1990AccordGuy

Hi everybody. Brand new member & very first post. TIA for any help and I really hope you guys can help me, this is a bit of a 911 post.

To preface I am an ASE certified tech with a couple decades under my belt. Mainly diesel both HD & LD plus I rebuild & restore domestic classics in my spare time. I am a '60s Ford guy at heart. I have been trying to broaden my horizons (as well as my customer base) and get into imports & tuning. I recently bought a 1990 Accord coupe 2.2L 5 speed. I went through the engine & put a new AC system on it and it has been my daily for a little over 6 months. In that 6 months I have put over 25k miles on it and it has ran flawless until now, and I was saving up for forged internals, Bisimoto cam & springs, and a turbo for it. Just 15 minutes ago I was headed back to OKC where my wife is in the hospital and the trans started making a funny noise. I still had all gears and it was rolling, I was less than 5 miles from my shop so I turned around and headed back to check it out. I thought I had a CV joint going out or had ran over something. Pulles into the shop and looked underneath and there is a softball sized hole in the back of my transmission. Don't ask me what happened I don't have a clue. The car is very nice, the engine is fresh, AC is new, tires brakes suspension and clutch are new. I would like to put another trans in it. Without going into details I am at a very difficult time in my life and money and time are tight.

My question is, I have a 1990 Acura Legend with a 2.7L V6 & 5 speed that runs and drives sitting in my junkyard. Will the 5 speed out of the Legend fit the 2.2L in my '90 Accord? If it will not, what other years/engine's transmissions will drop into this thing? There is only one other junkyard in town I can hunt. I normally like to learn everything on my own by trial & error but right now I do not have time to go pulling random transmissions & measuring until I find one that fits. I need to have this car going this weekend or replace it by this weekend.

Thank you very much.
-Peyton.

1990AccordGuy

Edit/Add-on:
Since the time of my post I borrowed a car and made it to the hospital. I have looked over any threads I could find related to my problem. From what I have gathered a 5 speed from any 2.2L or 2.3L will fit my Accord. Can anyone confirm this? Are there any other options that will fit?

MAD_MIKE

Only times I've heard of an F/H trans popping is from a way overboosted H22, hitting something on the road, or running it without oil. Trans only takes not quite 2 quarts of 10W-30/40.

Nope.
Engine and transmission are on opposite sides. Differential is in the wrong spot for use in an Accord.
If that Legend is a Coupe and in good condition that would be a sweet ride in itself. FYI the 2.7 is a 'C' engine, which is the same family of engine that was used in the NSX(C30/C32).

Honda Prelude 92-01 and Accord 90-02 will have MTs that can work.
Biggest difference is the gear ratios vary, H22VTEC Prelude will have the lowest gear ratios

98-02 Accord ~2.76 in 5th (most conservative gearset and final drive(4.062)) 'P2A8'
90-93 Accord ~2.863 - 3.23 in 5th (coupe/sedan vs wagon) 'H2U5', 'H2C4'
94-97 Accord ~2.863 - 3.23 in 5th (coupe/sedan vs wagon) 'P2C4'
92-96 F22A2 Prelude ~3.23 in 5th (same as 94-97 Accord Wagon) 'M2C4'
92-96 H23A1/2 Prelude ~3.23 in 5th (lower 3/4 gears from F22A2) 'M2K4'
92-96 F22A1 Prelude ~3.36 in 5th (lower 5th gear from H23A1/2) 'M2J4', 'H2S8'
92-96 H23A3 Prelude ~ 3.36 in 5th (lower 2/3/4 gears from F22A1) 'M2A4'
92-96 H22 VTEC Prelude ~3.53 in 5th (lower 4/5 gears with taller FD(4.062) from H23A3) 'M2F5'

I don't have 97-01 Prelude gear ratios, I *think* they are the same as the earlier H22 Prelude. I also recall that there was an optional 4.266 FD making 5th gear ~3.7. Buzz/drone city. Preludes are not known for their economy.

97-01 Prelude and 98-02 Accord MT cases are slightly different looking from the 92-96 and 90-97 cases, a bit smoother looking. But dimensionally they will work with your mounts and shift mechanisms. Just use your vehicles components on the transmission. BTW the 98-02 Accord uses its own weird bastard slave cylinder, so if you do use a 6th gen Accord trans use your 90 Accord slave as that is the same on 90-97 Accords and 92-01 Preludes.

1990AccordGuy

Thank you Mad Mike that is the info I needed. I don't know what let loose in the trans, it still has all gears but something definitely came loose and busted the case from the outside. I haven't had time to look at it yet. It may have to do with the fact this thing has 312k miles on it and most of those were "abusive". I only gave $300 for the car with a snapped timing belt plus 4 brand new tires and wheels. I am headed to the junkyard now to look for another trans, possibly a whole parts car.

1990AccordGuy

Thank you Mad Mike that is the info I needed. I don't know what let loose in the trans, it still has all gears but something definitely came loose and busted the case from the outside. I haven't had time to look at it yet. It may have to do with the fact this thing has 312k miles on it and most of those were "abusive". I only gave $300 for the car with a snapped timing belt plus 4 brand new tires and wheels. I am headed to the junkyard now to look for another trans, possibly a whole parts car.

97f22b22

can I use a stock accord p2a5 final drive in t2w4 jdm transmission

MAD_MIKE

With the correct countershaft, sure.
Or are you wondering if the 4.062 gear will fit over the LSD itself since all LSDs were 4.266 gears.

97f22b22

. Im wondering if the accord gear will fit over the lsd. I want the short gears but I want the accord final for lower rpms on highway trips

1990AccordGuy

I finally got a transmission and I'm in the process of putting the car back together. I ended up with a P2A5 out of a '96 Accord. So far everything has been straight forward, except the transmission mount holes for the '90 mount were not drilled and tapped. Luckily I had the right size bit and tap, and was able to tap them without any problems.

And I found what let loose on the old H2A5, the pin in the diff that the spider gears ride on broke, and half of it fell out, taking a few trips around inside the case before making its exit out the side of the transmission.

1990AccordGuy

5 holes the old H2A5. Still had all gears and I drove it 65mph to the shop like that. 50 miles on the 'new' P2A5 so far with no problems. Drilling and tapping 2 holes for the trans mount was the only non-bolt on thing I ran into on the install.