Author Topic: Oil temp sensor  (Read 5494 times)

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Offline Johnny340

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Oil temp sensor
« on: February 27, 2018, 04:17:47 PM »
I'm wondering where to mount this oil temp sensor for the Chronoclassic gauge.  I was thinking of the oil gallery plug where most people mount their mechanical oil pressure gauge.  Is there a better suggestion?  Also what type of connector is used on this?
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Paintedseat

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Re: Oil temp sensor
« Reply #1 on: February 27, 2018, 04:23:06 PM »
Get one of these.

Offline Paintedseat

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Re: Oil temp sensor
« Reply #2 on: February 27, 2018, 04:24:34 PM »
I currently have it plugged but am going to install a pressure gauge and dash mount it buy running a SS line

Offline Johnny340

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Re: Oil temp sensor
« Reply #3 on: February 27, 2018, 07:41:54 PM »
I currently have it plugged but am going to install a pressure gauge and dash mount it buy running a SS line
That looks like a good idea!

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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline scottly

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Re: Oil temp sensor
« Reply #4 on: February 27, 2018, 08:26:31 PM »
Does the sensor match the threads on the sump oil drain plug? That's where the VDO temp sensor was mounted on my bike when I first got it. The connector required is probably a 1/4" female spade?   
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Offline strynboen

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Re: Oil temp sensor
« Reply #5 on: February 28, 2018, 03:04:27 AM »
Get one of these.
yes that is the korreekt hack..i just hate to see drilled cases hack week make a lot peapel ruin ther cases drilling them..renembet that oil temp need some flow..so dont put the sensor in a bline  dead end..
i kan not speak english/but trying!!
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Offline lash

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Re: Oil temp sensor
« Reply #6 on: February 28, 2018, 03:22:10 AM »
Analog mind in a digital world..

Offline rotortiller

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Re: Oil temp sensor
« Reply #7 on: February 28, 2018, 04:16:39 AM »
The oil tank would be my choice. It has a nice stable consistent mass of hot oil and easy access. A pressure indicator in the oil gallery is more important since motoring is your gig, It's a reference point so you know the oil supply temperature heading for the engine is reasonable or has not changed dramatically, granted there are hotter measuring points. You can buy glue on sensors for the oil tank. Where a problem lay is if there is no oil flow to the tank then the oil would be cool. Maybe glue a temp sensor to the oil filter housing?

Offline Paintedseat

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Re: Oil temp sensor
« Reply #8 on: February 28, 2018, 04:26:28 AM »
You don't have to drill. All the threads are correct.

Offline PeWe

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Re: Oil temp sensor
« Reply #9 on: February 28, 2018, 05:24:00 AM »
I got an oil tank (CB750 K1-K5) where an additional nut was attached. Made for VDO sensor that I ordered and now sit there. Tank on bike, VDO 2” temp gauge ordered too.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline strynboen

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Re: Oil temp sensor
« Reply #10 on: February 28, 2018, 05:58:21 AM »
you can machine a brszz nut/insert..threddet for the instrument feeler..and solder it in the oil tank..then its easy to block the hole  vhen not  in use ..
i kan not speak english/but trying!!
http://forums.sohc4.net/index.php?topic=60973.0
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Offline Paintedseat

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Re: Oil temp sensor
« Reply #11 on: February 28, 2018, 07:10:34 AM »
Bought mine here

Offline PeWe

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Re: Oil temp sensor
« Reply #12 on: February 28, 2018, 10:40:55 AM »
My oil tank I got with other parts prepared for Oil temp sensor. After some search I found which thread the nut has. VDO sensor 300 (150C)/ 1/4-18NPT (conical thread)

Oil temp gauge arrived today. VDO for marine, IP67
http://www.ebay.co.uk/itm/VDO-TEMPERATUR-ANZEIGER-OEL-150-INSTRUMENT-OIL-GAUGE-12V-Classic-chromring/112678215842?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
Illumination in redish tone only.

