Author Topic: Quick&Short T-Stat question!  (Read 8697 times)

March 17, 2009, 07:11:23 pm

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« on: March 17, 2009, 07:11:23 pm »
I thought the T-stat i got was an 87 degree thermostat.

While im driving the needle will stay steadily just a hair past the 2nd last white line on my gauge (so, one line hotter than middle)

I have this terrible feeling all the time that my dash is about to buzz but my oil temp is fine. it's a little warm i guess? 180-190F roughly.

Are there T-stats for our beauties that will open at like 95? or something.

Anyone else with a gauge that reads as high as mine?

The temp light no longer flashes now a couple hundred K's after rebuild which pleases me. But now the batt light is cooonnnstantly on.  :roll: go figure. Perhaps its the V regulator which i will hope and pray for.
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #1March 17, 2009, 08:52:27 pm

cyrus #1

  • Veteran

  • Offline
  • ***

  • 360
Quick&Short T-Stat question!
« Reply #1 on: March 17, 2009, 08:52:27 pm »
I have an 87° thermostat in my gasser.  This is where the needle rides.



I've seen thermostats listed that are 82°,87°,90° and 92°.  I used to have a 90° in mine and it rode roughly straight up and down.

I wouldn't worry too much about your oil temps as they sound like they are right in the ball park.  Do you have an oil cooler?
Cody

2002 Jetta TDI
2000 Jetta TDI - R.I.P.
1990 Jetta 8v-Eventually to be 1.6TD

Reply #2March 18, 2009, 02:12:12 am

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« Reply #2 on: March 18, 2009, 02:12:12 am »
I have an oil cooler that i haven't put in...
This is where MY needle resides and sits very steadily under heavy and no load..
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #3March 18, 2009, 04:41:13 am

burn_your_money

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 8999
  • Personal Text
    Bright, On
Quick&Short T-Stat question!
« Reply #3 on: March 18, 2009, 04:41:13 am »
I wouldn't worry about it too much. Those are 20 year old gauges/wires/senders. Mine runs just on the other side of that white line Ed, and it's always happy.

Get a real gauge and see what's what.
Tyler

Reply #4March 18, 2009, 09:16:35 am

jtanguay

  • Veteran

  • Offline
  • ***

  • 6879
Quick&Short T-Stat question!
« Reply #4 on: March 18, 2009, 09:16:35 am »
my gauge sat near where you point to ed when i had a 'faulty' thermostat. i should have checked the opening temperature before installation.  when i finally ripped it out and tested it, it was opening at near boil  :shock: so i installed an '87 and it sat just below halfway, and was running fine.


This is how we deal with porn spammers! You've been warned.

Reply #5March 18, 2009, 01:52:20 pm

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« Reply #5 on: March 18, 2009, 01:52:20 pm »
Dang man. I tested mine first to see IF it opened ... i didn't test at what temp.

It's a brand new sender sending to the gauge so ... perhaps the T-stat is junk? I don't really want to drive around and wait for it to get stuck closed :P THAT would suck. Thanks guys.
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #6March 18, 2009, 05:11:16 pm

cyrus #1

  • Veteran

  • Offline
  • ***

  • 360
Quick&Short T-Stat question!
« Reply #6 on: March 18, 2009, 05:11:16 pm »
Quote from: "Smokey Eddy"
perhaps the T-stat is junk?


It's possible.  I had one that was dead straight out of the box.  :evil:
Cody

2002 Jetta TDI
2000 Jetta TDI - R.I.P.
1990 Jetta 8v-Eventually to be 1.6TD

Reply #7March 18, 2009, 07:25:35 pm

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« Reply #7 on: March 18, 2009, 07:25:35 pm »
Quote from: "cyrus #1"
Quote from: "Smokey Eddy"
perhaps the T-stat is junk?


