Members with 74 1.8, information needed for history of cars |
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Members with 74 1.8, information needed for history of cars |
wonkipop |
Nov 25 2021, 04:35 PM
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#1
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Advanced Member Group: Members Posts: 4,253 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille |
@StarBear & @wonkipop want to hear from members who own 1974 1.8s.
to assist with a topic in originality section of the website. Cars need to be reasonably original with L jet fuel injection system intact. If you have the time and can help us with some information it would be great. information. 1. Vin Date - month and year (no need to post vin numbers if you don't want to). thats the date on the driver door sticker. 2. Karmann plate #. or if you have already done the maths, the day and week of the year the car began production. 3. Image of engine bay emission sticker (lhs above the air cleaner - white with red letters). sticker should say whether it is an EC-A or an EC-B engine and whether it is california + EPA or only EPA. 4. image of engine tune up sticker. this is the small white sticker that is on LHS engine tin just below fan shroud. most of them are gone by now, but some engines still have them. 5. image of the throttle body. image of the distributor. we are looking at the vacuum hose set up between the distributor and the throttle body. ----- (IMG:style_emoticons/default/beerchug.gif) |
wonkipop |
Nov 28 2021, 03:33 PM
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#2
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Advanced Member Group: Members Posts: 4,253 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille |
@L-Jet914
i think i have figured out what the modification on yours does and why it might have been done. its someone's idea of how to cancel retard at standing idle. the basic idea would be the advance on the dist is being pulled at idle and counteracts the pull in opposite direction from retard. retard at idle was an emissions thing. it made combustion cooler for lower NOx emission. the plumbing in the modification possibly also changes the way the distributor comes off advance as you deaccelerate. someone has done it because they believe it makes it drive a bit sweeter is my guess. it probably does, you are driving it. the only way to know what its doing would be to drive another 914 with the original set up and compare alongside. stuff gets done to these cars. esp. these ones with the first real smog engines. EDIT actually i might have that the wrong way around, re-reading your original description. it seems they have gone for a different source of vacuum for the retard than the throttle body? and maybe took the factory cap off the advance port and put it on the retard port. and connected up advance when it was never connected. could be as simple as that. some-one familiar with the EC-B engines looked at this one and decided it was "wrong" so they made an EC-B style set up? |
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