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-   -   Nox 800 coil cover issues (https://metaldetectingforum.com/showthread.php?t=276407)

KOB 09-07-2019 01:13 PM

Nox 800 coil cover issues
 
So I've had the 15" coil for about 3 months now. Strictly for beach hunting. I take the cover off and rinse after each use. I am certain that the cover is all snapped in properly before each hunt. It just seems that it doesn't seal the water/sand out very well.

I have noticed while on the beach after a half hour , that tilting the coil from side to side a foot off the ground that I get a falsing signal. Anybody have this issue ? It's filled with sand and some water. Yet the cover is on snug. Same false signal at the end of each swing.

I thought of applying a small bead of silicone at the edges to seal it. Or a bedliner spray. I could take this off when needed with a little work. Or possibly no cover , with a bedliner spray , making it more permanent. Have any of you tried this ? Had similar issues ? Any solutions ? Or do I just have a bad coil and cover ? It works great until this happens, then it's falsing along with mixed vdi numbers.

slider66 09-07-2019 01:18 PM

You probably need to lower the sensitivity. Could be your location.


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ROBOTCOP13 09-07-2019 01:25 PM

I don't think coil covers were ever meant to keep out sand and water for beach hunters. It's purpose is to protect the coil from scratches by dirt hunters.

I think the silicon trick will keep the sand out for beach hunters.

KOB 09-07-2019 01:57 PM

Quote:

Originally Posted by ROBOTCOP13 (Post 3145328)
I don't think coil covers were ever meant to keep out sand and water for beach hunters. It's purpose is to protect the coil from scratches by dirt hunters.

I think the silicon trick will keep the sand out for beach hunters.

Thx Robo. I was thinking kinda the same. Covers were more for dirt. Otherwise they would have made it all inclosed.

L0S3R 09-07-2019 02:32 PM

They are definitely designed for us dirt diggers. It’s to protect against rocks, dirt clumps etc. sand is abrasive but once in the cover it doesn’t move as much.

Sorry to hear it gets in so easy though. Silicone is not a bad idea but make it perfect. Would suck to have 1 tiny hole just big enough for it to still get in.


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OBN 09-07-2019 03:12 PM

This is a xcalibur coil n coil cover,
 
I filled the coil cover 1/3 full of a two part epoxy then set the coil into..lt comes gushing out but nothing gets in there now. xcalibur coils are famous for separating and letting water into the insides.

KOB 09-07-2019 04:07 PM

Quote:

Originally Posted by OBN (Post 3145379)
I filled the coil cover 1/3 full of a two part epoxy then set the coil into..lt comes gushing out but nothing gets in there now. xcalibur coils are famous for separating and letting water into the insides.

Obviously this is permanent. So when the coil eventually goes bad you just buy a new one. I was thinking spraying the bottom of coil ( without the cover) with bedliner. Basically the same thing.

dewcon 09-07-2019 06:14 PM

Coil flip causes falsing....especially with a sensitive machine.

KOB 09-07-2019 06:28 PM

Quote:

Originally Posted by dewcon (Post 3145444)
Coil flip causes falsing....especially with a sensitive machine.

I will have to try tilting my coil at the beach before I get it wet. See if it falses before it gets sand in it. Thanks

Cfmct 09-07-2019 07:32 PM

Quote:

Originally Posted by KOB (Post 3145407)
Obviously this is permanent. So when the coil eventually goes bad you just buy a new one. I was thinking spraying the bottom of coil ( without the cover) with bedliner. Basically the same thing.

Bed Liner won't last long enough... wears out after a week or so.. I epoxy all my coils inside the coil covers because I am a scrubber when I swing when I wear out the cover I just add another one and epoxy it in.. saves my coils from any wear... they may not look pretty but it works.

KOB 09-07-2019 07:55 PM

Ok guys. Thanks for the tips. Looks like I'm gonna glue that sucker on. Silicone probably won't last either.