It's possible.  I had one that was dead straight out of the box.  :evil:


What a load!
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #8March 18, 2009, 08:41:14 pm

8v-of-fury

  • Guest
Quick&Short T-Stat question!
« Reply #8 on: March 18, 2009, 08:41:14 pm »
rip it out and throw it in a pot ED.

:) a Good project. Lots of fun :P

Reply #9March 21, 2009, 05:53:58 am

theman53

  • Global Moderator
  • Veteran

  • Offline
  • ***

  • 7835
  • Personal Text
    Holmes County Ohio - North Central Ohio
Quick&Short T-Stat question!
« Reply #9 on: March 21, 2009, 05:53:58 am »
My friend who is a Mastercraft certified mechanic put a Tstat in upside down on one of his own :D   I let him hear it all the time, becuase a friend of ours caught it before he stuck the engine in.
Every one of my diesels and the GTI runs exactly where your gauge did though...I think it is the guage, and that is why I am going with something with #s on it for the TD. #s usually don't lie. Not saying that these do, but there is no way to tell what your coolant is at. The line you have could be 220 degrees or it could be 180 you just don't know.

Reply #10March 21, 2009, 06:00:11 pm

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« Reply #10 on: March 21, 2009, 06:00:11 pm »
Yes I agree. It is worrying though.

Will the coolant light start to blink above a certain temp?
I blew a HG before the needle hit the last line once and im very afraid of that happening again. The oil doesn't get too hot. And I can't hear boiling under the hood after shutting it off.
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #11March 21, 2009, 07:39:42 pm

jtanguay

  • Veteran

  • Offline
  • ***

  • 6879
Quick&Short T-Stat question!
« Reply #11 on: March 21, 2009, 07:39:42 pm »
Quote from: "Smokey Eddy"
Yes I agree. It is worrying though.

Will the coolant light start to blink above a certain temp?
I blew a HG before the needle hit the last line once and im very afraid of that happening again. The oil doesn't get too hot. And I can't hear boiling under the hood after shutting it off.


i doubt the coolant light will blink until the gauge is the whole way over.  when my engine overheated i don't recall seeing it blink... but it might have.


This is how we deal with porn spammers! You've been warned.

Reply #12March 23, 2009, 02:07:42 am

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« Reply #12 on: March 23, 2009, 02:07:42 am »
should i get a 70, 80, 87 or 92 T-stat? :P With summer coming up... im going to say definitely not the 92.
70 seems really really low.
debating between 87 and 80...

I may want to go on some road trips which would include going up the coke. (BC'ers know what im talking about ;) )
In THAT case I'd be more comfortable with an 80... but the different between 80 and 87 is so large... i'd really like an 84 or 85 :P   hahahah
87 it is i think but folks, please include your input. Would 80 be too cold for fuel economy sake?
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD

Reply #13March 23, 2009, 12:13:04 pm

jtanguay

  • Veteran

  • Offline
  • ***

  • 6879
Quick&Short T-Stat question!
« Reply #13 on: March 23, 2009, 12:13:04 pm »
80 wouldn't be too bad, but i'd say go with '87 + a coolant temp additive.  that will keep your temps very stable.


This is how we deal with porn spammers! You've been warned.

Reply #14March 23, 2009, 12:37:08 pm

Smokey Eddy

  • Veteran

  • Offline
  • ***

  • 3468
    • McScrubbins Body Wash
Quick&Short T-Stat question!
« Reply #14 on: March 23, 2009, 12:37:08 pm »
Cheers man, i'll do that :)
Mine was an 87, it must be faulty.
Ed
Blacked out mk2 AAZ Jetta RIP. You are missed.
White 1999.5 ALH Golf 2dr. Low & wide. Rammed off the road RIP.
Blue 2009 CR140 Jetta CBEA/CJAA. Malone stage 2. EGR/DPF/Exhaust-valve deletes. 2.5" open exhaust. ADP Turbo swap. 1-stage nitrous kit. THROWN ROD