It would be fine if a sensor could be used on the oil pan instead of oil bolt.  The sensor must not be long then. Drill a hole thru the middle of the bolt, thread it for a thin sensor?

Do the oil tank as mine is trickier. I hope it is well done without any bad surprises on the road in high speed.  ???
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Paintedseat

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Re: Oil temp sensor
« Reply #13 on: February 28, 2018, 11:01:49 AM »
I want pressure not temp

Offline rotortiller

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Re: Oil temp sensor
« Reply #14 on: February 28, 2018, 11:23:35 AM »

Offline strynboen

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Re: Oil temp sensor
« Reply #15 on: February 28, 2018, 12:00:57 PM »
that is not good.

.he is messuring the oilcooler line..it gives a total different resultat as the inside sump temperature..you vant the fluid temp..not the autside of the engine block...
i kan not speak english/but trying!!
http://forums.sohc4.net/index.php?topic=60973.0
http://forums.sohc4.net/index.php?topic=144758.0
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Offline Johnny340

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Re: Oil temp sensor
« Reply #16 on: February 28, 2018, 12:16:56 PM »
Bought mine here
I want temperature and this fitting looks nice. Would this area be good for oil temp pickup even with its minimal flow?
The oil pan drain plug is too small and I don't want to check the temp of the oil tank since it will have cooled a bit by that point.

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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline rotortiller

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Re: Oil temp sensor
« Reply #17 on: February 28, 2018, 01:02:54 PM »
Quote
he is messuring the oilcooler line..it gives a total different resultat as the inside sump temperature

I wonder what the difference would be with the thin oil tank surface and the oil inside it?

Offline PeWe

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Re: Oil temp sensor
« Reply #18 on: February 28, 2018, 02:00:17 PM »
I want pressure not temp
My posts for the thread starter Johnny340, "Oil temp sensor"
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Johnny340

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Re: Oil temp sensor
« Reply #19 on: February 28, 2018, 02:12:50 PM »
I want pressure not temp
My posts for the thread starter Johnny340, "Oil temp sensor"

Thank you.  What are your thoughts on using something like that eBay block to share the same location as the pressure sender?  Enough flow to indicate temperature change?
1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline PeWe

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Re: Oil temp sensor
« Reply #20 on: February 28, 2018, 02:28:17 PM »
I have no experience of that. Maybe forum members MessnerMoto or Ilja has tried that?
They are very technical finding their own ways how to modify a CB750.
Ilja has a Turbo thread in the High performance forum. MessnerMoto primary chains and tensioners and more.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Paintedseat

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Re: Oil temp sensor
« Reply #21 on: February 28, 2018, 05:14:30 PM »
I want pressure not temp
My posts for the thread starter Johnny340, "Oil temp sensor"

Thank you.  What are your thoughts on using something like that eBay block to share the same location as the pressure sender?  Enough flow to indicate temperature change?

Yeah I got cha. I was just saying I am going to use mine for pressure.

Offline Johnny340

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Re: Oil temp sensor
« Reply #22 on: February 28, 2018, 08:01:11 PM »
I want pressure not temp
My posts for the thread starter Johnny340, "Oil temp sensor"

Thank you.  What are your thoughts on using something like that eBay block to share the same location as the pressure sender?  Enough flow to indicate temperature change?

Yeah I got cha. I was just saying I am going to use mine for pressure.
No prob at all. I appreciate your comments! I'm going to use your idea for my temp sensor and hope it works.

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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Paintedseat

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Re: Oil temp sensor
« Reply #23 on: March 01, 2018, 01:15:04 AM »
It's going to be close to hitting the bottom of the carbs

Offline Johnny340

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Re: Oil temp sensor
« Reply #24 on: March 01, 2018, 10:58:47 PM »
It's going to be close to hitting the bottom of the carbs
It think it will work out... As long as there is enough oil flow in that area.
Thanks again!

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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250