 can somebody give me a crash course on carbs |
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| bd1308 |
 Jun 28 2005, 07:04 PM
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#1
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Sir Post-a-lot  Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501  |
Just some pointers, and how to adjust different stuffs. I dont know which carbs are being installed, just that some are and it will be ready by friday.
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| firstknight13 |
Jun 28 2005, 07:27 PM
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#2
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Senior Member Group: Members Posts: 652 Joined: 25-March 05 From: manchester,ct. Member No.: 3,817 |
(IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) very easy you know the thing that goes under the you know what ; well ..don't touch that!!! then do the other thing and that will help this; then i did the top watch-a-macallit and that didn't work !! so the only thing that makes sense is to "PAY A PROFESSIONAL" if you want it done right!!! (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)
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| bd1308 |
Jun 28 2005, 07:30 PM
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#3
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
will the whatyamacallits stay put when adjusted.....?
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| Rouser |
Jun 28 2005, 07:34 PM
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#4
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Anti-Post Whore Group: Benefactors Posts: 597 Joined: 30-December 02 From: Citrus Park, Florida Member No.: 54  |
School Up; all installs are different, few standard set-ups.
Hope you're ready for Trial 'n Error, Hit or Miss, Better Off Dead, etc ... |
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| bd1308 |
Jun 28 2005, 07:37 PM
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#5
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
(IMG:http://www.914world.com/bbs2/html/emoticons/lol2.gif)
Took one look and realized that I'm screwed. |
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| Mueller |
Jun 28 2005, 07:41 PM
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#6
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914 Freak! Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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pretty vague description (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) figure about 1/2 a dozen different carbs could be going on it..... general pointer?? you turn screws, replace stuff and it works or it doesn't (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) I just hope who ever is installing them knows what they are doing...and once install you don't touch them until you know what you are doing 100% you can possibly fry a motor quicker with badly tuned carbs than with FI |
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| bd1308 |
Jun 28 2005, 07:43 PM
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#7
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
no double checks....what about a CO2 reading....of around or slightly more than 2% at a certain RPM....
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| J P Stein |
Jun 28 2005, 07:45 PM
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#8
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Go watch an expert tune the carbs & have him explain what he is doing & why.....pay him exrta if you must. Turn some screws under his tutilage....or it's 6 months of hit & miss + insufficient info from books. I did it the latter way...just happy I didn't break anything (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif)
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| Rouser |
Jun 28 2005, 08:19 PM
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#9
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Anti-Post Whore Group: Benefactors Posts: 597 Joined: 30-December 02 From: Citrus Park, Florida Member No.: 54 |
(IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) ... what a hoot! It's beginning already. Let's see ... while it's idling, you shove your middle finger way up the tailpipe, swab it around a bit, than taste it. If it's way too sooty, YOUR RUNNING RICH; turn the idle mixture screw in 1/2 turn and repeat above. In between head spins, don't forget to watch the idle speed with an automotive meter (Dwell-Tachometer), NOT with your uncalibrated dash-mounted clock-o-meter. Now the fun part begins, gettin' to trash the engine while you figure out if the low and/or high speed jets are anywhere NEAR correct. After all, without one of them there dynos the pros (a.k.a. MassIVE Jake) use, you get to eyeball it, a LOT. Are the spark plug electrodes arc-welded off? Shucks, you might be runnin' a tad LEAN; gotta richen those carbs up quick! Can you start a camp fire by just wiping your plugs on kindling and lighting it with music from your MP3 player? WHOAH, circuit's WAY too rich; it's a wonder you haven't detonated that Mittlemotor exhaust on your last trip to Blockbusters. CO2 reading my left nut; it's called reading your spark plugs, syncing your carbs, and calibrating your ear(s). From this point on, you're going to wake up with OEM D-Jet FI wet dreams ... |
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| flesburg |
 Jun 28 2005, 08:23 PM
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#10
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Senior Member Group: Members Posts: 506 Joined: 22-November 04 From: Pontiac, IL Member No.: 3,162 |
My opinion, which is worth not much!