FoiledAgain 09-08-2019 12:23 AM

Quote:

Originally Posted by Cfmct (Post 3145461)
Bed Liner won't last long enough... wears out after a week or so.. I epoxy all my coils inside the coil covers because I am a scrubber when I swing when I wear out the cover I just add another one and epoxy it in.. saves my coils from any wear... they may not look pretty but it works.

Craig, how do you get the old cover off if it's epoxied on?

Cfmct 09-08-2019 07:49 AM

Quote:

Originally Posted by FoiledAgain (Post 3145569)
Craig, how do you get the old cover off if it's epoxied on?

I don't... its so worn off all I do is push a new one on and epoxy it... I scrub the rocks... when its ready to be replaced only part of old coil cover that is left is a little on the bottom the sides all fall off.. my coil is constantly bumping into rocks and things so the sides are usually first to go...

FoiledAgain 09-08-2019 10:01 AM

Okay, got it. I was thinking that the epoxy sealed all around the vertical sides/edges, which would be a b**h to get off. Thanks.

KOB 09-08-2019 11:15 AM

I wonder after 5 years if that coil is about 4 inches thick !

Cfmct 09-08-2019 11:52 AM

Quote:

Originally Posted by KOB (Post 3145679)
I wonder after 5 years if that coil is about 4 inches thick !

No :lol: is it a little heavier sure... but in the water I don't notice.. no detector is heavy to me I swing 17 pound hedge trimmers over my head so a little extra weight on a detector is nothing to me.

KOB 09-08-2019 03:52 PM

Quote:

Originally Posted by Cfmct (Post 3145693)
No :lol: is it a little heavier sure... but in the water I don't notice.. no detector is heavy to me I swing 17 pound hedge trimmers over my head so a little extra weight on a detector is nothing to me.

You stud ! To the average lay person , 17 lbs would appear to be child's play. But that kind of weight , arms extended , overhead for a few hours , will leave most mortals in tears.....

L0S3R 09-08-2019 04:37 PM

Quote:

Originally Posted by KOB (Post 3145765)
You stud ! To the average lay person , 17 lbs would appear to be child's play. But that kind of weight , arms extended , overhead for a few hours , will leave most mortals in tears.....



So true, wanna find out how hard it is? Take a can food (green beans, chili etc) and hold your arm straight out. Time it, you won’t last long even if you’re a weight lifter. It’s no joke doing that kind of work.


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Beachbuzz 09-08-2019 06:19 PM

Quote:

Originally Posted by KOB (Post 3145322)
So I've had the 15" coil for about 3 months now. Strictly for beach hunting. I take the cover off and rinse after each use. I am certain that the cover is all snapped in properly before each hunt. It just seems that it doesn't seal the water/sand out very well.

I have noticed while on the beach after a half hour , that tilting the coil from side to side a foot off the ground that I get a falsing signal. Anybody have this issue ? It's filled with sand and some water. Yet the cover is on snug. Same false signal at the end of each swing.

I thought of applying a small bead of silicone at the edges to seal it. Or a bedliner spray. I could take this off when needed with a little work. Or possibly no cover , with a bedliner spray , making it more permanent. Have any of you tried this ? Had similar issues ? Any solutions ? Or do I just have a bad coil and cover ? It works great until this happens, then it's falsing along with mixed vdi numbers.

I saw one of Tony Eisenhower’s videos and he was having the issue with his coil cover filling with sand. He just removed the cover and epoxied the whole bottom of his coil. He says it works fine. No issues.

Cfmct 09-08-2019 07:04 PM

Quote:

Originally Posted by KOB (Post 3145765)
You stud ! To the average lay person , 17 lbs would appear to be child's play. But that kind of weight , arms extended , overhead for a few hours , will leave most mortals in tears.....


Been doing it for 30 years... ;) I love working outside.

Steve 09-08-2019 08:14 PM

You could always use 100 zip ties instead of a coil cover. Easy to clean and replace

KOB 09-08-2019 09:03 PM

Quote:

Originally Posted by Steve (Post 3145830)
You could always use 100 zip ties instead of a coil cover. Easy to clean and replace

The cut ends would grab and hold the seaweed.

