Help! Trying to install manifold probe....
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RE: Help! Trying to install manifold probe....
ORIGINAL: firemedic740
Well, I can tell by the pic that it is not gonna work. Your gonna need a different type of threaded tap and a bigger one. Sorry, what is the brand on the probe?
Well, I can tell by the pic that it is not gonna work. Your gonna need a different type of threaded tap and a bigger one. Sorry, what is the brand on the probe?
Captain
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RE: Help! Trying to install manifold probe....
That tap looks to be for "fine" thread. May have been incorrectly packaged. campermama head done to local tool store and look or have someone get you the correct tap.
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RE: Help! Trying to install manifold probe....
That is definatly not the right tap. In fact don't even drill the hole yet till you find out what it is.
Hold off till tommorow and I will find the right drill size for you. That looks like a 1/4" NPT thread to me. NPT threads come in standard sized and only have one type of thread. In other words that 1/8" - 27 NPT tap you have there is the only thread for a 1/8 NPT, for example, there is no such thing as a "Coarse Thread 1/8 NPT. The standard sizes are 1/8 NPT , 1/4 NPT , 1/2 NPT , ect, ect.
Best thing for you to do is take it down to the auto parts or to a hardware store and match the probe up with a NPT nut. then you will know for sure. But I place my bet that it's a 1/4 NPT.
Also, when you tap that hole, tap a little at a time. DO NOT run the tap all the way in. Tap a little bit and use some kind of oil on the tap, then screw your probe in and test the fit. Continue this untill you have all but the last thread of the probe scewed in tight. Any more and you will not have a tight connection and it will leak or blow the brobe out with the threads with it. Any less and you chance not having enough threads in the manifold and could eventually blow it out as well.
Another reason to tap a little at a time is, alot of times you will waller out the threads while tapping and even though the tap is not in very far, the thread will be loose and sloppy.
Take your time and keep the tap straight!!
Hold off till tommorow and I will find the right drill size for you. That looks like a 1/4" NPT thread to me. NPT threads come in standard sized and only have one type of thread. In other words that 1/8" - 27 NPT tap you have there is the only thread for a 1/8 NPT, for example, there is no such thing as a "Coarse Thread 1/8 NPT. The standard sizes are 1/8 NPT , 1/4 NPT , 1/2 NPT , ect, ect.
Best thing for you to do is take it down to the auto parts or to a hardware store and match the probe up with a NPT nut. then you will know for sure. But I place my bet that it's a 1/4 NPT.
Also, when you tap that hole, tap a little at a time. DO NOT run the tap all the way in. Tap a little bit and use some kind of oil on the tap, then screw your probe in and test the fit. Continue this untill you have all but the last thread of the probe scewed in tight. Any more and you will not have a tight connection and it will leak or blow the brobe out with the threads with it. Any less and you chance not having enough threads in the manifold and could eventually blow it out as well.
Another reason to tap a little at a time is, alot of times you will waller out the threads while tapping and even though the tap is not in very far, the thread will be loose and sloppy.
Take your time and keep the tap straight!!
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RE: Help! Trying to install manifold probe....
ORIGINAL: energinerbuzzy
That is definatly not the right tap. In fact don't even drill the hole yet till you find out what it is.
Hold off till tommorow and I will find the right drill size for you. That looks like a 1/4" NPT thread to me. NPT threads come in standard sized and only have one type of thread. In other words that 1/8" - 27 NPT tap you have there is the only thread for a 1/8 NPT, for example, there is no such thing as a "Coarse Thread 1/8 NPT. The standard sizes are 1/8 NPT , 1/4 NPT , 1/2 NPT , ect, ect.
Best thing for you to do is take it down to the auto parts or to a hardware store and match the probe up with a NPT nut. then you will know for sure. But I place my bet that it's a 1/4 NPT.
Also, when you tap that hole, tap a little at a time. DO NOT run the tap all the way in. Tap a little bit and use some kind of oil on the tap, then screw your probe in and test the fit. Continue this untill you have all but the last thread of the probe scewed in tight. Any more and you will not have a tight connection and it will leak or blow the brobe out with the threads with it. Any less and you chance not having enough threads in the manifold and could eventually blow it out as well.
Another reason to tap a little at a time is, alot of times you will waller out the threads while tapping and even though the tap is not in very far, the thread will be loose and sloppy.
Take your time and keep the tap straight!!
