dr_latino999

<FONT SIZE="3">How To: Not Get Ripped off When Buying a Transmission</FONT>

Yesterday I was lucky enough to see a local seller in the marketplace offer a <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by User name is safe for now &raquo;</TD></TR><TR><TD CLASS="quote">SOHC EX TRANNY REALLY LOW MILES. NO GRINDS THAT I KNOW OF</TD></TR></TABLE>
'Well look here, that sure would be nice to have that if the price is right." So I contact the seller, meet up, and ask a couple dozen questions, inspect the exterior and figure out, it looks good, here's your money. The only thing that threw me for a loop was the transmission ID stamp which read P20/A000, a small bearing case.
"Are you sure that's an EX/SI transmission, as I'm 100% sure that means otherwise."
"Ya, it does."

Since I've seen Honda do stranger things in my day, and the price was right I picked it up promising though to contact him with my findings once I popped opened the case.

Step 1: Look at transmission stamp. P20/A000 = Small Bearing, P20/B000 = Large bearing.


Well, that solves it right there, he sold me the wrong transmission. But wait, there's more:

Step 2: Identify Transmission definitely

Odd...after looking around Honda-Tech for a bit I could not find information on whether the JDM D15B definitely had a A000 / B000 case. Only one way to find out.

Step 3: Remove transmission housing

12x12mm bolts, pretty easy actually.

Step 4: Continue removing transmission housing

Big 3/8 drive bolt, use a breaker to guarantee removal.

Step 5: Stare blankly at countershaft C-Clip

Crap.









Step 6: Remove transmission housing from clutch house

The goal here is to count the teeth on the differential ring gear and then divide them by the teeth present on the counter-shaft. I see 69 teeth on the ring.

Step 7: Make sure all gears are present and accounted for

Or not, let's take a closer look.

W
T
F
How do you do that, really?

Step 8: Count teeth on countershaft
Normally its much easier to remove this from the housing, but I couldn't find my allen wrench. So what I did was make a mark on the gear face with a sharpie and then spin and count.

End result, 17 teeth.


What did I learn from this?
- Trust gut instinct, just because it could be something else assume it's not.
- I was sold a transmission with an obliterated fourth.
- I was sold a transmission that didn't have the correct final (69/17 = 4.058)

End Result
- Always do your research before hand, and never assume something that you buy will work as advertised.

lmananT

that things junk! did you get your money back?

marcs1337

What a POS seller...you shoudl reveal his username

dr_latino999

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lmananT &raquo;</TD></TR><TR><TD CLASS="quote">that things junk! did you get your money back?</TD></TR></TABLE> Well, I did want to have a spare 4.058 F/D for my upcoming close ratio transmission build but not for this price. I have contacted the seller to seek a friendly solution to this, but I have not heard back from him yet. For now I am giving him the benefit of the doubt and not doing anything rash and yelling "XXXX IS A SCAMMER BLA BLA BLA." I just hope others can learn from this, and maybe realize as well taking apart a transmission to take a look around isn't that hard.

wmac

sorry to hear, i too have a dx trans that was sold to me as an ex, when i first started working on hondas, but not in as bad condition.
that A000 stamp is not going to lie!