2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

underheating problem? how long does it take to reach operating temp?

Thread Tools
 
Search this Thread
 
Old 05-20-12 | 10:27 PM
  #26  
clokker's Avatar
Cake or Death?

iTrader: (2)
 
Joined: Jan 2007
Posts: 10,249
Likes: 63
From: Mile High
Originally Posted by beachFC
i just thought of something else interesting.. the original t.stat that i had in the car(not oem) would rest at 140* most of the time which i now concluded must have been 180*..

and upon replacing it with an oem t.stat from mazdatrix.. it now rests at 160* most of the time which must actually be 200*.. what the hell is going on?!

that means the non-oem one was working better?!
What is wrong with you?
You've already conclusively shown that the gauge is not reading correctly, yet you still use it as a worry goad.
The damn gauge is fucked up, nothing it tells you can be relied on. There is no reason to assume that 160° (displayed)= 180° (actual) or that the error is consistent through the range.
A $30 VDO Vision gauge/sending unit is more than accurate enough (and certainly better than what you got...) and should give you logical data to further worry about.
Old 05-20-12 | 10:31 PM
  #27  
Jet-Lee's Avatar
Unconventional
iTrader: (1)
 
Joined: Apr 2010
Posts: 329
Likes: 0
From: Visalia, CA
What's the temp after doing donuts or racing mustang's? Are you sure this malfunctioning temp gauge isn't causing your vibration at 20mph?
Old 05-20-12 | 10:33 PM
  #28  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by clokker
What is wrong with you?
You've already conclusively shown that the gauge is not reading correctly, yet you still use it as a worry goad.
The damn gauge is fucked up, nothing it tells you can be relied on. There is no reason to assume that 160° (displayed)= 180° (actual) or that the error is consistent through the range.
A $30 VDO Vision gauge/sending unit is more than accurate enough (and certainly better than what you got...) and should give you logical data to further worry about.
dang sorry.. haha i just thought that would be how it worked since its a mechanical gauge. i didnt think it could be completely off
Old 05-20-12 | 10:38 PM
  #29  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by Jet-Lee
What's the temp after doing donuts or racing mustang's? Are you sure this malfunctioning temp gauge isn't causing your vibration at 20mph?
i said it never goes above 160* holmes

and yeah, i'm pretty sure..
Old 05-20-12 | 10:40 PM
  #30  
MIDNFauciUSN's Avatar
Warheads on foreheads!
iTrader: (8)
 
Joined: Mar 2003
Posts: 1,738
Likes: 14
From: Back in Jax!
Originally Posted by Jet-Lee
What's the temp after doing donuts or racing mustang's? Are you sure this malfunctioning temp gauge isn't causing your vibration at 20mph?


I love this! I wake up and brush my TEETH with this ****!

Are all of this guys threads getting bashed or what?!
Old 05-20-12 | 10:41 PM
  #31  
Jet-Lee's Avatar
Unconventional
iTrader: (1)
 
Joined: Apr 2010
Posts: 329
Likes: 0
From: Visalia, CA
And I said, what is it, not what does it not go over.

I bet your vibration is causing harmonic imbalances in your oil that translates the vibrations into an electrical charge much like an electrical transformer that interferes with the propylene glycol in your coolant making it transfer heat improperly from the engine, so your gauge reads low.
Old 05-20-12 | 10:42 PM
  #32  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by MIDNFauciUSN


I love this! I wake up and brush my TEETH with this ****!

Are all of this guys threads getting bashed or what?!
**** pretty much.. i still get what i need out of them.
so it really doesn't bother me.

whatever makes people feel better i guess

Originally Posted by Jet-Lee
And I said, what is it, not what does it not go over.

