Author |
Message |
Bruce Samba Member
Joined: May 16, 2003 Posts: 17273 Location: Left coast, Canada
|
Posted: Sat Nov 26, 2016 12:34 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
AndrewCologne wrote: |
I waited 2 days, ....., it took the fuel only about 8 seconds when starting to reach the carb and make the engine firing up. |
I don't think you've solved anything.
You still need to find out why the fuel in the carb is leaking out after only 2 days. _________________
overheard at the portland Swap Meet... wrote: |
..... a steering wheel made from a mastadon tusk..... |
|
|
Back to top |
|
|
wimkever Samba Member
Joined: July 16, 2004 Posts: 411 Location: Holland (the Netherlands)
|
Posted: Sat Nov 26, 2016 5:01 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
Bruce wrote: |
I don't think you've solved anything.
You still need to find out why the fuel in the carb is leaking out after only 2 days. |
Here's my advice : read again.
AndrewCologne wrote: |
"Now with this working setup I did an even tougher check and closed the fuel tab while the engine was idling till it stopped so all fuel devices, lines and pipes in the chassis and engine compartment where free from fuel.
I waited 2 days, opened the fuel tab and tried to start the engine. |
_________________ a beetle is like a cocker spaniel, always funny but sometimes not listening |
|
Back to top |
|
|
wurd Samba Member
Joined: March 24, 2014 Posts: 37 Location: France
|
Posted: Wed Dec 14, 2016 1:43 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
Hi,
My carb is also leaking somewhere. It's losing around 2cm per day in the tank, and impossible to find where it is leaking. |
|
Back to top |
|
|
[email protected] Samba Member
Joined: June 02, 2011 Posts: 1593 Location: Louisville, ky
|
Posted: Wed Dec 14, 2016 1:50 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
wurd wrote: |
Hi,
My carb is also leaking somewhere. It's losing around 2cm per day in the tank, and impossible to find where it is leaking. |
It's winter. What a great time to take the carburetor off fill the float bowl to the 19 mm below the top and set it on a paper towel to find where the leak is leaking. |
|
Back to top |
|
|
wurd Samba Member
Joined: March 24, 2014 Posts: 37 Location: France
|
Posted: Wed Dec 14, 2016 2:08 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
It's what I did.
But it's leaking soooooooo slowly thats the drips are dry before touching the paper |
|
Back to top |
|
|
[email protected] Samba Member
Joined: June 02, 2011 Posts: 1593 Location: Louisville, ky
|
Posted: Wed Dec 14, 2016 3:53 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
wurd wrote: |
It's what I did.
But it's leaking soooooooo slowly thats the drips are dry before touching the paper |
There are special dyes for gasoline, maybe that will work. |
|
Back to top |
|
|
AndrewCologne Samba Member
Joined: September 05, 2015 Posts: 71 Location: Cologne
|
Posted: Wed Dec 14, 2016 5:08 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
When the float bowl is filled up just wrap a a piece colored paper towel or kleenex/handkerchief around the emulsion tube housing within the carb.
After a few minutes or an hour pull the kleenex gently out and you can see on the kerchief if its the seal of the emulsion tube which is leaking. If not then wrap a piece of kerchief around the drain on the carbs side and do the same check.
But honestly, ... a fuel loss of 2cm per day in the tank is huge and could be clearly seen at the specific part of the fuel system where the leak occurs.
Are you really shure that it's the carb which is leaking?
Such a loss in the tank could also result from a leaking fuel tab, fuel lines, filter connection etc. ... or a leaking tank itself. _________________ 1950 Split Window Grey
1955 Oval Window Stratosilber
1982 Porsche 911 3.0 SC Black |
|
Back to top |
|
|
wurd Samba Member
Joined: March 24, 2014 Posts: 37 Location: France
|
Posted: Wed Dec 14, 2016 6:37 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
Thanks I will try it.
It's the tank of the carb (float chamber), not the tank of the car. Sorry for my mad english |
|
Back to top |
|
|
AndrewCologne Samba Member
Joined: September 05, 2015 Posts: 71 Location: Cologne
|
Posted: Wed Dec 14, 2016 6:41 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
But even then, ... 2cm loss per day you would see. _________________ 1950 Split Window Grey
1955 Oval Window Stratosilber
1982 Porsche 911 3.0 SC Black |
|
Back to top |
|
|
wurd Samba Member
Joined: March 24, 2014 Posts: 37 Location: France
|
Posted: Wed Dec 21, 2016 12:44 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
How do you remove the emulsion tube from the 28 PCI ? |
|
Back to top |
|
|
wurd Samba Member
Joined: March 24, 2014 Posts: 37 Location: France
|
Posted: Sun Jul 23, 2017 11:21 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
I found the solution for my carb, and maybe it can help other people in the future.
