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914/4: 70 71 72 73 74 75 76 914/6: 70 71 72

> 1974 914 1.8, the mystery of the EC-A and EC-B
wonkipop
post Dec 25 2021, 05:12 PM
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i'll be dropping the information we have gathered over Dec 2021 in with a set of posts.

the material was prompted by mr b ( @JeffBowlsby ) who observed that for the 74 MY there was an EC-A and an EC-B engine. mr b's thought was that the EC-A was a 49 states car and and EC-B was a californian car for emissions.

mr b's view was rational and reasoned. 73 EA engines are 49 states. 73 EB engines are california. 75 engines are documented in factory literature as EC-a (49 states) and EC-b (california). the logic should follow?

BUT

as per the mystery of the 914, the truth about 74 1.8s turns out stranger than fiction (or common sense?).

the material is not necessary to running a 1.8 or having fun with a 14. (IMG:style_emoticons/default/smile.gif)

its for historical purposes and as information to 74 1.8 owners to assist with restoration if they want it.
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wonkipop
post Jul 12 2022, 06:29 PM
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@StarBear @Van B @JeffBowlsby

some more data i pulled down from a car just up for sale on BAT.
05/74 914 1.8.
VIN# 4742918254
K# 2019552 = mon 13 may 1974
fair condition car - mostly original.
no shots of tune up sticker or emission sticker.
but sold new in california - palo alto.
engine shots show that original distributor is gone and vacuum lines for retard and advance plugged and removed.
has engine tin paint stamp #606.
607 and 606 previously found to be EC-A engines.
also has no temp gauge sender lid or console with gauges - consistent with speculation that 606 means standard EC-A engine for 1.8 without console option fitted at factory.
i'll enter this data into the schedules on page 1 of the thread and update when i get some time.

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of interest it has metal expansion tank on fuel tank.
still using metal expansion tank in early may 74

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i have VIN ---18255 , one car after it, already on file from research last year but no images of frunk of that car in the file, so don't know what tank type it had.

by june 74 they were using the plastic expansion tank.
example VIN 4742920438.
no K# for that car but 17 cars from another on vin database here with K# indicating 28 June 74 build.

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i've not looked previously at this with the 1.8 research we did.
i have only a first edition of b. johnson book - restorers guide.
he may have updated the information regarding the plastic tank update.
in the first edition he gives a date of mid 1974.
unclear if he means calendar year or model year.
if he means calendar year he is close.
looks like it happens somewhere between may 13 and june 28.
if any more late production 74s show up post may 13 build date this might be pinned down as a date or vin if it has not already been done.
so far in our research a car has not shown up between these two examples.

the PET catalogue is very vague (incorrect!?) on both the charcoal cannister update and the plastic expansion tank update making it seem that both occur at end of 73 MY.
reality is quite different.

EDIT JULY 22 2022

turned up the stuff on example 1 VIN after blue car above - has metal expansion tank.

1.8 L jet likely EC-B (tune up sticker)
VIN 4742918255
K# 1959559 build commencement friday 10 may 1974

Vin is one number after blue car above, K number indicates build commences on the friday before the monday blue car above starts.

