Car stuck in RWD? Weird

[birelshifterkart]

Don is gonna help me out on this, but I thought I would post it to pick your brains. My car, with its brand new clutch and flywheel (well, 1200 miles on them) started to feel like the clutch was slipping? I'd start out in 1st and it would rev and just act like it was all burned up? Weird right?

Now i go to move the darn thing and its stuck in rear wheel drive! How the heck could this happen? Every gear works, reverse, 1st, 2nd, etc. It just acts like the clutch is slipping (I smell no clutch at all), and is only in rear wheel drive?

Any quick ideas?

Thanks!

[Mirage]

A DSM is acting this way? Only thing I can think of is if you grenaded the front diff or related componants or snapped an axle.

Nothing else can really cause a RWD DSM without other things happening.

Marcus

[birelshifterkart]

Hmm...sounds crappy either way. I'll look at the axles in the morning to see if anything is awry.

I wish this stuff would break by me actually doing something cool/abusive. Oh well :o

[Hal]

Most common cause:

Passenger side front axle not fully seated or popping out because the c-clip is either missing or the wrong size.

Hal

[birelshifterkart]

Thanks....I'll have a look-see and hopefully thats the case....how could the pass. axle be seated and work well for 300+ miles then come unseated? The clip just possibly came off, etc?

[Hal]

The axle can still be seated, but perhaps the c/v has come apart.

[buckley]

Sorry to say but when I was at the track I did a 3 second RWD burnout because of one reason. Marcus hit it right on the dot. I blew up my center diff. Check the diff or the axles. Those are the only possible ways for your car to become RWD..

buckley

[birelshifterkart]

How much are center diffs? I have a feeling its not the axles.... :rolleyes:

[v413nc3]

Is this the setup that had an E3 transmission put in it?

[fusionsport]

I believe he re-used his 2G trans.

[v413nc3]

I thought it was said on CRN that he used an Evo 3 transmission.

[birelshifterkart]

Yes i did.....maybe i shouldn't have? I wanted to use stuff that i knew had been working before...maybe it was a bad idea:(

[v413nc3]

I'm confused, you used the Evo 3 engine but not the transmission is that correct?

[birelshifterkart]

Yea ,i was in the middle of ontario, Canada.....rather then chance possibly having the evo 3 tranny and t-case possibly be bad, I just re-used my 2g stuff since they worked flawlessly for 10k+ miles before the 2g motor killed itself.

[v413nc3]

Yeah, good chance it's just the center diff. The evolution 3 transmission won't work for you. The end drive ratio is different, the case is setup to bolt into an evolution 3 which is closer to a galant/1g than a 2G (no roll stop mounts). Basically you will blow up its center diff if you use it.

[fusionsport]

90-93 EVO(or any other Mitsu AWD those years) transmissions did not have the roll-stop mounts, 94-up all use the 2G style mounts. No EVO motor will bolt into a 1G without some work, because all of the EVO blocks lack provision for the front and rear roll-stop mount.
Galant RS and GVR4 motors are identical to 1G DSMs and will bolt right in. typically the Galant RS and and VR4 valve covers are red but EVO valve covers are a kinda Titanium cover and are identical to a standard 2G longblock.

Using an EVO, GVR4 or RS trans can be risky because of different front diff ratios etc. and Jakes right that that would have killed your CD almost instantly.The transmission would likely bolt right in though, since the rol stop mounts should have been on it.

[birelshifterkart]

Hmm..what do you think this motor is then? It does have the titanium valve cover.....so hmm. A lot of stuff on it was more like a 7 bolt 1g. It wasn't just a straight shot bolt in though, we had to play with a lot of stuff. It sucked, haha.

I thought using that tranny was risky. While frustrated, I know that stock t-case had some miles on it. The center diff is located within that correct?

[fusionsport]

No, the CD is in the transmission case itself. Fortunately its not hard to change, and ASSumin you havent destroyed anything else isnt a particularly expensive/difficult thing to fix. Before you go blaming the CD and jumping to conclusions though lets get it in the shop and see whats what- just lemme know when you want me to send the flatbed after it.

