Pyrometer question

LCkoolJ · 06-17-08, 12:42 PM

Wondering if anyone has seen this before - I have a Autometer pyrometer in my 40 that for seemingly no reason suddenly jumped to around 1400 degrees and just stays there. When I turn the key on, it resets to zero and then jumps back to the same position, and doesn't seem to move from there at all, even when driving. Would that be a probe problem? I thought maybe the wire to the probe might have shorted on something, but its a steel braided covering, and I doubt it would wear through. I haven't gone through it carefully yet, just kinda looked at it and saw that it wasn't touching anything and thought I would check here first before I started ripping out wires. Any clues? Thanks!

Gold Boy · 06-17-08, 01:08 PM

maybe...

bad ground
24v is crossing over to the 12v, bad converter/connection

i have an autometer pyro never had a problem, but some here h8 them...

prado t · 06-17-08, 01:12 PM

I am guessing that it is a 12v guage right ? So I am agreeing with Gold Boy . I only run 24v guages ( much harder to find) so I dont rely on my 24v-12v converter. Make sure you are grounding.

LCkoolJ · 06-17-08, 01:16 PM

Yeah, I guess I'll have to go through it carefully. The thing is the boost guage is connected to the exact same circuit, and its working fine. It was all working good and then one day it freaked out on me, so it sounds like a short. I'll pull out the wiring tonight and see what gives. Thanks for the thoughts, guys.

crushers · 06-17-08, 02:10 PM

autometer gauges suck.

Gold Boy · 06-17-08, 02:15 PM

Quote:

Originally Posted by crushers

autometer gauges suck.

don't be shy Wayne , tell us how you feel...

crushers · 06-17-08, 02:21 PM

okay, suck badly...

Towpack · 06-17-08, 02:44 PM

Try disconnecting the probe from the gauge and see if you get the same symptom.

Tapage · 06-17-08, 04:25 PM

Quote:

Originally Posted by crushers

okay, suck badly...

X2 ..

ISSSPRO or VDO .. I've seen in a buddy pyro how the Autometer never read well, at the end they send another probe and he need to pay for the gauge ..

LCkoolJ · 06-17-08, 04:37 PM

Quote:

Originally Posted by Towpack

Try disconnecting the probe from the gauge and see if you get the same symptom.

Good call - I'll start with that.

eleblanc · 06-17-08, 10:54 PM

OMG, again, i've had some issue installing my pyro meter, but it is NOT because autometer sucks. But because Toyota bolts comes loose.........

Check your Ground. leave the pyro installation like it should be. Take a wire and touch one end anywhere on the motor close to your pyro, the other end to your frame. And let me know if that works!

And see this thread..

http://forum.ih8mud.com/diesel-tech-...ter-issue.html

Good luck!

LCkoolJ · 06-25-08, 12:04 PM

Quote:

Originally Posted by eleblanc

Check your Ground. leave the pyro installation like it should be. Take a wire and touch one end anywhere on the motor close to your pyro, the other end to your frame. And let me know if that works!

Ok, so I tried that (finally) and it didn't make a difference, so I proceeded to remove the probe from the exhaust mainifold. I pulled the probe up and checked the wire, and noticed in one section the yellow insulation oozing through the steel braiding! Yeah, stupid me.

Routed it too close to hot stuff. I nipped off about six inches of the steel braiding, and separated the two wires inside and taped everything back up. As soon as I did that the pyrometer jumped down to zero, so I put everything back together, rotated the probe so that the wire coming out was pointing towards my fender and re-routed the wire far away from any heat source. So its all good. Thanks for your suggestions guys.