That is definatly not the right tap. In fact don't even drill the hole yet till you find out what it is.
Hold off till tommorow and I will find the right drill size for you. That looks like a 1/4" NPT thread to me. NPT threads come in standard sized and only have one type of thread. In other words that 1/8" - 27 NPT tap you have there is the only thread for a 1/8 NPT, for example, there is no such thing as a "Coarse Thread 1/8 NPT. The standard sizes are 1/8 NPT , 1/4 NPT , 1/2 NPT , ect, ect.
Best thing for you to do is take it down to the auto parts or to a hardware store and match the probe up with a NPT nut. then you will know for sure. But I place my bet that it's a 1/4 NPT.
Also, when you tap that hole, tap a little at a time. DO NOT run the tap all the way in. Tap a little bit and use some kind of oil on the tap, then screw your probe in and test the fit. Continue this untill you have all but the last thread of the probe scewed in tight. Any more and you will not have a tight connection and it will leak or blow the brobe out with the threads with it. Any less and you chance not having enough threads in the manifold and could eventually blow it out as well.
Another reason to tap a little at a time is, alot of times you will waller out the threads while tapping and even though the tap is not in very far, the thread will be loose and sloppy.
Take your time and keep the tap straight!!
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RE: Help! Trying to install manifold probe....
When I did mine I used one of these little antenna magnets to pull out all the shavings. It was amazing how many were in there. I did it after drilling it and again after tapping it.
Came out looking like this a couple times.
Came out looking like this a couple times.
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RE: Help! Trying to install manifold probe....
dont forget to back off 1 full turn for every 1/4 turn foward and use plenty of oil and as Buzzy said :TAKE UR TIME AND TAP STRAIGHT
Ho....dont tap right in the middle of the manifold,there is a divider there..dont ask me how i know that...trust me i know that...instructions are for sissies
Ho....dont tap right in the middle of the manifold,there is a divider there..dont ask me how i know that...trust me i know that...instructions are for sissies
Veteran
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From: New Meadows, Idaho
RE: Help! Trying to install manifold probe....
Here is my simple little write up on installing my pyro probe...
http://mopar.mopar1973man.com/2002%2...icol_gages.htm
http://mopar.mopar1973man.com/2002%2...icol_gages.htm
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RE: Help! Trying to install manifold probe....
Hey mopar1973man,
What angel was that picture taken with the probe installed?
I went to my local hardware store first thing and got the 1/4" -18 tap and 7/16" bit. Did you start with a smaller bit and work up to the size you needed?
I will attempt to drill after work this evening.
By the way, is the rest of the installation easy after the drill/tap??
Thanks!!
What angel was that picture taken with the probe installed?
I went to my local hardware store first thing and got the 1/4" -18 tap and 7/16" bit. Did you start with a smaller bit and work up to the size you needed?
I will attempt to drill after work this evening.
By the way, is the rest of the installation easy after the drill/tap??
Thanks!!
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Joined: Mar 2008
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From: New Meadows, Idaho
RE: Help! Trying to install manifold probe....
ORIGINAL: campermama
Hey mopar1973man,
What angel was that picture taken with the probe installed?
The pic was taken from the driven side looking across the valve cover...
I went to my local hardware store first thing and got the 1/4" -18 tap and 7/16" bit. Did you start with a smaller bit and work up to the size you needed?
I started with a small bit as a pilot hole. Using grease on my bit and drilling very slowly. I would wipe the grease off and chips andregrease the bit and go back at it... I did the same (grease the tap)while tapping it too...
I will attempt to drill after work this evening.
Just take your time...
By the way, is the rest of the installation easy after the drill/tap??
Just drill and tap it... Then screw it in... Wire it up...
Thanks!!
Hey mopar1973man,
What angel was that picture taken with the probe installed?
The pic was taken from the driven side looking across the valve cover...
I went to my local hardware store first thing and got the 1/4" -18 tap and 7/16" bit. Did you start with a smaller bit and work up to the size you needed?
I started with a small bit as a pilot hole. Using grease on my bit and drilling very slowly. I would wipe the grease off and chips andregrease the bit and go back at it... I did the same (grease the tap)while tapping it too...
I will attempt to drill after work this evening.
Just take your time...
By the way, is the rest of the installation easy after the drill/tap??
Just drill and tap it... Then screw it in... Wire it up...
Thanks!!