Mounting Head Temp Sensor

The "Pimp my Ride" section for Soviet bloc bikes. Everybody seems to have their own custom add-ons, modifications & accessories. Share your tips and post pictures of them here.
Forum rules
This is the place for topics concerining modifying and accessorizing your Ural or Denpr.
User avatar
windmill
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 6557
Joined: Tue Feb 12, 2008 1:17 am
Location: Kent, Wa

Re: Mounting Head Temp Sensor

Post by windmill » Thu May 31, 2018 4:07 pm

I'm thinking of getting the gauge, and the only question I have is, are the spark plug washers still used, or do the sensors take their place?
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018 M70

User avatar
URAL CT
Order of Suvarov
Order of Suvarov
Posts: 3371
Joined: Tue Oct 02, 2007 4:20 pm
Location: Plano, Texas

Re: Mounting Head Temp Sensor

Post by URAL CT » Thu May 31, 2018 4:15 pm

I've had the CHT since 2008, I've never taken the spark plug washers out. Works for me. :mrgreen: YMMV
CT
2007 Patrol
Plano, TX

User avatar
Wanderrad
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 633
Joined: Wed Jan 28, 2015 2:54 pm
Location: NY North Country

Re: Mounting Head Temp Sensor

Post by Wanderrad » Thu May 31, 2018 4:44 pm

Spark plug washers still in place on mine.


Sent from my iPhone using Tapatalk Pro
-Scot

2018 Gear Up, Olive Drab Matte "Bad Penny"
2014 Gear Up, Sage Green (sold)

User avatar
Tomcatfixer
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 4944
Joined: Sat Oct 24, 2015 5:10 am
Location: Virginia Beach, VA

Re: Mounting Head Temp Sensor

Post by Tomcatfixer » Thu May 31, 2018 4:56 pm

are the spark plug washers still used, or do the sensors take their place?
Like the others, I still use my spark plug washers. I take them off, thread the thermocouple rings onto the spark plugs, then thread the washers back on.
I believe 1.03 was released this year.
I was curious about this, so I e-mailed Jason at IMWA. Here's his response:

"The OR mapping has not changed in years, the only variation you see 1.02 vs 1.03 is related to model year software requirements. Your dealer will simply need to load the bike with the correct year, there is only two options, 2014-2016 or 2017-current."

Interesting. So, my OR1.02 map IS the most current for a 2015 Ural.
- Chad

Virginia Beach, Virginia, USA

Current rides:
2015 Ural cT "Mobile Chernobyl", 1999 Ural Tourist "Desert DisGrace: the Iron (Oxide) Curtain", 1994 Honda VFR750F, 1986 Yamaha FZX700S Fazer

Previous rides:
2007 Honda VTR1000 FireStorm (Super Hawk in U.S.)
2001 Buell Blast! - - - - - - - 2005 Yamaha FJR1300
1993 Honda CBR600F2 - -1984 Yamaha FJ1100
1986 Yamaha FZX700S (a different one than above)

User avatar
Wildhorse Cafe
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 1520
Joined: Mon Sep 08, 2014 5:28 pm
Location: King City, California

Re: Mounting Head Temp Sensor

Post by Wildhorse Cafe » Thu May 31, 2018 5:32 pm

wooden nickel wrote:The only advice I can think of is: use neversieze on the plug threads when you re-install the plugs. I also run the thermocouple wires down in the cylinder head fins, then over the throttle bodies and up the throttle cables. It looks fairly neat and doesn't let the wires catch on anything. I store the excess thermocouple wire under the gas tank.
I have had less thermocouple failure with the wire run this way rather than going straight up from the plug. I think the wire flexes less snug down between the fins, but what do I know?
That is how I installed mine. Never trim the excess cable the meter is calibrated to the length. Ambient temp effects the readings slightly and if the cables get wet lets say after a w@$#ing or rain you will get some crazy readings. Just give the cables some time to dry out and you will be fine. Three years and never a failure. :foilhead:
2011 Patrol Higgs Bison Super Collider formally known as the Orange and Silver Pumpkin Coach
2006 Shinny Black, Tourist, Tatyanna

When you set out on your journey to Ithaca
pray the road is long , full of adventure, full of knowledge
not expecting that Ithaca will offer you riches
Ithaca has given you the beautiful voyage

C.P. Cavafy

User avatar
wooden nickel
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 2042
Joined: Thu Mar 20, 2008 6:55 pm
Location: Louisville, KY 40216

Re: Mounting Head Temp Sensor

Post by wooden nickel » Thu May 31, 2018 6:05 pm

For the first few years I lost one or two thermocouples a year but either it was a bad run or I finally cut down on the vibration on the leads. I haven't lost a thermocouple in at least 4 years.
Now that ought to bring out the gremlins. No sweat, I still have spares.
I may not be good, but I'm slow.
Nick
2014 M70 Retros, the sports car of Urals.

User avatar
wooden nickel
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 2042
Joined: Thu Mar 20, 2008 6:55 pm
Location: Louisville, KY 40216

Re: Mounting Head Temp Sensor

Post by wooden nickel » Thu May 31, 2018 6:08 pm

It seems the thermocouple to copper wire connection is the culprit on much of the water vulnerability. It isn't as bad if I put silicone grease on those connectors. I need to renew it now but I really don't care too much.
I may not be good, but I'm slow.
Nick
2014 M70 Retros, the sports car of Urals.

