Jump to content

Electric fuel pump woes.


Guest Anonymous
 Share

Recommended Posts

Guest Anonymous

I am having the worst damn luck with electric fuel pumps. PO put a 320i head on the car..so no place to put mechanical one.

-Came with the basic square tic-tic-tic pump. Worked okay unless it got really hot in a parking lot. The pump would make loud ticking sounds and starve for fuel until I got the car moving.

-Put an in-tank pre-pump from e30 with pressure regulator. Worked pretty well, but without a return line on the car there was no place for excess pressure to go. Kept flooding the carb with gas.

-Tried a Wallbro pump that has a built in pressure regulator. Lasted 3 friggin weeks! Got hot outside, started to make LOUD tapping noise and just quit.

-Taking my chances for the autox this weekend with a tic-tic-ticker again.

Is the 6000ft altitude the problem. Gas has a lower boiling temp here(?)...so am I just vapor locking?

Any suggestions?

Link to comment
Share on other sites

Guest Anonymous

image002.jpg

URL: http://www.hbci.com/~tskwiot/2002.html

It is just like bending up big steel brake lines! (Only the pressure is much lower) Braze a return fitting (piece of 5/16" line) in the tank, or in pickup if you don't have one.

I added a new 5/16" steel line for my efi, used old steel line as return. I (like a few others) welded thru the plastic one when repairing rocker rust on the car and didn't want to use it at all after that!

Tim

Link to comment
Share on other sites

Guest Anonymous

line from the rear that comes up to the firewall which i assume is the vent line from the charcoal cannister in the rear... seems like it'd make a good (but small maybe) return line for a fuel pump. Good luck with it and keep us posted as to how it goes...

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Upcoming Events

×
×
  • Create New...