 Poor and crummy low end, under 2500 rpm |
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| Hammy |
 Dec 30 2006, 01:16 AM
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mr. Wonderful  Group: Members Posts: 1,827 Joined: 20-October 04 From: Columbia, CA./ Tuolumne Member No.: 2,978 Region Association: Northern California  |
I'm suffering from poor low end perfomance. Anything from idle to about 2500-2800 rpm feels gutless and bogged down. So this makes driving around town and driving off from a complete stop rather difficult. But at around 3k to 5k it pulls strong.
Is this a dizzy/timing problem? Not sure what dizzy it is.... recent tune up on ignition (points, cap) though. I have a spare Pertronix laying around from my old engine. Think it'll help? I know all about them blowing up with ignition left on. Just wondering if it's worth the try. This is a carbed 1.7. Thanks |
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| DBCooper |
Dec 31 2006, 06:32 AM
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
If one of the butterflies isn't closing completely you know for sure the carbs aren't synchronized. Follow Clayton's list to the letter, you have to get all those other things sorted before you can even start on the carbs. But since you're new to it all you might try looking at the procedures at Aircooled.Net. I think they're easier than the Redline procedures for a beginner to follow/understand, though I would definitely recommend the STE "Snail" sync tool over the traditional Unisyn. As you get more involved get Bob Tomlinson's book on Weber tuning from CB Performance, It's cheap and good from basics for the beginner all the way on up. It has all the info from the Redliine site plus a lot more.
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Posts in this topic
Hammy Poor and crummy low end Dec 30 2006, 01:16 AM
Rotten Robby
I'm suffering from poor low end perfomance. A... Dec 30 2006, 01:19 AM Aaron Cox carbs? - what jets? what motor size? what venturis... Dec 30 2006, 01:20 AM messix points and condenser!
while your at it pull th... Dec 30 2006, 02:13 AM Hammy Dual 40 Webers.....
1.7 engine. hydro lifters. G... Dec 30 2006, 02:35 AM Twystd1 Hammy,
Is this a NEW problem????
Or has this bee... Dec 30 2006, 03:21 AM
Hammy
Hammy,
Is this a NEW problem????
Or has this be... Dec 30 2006, 03:34 AM rhodyguy check the front 2 barrels of the carbs for unequal... Dec 30 2006, 10:43 AM Hammy
check the front 2 barrels of the carbs for unequa... Dec 30 2006, 04:13 PM Andyrew What is your timing set at?
What new parts are on... Dec 30 2006, 04:17 PM Twystd1 Man,,,
I wish I could go to Modesto..
And start... Dec 31 2006, 12:19 AM Hammy Andy, not sure on timing since I didn't set it... Dec 31 2006, 12:37 AM Twystd1 FIRST...
Go to www.redlineweber.com and start rea... Dec 31 2006, 01:14 AM Twystd1 That sticky or "out of sync" butterfly m... Dec 31 2006, 01:25 AM Hammy Thanks everyone.
And thanks Clayton. You've a... Dec 31 2006, 04:24 AM rhodyguy quick check. source a STE and determine if one car... Dec 31 2006, 11:29 AM |
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