Questions about tuning and timing dual carb 1.8 |
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Questions about tuning and timing dual carb 1.8 |
Slick914 |
Aug 5 2007, 12:36 PM
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#1
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Member Group: Members Posts: 236 Joined: 10-June 07 From: Lorain, OH Member No.: 7,802 |
I'm going to attempt a tune-up on my car and have many questions. I know most of these are basic questions, so please bear with me. Your help will be greatly appreciated!
My engine... 1974 1.8 Has dual Weber carbs. Not positive which ones. Distributor appears to be original? I'm assuming that the cam is original, really have no idea. I attached a couple pics that may help identify what I have. Sorry, it's raining outside and the car is covered, can't get better pics at the moment. Many questions, so I'll just ask them as they pop into my head, no specific order... 1. .016 gap correct for points? 2. At what rpm should I set timing? 3000, 3200, 3500? 3. What's a safe timing setting? 27, 28, 30, more? 4. Is it true if my point gap is set right, the dwell should be fine? 5. How do I sync my carbs? I have a synchrometer from previous owner. 6. Is my distributor supposed to have a vacuum line? Hmmm, I know there were some other ?'s but can't think of them right now. The car runs ok now, but I know I can get her to run a little smoother. When cold, it backfires through the carbs especially upon acceleration. Even when at running temp, it can be hesitant during acceleration at times. Once the rpms get up there some the hesitation goes away. These symptoms could be a common thing with the set-up I have for all I know, but I still need to give her a tune-up regardless. Attached thumbnail(s) Attached image(s) |
rhodyguy |
Aug 8 2007, 09:16 PM
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#2
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,188 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
did you get the weber book from cbperfomance yet? if not, stop wasting time and do so. follow the preinstall proceedure and start fresh. the 009 will work with your carbs. period. the performance will not be optimized but IT WILL WORK. i had one on my dual webered engine and dove for 1000s of miles prior to installing a mallory. looking at your pictures again, i'm not real enthused with your linkage. never seen one like it
k |
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