1974 914 1.8, the mystery of the EC-A and EC-B Options

[wonkipop]

@wonkipop our 74 1.8s never came with the timing plug with a vacuum fitting to allow air to be fed into the canister did they? There is a (US spec) 74 1.8 for sale in Austria on the 914World Facebook group page. The ECU is also not mounted behind the battery.

relax mate, that freak of nature is when they fitted an AC unit,
its an aftermarket thing,/dealer thing,
both shifting the ECU and sticking the hose into the timing plug.

don't worry, your dear old dad handed you down the real thing.
a dinosaur from the birth of modernism.,
keep it sweet. (IMG:style_emoticons/default/beerchug.gif)

[wonkipop]

FYI - the Appearance Group was the same for 1.8L and 2.0L cars but the AG items varied from model year to model year. Chrome bumpers were not included in the AG in 1974...they were an extra cost item.

f'n great when the voice of authority comes in and he is not wavering, (IMG:style_emoticons/default/beerchug.gif)

[StarBear]

FYI - the Appearance Group was the same for 1.8L and 2.0L cars but the AG items varied from model year to model year. Chrome bumpers were not included in the AG in 1974...they were an extra cost item.

f'n great when the voice of authority comes in and he is not wavering, (IMG:style_emoticons/default/beerchug.gif)

Ah, that kind of explains it. More than one person has tried to convince me that I had changed out my bumpers which I know I hadn’t. Mine is “standard” 1974 AG, while the chromes are “premium” 1974 AG.
Gheesh…. (IMG:style_emoticons/default/beer.gif) (IMG:style_emoticons/default/blink.gif)

[L-Jet914]

@wonkipop our 74 1.8s never came with the timing plug with a vacuum fitting to allow air to be fed into the canister did they? There is a (US spec) 74 1.8 for sale in Austria on the 914World Facebook group page. The ECU is also not mounted behind the battery.

relax mate, that freak of nature is when they fitted an AC unit,
its an aftermarket thing,/dealer thing,
both shifting the ECU and sticking the hose into the timing plug.

don't worry, your dear old dad handed you down the real thing.
a dinosaur from the birth of modernism.,
keep it sweet. (IMG:style_emoticons/default/beerchug.gif)

Was just curious. I didn't know they moved that much stuff around when they installed that garbage that robbed even more power from our already meek engines haha.

[L-Jet914]

Random question regarding the following years of 914 (75-76) what did the 7th pin add to the L-Jet system? I was reading through wiring diagrams on Jeff's website but can't seem to track it down.

[wonkipop]

Random question regarding the following years of 914 (75-76) what did the 7th pin add to the L-Jet system? I was reading through wiring diagrams on Jeff's website but can't seem to track it down.

it concerned a revision to the wiring design of the incoming air temp sensor.

i'll see if i can dig it out.
there was a thread in the garage section where the AFM internals were discussed.
basically the temp sensor got its own distinct connection (7th pin).
i think maybe the location of the temp sensor was also revised in the afm unit itself as well but not entirely 100% on that.



EDIT.
thread here.

http://www.914world.com/bbs2/index.php?sho...=360434&hl=

[L-Jet914]

Random question regarding the following years of 914 (75-76) what did the 7th pin add to the L-Jet system? I was reading through wiring diagrams on Jeff's website but can't seem to track it down.

it concerned a revision to the wiring design of the incoming air temp sensor.

i'll see if i can dig it out.
there was a thread in the garage section where the AFM internals were discussed.
basically the temp sensor got its own distinct connection (7th pin).
i think maybe the location of the temp sensor was also revised in the afm unit itself as well but not entirely 100% on that.



EDIT.
thread here.

http://www.914world.com/bbs2/index.php?sho...=360434&hl=

Thank you for the information. Interesting how things changed slightly.

[StarBear]

@wonkipop
@Van B
@L-Jet914
Curious - while doing some post driving season cleanup I removed the rain tray for the first time ever. Noticed that the two rear outer screws are yellow zinc plated and slight longer than the other four bronze-like finish, slightly shorter screws. See pics below.
Any experience, history, or insight? (IMG:style_emoticons/default/confused24.gif) To my belief these are original and, again, yet another quirk or something purposeful? (IMG:style_emoticons/default/confused24.gif)
Of course, this follows my recent discovery (confirmed as correct) two different screws used to hold the speaker housings.

[wonkipop]

well well well.

i'd have to get the screws out to see how long they are.
but ...... i may not have your set up. there are a couple of bolts involved in mine.

whats on mine is 3 phillips head screws across the rear edge of the rain tray (trunk lid edge).
they could be different lengths but i would have to take them out to find out.
but all three look the same in terms of diam.

across the long side towards cabin there is 2 bolts (sides) and 1 screw (centre). the 2 bolts are in circular recessed depression, the bolts look to me to be identical to the same small bolts that hold on the rain funnels. M6 bolts. very small. accessible by a socket. the screw could be a different size to the three along the rear edge. i'd have to get it out to look. it looks like it is smaller. to my eye, smaller diam head.
EDIT - CORRECTION - i just went and had a proper look with the torch, it was a bit dark out in the garage earlier. its three identical little bolts across the back. all the same.
M6. not a screw in centre.

the finish on them all is silver. any bronze finish long gone and oxidised away.

i've never changed them in 33 years. but i guess they could have been changed by first owner or original service mechanics. now that i look at it the bolts seems out of place even though same as funnel bolts. why wouldn't they all be screws. but i dunno.
i've never touched them.

being curious i had a look at the PET.
its got the info for only the early rain tray!
- they don't appear to have updated the PET.
it lists only two screws. 2 of AM6x20.

so i had a look at the factory workshop manual. it does not appear to have the later rain tray either. and contrary to PET it lists 1 AM6x15 and 1 AM6 x20. the longer screw appeared to hold the funny little rubber handle that was fitted left hand side of the early type rain tray. the back of the early type rain tray seemed to hang on three strap like things with whats called clamping discs. having never seen an early rain tray or early car up close i'm not really clear on it.

but anyway none of my material has anything on our later rain trays.

