coolant temp sensor adapter fitting for passenger side head - LS1TECH

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coolant temp sensor adapter fitting for passenger side head

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Old 04-05-2012, 03:25 PM   #1
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Default coolant temp sensor adapter fitting for passenger side head

rich l has showed me a diff fitting might go with that one

Last edited by all juiced up; 04-05-2012 at 06:14 PM.
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Old 04-05-2012, 03:56 PM   #2
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What size to what size ??
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Old 04-05-2012, 04:27 PM   #3
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Im in as long as they are what u say they are.
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Old 04-05-2012, 04:47 PM   #4
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Can you assure us they're better than the ones that twist and break before they're adequately tight? I went through two such fittings even knowing of their tendancy to break.

Andy1
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Old 04-05-2012, 05:01 PM   #5
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andy1 i will look in to that issue
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Old 04-05-2012, 05:04 PM   #6
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zq8ls1- i will double check but i think its 12mm to whatever an aftermarket auto meter sender is
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Old 04-05-2012, 05:11 PM   #7
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Threads are 12mm-1.5. This is the adaptert I used for my 1/8" NPT SPA temperature sending unit.

http://www.speedwaymotors.com/LS1-Wa...pter,8195.html

The note there to "drill out the I.D. of the adapter to accept your sender" was necessary and worked well.

Rich

Last edited by Rich L.; 04-09-2012 at 03:56 PM. Reason: fixed from 16mm to 12mm.
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Old 04-05-2012, 05:16 PM   #8
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nice rich had a hard time locating these but you still have to drill and tap the inside
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Old 04-05-2012, 05:53 PM   #9
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You don't tap the inside do you? Don't you just open the lumen enough for the sender tip to stick through?
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Old 04-05-2012, 07:44 PM   #10
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Quote:
Originally Posted by Rich L. View Post
Threads are 16mm-1.5. This is the adaptert I used for my 1/8" NPT SPA temperature sending unit.

http://www.speedwaymotors.com/LS1-Wa...pter,8195.html

The note there to "drill out the I.D. of the adapter to accept your sender" was necessary and worked well.

Rich
I think the threads are 12mmx1.5 but I could be mistaken. Here is the adapter that I used.
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Old 04-05-2012, 08:22 PM   #11
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Quote:
Originally Posted by rickyzZ28 View Post
I think the threads are 12mmx1.5 but I could be mistaken. Here is the adapter that I used.
They are 12MM. I have cut a lot of senders down on my lathe and re-threaded for people.
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Old 04-05-2012, 09:24 PM   #12
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I have a switch with 3/8 NPT...does anybody make a adapter for that ??

While we are on the subject...I know the coolant sensor goes in the drivers side front head,what goes in the passenger side rear head ?? A plug ??

I got my heads used & building a motor from scratch & what is the hole next to the cooling hole for ??
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Old 04-05-2012, 09:42 PM   #13
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Drilled and tapped mine for old school mechanical guage.
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coolant temp sensor adapter fitting for passenger side head-temp-sensor.jpg   coolant temp sensor adapter fitting for passenger side head-dscn1095.jpg  
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Old 04-05-2012, 10:05 PM   #14
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Thank you for the pics.

My engine is out, so now is the time to deal with this.

Last edited by ZQ8LS1; 04-06-2012 at 12:57 PM.
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Old 04-06-2012, 12:30 AM   #15
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Not sure if I'm exactly on topic here, but if you are using an Autometer sender that comes with some of their gauge kits (which are too big to fit into their adapter......I'm assuming that is what you are referring to by saying you have to drill the 2277 adapter out) they make another sender that you can use with those gauges that fits directly into the adapter.

Autometer 2277 - 12x1.5 male x 1/8NPT -Adapter for LS -
Autometer 2259 - temp sender - short snout - fits the 2277 adapter
Autometer 2258 - temp sender - long snout - DOES NOT fit the 2277 adapter - (this one came with my gauges. I had to scrap it and buy the 2259 to make things fit).

Not sure if that helps.

Last edited by 66 BADBOY; 04-06-2012 at 12:53 PM.
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Old 04-06-2012, 11:46 AM   #16
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i just did the 2277 and 2259. that's for the short sweep autometer temp guage.
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Old 04-06-2012, 01:04 PM   #17
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Quote:
Originally Posted by 99VetteFRC View Post
Drilled and tapped mine for old school mechanical guage.
Same here,drilled and tapped head for 3/8" NPT OBS truck sender,nothing to it as long as the engine is still out of the vehicle.I used the Equus adapter and a 1/8" NPT to 1/4 NPT fitting for the oil pressure.Even with buying the tap at the local tool store,I'm into it for about $25.
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Old 04-06-2012, 01:43 PM   #18
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Quote:
Originally Posted by Andy1 View Post
Can you assure us they're better than the ones that twist and break before they're adequately tight? I went through two such fittings even knowing of their tendancy to break.

Andy1
Next time, screw the sender into the adapter first, then into the head....don't ask how I figured this out.....

Quote:
Originally Posted by chuckd71 View Post
You don't tap the inside do you? Don't you just open the lumen enough for the sender tip to stick through?
That is correct, no tapping required.

T,
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Old 05-14-2012, 04:47 PM   #19
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anyone else experiencing this with these adapaters used in the rear passenger head?

When first starting my car from dead cold, my temps will go up to 210 and then drop. I assume that is when the t-stat is fully opened. But, it only drops to 195-200. If I now shut it down, when starting back up, it will only be at 190-195. Not a big difference but seems odd to me.
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2002, 53, adapter, adaptor, coolant, firebird, fittings, jeep, location, ls, ls1, mechanical, sender, sensor, swap, temp, temperature

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