XR4Ti Temperature Gauge - The Cause of Low Temperature

Merkur Scorpio / XR4Ti Technical Library - Check here for answers to common questions, problems and modifications.

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Re: Temperature sensor

Post by DPDISXR4Ti » Wed Feb 14, 2007 12:53 pm

John R. Rowlands wrote:Did you clean the ring between what I'm calling the insulator and the brass case?
Somewhat, yes. I think what you're seeing is the tarnished brass color come through. That "ring" is part of the brass case and not colored other than it's native metal color. The insulator is where the color is - white on mine; purple(ish) on Anglin's.
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Post by Rooster » Wed Feb 14, 2007 1:05 pm

do you have the ford part # for this purple ring sender?? :?:
-Rooster..
1985 Merkur XR4Ti "New plan"
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Post by anglin » Sat Sep 08, 2007 1:45 pm

Rooster wrote:do you have the ford part # for this purple ring sender?? :?:
From my personal archives: E6RY-10884-B

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by eeegolf » Wed Apr 02, 2014 1:46 am

Hey, guys....since the last post in this thread was from 2007, is there a temperature sender anyone would recommend? Did a google search in the last part but can't find any for sale.

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by MarkM » Wed Apr 02, 2014 11:05 pm

Check with Merkur Depot and Merkur Midwest.

http://www.merkur.50megs.com/

http://www.merkurmidwest.com/
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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by merkurdriver » Mon Apr 07, 2014 8:33 pm

Had some, none right now unfortunately...

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by jkxr4ti » Tue Apr 08, 2014 3:29 pm

Ian found out a while back that the Cosworth tem sensor was a good match. PN yb0201. I never did order one but he said he was able to get them from cosworth USA.

Well the sensor electrically was the same but it did need a thread adapter in otder to fit the lower manifold.

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by itking » Tue Apr 08, 2014 4:01 pm

Hey jkxr4ti. What's it look like?

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by timxr8 » Tue Apr 08, 2014 11:35 pm

It looks to be the same for all the Sierras. They call it a "violet ring". I did a look on RockAuto and they look like straight thread in the 16-18mmx2.0 range. Cost about $6, but shipping will be about $25. Might be worth it to purchase a bunch and sell.

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by itking » Wed Apr 09, 2014 9:39 am

timxr8, You have a link for that part at rock auto? Cause this is what I found on ebay.

http://www.ebay.com/itm/Ford-Cosworth-W ... 19e48e46fb

http://www.ebay.com/itm/Cosworth-Temper ... 3f300410c9

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by merkurdriver » Wed Apr 09, 2014 7:25 pm

Its like the one in the second link you posted:
http://www.ebay.com/itm/Cosworth-Temper ... 3f300410c9

You'll need a pipe bushing adapter to fit it to the XR lower intake. Hardware store brass 3/8" male x 1/8" female pipe bushing only about $3.

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by itking » Wed Apr 09, 2014 8:14 pm

Thanks merkurdriver.

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by jkxr4ti » Fri Apr 11, 2014 11:56 am

So I was looking around the other night and found a echlin sensor cross reference guide with some Ohm values in it.

3 domestically available posibilities are:

Napa TS6046
Mazda Miata early years plus some hyundai cars.
100°F=240Ω
250°F= 20Ω
33-41Ω
@200°F
1/8x27NPTF
------------------------
Nissan 84-96 300ZX, 200SX
TS6070
100°F=217Ω
250°F=15.5Ω
M12x1.25
-------------------
90-92 ford probe 3.0
TS6672
C@100°F=239Ω
@220°F=28Ω
3/8NPT


If someone wants to try one of these give it a shot.

Also here is what rock auto and others list for the sierras for those years

Black ring- YB Cos, Taunus (sierra/granada 10/85 - 12/88)
{
Standard Motor Products 53170
Febi 01805
Ford 6145143
Ford 86VB-10884-BA
Lucas SNB174
Valeo 700034
Vemo V25-72-0042
}



For reference here is whats listed for the mustang sensor that doesnt work correctly:
100°F=176Ω
220°F=24.1Ω
3⁄8x 18 NPTF

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by merkurdriver » Mon May 12, 2014 12:31 am

jkxr4ti - great info with the Ohm values - do you have the values for the purple ring sender?

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Re: XR4Ti Temperature Gauge - The Cause of Low Temperature

Post by Skibob6 » Tue Jun 03, 2014 3:59 pm

RESURRECTION!!!

So i had a temp gauge reading really low, Like in between the two bottom lines on the gauge. So i pulled the ECT guess what? f***** clogged! So i shoved an Allen wrench in there and broke all the crap loose, but i still didn't have satisfactory flow so i took the t fitting off. It was totally blocked on both sides of the sensor. So i cleaned all of that crap out. Then i moved to the intake, i took a standard #2 Phillips and stuck it in until the handle hit the manifold, when i started moving it around a chunk about the size of a quarter falls out. "HOLY CRAP THE INTERWEBS WAS ACTUALLY RIGHT!"

I haven't reassembled it yet but I'll update on my gauge operation after i put it back together and replace that hose.

UPDATE: cleaned everything some more and reassembled. I wouldn't say the gauge works correctly, but it now reads at or just above the two lines on the bottom of the range. It previously ran in between them, so only a slight improvement. I talked to my parts guy and the only Fmc purple ring sensor i could find was in az or co. Should i order the Ford part or an aftermarket replacement?

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