Daniel Gibson
True Classic
I don’t really have anything new to add today…but this thread was sitting at 999 replies for several days, and I could not take it anymore!
Why thank you! I am not sure it is skill more than blundering through! If you do get one, beware the carburetor!blown away by your skills and working it from...well not much...to what it is. First car was a 70 850 spyder. paid for after 2 years in happy RVN.
Time to get back to one.
Hi Daniel,I don’t really have anything new to add today…but this thread was sitting at 999 replies for several days, and I could not take it anymore!
Wow. I do have to admit though, I too am a sucker for a build thread!Hi Daniel,
I just checked and there is ONE - count them, ONE - other thread in the Rear-Engine Fiats section that even hit the three-digit post count. (That honor belongs to Ramona300's thread about a track car, currently at 213.)
Pretty good for a thread that started by asking if there might possibly be any interest in your project.
Alright brain trust…I need your input. First, that idle jet holder is working perfectly! Secondly, the idle still isn’t right. Car fires off, and idles but surges a fair amount. It revs up great, but let off the gas and it doesn’t idle, but just goes to zero rpm and dies. Start it back up, and it idles, but again surgey.
Running .040 jets, which is what the original car came with. Tweaking with the timing doesn’t make a difference. Dinking with the mixture screw doesn’t really help either, except to kill it if you screw it all the way in.
Spraying carb cleaner around the carb finds no vacuum leaks, except for the very minor Weber mandatory leak around the throttle shaft. Spraying the stuff does create a hair raising chance of fire though!
Now, this may be my problem, but I have my doubts did a compression check. 128 on the first three, but 88 on number 4. As you may recall, this is the cylinder that ate the washer. I adjusted the valves again, and that brought it up over 90, so a minor change.
So, is the weak cylinder causing my idle issues? Anything else y’all can think of to check?
I like it. Will test tomorrow.How about disconnecting the plug wire to the suspect cylinder and see if there is a change for the worse. If there is, you know that it was at least partially contributing to the operation of the engine. If no change, you know there is trouble.
At idle I wouldn’t expect a low cylinder to have an effect. There is so little load on the engine at idle it shouldn’t be an issue.Alright brain trust…I need your input. First, that idle jet holder is working perfectly! Secondly, the idle still isn’t right. Car fires off, and idles but surges a fair amount. It revs up great, but let off the gas and it doesn’t idle, but just goes to zero rpm and dies. Start it back up, and it idles, but again surgey.
Running .040 jets, which is what the original car came with. Tweaking with the timing doesn’t make a difference. Dinking with the mixture screw doesn’t really help either, except to kill it if you screw it all the way in.
Spraying carb cleaner around the carb finds no vacuum leaks, except for the very minor Weber mandatory leak around the throttle shaft. Spraying the stuff does create a hair raising chance of fire though!
Now, this may be my problem, but I have my doubts did a compression check. 128 on the first three, but 88 on number 4. As you may recall, this is the cylinder that ate the washer. I adjusted the valves again, and that brought it up over 90, so a minor change.
So, is the weak cylinder causing my idle issues? Anything else y’all can think of to check?
I have plenty of jets, so I can change that no issue. Will try that as well.Daniel, I'm running 050 or 055, don't recall now. That was the recommendation of Pierce per Weber. Gas today is not the same as 1971
I don’t know! When they clog, I will investigate then. Otherwise, I don’t want to jinx it by opening it up!What is the idle jet size?
Sure!Can you post a link to the ebay listing?
Ah yes, the old Chinese Holley Weber clone trickI don’t know! When they clog, I will investigate then. Otherwise, I don’t want to jinx it by opening it up!
Sure!
CARBURETOR 32/36 DFEV PROGRESSIVE FOR Weber VW BUG FIAT FORD NEW DFEV E/CHOKE | eBay
This is the 32/36 DFEV model, which features an electric choke. Carburetor Fits For Weber DFEV 32/36 Electrical choke. Carburetor Fits for VW Bug Type 1, The progressive carburetor is jetted for Type 1 1300cc-1600cc based engines.www.ebay.com
I don’t know! When they clog, I will investigate then. Otherwise, I don’t want to jinx it by opening it up!What is the idle jet size?
Sure!Can you post a link to the ebay listing?
Yup. I went into it eyes open.Ah yes, the old Chinese Holley Weber clone trick
The stupid car has never idled or zoom zoomed better since I had it.
So far so good!