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Posts in this topic
wonkipop   1974 914 1.8   Dec 25 2021, 05:12 PM
wonkipop   SURVEY OF MEMBERS WITH 74 1.8s. INFORMATION FROM R...   Dec 25 2021, 05:14 PM
wonkipop   DATE - UP DATE OF VAPOR EMISSION CONTROL SYSTEM. ...   Dec 25 2021, 05:19 PM
wonkipop   EC-A and EC-B engines are most obviously identifie...   Dec 25 2021, 05:41 PM
wonkipop   emission stickers indicate that both engine versio...   Dec 25 2021, 05:47 PM
wonkipop   more to come   Dec 25 2021, 06:29 PM
RRietman   more to come If it makes any difference, I shoul...   Dec 25 2021, 07:41 PM
wonkipop   thanks for that info randy i revised the schedule ...   Dec 25 2021, 08:24 PM
wonkipop   EC-A / EC-B THROTTLE BODY AND DISTRIBUTOR WITH VA...   Dec 25 2021, 09:06 PM
wonkipop   EXCEPTIONAL DATA 1 MYSTERY CAR mr. b has documen...   Dec 25 2021, 09:06 PM
wonkipop   EXCEPTIONAL DATA 2 paint stamp engine number EA 3...   Dec 25 2021, 09:43 PM
wonkipop   EXCEPTIONAL DATA 3 EC-A engined car (california/C...   Dec 25 2021, 10:12 PM
wonkipop   A HYPOTHETICAL. PAINT STAMP ENGINE NUMBER. this ...   Dec 25 2021, 10:32 PM
wonkipop   POST SCRIPT A TROUBLED BIRTH FOR L - JET / THE FI...   Dec 25 2021, 11:21 PM
wonkipop   VAPOR EMISSIONS CONTROL SYSTEM. (aka the charcoal...   Dec 26 2021, 12:38 AM
wonkipop   revising comments welcome. further documented 1.8...   Dec 26 2021, 04:02 PM
StarBear   Destined to be a classic (though imho it already i...   Dec 26 2021, 08:07 PM
wonkipop   post script @StarBear of course the 1.8 is a...   Dec 27 2021, 04:54 PM
Van B   Anyone else notice that hellhole rust on the museu...   Dec 29 2021, 02:00 PM
wonkipop   Anyone else notice that hellhole rust on the muse...   Dec 29 2021, 03:57 PM
Van B   Was there any car in the US that got the AN or AT ...   Dec 29 2021, 07:26 PM
wonkipop   Was there any car in the US that got the AN or AT...   Dec 29 2021, 07:46 PM
Van B   Well, really the point is to find high compression...   Dec 29 2021, 10:54 PM
wonkipop   Well, really the point is to find high compressio...   Dec 30 2021, 05:15 PM
JeffBowlsby   AN engine in a factory 1974 914 GT (European-marke...   Dec 31 2021, 10:25 AM
wonkipop   ^ wow. original motor?   Dec 31 2021, 07:04 PM
wonkipop   @[url=http://www.914world.com/bbs2/index.php?showu...   Jan 25 2022, 06:12 PM
StarBear   Yep, I'm convinced. Probably (?) not a single ...   Jan 25 2022, 06:39 PM
wonkipop   Yep, I'm convinced. Probably (?) not a single...   Jan 25 2022, 07:24 PM
JeffBowlsby   Nice detective work. I know of nothing in conflic...   Jan 25 2022, 07:15 PM
wonkipop   @StarBear production looks to go like this for 74...   Jan 25 2022, 07:51 PM
L-Jet914   What's interesting is when I replaced my ignit...   Feb 1 2022, 11:17 PM
wonkipop   What's interesting is when I replaced my igni...   Feb 2 2022, 04:12 PM
Van B   @[url=http://www.914world.com/bbs2/index.php?showu...   Feb 20 2022, 11:21 PM
wonkipop   @[url=http://www.914world.com/bbs2/index.php?show...   Feb 21 2022, 03:39 AM
Van B   I wonder what it sold for? And do you know if the ...   Feb 21 2022, 10:59 AM
wonkipop   I would say we’re it not for a low budget mecha...   Feb 21 2022, 03:41 PM
wonkipop   also that yellow car is one more confirmation that...   Feb 22 2022, 10:25 AM
Racer   What a rather well documented thread. Question.. ...   Feb 22 2022, 02:28 PM
wonkipop   What a rather well documented thread. Question.....   Feb 22 2022, 04:21 PM
Van B   @wonkipop I remember you saying that about the sw...   Feb 25 2022, 11:56 AM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Feb 25 2022, 08:40 PM
Van B   Its got some PoS KYB on the rear and who knows wha...   Feb 27 2022, 11:14 PM
wonkipop   Its got some PoS KYB on the rear and who knows wh...   Feb 28 2022, 02:15 AM
StarBear   Mine has the appearance group, sway bars and the b...   Mar 24 2022, 06:53 AM
wonkipop   for @Van B came across this image in obscure part...   Mar 27 2022, 01:37 AM
wonkipop   VAPOR EMISSION CONTROL SYSTEM update information....   May 22 2022, 01:03 PM
Van B   @wonkipop My car was not a frunk can. It is a re...   May 25 2022, 09:06 AM
wonkipop   @[url=http://www.914world.com/bbs2/index.php?show...   May 25 2022, 05:02 PM
Van B   Well, it may be inductive reasoning, but given the...   May 25 2022, 05:45 PM
