Author Topic: mculloch mac 3514 carb fuel line replacement  (Read 325 times)

0 Members and 0 Guests are viewing this topic.

Offline vidaliaman

  • 3 cube
  • *
  • Posts: 10
  • Karma: 0
mculloch mac 3514 carb fuel line replacement
« on: July 19, 2014, 04:04:15 pm »
i have been messing with this fuel line replacement and don't seem to have it correct, there are 3 lines, 2 lines into the tank, the lowest line in the tank i have it in the tank only about an inch(where does the other end attach to?), the upper line with the fuel filter on the end attaches where?

also it looks as though there is 2 different sizes of fuel line

also lets call the attachment areas to the carb as the elbow tube and the straight tube, i believe the fuel pump end is the straight tube and the elbow tube is closest to the fuel tank

Help

thanks for the help on the carb rebuilt also

dave

Share on Facebook Share on Twitter


Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: mculloch mac 3514 carb fuel line replacement
« Reply #1 on: July 19, 2014, 05:34:00 pm »
Here again, a picture or two sure would help us help you.

I did one of these about 3 years ago. I cannot remember the details as you mention.

The lines to the tank - The one that just sticks in the tank a little ways and that's all goes to the outlet of the purge bulb. It is a fuel return line.

The line with the filter on it goes to the pump part of the carb. This fitting on the carb is likely within the main body of the carb.

The other fitting on the carb goes to the fuel purge bulb.

The fuel purge bulb has a check valve in it. If you get the lines backwards, The purge bulb will not pump and the engine will never run for it will suck air back though that purge bulb.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline vidaliaman

  • 3 cube
  • *
  • Posts: 10
  • Karma: 0
Re: mculloch mac 3514 carb fuel line replacement
« Reply #2 on: July 20, 2014, 06:27:44 pm »
there are 2 different sizes of fuel lines, i believe the line with the filter is the larger size and it attaches to the elbow fitting closest to tank, any idea what size line goes where and am i correct the filter line from the tank goes to the elbow tube on the carb?

thanks dave

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: mculloch mac 3514 carb fuel line replacement
« Reply #3 on: July 20, 2014, 06:32:40 pm »
It's been four years since I've looked at one of those?

If I saw a picture of the carb I could tell you.

The filter line goes into the main carb body on the pump side..

The line to the purge pump comes from the regulator side of the carburetor.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

 

Related Topics

  Subject / Started by Replies Last post
11 Replies
840 Views
Last post October 30, 2016, 09:16:26 am
by Sty57
6 Replies
634 Views
Last post January 11, 2013, 05:01:34 pm
by Cut4fun .
9 Replies
301 Views
Last post November 17, 2017, 08:22:36 am
by Cut4fun .
2 Replies
388 Views
Last post August 26, 2013, 01:39:22 pm
by Bluegill
40 Replies
688 Views
Last post January 30, 2014, 10:44:24 am
by 660magnum
9 Replies
1480 Views
Last post April 18, 2014, 01:04:51 am
by Phillip Guidry
15 Replies
1552 Views
Last post April 30, 2014, 11:58:07 pm
by Eccentric
15 Replies
671 Views
Last post July 19, 2014, 03:56:02 pm
by vidaliaman
2 Replies
199 Views
Last post August 04, 2014, 01:19:42 pm
by Cut4fun
0 Replies
201 Views
Last post February 24, 2017, 07:48:48 pm
by Holbie