 Tuning dual Webers, Looking for input in the PNW |
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| TC 914-8 |
 Dec 8 2011, 09:53 PM
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Senior Member  Group: Members Posts: 830 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest 
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I just found out my wifes coworker, The Dr Vet's husband, has a 75 2.0 with a dual Weber downdraft conversion. I stopped by last weekend to take a look. it has some minor electrical issues which I should be able to sort out fairly quick with proper diagnostics. Horn, lights etc..
One of his main concerns is mis firing and sputtering during acceleration. It is a fairly clean set up bought from a guy in Bremerton back in 2000. I forgot his name but should be active on this site. so under slight acceleration, reving the engine it sputters around 2500 RPM. with no gauges or tools I noticed the F/A screws on the driverside carb were out different ratios. I gave them a slight adjustment and it seemed to help. I figure we need a air flow meter to put over each venturi and dial in each barrel evenly. (IMG:style_emoticons/default/idea.gif) Being a V-8 guy I would slap on a vaccume gauge and adj from there.... I did not see any vacume ports so its all new to me (IMG:style_emoticons/default/confused24.gif) How do you boys dial these babys in? I was also under the impression a stock FI cam is not really compatible running carbs... (IMG:style_emoticons/default/confused24.gif) Shoot me some ideas , once I get him running, I will have a new teener buddy in the neighborhood to tool around with since you Teener Tuesday boys are afraid of coming accross on the ferry (IMG:style_emoticons/default/poke.gif) |
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| a914622 |
Dec 9 2011, 10:36 PM
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Member Group: Members Posts: 316 Joined: 12-August 10 From: northwest Member No.: 12,048 Region Association: Pacific Northwest |
Hey i have a snail syncer i could let you use to synce the carbs. I will be over in the east squim bay area deer hunting the 17th .
I would make sure the carbs are cleaned out if they are dirtty. But are you/him running a 009 dist? I rember i had a huge dead spot at 2400-2600 on my last 2.0 with 40's on it. Just a thought but i rigged a vacuum line back on a stock dist. jcl |
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| mrbubblehead |
Dec 9 2011, 10:55 PM
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Twodollardoug Group: Members Posts: 1,155 Joined: 17-December 10 From: calimesa ca. Member No.: 12,492 Region Association: Southern California |
QUOTE(a914622 @ Dec 9 2011, 08:36 PM)  Just a thought but i rigged a vacuum line back on a stock dist. jcl (IMG:style_emoticons/default/agree.gif) same here. then i installed a SVDA distributor. now it pulls like a freight train. |
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Posts in this topic
TC 914-8 Tuning dual Webers Dec 8 2011, 09:53 PM
Ductech I would start with thinking about how long this ca... Dec 8 2011, 10:06 PM
TC 914-8
I would start with thinking about how long this c... Dec 8 2011, 11:52 PM Ductech Some people used old sync gauges that would go ove... Dec 8 2011, 11:59 PM nathansnathan
Some people used old sync gauges that would go ov... Dec 9 2011, 09:40 AM mrbubblehead i use a snail for synchronizing and an innovate ai... Dec 9 2011, 12:07 AM jaxdream Don't forget to adjust the valves before synci... Dec 9 2011, 08:42 AM rdauenhauer and there is the old standby...ditch the carbs ... Dec 9 2011, 09:51 AM stownsen914 Cars that haven't been run much can obviously ... Dec 9 2011, 11:22 AM stownsen914 Oops duplicate post Dec 9 2011, 11:25 AM messix Have I not taught you any thing?
Go give it an I... Dec 9 2011, 11:36 AM J P Stein There are a number of things that could be causing... Dec 9 2011, 11:50 AM pt_700 slightly ot but, i had an old mechanic friend once... Dec 9 2011, 12:48 PM TC 914-8 Wow, thanks guys for all the input, I like the Car... Dec 9 2011, 09:09 PM TC 914-8
Hey i have a snail syncer i could let you use to ... Dec 10 2011, 01:05 AM |
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