Temp Sending Unit Location Ideas
Thread Starter
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Temp Sending Unit Location Ideas
Thought I'd ask for ideas on this before I do something that might have a better solution.
I picked up a used BG Six Shooter and it does not have provisions for a temp sending unit
. Unfortunately my Brodix heads don't either so I have to figure something out. There is no boss in the manifold either and the area is slightly tapered which makes it even more of a problem.
Maybe weld in a nut to provide more meat for the sending unit?? I'll have to take it somewhere for that, I can't weld aluminium.
Any other way to solve this?
And if I end up using this thing, those plastic fuel lines will be history.
I picked up a used BG Six Shooter and it does not have provisions for a temp sending unit
. Unfortunately my Brodix heads don't either so I have to figure something out. There is no boss in the manifold either and the area is slightly tapered which makes it even more of a problem.Maybe weld in a nut to provide more meat for the sending unit?? I'll have to take it somewhere for that, I can't weld aluminium.
Any other way to solve this?
And if I end up using this thing, those plastic fuel lines will be history.
Heel & Toe
Joined: Oct 2006
Posts: 16
Likes: 0
I had a similar problem. Initially, I just used some threaded gas pipe and put a T where you have your heater hose. I screwed the temp sending unit in one side and the male heater fitting in the other. Of course, the key to the sending unit is that is should be submersed in the fluid to read accurately. After running that for a while, my heater core started leaking, so I just opted to do what Ganey did and skip running the lines to the heater core and put the temperature sending unit where I had the T.
Thread Starter
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
I had a similar problem. Initially, I just used some threaded gas pipe and put a T where you have your heater hose. I screwed the temp sending unit in one side and the male heater fitting in the other. Of course, the key to the sending unit is that is should be submersed in the fluid to read accurately. After running that for a while, my heater core started leaking, so I just opted to do what Ganey did and skip running the lines to the heater core and put the temperature sending unit where I had the T.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
Why not stub it into the manifold inlet housing. It should be easy enough for someone to weld a 'bung' into the side of the body. Better there than in a heater line; that line won't have flow unless the heater is ON. (It would warm up eventually...but that is not what you need.)
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
Assuming you will not move to a warmer climate 
(J/K), drilling & tapping should work fine or while not ideal some stock thermostat housings have a place for an emissions temp. control valve that could be utilized.
(J/K), drilling & tapping should work fine or while not ideal some stock thermostat housings have a place for an emissions temp. control valve that could be utilized.
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Thread Starter
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Why not stub it into the manifold inlet housing. It should be easy enough for someone to weld a 'bung' into the side of the body. Better there than in a heater line; that line won't have flow unless the heater is ON. (It would warm up eventually...but that is not what you need.)
Thanks for all the good suggestions, I'm glad I asked. If the T'stat housing I have doesn't work I'll just screw it into the heater connection for the summer and see how this intake works before I resort to the welding stuff.
Bill
Thread Starter
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Very cool......look at that, I think that's what Ganey was talking about. Even angled correctly, thanks for the tip!
Last edited by TopGunn; Jul 31, 2009 at 03:40 PM. Reason: added pic
Race Director
Joined: Dec 2007
Posts: 14,345
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From: Hartselle AL
St. Jude Donor '09
Racer
Joined: Apr 2007
Posts: 364
Likes: 1
From: Dane Wisconsin
sorry im coming in late here i was searching for a location to install mine since the heads that i have done have a bung (dart pro-1 310 runner big block) and thought about installing it in the t- stat but that will only read a somewhat accurate temp once the t-stat has opened.
Instructor
Joined: Apr 2010
Posts: 215
Likes: 0
From: Lakeland FL
I realize I'm coming late to this party but I have a newbie question, because I am one. It appears on my '75 Coupe's 350SBC engine that my temperature sending unit is under the exhaust manifold on the driver's side. There is a female slide on electrical connection. Is that possible? Please bear in mind that this isn't the original engine and my purchase of this vehicle in April has left me investigating all kinds of idiosyncrasies that are sometime maddening.
My problem is that when I put an IR temperature gauge on the area it appears to be hotter than any other place I put the IR. The water neck on the intake manifold shows 185 but my gauge on the dash shows 200 degrees and sometimes more.
By the way, when I shoot the exhaust manifold it shows somewhere in the neighborhood of 300 degrees. Is that normal?
My intake manifold (Edelbrock) has a fitting in what looks like a place that this could be relocated. Is that a good idea or will I get a different/lower and therefore also inaccurate?
I would like to know where the best place I can put the sending unit/sensor that will give me the most accurate reading without compromising the long term life of this engine.
Thanks.....
Kirk
My problem is that when I put an IR temperature gauge on the area it appears to be hotter than any other place I put the IR. The water neck on the intake manifold shows 185 but my gauge on the dash shows 200 degrees and sometimes more.
By the way, when I shoot the exhaust manifold it shows somewhere in the neighborhood of 300 degrees. Is that normal?
My intake manifold (Edelbrock) has a fitting in what looks like a place that this could be relocated. Is that a good idea or will I get a different/lower and therefore also inaccurate?
I would like to know where the best place I can put the sending unit/sensor that will give me the most accurate reading without compromising the long term life of this engine.
Thanks.....
Kirk
Thread Starter
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
I realize I'm coming late to this party but I have a newbie question, because I am one. It appears on my '75 Coupe's 350SBC engine that my temperature sending unit is under the exhaust manifold on the driver's side. There is a female slide on electrical connection. Is that possible? Please bear in mind that this isn't the original engine and my purchase of this vehicle in April has left me investigating all kinds of idiosyncrasies that are sometime maddening.
My problem is that when I put an IR temperature gauge on the area it appears to be hotter than any other place I put the IR. The water neck on the intake manifold shows 185 but my gauge on the dash shows 200 degrees and sometimes more.
By the way, when I shoot the exhaust manifold it shows somewhere in the neighborhood of 300 degrees. Is that normal?
My intake manifold (Edelbrock) has a fitting in what looks like a place that this could be relocated. Is that a good idea or will I get a different/lower and therefore also inaccurate?
I would like to know where the best place I can put the sending unit/sensor that will give me the most accurate reading without compromising the long term life of this engine.
Thanks.....
Kirk
My problem is that when I put an IR temperature gauge on the area it appears to be hotter than any other place I put the IR. The water neck on the intake manifold shows 185 but my gauge on the dash shows 200 degrees and sometimes more.
By the way, when I shoot the exhaust manifold it shows somewhere in the neighborhood of 300 degrees. Is that normal?
My intake manifold (Edelbrock) has a fitting in what looks like a place that this could be relocated. Is that a good idea or will I get a different/lower and therefore also inaccurate?
I would like to know where the best place I can put the sending unit/sensor that will give me the most accurate reading without compromising the long term life of this engine.
Thanks.....
Kirk
Yes that's the correct location for the original temp sender and the terminal on the top is correct for the slide on connector.
I did a heart transplant on mine but my new block didn't have a place for it in the factory location so I had to install it in the intake manifold near the goose neck. In my opinion the factory location gives a much more accurate temp of the engine since it's nearer the water jacket, if you install your gage in the intake you'll see a considerable drop in temp reading.
You'll see quite a range of temps on the exhaust manifold depending on how hard the engine is working. 300 deg is pretty cool, you must have taken the reading shortly after start up and idling.
I ended up not installing this tri-power setup, I sold the thing.
Last edited by TopGunn; Jul 15, 2010 at 09:44 AM.