06-17-08, 12:42 PM	#1
LCkoolJ IH8MUD Rookie Join Date: Apr 2007 Location: Abbotsford, BC Posts: 38	Pyrometer question Wondering if anyone has seen this before - I have a Autometer pyrometer in my 40 that for seemingly no reason suddenly jumped to around 1400 degrees and just stays there. When I turn the key on, it resets to zero and then jumps back to the same position, and doesn't seem to move from there at all, even when driving. Would that be a probe problem? I thought maybe the wire to the probe might have shorted on something, but its a steel braided covering, and I doubt it would wear through. I haven't gone through it carefully yet, just kinda looked at it and saw that it wasn't touching anything and thought I would check here first before I started ripping out wires. Any clues? Thanks! __________________ 1980 BJ40 Turbo, ARB/Detroit, 4.88's, Smurf's, 24v 8274

06-17-08, 01:08 PM	#2
Gold Boy it's a wooly worm Join Date: Aug 2005 Location: Southern Interior, BC, Canada. Posts: 1,608 Blog Entries: 1	maybe... bad ground 24v is crossing over to the 12v, bad converter/connection i have an autometer pyro never had a problem, but some here h8 them... __________________ BJ74 & TUFT & U-AFPT

06-17-08, 01:12 PM	#3
prado t IH8MUD Addict Join Date: Mar 2007 Location: vancouver B.C. Canada TLCA# 17424 Posts: 877	I am guessing that it is a 12v guage right ? So I am agreeing with Gold Boy . I only run 24v guages ( much harder to find) so I dont rely on my 24v-12v converter. Make sure you are grounding. __________________ 2.5 OME Heavy coils, ARB rear locker PRADO STOLEN 89 BJ74 ARB lockers front and rear 4" ZEAL lift, 24v M8000 winch ARB bull bar, Marks 108 to 1 HI 305 to 1 low

06-17-08, 01:16 PM	#4
LCkoolJ IH8MUD Rookie Join Date: Apr 2007 Location: Abbotsford, BC Posts: 38	Yeah, I guess I'll have to go through it carefully. The thing is the boost guage is connected to the exact same circuit, and its working fine. It was all working good and then one day it freaked out on me, so it sounds like a short. I'll pull out the wiring tonight and see what gives. Thanks for the thoughts, guys. __________________ 1980 BJ40 Turbo, ARB/Detroit, 4.88's, Smurf's, 24v 8274

06-17-08, 02:10 PM	#5
crushers IH8MUD Lifer Join Date: Feb 2004 Posts: 9,793	autometer gauges suck. __________________ pulling this info out of my ass so take it with a pound of salt "People are poor because they don't spend money wisely, tough sh!t !!! " John Galt 09/22/08 "educate yourself. Sorry if that seems too blunt." John Galt 11-01-08 Wayne in Ontario http://www.ivoac.ca join today

06-17-08, 02:21 PM	#7
crushers IH8MUD Lifer Join Date: Feb 2004 Posts: 9,793	okay, suck badly... __________________ pulling this info out of my ass so take it with a pound of salt "People are poor because they don't spend money wisely, tough sh!t !!! " John Galt 09/22/08 "educate yourself. Sorry if that seems too blunt." John Galt 11-01-08 Wayne in Ontario http://www.ivoac.ca join today

06-17-08, 02:44 PM	#8
Towpack IH8MUD Junior Join Date: Jun 2005 Location: Yorkshire,England Posts: 133	Try disconnecting the probe from the gauge and see if you get the same symptom. __________________ Phil '98 Amazon 4.2TD '04 Yamaha R1 '03 GT XCR3000 '95 Border Collie

06-17-08, 10:54 PM	#11
eleblanc BJ addict Join Date: Jul 2006 Location: Montreal TLCA# 16338 Posts: 1,398	OMG, again, i've had some issue installing my pyro meter, but it is NOT because autometer sucks. But because Toyota bolts comes loose......... Check your Ground. leave the pyro installation like it should be. Take a wire and touch one end anywhere on the motor close to your pyro, the other end to your frame. And let me know if that works! And see this thread.. http://forum.ih8mud.com/diesel-tech-...ter-issue.html Good luck! __________________ 1983 BJ42LV 3B turbo diesel, 5 speed, power steering 24V Viair 450C, ARB locker front/rear, OME Heavy 4.56 R&P, BF Mud 255/85 (34") Warn M12000 24Volt http://www.ericleblanc.com/gallery/m...p?g2_itemId=20

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