3A vs 3A-C Engine

General discussion about our beloved Tercel 4WD cars
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ARCHINSTL
Goldie Forever
Posts: 6369
Joined: Sat Apr 30, 2005 1:52 pm
My tercel:: Goldie is a 1986 SR5 attualmente con Weber/also owned the first T4WD in STL in late '82
Location: Kirkwood, a 'burb of St. Louis

Post by ARCHINSTL »

Well, my '86 SR5 is supposed to have a 3A-C, per the firewall plate and specs. However, about 5 years and 800 miles ago (yes-the mileage is correct-it was only driven 800 miles from then until I bought it in April), the head was replaced with a used one due to cracking from a failed water pump.
The replacement head was cleaned and milled (so the repair invoice stated) and checked for cracks, and new gasket installed as well.
My question: The sticker on the side of the cam cover states "3A", and the factory yellow and black sticker at the back of the cover states "3A-8 73WMF", and also "570 13" The "8" is kind of a guess, as it is somewhat marred. It would stand to reason that the mech in Murfreesboro replaced the head and cover intact, I guess?
Maybe I've missed it, but what are the differences between the 3A and the 3AC? Anything significant? Anything I need to make allowances for?
Thanks,
Tom M.
T4WD augury?
"Oh, do not ask, 'What is it?' Let us go and make our visit."
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"Now and then we had a hope that, if we lived and were good, God would permit us to be pirates."
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clbolt
Top Notch Member
Posts: 189
Joined: Tue Mar 01, 2005 6:05 pm
Location: Arkadelphia, Arkansas

Post by clbolt »

All 6 of my Tercels have said 3AC on the emissions decal, and 3A on the valve cover. I know for a fact the head has never been off my current 86. In fact, the only one I've seen lately with a different valve cover sticker was one I found in a junkyard with a 3A-SCV. It also had the "wavy" valve cover.
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