a car that has low miles. Works perfectly. Here's the measurements I did:
a) Between connectors 1 and 2, resistance at idle is around only 25 ohms, resistance with .012" is around 107.4 ohms, and at .035" no continuity.
b) Between connectors 1 and 4, resistance is at 6.87 kohms.
c) Between connectors 1 and 3, at idle 735 ohms, and wide open throttle is 5.46 kohms.

Items 1 through 5 all checked out fine. Today I am running a wet/dry compression check, anxious to see what the results are. I also ordered a new catalytic converter, as I don't know how old the one on there is, as I purchased the car with 158,000 miles. I figure even if it's partially clogged, it's due for replacement.

I will be getting back with results of the compression check, and after I put on the new catalytic converter. Should be this afternoon sometime.

Take care everyone! At least so far I found out there's nothing wrong with my fuel system, or TPS.

DanMan7 · #2 01-31-2007, 12:11 PM

Just did the compression check (finally). Was anxious of the results:

Dry Test
Cyl 1: 160psi
Cyl 2: 40psi
Cyl 3: 80 psi

Wet Test
Cyl 1: 185psi
Cyl 2: 40psi
Cyl 3: 80psi

Looks like bad valves mostly, so I'm going to get a rebuilt head for $200 shipped in a week or so and install that. So, my car's been running on 1 cylinder...lol. Figures...seems like that's all the power it gets. Anyway, I will keep you all posted, and feel free to respond.

Crvett69 · #3 01-31-2007, 02:01 PM

will tell you same thing i told Dr Bill. if you do the head you should replace the rings too or you will probably end up with a engine that smokes

DanMan7 · #4 01-31-2007, 02:39 PM

Well since that would involve way too much work on my part, I think it'd be better to just replace the entire engine. That'd be most economical anyway.

$400chevymetro · #5 01-31-2007, 06:40 PM

I agree with Crvette about the rings and they aren't very hard to do since the head is off. Just drop the oil pan and your there. I agree with you to I'd yank the engine and stick in a JDM. You should check out Ebay for a JDM engine I've seen them as cheap as $375 plus shipping. These are 50,000 to 60,000 mile engines shipped in from Japan.

DanMan7 · #6 01-31-2007, 07:28 PM

There's one locally (40 miles away) that I found that has 24,000 miles, and has a 6 month warranty, for $475. That's the one I'll probably get. IF I did decide to keep the engine I have, what's the process of putting in new rings? Would I have to rehone the pistons and all that too?

$400chevymetro · #7 01-31-2007, 08:39 PM

That sounds like a good deal. If I had mine to do over and knowing what I know now I would order a head and cam from 3tech for $375. That's a little higher than just the head but with a matched cam new bearings an a re-ring kit you'd have a rebuilt motor with the head and cam of your choice. Instead of going into detail on putting new rings in just go to teamswift and do a search there's several posts on it and while you're there do a search for 3tech and check his heads and cams. If you don't care about any performance gains I'd stick with the one with 24,000 miles on it.

Crvett69 · #8 02-01-2007, 12:27 AM

the ones from japan are supposed to have 40-60k kilometers. i usually buy 3 or 4 at a time and them if someone needs them sell them for $450. the prices on them seem to go up every time the price of gas rises. list at the local engine places for the 3 cyl are $475 but since i buy in bulk they give me a deal

Metro Mighty Mouse · #9 02-02-2007, 01:47 AM

If you want to know what is truly involved to replace the rings and what some of the pitfalls are read http://www.automotiveforums.com/vbul...d.php?t=645309 . The replacement motor is definately quicker as long as there are no hidden issues.

DanMan7 · #10 02-02-2007, 02:22 AM

Well I'm in the process of getting the other engine. Well worth it in my opinion! I will be writing back once I receive the other engine, and start doing the entire engine exchange. Should be a bit of work but well worth it!

DOCTORBILL · #11 02-02-2007, 04:54 PM

Why not replace the rings...?

It is not that difficult...I did it and I'm a Klutz.!

If you are interested in my experience getting my '93 Metro 3 cyl back running
like new, go see these threads (I hope the links work OK...)

Lots of photographs taken as I did the job over the summer of 2006.

Is removing the one TB Fuel Injector difficult? Trying to finger out why it won't run.
http://www.automotiveforums.com/vbulletin/t492475.html

Reassembling the TBI and getting it running again.
http://www.automotiveforums.com/vbul....php?p=4297966

That's the end of my '93 Metro.....
http://www.automotiveforums.com/vbul...d.php?t=611713

NOT the end of my '93 metro...Life after death! RINGS taking off the Head
and replacing the Rings.
http://www.automotiveforums.com/vbul...d.php?t=613410

The Flight of the PHOENIX ! Everything since I got it running again.
http://www.automotiveforums.com/vbul...d.php?t=645309

I have many different threads concerning, Front wheel bearings, oil, all parts of the
engine, gas tank removal, battery problems, lights, you name it...

Do a search for my threads under DoctorBill.

I blather a lot - so be patient....Good luck to you!

DoctorBill

DanMan7 · #12 02-02-2007, 07:45 PM

Well I already purchased the engine, and I think it's well worth having an engine with only 24k miles.

DOCTORBILL · #13 02-03-2007, 12:44 AM

I think a '92 3 cyl will go into my '93 Metro hatchback.....

What do you want for your old engine - complete....?

You are in Northern Kahifornyah...as your Governor would say.

I wouldn't mind having a replacement engine around....

Wonder what shipping costs would be?

I did one Head and Rings set.... might be nice to do an engine while it sets on
some sort of wood rack.

Then have essentially a "new" engine ready to go in case this one bites the dust.

Just a thought.

DoctorBill

DanMan7 · #14 02-03-2007, 12:49 AM

Well if all goes well, I will have a complete block and head available to sell. No external parts, such as manifolds, or distributor or anything like that. As for shipping, I have no idea how much it'd cost to ship, and I really would not want to ship it as I don't have time to package the engine. I'll probably end up trying to sell it locally just to get it off my hands.

DanMan7 · #15 02-19-2007, 11:59 PM

I got the other engine today from the guy. It's a JDM engine with 24k miles on it. Has everything already on the engine (distributor, intake manifold, throttle body, EGR, all sensors, exhaust manifold, etc), so it was really worth more than the $475 I paid for it with all that came with it. Anyway, starting tomorrow (Tuesday) I'll start working on the whole project...seems like it's gonna be fun.

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