Steve 09-08-2019 09:45 PM

Quote:

Originally Posted by KOB (Post 3145848)
The cut ends would grab and hold the seaweed.

Depends on where and when. I don't use coil covers at all, but my competitors sleeping and living in a tent beside the beach use zip ties

KOB 09-08-2019 10:03 PM

Quote:

Originally Posted by Steve (Post 3145859)
Depends on where and when. I don't use coil covers at all, but my competitors sleeping and living in a tent beside the beach use zip ties

Then the zip ties must work. They must be smoking you in the finds department. Sleeping, eating , breathing , metal detecting 24/7. Sounds like you best move on to a different beach !

Steve 09-08-2019 10:45 PM

Quote:

Originally Posted by KOB (Post 3145870)
Then the zip ties must work. They must be smoking you in the finds department. Sleeping, eating , breathing , metal detecting 24/7. Sounds like you best move on to a different beach !

Every single beach in the country is covered with them. Been discussing this problem on here for years. .. it only gets worse every year, and the eq has helped speed that up.

During fresh drop season my old hot spot will see on,average of 24 hunters a night regardless of weather. The beach is a little smaller than a football field. Wet and dry. No etiquette or rules for the 24. No finds pouch. Every single 1 of them owns the beach and everyone else is in their way. If 1 guy is digging lots of holes, he will be surrounded and have so much interference the detector doesn't really function well

KOB 09-08-2019 11:49 PM

Quote:

Originally Posted by Steve (Post 3145889)
Every single beach in the country is covered with them. Been discussing this problem on here for years. .. it only gets worse every year, and the eq has helped speed that up.

During fresh drop season my old hot spot will see on,average of 24 hunters a night regardless of weather. The beach is a little smaller than a football field. Wet and dry. No etiquette or rules for the 24. No finds pouch. Every single 1 of them owns the beach and everyone else is in their way. If 1 guy is digging lots of holes, he will be surrounded and have so much interference the detector doesn't really function well

Ugh.... sounds a little over the top , but I see it. I came to realize a few years ago it was fruitless. Gold is too high per ounce - bottom line. Thought I would share some knowledge. Give back. You know ? Brought a couple friends into the hobby....well...that backfired. Now I'm back hunting solo.
Some guys here know I'm experienced and follow me. When i start digging a few holes in a hot spot , they will bunny hop ahead of me. Then I jump ahead of them. They go crazy ! Leading them about a quarter mile away , I double back and return to my honey hole ! Hahaha !!! But your right...sometimes I show up and there's just too many there...and I move on...

Surf Master 09-08-2019 11:56 PM

Cover on the nox
 
I like it, doesn't come off the the Excaliburs' in the water, wet, comes off easy , unlike the DF, yes you do have to keep thumb finger pressing, start on the outside , than work inside till all the cracking noice is gone, Kob get Chickie With It :cheer::cheer::cheer::cheer::cheer::laughing:

KOB 09-09-2019 12:06 AM

Quote:

Originally Posted by Surf Master (Post 3145911)
I like it, doesn't come off the the Excaliburs' in the water, wet, comes off easy , unlike the DF, yes you do have to keep thumb finger pressing, start on the outside , than work inside till all the cracking noice is gone, Kob get Chickie With It :cheer::cheer::cheer::cheer::cheer::laughing:

Get chickie....lol...it's the water and sand constantly getting underneath the coil cover. I'm just going to epoxy it. Won't have to worry about it again , no falsing or cleaning.