wonkipop   Well, it may be inductive reasoning, but given th...   May 25 2022, 07:20 PM
JeffBowlsby   Wonk, You deserve an award for this charcoal ca...   May 26 2022, 08:52 PM
wonkipop   Wonk, You deserve an award for this charcoal c...   May 27 2022, 03:53 AM
wonkipop   Wonk, You deserve an award for this charcoal c...   May 28 2022, 01:34 AM
wonkipop   After all that research and thanks to all members ...   Jun 5 2022, 01:18 AM
JeffBowlsby   Niiiice. I see that architects hand... :drooley: ...   Jun 6 2022, 06:50 AM
wonkipop   Niiiice. I see that architects hand... :drooley:...   Jun 6 2022, 03:55 PM
StarBear   @wonkipop [b]@[url=http://www.914world.com/bbs2...   Jul 10 2022, 07:59 PM
wonkipop   great stuff @StarBear looks like you guys had a...   Jul 10 2022, 10:03 PM
StarBear   Yep; darn close to pinning it down, I’d say. Gre...   Jul 11 2022, 06:22 AM
StarBear   @rod911964 Rob - Here's the info we were di...   Jul 11 2022, 01:41 PM
wonkipop   @StarBear [b]@[url=http://www.914world.com/bbs2...   Jul 12 2022, 06:29 PM
Van B   Our cars really were like a beta test for the L-Je...   Jul 12 2022, 09:21 PM
StarBear   Our cars really were like a beta test for the L-J...   Jul 13 2022, 02:18 PM
StarBear   Found another 74 (?) this morning behind a garage....   Jul 13 2022, 02:20 PM
wonkipop   came across another plastic expansion tank 74. clo...   Jul 17 2022, 07:04 AM
StarBear   @wonkipop BTW, what color is yours, and what ty...   Jul 18 2022, 06:52 AM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Jul 18 2022, 07:50 AM
wonkipop   just been scratching through my files here a bit m...   Jul 18 2022, 08:02 AM
StarBear   @wonkipop Something special made - for you fro...   Jul 18 2022, 10:46 AM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Jul 18 2022, 04:48 PM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?...   Jul 18 2022, 07:35 PM
StarBear   [quote name='StarBear' post='3016011' date='Jul ...   Jul 19 2022, 06:54 AM
wonkipop   @[url=http://www.914world.com/bbs2/index.php?showu...   Jul 18 2022, 05:17 PM
Van B   @wonkipop how many US spec ‘74 1.8s do you thin...   Jul 18 2022, 05:54 PM
wonkipop   @[url=http://www.914world.com/bbs2/index.php?show...   Jul 18 2022, 06:45 PM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Jul 19 2022, 01:32 AM
Van B   I don’t know how I missed that label lol! Y...   Jul 18 2022, 08:08 PM
wonkipop   I don’t know how I missed that label lol! ...   Jul 18 2022, 08:48 PM
wonkipop   @Van B + [b]@[url=http://www.914world.com/bbs2/i...   Jul 19 2022, 12:12 AM
StarBear   @wonkipop As promised, here's the white font...   Jul 19 2022, 10:44 AM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Jul 19 2022, 03:17 PM
StarBear   "L" is for L-Jet, obviously.....   Jul 19 2022, 10:44 AM
Van B   First off, you two are ridiculous lol... Second, ...   Jul 19 2022, 11:01 AM
StarBear   Good move, Van. My thought is that 1.8s may be th...   Jul 19 2022, 01:06 PM
wonkipop   Good move, Van. My thought is that 1.8s may be t...   Jul 19 2022, 03:14 PM
StarBear   Great! Works for you so go with it. Can apprec...   Jul 19 2022, 07:05 PM
Van B   Well, I straight up missed this page... http://www...   Jul 20 2022, 09:57 AM
wonkipop   Well, I straight up missed this page... http://ww...   Jul 20 2022, 04:37 PM
Van B   Not really. You said you could figure exactly the ...   Jul 20 2022, 05:18 PM
wonkipop   Not really. You said you could figure exactly the...   Jul 20 2022, 05:22 PM
wonkipop   @davep i mentioned in pm that i had also seen an...   Jul 22 2022, 02:00 AM
StarBear   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Jul 22 2022, 05:34 AM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?...   Jul 22 2022, 06:02 AM
wonkipop   new data entered into tables on page 1 of thread. ...   Jul 29 2022, 10:25 PM
StarBear   @wonkipop I’m planning on redoing a sheet of t...   Jul 30 2022, 06:49 AM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Jul 30 2022, 07:07 AM
StarBear   [b]@[url=http://www.914world.com/bbs2/index.php?...   Jul 30 2022, 10:00 AM
wonkipop   [quote name='StarBear' post='3019138' date='Jul ...   Jul 30 2022, 07:11 PM
JeffBowlsby   I was thinking about the charcoal can air supply a...   Aug 5 2022, 06:18 PM
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