[v413nc3]

Incorrect, the Evolution 1 and 2 engines will go into a 1G just fine. They've been put in 1G's and Galants. The Evolution 3 engine was 7 bolt and the external casting looks a lot like the 7 bolt 1G motor, which will also go into said vehicles, I have one.

[fusionsport]

From RRE's excellent writeup on what fits what:

EVO Motors: The valve covers of the EVO 1-3 motors will be a kind of titanium color. They are the same as a US 2G motor with nothing fancy. They have the smaller 2G style intake ports, a small runner intake manifold with a larger plenum and a larger throttle body than a 2G motor. Still they are hard to find. Many are from other 4G63 powered cars and can have small 13G sized turbos. They will not bolt into a 1G because there are no provisions for the front roll stopper motor mounts that bolt to the block. Everything in Japan from 94 and up has the front and rear roll stopper motor mounts on the transmission 2G Eclipse style. Many people are running around yapping about how they have an EVO motor in their car. If it bolts into a 1G, it isn't an EVO motor.


I know some people consider the Galant VR4 or RS as the first of the EVO's because there WERE Evolution models produced of them for rally racing. However the in this instance EVO 1-9 is meant to describe the Lancer models.

[v413nc3]

Only the Evolution 3 had the titanium colored valve cover. I'm well aware of what the RRE page says, but you're a bit behind in information. Feel free to CALL them and ask. As posted on here by multiple people E1-2 clips have been purchased and put into Galants. And I HAVE an E3 block. I know exactly what it looks like, not to mention I post on a board where people own Evo 1, 2 and 3's. This is far off topic and we should get back on it. The Evolution 1 and 2 blocks are 6 bolt, the Evolution 3 is 7 bolt, the evolution 4 -8 are transverse mounted to ours but still 7 bolt.

[birelshifterkart]

Well, i guess it will bolt into a 2g ?? I take it this must be an Evo 3 motor then correct?

I didn't keep the tranny because I sold it to live on :D

[v413nc3]

Any 4G63 (non evo 4+ type) will bolt into a 2G with minor modification since the 2G only needs provision for one motor mount. All other mounts are transmission based. That's why we can do the 6 bolt swap. And since the E3 is a 7 bolt it's super easy to just use our front case setup :)

[birelshifterkart]

Well, i had to modify a bunch of crap to make it work, so i guess it is an EVO 3......oh well.

I take it I have to drop the whole tranny to get at that center diff correct?
I'm getting to be an expert at that....this will be the 3rd time within 1500 mile of driving the car I've had to pull the tranny (Once for clutch, once for motor, now this).

DSM's rule! I know why they've racked up wins at Le Mans and Sebring....they just are so damn reliable!

[v413nc3]

The center diff has always been a weak point. This is why we either go welded, 4 spider, or Quaife/Cusco. Yes you are correct you will have to pull the transmission to swap it out. I'm sure some of the tranny people on here have a way of doing it in the car but it's just as easy to me to pull the damn thing.

[birelshifterkart]

How much are each of those options?

[v413nc3]

I believe Jack has a good price on 4 spiders, does welding if you want a welded center. You'll want to research both options for advantage and disadvantage each. The cusco/quaife solutions are in the 1200-1500 range, and worth the money IMO.

[birelshifterkart]

Yea...1500 bucks and I'll kill myself. I could have probably bought an evo for the amount of dough I'll now have in this p.o.s. Oh well, you live and you learn.

What do you think the others run? I want to dump no more money into this car.

[sbiggi]

You can replace the CD with it in the car. The hard part will be getting stuff clean enough to reseal the case.

[fusionsport]

You can replace the CD with it in the car. The hard part will be getting stuff clean enough to reseal the case.


Bingo! Replacing the CD assuming it hasnt grenaded and killed gears shouldnt be much of an issue, if in fact its bad.

[Hal]

It's not hard to do, but you will need access to the proper tools.

Gear puller for the 5th gear set (sometimes they slide right off), a socket that fits the end nuts and the ability to put some serious torque on it, a set of c-clip pliers, and a micrometer.

There is a tranny rebuild manual available for download on this site.

A magnetic pick up tool can come in handy too.

Hal

[birelshifterkart]

Looks like its sitting in the garage until spring :)