[StarBear]

@wonkipop Interesting! I couldn’t find anything either. All mine are screws with the same Phillips head but different finishes and lengths. No bolts, except as you noted those holding the rain funnels.
Let’s see if any other 1.8 gurus have info. Probably either keep mine the way they are or replate the five that are bronze finished ( but only on the heads). Might (?) I have painted them in the past? The 80s were a bit of a blur….. (IMG:style_emoticons/default/dry.gif)

[wonkipop]

@wonkipop Interesting! I couldn’t find anything either. All mine are screws with the same Phillips head but different finishes and lengths. No bolts, except as you noted those holding the rain funnels.
Let’s see if any other 1.8 gurus have info. Probably either keep mine the way they are or replate the five that are bronze finished ( but only on the heads). Might (?) I have painted them in the past? The 80s were a bit of a blur….. (IMG:style_emoticons/default/dry.gif)

had a scout through files from EC-A EC-B research.
this is best i could do for a photo.
its from a car that was sold on BAT about 6 months back that was down, but pretty unmolested. had all sorts of original stuff on it including recall sticker. reliable i would say.

you can only see the screw retaining rain tray on truck lid edge.
mine look similar to this. possibly were cadmium once but its oxidised.

the bolt i am talking about being like rain funnel bolts is in the rear recess either side.
where arrow points.

nothing anywhere in my files had a clear view of it on any cars. its just recessed far enough it never appears visible on any photos. (IMG:style_emoticons/default/sad.gif)
have drawn a blank there.

logic tells me they should all be screws.
but then again....we sure have found plenty of odd bits of logic when it comes to the 1.8s. anyway i wouldn't swear on mine.

interesting prompt from you. never taken a close look at those rain tray fixings before.

(IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/beer.gif)

[wonkipop]

PS @StarBear

if you really wanted to know, @dr914@autoatlanta.com has his very original white 1.8 in his collection.
that would be guaranteed unmolested. he'd be able to take a look and tell you whats there for sure.

then we'd both know. (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/beerchug.gif)


EDIT
i went on auto atlanta website.
this is their kit for fixing late rain tray.



now this does not entirely make sense to me either.
its only got 5 screws. you can see varying sizes.

i've definitely got 6 fixing points on mine.
three across cabin side (which have the M6 boltss).
three across the trunk side (which have M6 phillips head screws).

(IMG:style_emoticons/default/confused24.gif)

dunno. need a certifiable reference vehicle.
that white one in his collection would probably be pretty trustworthy.

[StarBear]

@wonkipop Yep, that kit makes no sense.
As for that white 1.8 lead, do you mean George at AA, who has a different Dr914 handle? Didn’t see it on @dr914 member summary.

[wonkipop]

@wonkipop Yep, that kit makes no sense.
As for that white 1.8 lead, do you mean George at AA, who has a different Dr914 handle? Didn’t see it on @dr914 member summary.

yes george at AA

[wonkipop]

@StarBear

i found this on a thread here.



http://www.914world.com/bbs2/index.php?showtopic=305228


i would say the two longer screws with washers and 1 shorter screw match mine across the trunk side. i can still see the rubber spacers in mine. they are a bit perished.

and i'm going to guess that the 3 M6 bolts on mine across the cabin side probably are not original. someone maybe took the rain tray off before i got the car 33 years ago and maybe lost the screws?

or heinrich ran out of screws at the karmann factory 50 years ago and walked across to the funnel box and borrowed some of those M6 bolts before he knocked off for a pilsner. (IMG:style_emoticons/default/beer.gif)

[StarBear]

@wonkipop Now those two longer screws make sense. I think I have an extra pair of those valence spacers; mine are gone.

Or, Heinrich caught a glimpse of Greta bending over to grab a rocker panel and got way distracted and dizzy! (IMG:style_emoticons/default/biggrin.gif)

[StarBear]

I checked and believe the comment in the thread that these spacers are different than the rocker spacers. The bolts are much thicker so the holes in my pair of spare rocker panel spacers were much too small. Seems right as the rocker panel bolts are much thinner. Can’t speak to the valence spacers as I’ve not compared to them.
No problem, though. Worked with my assistant Makita and got the job done!
(IMG:style_emoticons/default/smile.gif)

[L-Jet914]

I would have to look at my screws now. I think all of my screws are silver in color and if they had any yellow zinc plating, it's all gone now. I have since removed my rain tray as I no longer drive the vehicle during the rainy months (or lack of rain here haha). I know for a fact that none of the spacers are present anymore.

[StarBear]

I would have to look at my screws now. I think all of my screws are silver in color and if they had any yellow zinc plating, it's all gone now. I have since removed my rain tray as I no longer drive the vehicle during the rainy months (or lack of rain here haha). I know for a fact that none of the spacers are present anymore.

Got new short yellow zinc ones at zcar site (240/260/280 Z).. if you need the exact site just let me know. They each come with the washer and a lock washer. Yay

[Van B]

Fellas!

NOS TTS for our cars on ebay:
https://www.ebay.com/itm/255490292323

I bought one so… three left!