1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

fuel pump over heating = bad pump?

Thread Tools
 
Search this Thread
 
Old 08-11-08 | 11:39 PM
  #1  
rayadas's Avatar
Thread Starter
Full Member
 
Joined: Sep 2004
Posts: 158
Likes: 1
From: Slinger, WI
fuel pump over heating = bad pump?

i have a mallory fuel pump that is mounted behind the driverside bin. unfortunately i did run out of gas so the pump was running dry for a littl while. after that happened i've had problems on long drives where i will have to turn the car off, so the fuel pump can cool off. seeing as how the fuel pump isnt that cheap i figured i'd ask you guys what you think is the problem. if you need any more info let me know, thanks
Old 08-11-08 | 11:43 PM
  #2  
Rx-7Doctor's Avatar
Lives on the Forum
iTrader: (13)
 
Joined: Jul 2004
Posts: 10,584
Likes: 12
From: Oregon
Is the pump designed to pull fuel?
Old 08-12-08 | 01:16 AM
  #3  
Terrh's Avatar
STUCK. I got SNOWNED!!!!!
iTrader: (7)
 
Joined: Mar 2002
Posts: 8,723
Likes: 13
From: Windsor, On
possibly a plugged feed line or strainer in the tank, too.

fuel should be more than capable of cooling the pump, assuming it's getting it.
Old 08-15-08 | 10:03 PM
  #4  
rayadas's Avatar
Thread Starter
Full Member
 
Joined: Sep 2004
Posts: 158
Likes: 1
From: Slinger, WI
i have a brand new fuel system. new tank, 3/8 in. line, dual fuel filter setup, mallory fuel pressure regulator, and i've had one mechanic who specializes in rx7s said i should never have to worry about my fuel system, so i'm leaning towards a bad pump becuase of me running too long on empty. i'm not sure if i really want to wait to see if it really is bad, cuz then im stranded. new fuel pump not too expensive, but if u got any other suggestions let me know
Old 08-15-08 | 11:14 PM
  #5  
elwood's Avatar
Rotary Freak
iTrader: (1)
 
Joined: Mar 2003
Posts: 1,541
Likes: 25
From: https://t.me/pump_upp
Ask the Experts

Originally Posted by rayadas
i have a brand new fuel system. new tank, 3/8 in. line, dual fuel filter setup, mallory fuel pressure regulator, and i've had one mechanic who specializes in rx7s said i should never have to worry about my fuel system, so i'm leaning towards a bad pump becuase of me running too long on empty. i'm not sure if i really want to wait to see if it really is bad, cuz then im stranded. new fuel pump not too expensive, but if u got any other suggestions let me know
If your pump is like the one I used to have, the fuel doesn't cool it. The pump motor is above the impeller, so I don't think that running it dry would fry the motor. But why don't you ask the experts at Mallory instead of nephytes like me? They have a very good tech line.
Old 08-16-08 | 08:11 AM
  #6  
Dave Meyers's Avatar
Too many vehicles
 
Joined: Jul 2008
Posts: 139
Likes: 0
From: Kenosha, Wisconsin
How does the car behave, in other words, what are the symptoms, and how do you know when it is time to shut 'er down on long drives?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Th0m4s
Build Threads
25
02-26-19 02:04 AM
Queppa
New Member RX-7 Technical
8
09-02-18 09:53 AM
stickmantijuana
Microtech
30
04-23-16 06:37 PM
ChrisRX8PR
Single Turbo RX-7's
21
10-18-15 04:01 PM
befarrer
Microtech
3
08-22-15 05:52 PM



Quick Reply: fuel pump over heating = bad pump?



All times are GMT -5. The time now is 10:25 AM.