It was the main jet carrier which was not tighten enough... |
|
Back to top |
|
|
paf Samba Member
Joined: February 24, 2015 Posts: 138 Location: France
|
Posted: Sun Mar 11, 2018 1:03 pm Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
Hello,
I jump into this post because I have the same problem. On the advise of Wurd I tightened the main carrier jet slightly few month ago, but I still experienced difficult start problems. I decided to remove the carb and see what amount of gasoline left inside : it was totally dry. I inspected the emulsion tube housing looking for cracks : nothing, but I admit that I am not able to see the junction between the base ot the emulsion tube housing ant the carb, only the junction of the jet to the emulsion tube housing. I decided to remove the main jet carrier, and at the first glance I did not see anything special, but I should. I tightened again the main jet carrier, but I felt something strange, and dismantled it again, and here what I saw :
It seems that it has been overtightened at one moment, maybe by me or someone else, but it has been rebuilt by a pro 2 years ago, and I always had (even before the rebuilt) start problem when the car has stopped for a while. When I dismantled it the first time I should have realized that something was wrong because the holes where already twisted, meaning that the over tightening has already damaged the main jet carrier. It may be the reason why the carb emptied within few days, because it was not compressing the washer enough due to the deformation. I hope so...
I bought main carrier today, and I will receive them within few days. I do not want to do it again, and was looking for tightening torque for it, without success. Can anyone tel me l where I can find the information ?
Thanks. _________________ Fred
Euro '58 L334 bug
http://www.thesamba.com/vw/forum/viewtopic.php?t=657333 |
|
Back to top |
|
|
AndrewCologne Samba Member
Joined: September 05, 2015 Posts: 71 Location: Cologne
|
Posted: Mon Mar 12, 2018 12:26 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
The tightening should be just "normal" like 15 or 20 Nm which is enough.
If its really the the part of main jet which is leaking and loosening gasoline, then you should also focus on the seal ring and that it should not be cured that much over all the years. _________________ 1950 Split Window Grey
1955 Oval Window Stratosilber
1982 Porsche 911 3.0 SC Black |
|
Back to top |
|
|
paf Samba Member
Joined: February 24, 2015 Posts: 138 Location: France
|
Posted: Mon Mar 12, 2018 1:54 am Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
Hello,
It was a fiber seal installed, is it the original type of seal or a copper one ? Thanks. _________________ Fred
Euro '58 L334 bug
http://www.thesamba.com/vw/forum/viewtopic.php?t=657333 |
|
Back to top |
|
|
nlorntson Crazy VW Lady
Joined: March 13, 2004 Posts: 3776 Location: Twin Cities, MN
|
Posted: Tue Mar 13, 2018 8:31 pm Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
paf wrote: |
Hello,
I bought main carrier today, and I will receive them within few days. I do not want to do it again, and was looking for tightening torque for it, without success. Can anyone tel me l where I can find the information ?
Thanks. |
Where does one find the main jet carrier? I need two. |
|
Back to top |
|
|
AndrewCologne Samba Member
Joined: September 05, 2015 Posts: 71 Location: Cologne
|
|
Back to top |
|
|
paf Samba Member
Joined: February 24, 2015 Posts: 138 Location: France
|
|
Back to top |
|
|
ZENVWDRIVER Samba Member
Joined: November 07, 2008 Posts: 3340 Location: N.E. Oklahoma
|
Posted: Thu Mar 15, 2018 6:36 pm Post subject: Re: Why is carb float bowl empty after sitting? |
|
|
.. had the same problem and re built another carb and installed it... problem solved... can sit a week and starts right up... rarely let it sit over a week. _________________ 5/50, pastel green 11G - SOLD
8/50, gray 11A Beetle
6/52, pastel green 11C - SOLD
11/4/52, black Zwitter - SOLD to my little bro.
1954 Porsche, pre A, with VW 36 horse- SOLD
1/54, black 11C Beetle - TRADED
2/55 Iceland green Beetle, on a 1965 pan
3/55 113 Beetle, stratos silver
1955 Messerschmitt KR175 - SOLD, sadly
1960 single cab
1962 SO33, with SO 42 interior
9/63 Pacific blue, Ghia
'87 Toyota MR2
'02 WestFORDia E-150, GAVE TO OUR SON
All super-heroes, wear a MASK |
|
Back to top |
|
|
|