User avatar
Wildhorse Cafe
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 1520
Joined: Mon Sep 08, 2014 5:28 pm
Location: King City, California

Re: Mounting Head Temp Sensor

Post by Wildhorse Cafe » Thu May 31, 2018 7:09 pm

wooden nickel wrote:It seems the thermocouple to copper wire connection is the culprit on much of the water vulnerability. It isn't as bad if I put silicone grease on those connectors. I need to renew it now but I really don't care too much.
It won't help the wire are not insulated in the normal way they look to be bare and are in-bedded in a fibrous thermal insulating material and then surrounded by the metal braided outer heat shield. The wires may or may not be varnished for electrical insulation it's hard to tell but I think not.
2011 Patrol Higgs Bison Super Collider formally known as the Orange and Silver Pumpkin Coach
2006 Shinny Black, Tourist, Tatyanna

When you set out on your journey to Ithaca
pray the road is long , full of adventure, full of knowledge
not expecting that Ithaca will offer you riches
Ithaca has given you the beautiful voyage

C.P. Cavafy

User avatar
wooden nickel
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 2042
Joined: Thu Mar 20, 2008 6:55 pm
Location: Louisville, KY 40216

Re: Mounting Head Temp Sensor

Post by wooden nickel » Thu May 31, 2018 7:59 pm

I wasn't trying to insulate the wires, I was trying to keep moisture off the secondary thermocouple connections. Each connection is it's own thermocouple and the moisture seems to change that junction.
Whatever the reason, I had less variation when I coated the metal connectors with dielectric grease.
I may not be good, but I'm slow.
Nick
2014 M70 Retros, the sports car of Urals.

RockyH
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 58
Joined: Wed Feb 28, 2018 6:54 pm

Re: Mounting Head Temp Sensor

Post by RockyH » Wed Jun 13, 2018 9:12 am

I got the CHT sensor installed and working great. So far she runs at 200 degrees C when hill climbing to my house, so it is nice to know she is not running too hot.
Thanks All for the information!
Ruedi Colorado
1985 GPz 750 Turbo
2010 Honda NT 700
2015 Kawasaki KLR650
2018 Ural Gear Up.
I still ride them all!

hotflash44
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 3777
Joined: Mon Mar 13, 2017 7:03 pm

Re: Mounting Head Temp Sensor

Post by hotflash44 » Wed Jun 13, 2018 9:44 am

windmill wrote:I'm thinking of getting the gauge, and the only question I have is, are the spark plug washers still used, or do the sensors take their place?
Mr.Wind, i have removed the copper washer and only used the copper CHT washer ,no leaks all is good. reason is i didn't want to much copper being crushed and maybe changing the depth of the electrode/heat range. what ever all is good either way IMHO. :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

User avatar
Albuquralque
Order of Victory
Order of Victory
Posts: 19214
Joined: Thu Jul 19, 2007 2:46 pm
Location: Albuquerque, NM

Re: Mounting Head Temp Sensor

Post by Albuquralque » Wed Jun 13, 2018 5:59 pm

windmill wrote:I'm thinking of getting the gauge, and the only question I have is, are the spark plug washers still used, or do the sensors take their place?

Washer on a plug is a crush washer and performs a specific purpose. The washer on the CHT lead is a flat washer used to conduct and measure heat.

Each of them have a specific purpose and each of them should be used.
"Put a little gravel in your travel"

Darrell - Albuquralque
2014 Patrol - Babe the Blue Ox
EFI Map OR 1.02
Throttle Body Vacuum Ports
K&N Air Filter
Raceway 2-into-1 Header (Right Side)
Previous Urals Owned: 2004 Wolf, 2006 Tourist, 2006 Patrol (TOW), 2006 Patrol (TOM)

User avatar
windmill
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 6557
Joined: Tue Feb 12, 2008 1:17 am
Location: Kent, Wa

Re: Mounting Head Temp Sensor

Post by windmill » Wed Jun 13, 2018 6:44 pm

I went with both, and I'm satisfied with the result.
Barry

"Take care, sir," cried Sancho. "Those over there are not giants but windmills".

2007 Patrol 100k km and counting,
2018 M70

hotflash44
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 3777
Joined: Mon Mar 13, 2017 7:03 pm

Re: Mounting Head Temp Sensor

Post by hotflash44 » Sat Jun 16, 2018 12:12 pm

windmill wrote:I'm thinking of getting the gauge, and the only question I have is, are the spark plug washers still used, or do the sensors take their place?
on the TTO brand CHT they say to remove the crush washer and use the copper washer on the wire end i did and all is good here is the PDF from TTO www.trailtech.net/media/wysiwyg/pdf/010-ELV-189.pdf :cheers:
2016 gear up asphalt grey, name Seryy Medved ,Air America CIA circa 1967/8 Vung Tau Viet Nam USS Tutuila ARG-4 (AND JUST A TOUCH OF AGENT ORANGE!)

RockyH
Hero of the Soviet Union - 2018
Hero of the Soviet Union - 2018
Posts: 58
Joined: Wed Feb 28, 2018 6:54 pm

Re: Mounting Head Temp Sensor

Post by RockyH » Sun Jun 17, 2018 10:11 am

I used both and everything seems just fine.
Ruedi Colorado
1985 GPz 750 Turbo
2010 Honda NT 700
2015 Kawasaki KLR650
2018 Ural Gear Up.
I still ride them all!

Post Reply