I bet your vibration is causing harmonic imbalances in your oil that translates the vibrations into an electrical charge much like an electrical transformer that interferes with the propylene glycol in your coolant making it transfer heat improperly from the engine, so your gauge reads low.
nah, gauge has always read like this..
Old 05-20-12 | 10:47 PM
  #33  
Jet-Lee's Avatar
Unconventional
iTrader: (1)
 
Joined: Apr 2010
Posts: 329
Likes: 0
From: Visalia, CA
Then maybe the reverse is true....your malfunctioning gauge is causing your coolant to transfer the engine heat into the oil, make it boil, which we all know oil boils very vigorously, which then causes your vibration.

This only started recently when you did the donuts that brought your oil into contact with hot wire from the coolant temp sensor.
Old 05-20-12 | 10:49 PM
  #34  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by Jet-Lee
Then maybe the reverse is true....your malfunctioning gauge is causing your coolant to transfer the engine heat into the oil, make it boil, which we all know oil boils very vigorously, which then causes your vibration.

This only started recently when you did the donuts that brought your oil into contact with hot wire from the coolant temp sensor.
you should be a comedian
Old 05-20-12 | 10:51 PM
  #35  
Jet-Lee's Avatar
Unconventional
iTrader: (1)
 
Joined: Apr 2010
Posts: 329
Likes: 0
From: Visalia, CA
Your headlight switch should fix it. Make sure to use a standard radio shack 3-way toggle.
Old 05-20-12 | 10:52 PM
  #36  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by Jet-Lee
Your headlight switch should fix it. Make sure to use a standard radio shack 3-way toggle.
suprisingly enough my headlight switch works fine..
Old 05-20-12 | 10:53 PM
  #37  
Jet-Lee's Avatar
Unconventional
iTrader: (1)
 
Joined: Apr 2010
Posts: 329
Likes: 0
From: Visalia, CA
Are you sure? You think your gauge and u-joints are fine too.
Old 05-20-12 | 10:54 PM
  #38  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by Jet-Lee
Are you sure? You think your gauge and u-joints are fine too.
yeah. no i don't
Old 05-20-12 | 10:55 PM
  #39  
Jet-Lee's Avatar
Unconventional
iTrader: (1)
 
Joined: Apr 2010
Posts: 329
Likes: 0
From: Visalia, CA
Then why these two threads? Go replace them.
Old 05-20-12 | 10:55 PM
  #40  
misterstyx69's Avatar
Retired Moderator, RIP
iTrader: (142)
 
Joined: Sep 2005
Posts: 25,581
Likes: 133
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
Originally Posted by beachFC
i've been wanting to get one that will fit into the upper rad hose.. but i am a little concerned that its not going to give a consistant reading since it will not be able to sense the temp. with the thermostat closed. or am i trippin?
Ya,but if ya think about it,the engine is OK if the temp is under the the heat range of the thermostat opening.You are only concerned with the car's temp above 190 degrees.(so to speak).
it would only be bad if the thermo got stuck..and If you got a OEM thermo,it should last a long time.
Old 05-20-12 | 10:57 PM
  #41  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by misterstyx69
Ya,but if ya think about it,the engine is OK if the temp is under the the heat range of the thermostat opening.You are only concerned with the car's temp above 190 degrees.(so to speak).
it would only be bad if the thermo got stuck..and If you got a OEM thermo,it should last a long time.
yeah, you're right.. i'm already shopping around for the things i'll need
Old 05-20-12 | 10:58 PM
  #42  
beachFC's Avatar
Thread Starter
Bridge Burner.

iTrader: (13)
 
Joined: Apr 2011
Posts: 1,294
Likes: 2
From: Long Beach
Originally Posted by Jet-Lee
Then why these two threads? Go replace them.
because i needed opinions.. i am going to
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
stickmantijuana
Microtech
30
04-23-16 06:37 PM
CaptainKRM
2nd Generation Specific (1986-1992)
14
08-26-15 09:52 PM
charger-
Midwest RX-7 Forum
0
08-24-15 12:14 PM
gtcd
1st Generation Specific (1979-1985)
30
08-19-15 02:44 AM



Quick Reply: underheating problem? how long does it take to reach operating temp?



All times are GMT -5. The time now is 04:17 PM.