 what are the differences between a 73 and 74 2.0 engine |
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| crxnug |
 May 17 2010, 06:16 PM
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#1
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Member  Group: Members Posts: 81 Joined: 20-December 07 From: ontario, canada Member No.: 8,489  |
are there any differences between a 1973 and 74 2.0 engine,? are parts interchangeable, are there differences in the fuel injection? and info would be much appreciated
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| McMark |
May 17 2010, 06:20 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Not much. Are you looking for information regarding running a stock motor? Or in terms of a rebuild core?
For a rebuild core, they are the same. |
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| Tom_T |
May 17 2010, 06:31 PM
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#3
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California 
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QUOTE(crxnug @ May 17 2010, 05:16 PM)  are there any differences between a 1973 and 74 2.0 engine,? are parts interchangeable, are there differences in the fuel injection? and info would be much appreciated (IMG:style_emoticons/default/agree.gif) Mostly differences at the earlier MPS, CHT, ECU & other EFI components - otherwise they're the same basic GA engine 73 & 74, as McMark said. So you could transplant the appropriate MY's D-jet set-up if you're looking for a new engine/core, but save the old one if it's a matching number original engine to the car! |
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| JRust |
May 17 2010, 07:41 PM
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#4
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914 Guru Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest
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Yeah the same but for the Fuel Injection. You don't want to mix the FI between the years. Also don't mix the wiring between them. Dont ask me how I know (IMG:style_emoticons/default/dry.gif)
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| underthetire |
May 17 2010, 07:43 PM
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#5
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
one year (IMG:style_emoticons/default/piratenanner.gif)
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| JeffBowlsby |
May 17 2010, 08:12 PM
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#6
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914 Wiring Harnesses Group: Members Posts: 8,524 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Then '74 is by far the better engine...:tongue in cheek:
Actually there are few subtle and meaningless differences: The 74 has: 1 year less wear... Single port throttle body, no throttle shaft spring Charcoal canister relocated to the engine bay (@ mid-year 74) Some, not all, FI components were changed for the 74 model as mentioned above Thaz all... |
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| detoxcowboy |
May 17 2010, 08:54 PM
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#7
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Senior Member Group: Members Posts: 1,294 Joined: 30-January 08 Member No.: 8,642 Region Association: Africa |
QUOTE(crxnug @ May 17 2010, 05:16 PM) are there any differences between a 1973 and 74 2.0 engine,? are parts interchangeable, are there differences in the fuel injection? and info would be much appreciated For a more detailed of what changed and what is inter changeable and what is preferd.. link below http://members.rennlist.com/pbanders/DJetParts.htm The main thing is if your using the 037 ecu from '73 then you must use the corresponding cht w/ resistor and mps.. that really is the only major rule.. change the ecu to 74-76 and the fi components are alot more flexible.. 74 stock is a good bet as then you can go alot of ways when in need for a part. anything more than that will just confuse your question.. read that link it will be your best guide.. |
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