Temperature sensor modification
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I had offered to try and modify a sender from ½ NPT to ⅜ NPT for a member but he never followed thru...last week I got a PM from another member wanting to try one.
He sent me this one ACDelco....... G1852 Attachment 1607624 I re-machined it on one of my CNC lathes...it looks like it will work just fine... sending it back for install....we'll see....? Attachment 1607625 |
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That's purty..that's a great idea..you should do some of these with metric threads to fit the LS heads..should be a fair demand for those...would beat drilling and tapping the head...
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What would the cost for something like that be?
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The hole size in the ls head is 12x1.25...that would be to small to mod the sensor...it would have to be 12mm (.472) major od with 10.466mm (.412) minor od..
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I've seen other threads about folks doing this in the past. Great to see someone doing it again. I've found 2 VDO sensors that are very close to stock (electrically) in 1/8" NPT and come with a 3/8" donut adapter that works fairly well (there's an old thread on here about it). But nothing beats the stock sensors when paired up with the stock gauges. I'll definitely keep this in mind if I want to swap back to a stock sensor. This is clearly the best option.
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A1971Blazer,
Have you heard back on the install? I'm getting ready to put my Vortec together. I noticed that your threads look a lot nicer than the factory threads, so I imagine it was a good fit. Any concern with weakening the brass, or is there enough meat there that it's not a concern? By the way, do you live up by the Cherokee National Forest? I have family that lives just the other side of the mountains, between Blowing Rock and Lenoir, NC. It's definitely what I would call God's country. |
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There is enough material on the sensor for the 3/8 NPT.......but that's the limit. I cut an old one apart to verify... Attachment 1630417 I live near the Cherokee NF but I live on the Tennessee side.....about 30 minutes from the infamous "Tail of the Dragon" highway 129 through Deals Gap into North Carolina. If you want one modified...I'd be happy to do it..... |
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That looks really good. I'm sending you a PM.
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I can attest both to Whit's excellent work and the functionality of that Delco part.
It's so nice to know the temp again. |
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Saving for later.......
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I got mine from Whit. Nice guy and beautiful work.
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Thanks for the kind words guys....this modification is easy for me to do...I'm happy to help fellow members to solve the dilemma of getting the temp gauge working properly..
For me......I like for everything to work like it should... |
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I would be interested in one of these. Need the sending unit.
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the price will be $39.00 for the sensor, modified to 3/8 NPT....and shipped to you... PM me if you want to reserve one of them....thanks! |
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OK....I got them and modded for the ⅜-NPT....
2 are spoken for already.....(PM sent)...will ship as soon as paypal payment is received...thanks! 2 more available for immediate shipping Attachment 1708198 |
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I will take both of the senders you have left. Send me a PM with your PayPal info and I will send payment. Thanks.
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All 4 shipped today....you should see them Friday or Saturday...thanks again
Anyone else interested....let me know.....I'll get some more going |
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I'm still doing these for anyone needing a modified sensor....it's not a money maker for me.......just a favor for members...
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are these for SBC Vortec heads in a 67-72? Are they the same for BBC Vortec heads?
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There were several lengthy discussions about trying to find a sensor that would fit and read the correct temperature..... I discovered that once upon a time, there was a member that was doing the modification, but for some reason, is no longer doing so. That's when I offered to do them... As for it fitting the BBC Vortec heads....I can't give you a definite answer. What is the engine designation number/code and year...I can probably find out.. |
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If I'm not mistaken all GM engines from the mid '80 and up have 3/8" NPT for the temp senders in the heads.
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As for it fitting the BBC Vortec heads....I can't give you a definite answer.
What is the engine designation number/code and year...I can probably find out.. I will get this info too u hopefully within a few days. Thx!! |
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I'll take one if you are still making them?
Thanks. |
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Another member recommends for this mod and I would like to purchase one from you. Please let me know how to get the payment to you and I will get it going.
Thanks David |
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This is a great idea and you are a good man for doing this for folks! It's guys like you that make this place great. I wish there was an option for the LS guys besides drilling and tapping the heads. I'm surprised that no one has found a metric sender that will work. That would definitely be the easiest route.
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I still have several of these that are ready to ship....if anyone needs one
I can make more if necessary |
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I will take one, if you have anymore? My pm box is currently full so I need to empty it or update my subscription, I’ll try and get that taken care of today.
Gary |
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Paypal has been sent !
Gary |
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Received it today, very professionally done !!!
Thanks, Gary |
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I use a little dab of pipe sealing compound... |
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I'm not pushing these....they aren't a big money-maker for me
I mainly do them just as a way to help solve an issue. I have 9 in stock....ready to ship if anyone needs one. Attachment 1978214 |
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Got mine today. Looks perfect. You provide a great service modifying this as there really are no options. Again Thank you!!
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