heat guage - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 03-12-2007, 05:19 AM
kruzr's Avatar
street rods forever
 
Last photo:
Join Date: Dec 2002
Location: Windsor
Age: 68
Posts: 324
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
heat guage

Hi,working on my bud's 66Vette,pretty well stock except for new alum. intake.Problem now is the heat guage goes to 240deg.Could I have wrong type sending (electric)unit.The new intake has smaller hole for sender .What type should I use.Car is not heating up...........thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-12-2007, 03:09 PM
vicrod's Avatar
life is a ride
 

Last journal entry: 2014
Last photo:
Join Date: Nov 2005
Location: Telford, PA
Age: 71
Posts: 1,306
Wiki Edits: 0

Thanks: 0
Thanked 56 Times in 52 Posts
Assuming the gauge goes to 240* with the ignition on and goes to the lowest part of the scale with the ignition off.

When you disconnect the wire at the sender the gauge should go to the lowest part of the scale.
If it does, the sender is bad.
If it does not, the wire is shorted to ground.

Replace the sender with one that fits the hole is the manifold. Probably 3/8" pipe thread. It cannot be adapted with pipe fittings. The probe must be in flowing water.

Start at your local, friendly, helpful NAPA and tell them the car year and model. They may have a listing. The sender you need was used for many years by GM and should be available in various thread sizes.

The sender is a thermistor, which means the resistance changes when the temperature changes. In this case the resistance goes down as the temperature increases.
At 70* the resistance should be approx. 630 ohms and at 212*, 120 ohms.
VDO guages operate on the same resistance range as GM.

If the NAPA route doesn't work you could get a VDO sender with the thread you need at a speed shop.

vicrod
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-13-2007, 04:51 AM
kruzr's Avatar
street rods forever
 
Last photo:
Join Date: Dec 2002
Location: Windsor
Age: 68
Posts: 324
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hi,some GM's had idiot lights on dash,would sending unit be different for electric guage?,one thing I did do was use white tape on fitting,maybe broke the ground circiut..........thanks for info...........
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-13-2007, 05:25 PM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Quote:
Originally Posted by KRUZR
Hi,some GM's had idiot lights on dash,would sending unit be different for electric guage?,one thing I did do was use white tape on fitting,maybe broke the ground circiut..........thanks for info...........

Doc here,

Yes, both questions are correct..

remove the teflon tape AND get the right sender resistance for your gauge.

Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 03-14-2007, 04:33 AM
kruzr's Avatar
street rods forever
 
Last photo:
Join Date: Dec 2002
Location: Windsor
Age: 68
Posts: 324
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for help guys,what a great site.
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Effects of paint on cooling components Animal General Rodding Tech 7 03-12-2006 05:10 PM
over heating delsman Engine 38 09-14-2005 08:32 PM
How are you going to heat your house this winter? CrashFarmer2 Hotrodders' Lounge 29 09-05-2005 06:11 PM
oil pressure guage brian400ex Engine 6 04-16-2004 12:18 PM
Damn fuel guage.... Magnus_Jager Electrical 2 03-27-2004 11:41 AM


All times are GMT -6. The time now is 05:50 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.