3a, 3ac engine's

metalonmetal · Post by **metalonmetal** » Sat Jan 26, 2008 1:45 pm

did the 3ac engine's not say '3ac' on the valve cover?

neonsport · Post by **neonsport** » Sat Jan 26, 2008 5:27 pm

I've had several, all of them just said "3A" on the valve cover.

shonuffisthemaster · Post by **shonuffisthemaster** » Sun Jan 27, 2008 12:58 am

both of mine just say 3A too.

jetswim · Post by **jetswim** » Sun Jan 27, 2008 5:57 am

All 5 of mine just say 3A.

takza · Post by **takza** » Sun Jan 27, 2008 6:09 am

Mine is a Cal-I-fornia special and it says 3AC.

keith · Post by **keith** » Sun Jan 27, 2008 8:31 am

Mine was originally bought in Oxnard, CA by my dad and it says 3A

metalonmetal · Post by **metalonmetal** » Sun Jan 27, 2008 11:20 am

awesome, good to know.

Mac · Post by **Mac** » Sun Jan 27, 2008 8:18 pm

what does the C stand for exactly?

I've seen on various websites/books it say:

C for Canada
C for California
C for Catalytic converter

any ideas?

Post by **Mattel** » Sun Jan 27, 2008 9:23 pm

I thought that C is for Carburettor?

cos E is Toyota engine speak for injection
F is for narrow Twin Cam

my mates Corolla Wagon (which he is giving away for free if anyone needs one in Melbourne?) has a 4afe engine

Typrus · Post by **Typrus** » Mon Jan 28, 2008 10:53 am

C isn't carb.
The 4M engine (no, really, it's just 4M, no more letters or numbers) is a carbed engine.

I have one "3AC" and 3 "3A". The 3AC came out of Cali.

I've seen that "C" is California-spec emissions. Inother words, its capable of passing CA emissions standards. Thats what I've seen it as, but whats funny is that they only did the C on carbed cars. But not all carbed ones have the C. I'm guessing they assumed all EFI models were capable of conforming to CA specs? Though, some EFI engines do have some CA-only options (my 5SFE for instance has 2 different styles of dizzy... mine happens to be FED)

keith · Post by **keith** » Mon Jan 28, 2008 6:47 pm

There is no explanation in the FSM, but all the cars that have a cat have a 3AC, the only models that are 3A only do not have cats.

shogun · Post by **shogun** » Mon Jan 28, 2008 6:58 pm

ive owned 3a, 3ascv, 3asu 3as and most of them say 3a in the valve cover the difference is in the valve cover shape, and the port size and shape

Post by **Petros** » Tue Jan 29, 2008 11:33 am

I have owned 4, all '83-84 years, and one had 3AC (the 1983), the others all had 3A. Near as I can tell, all of the engines appear identical in every way (internally and externally) except there is one slight difference I noticed in the carbs having to do with the way the fuel cut off solenoids are installed. All of them had catalytic converters.

schmooot · Post by **schmooot** » Thu Feb 28, 2008 11:22 pm

Im curious to know the carb differences between the models. Ive got a box of 5 carbs here and 3 of them are identical. One has a couple different lines on teh very front and one has only a 2 wire harness.

Im assuming the one with the 2 wires is out of an earlier tercel.....maybe an 83 or possibly a previous generation (80-82)

And I think the one with the choke opener and another large metal line up front is the C model.

And the other 3 are standard 3A carbs?

Can anyone clear this up for me?

peter_tuning · Post by **peter_tuning** » Fri Feb 29, 2008 12:00 am