1977 280z - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
User Tag List

 
LinkBack Thread Tools
post #1 of 6 (permalink) Old 01-04-2017, 06:26 PM Thread Starter
Junior Member
 
Join Date: Jan 2017
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
1977 280z

Hi all, I am new to this forum. I have a 1977 280z and it runs and drives good...mostly. Recently went to start and it started but lots of blue smoke so i think its the valve stem seals. The fuel gauge doesnt work but i think it is the sender, is there a way to rebuild this rather than buy a new one? I plan on changing the oil and new M/C cyclinder and slave cylinder but otherwise it is a fun little car.

Thanks
fjernigan280 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 01-04-2017, 08:04 PM
Senior Member
 
Join Date: Sep 2015
Location: Central FL
Posts: 503
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Quote:
Originally Posted by fjernigan280 View Post
Hi all, I am new to this forum. I have a 1977 280z and it runs and drives good...mostly. Recently went to start and it started but lots of blue smoke so i think its the valve stem seals. The fuel gauge doesnt work but i think it is the sender, is there a way to rebuild this rather than buy a new one? I plan on changing the oil and new M/C cyclinder and slave cylinder but otherwise it is a fun little car.

Thanks
down load he FSM (its online) review the fuel sending unit wiring. Test the unit by shorting the correct wires at the plug to the wire harness. If the gauge works its prob the sender.


buy a new O ring for the sending unit, loosen the retaining ring, remove the sender. I will prob be all corroded.
clean it with some PB blaster or evap o rust. This will prob fix it. check the operation with a resistance check to make sure it changes as you move the float up and down, prob between 150-10 ohms.


Reinstall, make sure it installed level.
Dave M is offline  
post #3 of 6 (permalink) Old 01-04-2017, 10:02 PM Thread Starter
Junior Member
 
Join Date: Jan 2017
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
Quote:
Originally Posted by Dave M View Post
down load he FSM (its online) review the fuel sending unit wiring. Test the unit by shorting the correct wires at the plug to the wire harness. If the gauge works its prob the sender.


buy a new O ring for the sending unit, loosen the retaining ring, remove the sender. I will prob be all corroded.
clean it with some PB blaster or evap o rust. This will prob fix it. check the operation with a resistance check to make sure it changes as you move the float up and down, prob between 150-10 ohms.


Reinstall, make sure it installed level.
Okay, Thanks

Does this mean i dont have to drop the fuel tank?
fjernigan280 is offline  
 
post #4 of 6 (permalink) Old 01-05-2017, 01:51 AM
Junior Member
 
Join Date: Dec 2016
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Welcome!
edit01 is offline  
post #5 of 6 (permalink) Old 01-05-2017, 10:15 AM
Senior Member
 
Join Date: Sep 2015
Location: Central FL
Posts: 503
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
You do NOT have to drop the tank. Helps a lot if you can elevate the rear of the car and remove the pass side rear wheel, but you don't have to.
You have to snake out the sending unit (its side mounted so you want to be low of fuel) by twisting and turning as you remove it. there are two sensors, a float for fuel level and a thermistor for low fuel light.


remember the connectors are old so use care when removing so you don't end up breaking wires and connectors. there is plenty of post on this so use the search.
Dave M is offline  
post #6 of 6 (permalink) Old 01-05-2017, 08:51 PM Thread Starter
Junior Member
 
Join Date: Jan 2017
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
Quote:
Originally Posted by Dave M View Post
You do NOT have to drop the tank. Helps a lot if you can elevate the rear of the car and remove the pass side rear wheel, but you don't have to.
You have to snake out the sending unit (its side mounted so you want to be low of fuel) by twisting and turning as you remove it. there are two sensors, a float for fuel level and a thermistor for low fuel light.


remember the connectors are old so use care when removing so you don't end up breaking wires and connectors. there is plenty of post on this so use the search.
Thanks so muchhhh, I now have a working a fuel gauge. Next thing I have to do is the valve stem seals.
fjernigan280 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



  Similar Threads
Thread Thread Starter Forum Replies Last Post
2 complete cars: 1977 and 1977.5 280z MasonSteele Cars for Sale: 1970-83 240Z, 260Z, 280Z, 280ZX 6 05-21-2015 11:12 AM
Help on 1977 280z chase4556 70-83 Tech Discussion Forum 8 03-19-2006 01:55 AM
1977 280Z GreggWSmith 70-83 Tech Discussion Forum 4 01-22-2002 10:36 PM
1977 280Z Cody 70-83 Tech Discussion Forum 9 02-06-2001 09:11 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 


Content Relevant URLs by vBSEO 3.6.1