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I replaced my heads with Edelbrock E street heads,these heads are 1/2,not 3/8 like stock heads,so ordered a new from a earlier model that were 1/2,I think early 70’s. The problem is I can’t screw it all the way in because it’s wedging,actually barely the corners are hitting headers,but I can get half the threads in the head before it hits headers,so not sure if that’s enough,and if it would seal.so,first will this even work with my 🚗,and to get it screwing all the way in tight,do I need to take a little off the flange of header.
Why not use an adapter for the sender rather than taking a chance the sender will not provide an accurate reading to the gauge?
Grind the header flange if you have a clearance problem.
I would grind the header flange for it to clear, or consider moving it to the intake. Additionally, before you install it you should test it. Lots of the replacements do not have the correct resistance for the gauge to read properly at temperature. To test it, put it in boiling water on the stove and read the resitance to make sure it is where it needs to be.
I tried that also,but then the bushing will hit it also,because the other side passenger side also has a sensor,I think either for the transmission or possibly something with the fan,not sure,but I have to use the original sensor for that side,so I do have a bushing to reduce to the 3/8,but still same issue it is hitting headers,so sounds like taking the headers off again,and grind enough off to clear it.
Thanks,I will,It did work,not sure how accurate it was,I only drove it a 100 miles after I bought it in March,before I decided not thinking how much work this was going to be,and tear the engine all apart.but can’t wait to fire it up.
I think I saw on one of my earlier post,that someone said I can switch to intake,but curious where at,I do have two holes, one for the water temperature sensor,and one for heater hole,is there another hole somewhere I can use? This,I have assuming that is heater hose that runs to water pump. I have to replace the waterneck to upright to put my temperature sensor there.so,where could you put another sensor?
Sorry,not running to the water pump,but it is a 1/2 inch hose,that runs down the fire wall,I’m guessing heater hose.and as you can tell,that my fuel line also run right over it,so will get a 1 nipple or something to raise it up.
That is truly the thickest header flange I have ever seen. What are those, 7/16?
I would take a Sharpie and trace on the header flange where that sensor needs to go and how much clearance too. Then move the header back from the head and grind away. Perhaps a Dremel w/ metal cutting bit.
Regardless of what type of thread sealant you use, only apply it to the last few threads, away from the tip. You want a good coolant seal, but you also want an excellent GRD for the sensor / gauge accuracy.
I tried that also,but then the bushing will hit it also,because the other side passenger side also has a sensor,I think either for the transmission or possibly something with the fan,not sure,but I have to use the original sensor for that side,so I do have a bushing to reduce to the 3/8,but still same issue it is hitting headers,so sounds like taking the headers off again,and grind enough off to clear it.
I mounted my original sensor on the intake manifold where that plug is under the coolant water hose outlet in your last picture above... also have a newer digital temp sensor mounted in the passenger side head... They read the same. electric fan sensor mounted in drivers side head.
Yea,that want work,the electric fan wire is in the same wire harness as the starter motor,which I just replaced a few weeks ago,and that wire comes with that harness,but,the sensor on the drivers side which is the one I’m referring to is I think oil pressure,so you can’t check oil pressure in the intake can you? And the cooling temperature sensor will go in the intake,as soon as I get a taller waterneck. But thanks.
newer waterneck im running now is taller but the old chrome one had plenty of clearance too.
Originally Posted by Golferdad
Yea,that want work,the electric fan wire is in the same wire harness as the starter motor,which I just replaced a few weeks ago,and that wire comes with that harness,but,the sensor on the drivers side which is the one I’m referring to is I think oil pressure,so you can’t check oil pressure in the intake can you? And the cooling temperature sensor will go in the intake,as soon as I get a taller waterneck. But thanks.
Im commenting on the temp sensor your thread title is about.. I didnt see anything about oil pressure sensors, those arent typically mount in the heads either are they?
Just an FYI I ran my sensor with the same waterneck for years before recently updating it for cosmetic reasons. there was no clearance issues.
Last edited by augiedoggy; Jun 24, 2022 at 11:58 PM.
Yea,I hadn’t got to that one yet that goes to the water pump,and I know it had a 8 inch tubing on it that runs up through the AC bracket some how.so if anyone has a picture of the hose coming from the water pump,with AC,I love to see it.I know about how it goes,but not sure,although it can’t go to many ways,but will tackle it tomorrow and take some pictures.
Yea,sorry at first I thought that was the temperature sensor,but I was mistaken and was talking about the oil pressure,sorry,but yes the cooling sensor will go on underneath the waterneck.
Yea,yours is turned different than mine,as you can tell by my picture it goes right over the top of mine,but ordered a taller one that should fix that issue anyway.
Yea,yours is turned different than mine,as you can tell by my picture it goes right over the top of mine,but ordered a taller one that should fix that issue anyway.
This is the waterneck I originally had Iike I said above, same as you have now.. The sensor was mounted under it as well.
What size threads is that sensor,I have the same issue with it also my new Edelbrock intake is bigger than my stock,so,now looks like I need that coolant sensor 1/2 inch.so pretty much everything on these heads and intake are bigger holes than my stock ones.and I could put a reduced to 3/8,but it would raise the sensor up,being further from the intake,which Im sure would throw off the temperature.or would it still get a correct temperature reading.
Temperature sensor