Do not do it. After 10 years of experimenting with a set of 40mm webers on a 2.0 engine, and 10 years of turning this and that and trying every available set of main and idle jets, and after every different choke, even with a set of custom ones, and thinking we finally had them right, a guy with a stock 2.0 with fi (he did have european p&c's) could out pull us on the relatively short main straight at Grattan. We put the fi back on the motor, and I swear it is faster, and has more low end torque. And it just starts nice and runs, and runs and runs. Spend what it takes to make the fi work like it did new, and do not believe all the bull crap about how much better carbs are. The factory did not have switch to fi because it made less hp, or a less reliable engine. Change ignition systems, change exaust systems etc. but keep the stock fi. |
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| bd1308 |
Jun 28 2005, 08:27 PM
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#11
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
well it is a reversible process....so I could go back when i get my $$ for the bowlsby harness....
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| Rouser |
Jun 28 2005, 08:35 PM
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#12
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Anti-Post Whore Group: Benefactors Posts: 597 Joined: 30-December 02 From: Citrus Park, Florida Member No.: 54 |
If THAT'S the only thing holding you up, than the best advice ANYONE here is going to give you is, just PARK IT AND WALK until you buy the harness! Nothing to reverse! (yeah, right...) PROBLEM SOLVED! |
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| bd1308 |
Jun 28 2005, 08:39 PM
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#13
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
it's easier said than done. this is my D.D.....
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| grasshopper |
Jun 28 2005, 08:41 PM
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#14
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Advanced Member Group: Members Posts: 2,613 Joined: 10-December 04 From: Valdosta, GA Member No.: 3,258 Region Association: None |
I agree with flesburg, If you need to do it now, it would be okay,but it is alot more work than FI. If you planning on running the whole year, you'll have to change jets as it gets colder and warmer, FI adjusts itself. Most times also, your wiring gets messed up when changing to carbs, if not done right.... at least thats what happened to mine when the PO changed to carbs... I say that FI may be a little more complicated, and takes some skill, it is alot better than carbs. just my two cents....
THE GRASSHOPPER |
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| Rouser |
Jun 28 2005, 08:43 PM
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#15
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Anti-Post Whore Group: Benefactors Posts: 597 Joined: 30-December 02 From: Citrus Park, Florida Member No.: 54 |
Carb(s) is NOT a temporary band-aid ... Ask to borrow the Family Truckster, or walk, until the harness arrives ... Now you know what 914's are all about ... compromises. |
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| tat2dphreak |
Jun 28 2005, 08:45 PM
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#16
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
tuning carbs is a lost art, FI is much more a science... science can be learned easier than a dead language... a new harness is way cheaper than carbs too... priced weber 40s lately?
if you have an FI and a stock engine, it's worth more to get it to work, you'll like life better... carbs are fine, put all the lose hp (IMG:http://www.914world.com/bbs2/html/emoticons/bs.gif) behind... lose 5% either way, that's NOT the point... thing I'm trying to say is FI is a BETTER thing to invest time in learning... which is better if you want to be a structural engineer: Latin or physics? |
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| bd1308 |
Jun 28 2005, 08:49 PM
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#17
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
yeah but these arent gonna be brand new webers....which are over $1200.....
okay, I would be getting some carb experience with this.....so to me this isnt a total loss. things will be MUCH easier when I go back to school...as I could just leave the car when i go back to school for weeks at a time. |
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| Aaron Cox |
Jun 28 2005, 08:50 PM
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#18
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Professional Lawn Dart Group: Retired Admin Posts: 24,542 Joined: 1-February 03 From: Corona, CA Member No.: 219 Region Association: Southern California |
dude... Carbs on a FI cam suck.....
dont half ass it. go all the way, or not at all (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) no reversing.... |
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| bd1308 |
Jun 28 2005, 08:52 PM
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#19
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
if ya know latin (or lets say italian to be more applicable) you'll pick up more chicks... chicks dig a guy who knows how to work on carbs. I know hp will be put on the table, as will driveability, but i have lots of other things I need to work on and the 914 is kinda not at the top.....carbs will work for now, i have four places around me that do carb work.....and when i get my money together and get my stuff rebuilt....I will go back to FI.
I know FI is better, which is why i'm STILL a FI guy. I know alot about FI but learning latin sounds good too. |
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| bd1308 |
Jun 28 2005, 08:53 PM
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#20
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
this guy surprises me all the time. For all i know he did switch the cams.
took it in for a tune-up, he replaced my trunk rollers with the billet ones too. and my parking brake, did that too along with other things. |
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