Surf Master 09-09-2019 12:11 AM

Kob
 
I can see Epoxy on a Excalibur Coil , but the Nox , over kill, beside's that will VOID your warrenty on the Coil, maybe not the head , but you need to reconsider bro . after the 3 year warrenty is up , until than ya better not get over Chicky with it how bought that .:police::crazy::crackup:

Steve 09-09-2019 01:34 AM

Quote:

Originally Posted by KOB (Post 3145910)
Ugh.... sounds a little over the top , but I see it. I came to realize a few years ago it was fruitless. Gold is too high per ounce - bottom line. Thought I would share some knowledge. Give back. You know ? Brought a couple friends into the hobby....well...that backfired. Now I'm back hunting solo.
Some guys here know I'm experienced and follow me. When i start digging a few holes in a hot spot , they will bunny hop ahead of me. Then I jump ahead of them. They go crazy ! Leading them about a quarter mile away , I double back and return to my honey hole ! Hahaha !!! But your right...sometimes I show up and there's just too many there...and I move on...

Yup... it's at a point now for me where skill means very little. It's like getting swarmed by an ant colony

Bayoutalker 09-11-2019 08:46 AM

After reading some of these comments I tried to remove the coil cover on my Nox 800. I never could get it to come off and I didn't want to pry too hard. Are some of these glued on from the factory?

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Waveoff 09-11-2019 09:26 AM

Quote:

Originally Posted by Bayoutalker (Post 3146678)
After reading some of these comments I tried to remove the coil cover on my Nox 800. I never could get it to come off and I didn't want to pry too hard. Are some of these glued on from the factory?

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The cover sort of snaps in around the edges. If you have a lot of crud build up it can be difficult to snap off. I was afraid to remove mine for the first time but slowly worked my way around the coil snapping off small sections at a time. Try grabbing a part of the coil where you can get your thumbs close to each other, bottom of the coil facing away from you and push the edge of the coil cover away from you.

Bayoutalker 09-11-2019 02:14 PM

I managed to find one small loose spot but it didn't want to go beyond that spot. I think I'll just leave it alone unless it causes a problem unless someone thinks that is a bad idea.

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KOB 09-11-2019 06:08 PM

Quote:

Originally Posted by Bayoutalker (Post 3146746)
I managed to find one small loose spot but it didn't want to go beyond that spot. I think I'll just leave it alone unless it causes a problem unless someone thinks that is a bad idea.

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Look down the very center of the coil. It's wider and on each side you will see small tabs that will snap on and off into place. This might be your problem area. I was apprehensive at 1st when I did mine the 1st time. It won't break. After that , it's easy. But you do need to clean it !

L0S3R 09-11-2019 06:42 PM

If it’s “stuck” it needs cleaned


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KOB 09-12-2019 10:30 AM

Quote:

Originally Posted by OBN (Post 3145379)
I filled the coil cover 1/3 full of a two part epoxy then set the coil into..lt comes gushing out but nothing gets in there now. xcalibur coils are famous for separating and letting water into the insides.

It's done ! I did exactly that. Filled up the cover with 2 part epoxy , oozing all out. Then after the coil was all snapped firmly in place , I brushed all the edges for a more cleaner finish. Looks like a factory job ! Had to work very fast as this all set up in like 5 minutes. Works great , no longer have to worry about constantly taking off the cover to clean it. Thanks !

Swinglow 09-12-2019 10:34 AM

Coil covers were meant for dirt hunters....and people who hunt Connecticut beaches...aka rocks with some sand mixed in.

KOB 09-12-2019 11:19 AM

Quote:

Originally Posted by Swinglow (Post 3147014)
Coil covers were meant for dirt hunters....and people who hunt Connecticut beaches...aka rocks with some sand mixed in.

And people who DON'T use coil covers are ones whose coils never touch the ground !

Bayoutalker 09-12-2019 06:24 PM

Ok I got it off and cleaned it. There wasn't much there. I guess that means I'm not using it enough. [emoji38] Of course I already knew that.

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KOB 09-12-2019 07:16 PM

Quote:

Originally Posted by Bayoutalker (Post 3147165)
Ok I got it off and cleaned it. There wasn't much there. I guess that means I'm not using it enough. [emoji38] Of course I already knew that.

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Glad you finally did it. It will be much easier for you now.


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