Image

Static problems - Fix for some big trucks!

Need some help or advice on how to set up a mobile. This is the place to ask.

Moderator: JR Moderator

User avatar
mopar2ya
Skipshooter
Skipshooter
Posts: 410
Joined: Sunday, 04 February 2007, 13:52 PM

Static problems - Fix for some big trucks!

Post by mopar2ya » Wednesday, 18 April 2007, 10:15 AM

Here is an article I wrote that I have posted from time to time on various forums. I have made some minor changes to the original post to reflect some findings as time went on. Hopefully they will make a sticky out of it.

The article addresses a static problem that comes and goes with precipitation, different road and bridge surfaces, tar strips, and to some extent, swerving with the truck. It is a problem as road speed climbs above 30 mph. The problem is most commonly noticed in Freightliner trucks, but is definitely found in other brands as well.

I originally wrote the instructions in 2001 after I was issued the Freightliner Colombia.


===================================================

I had this EXACT same problem and I solved it... For the most part. Keep in mind that these are my theories and others may disagree, but I have tested my ideas on my truck (also a Columbia) and have had good results. Here is what I noticed.

Static changes when pavement changes. Examples are bridges, wet pavement (this eliminates problem completely), stripes on road, tar strips, etc.

Static changes when you apply brakes. But only when they are applied heavily. (Update: I have found that some trucks don't require quite as much brake pressure to eliminate the static as the original one did.)

Static doesn't change when you apply trailer brakes only.

The last two puzzled me. Why only heavy braking, and why only the tractor brakes. Here is my conclusion. It is the steer tires causing the problem (it is also the trailer, but you will only notice that problem once you fix the truck because the truck is closer to the antenna and drowns out the trailer noise).

Why? I believe it is because the only thing connecting the steers to the truck are the bearings which are now suspended in synthetic lube which does not dissipate static. When you apply the brakes, it only works under heavy braking because the steers are proportioned to have less braking than the drives. The drives don't have the problem because they are bolted to the axle shafts and gears which seem to dissipate the static much better.

Once you fix the steers, not only will you notice that your CB works better, but also your AM radio. And you will also notice that certain trailers have the problem also. But, this is not as much of a problem because the trailer tires are so far from the antenna. If you haul the same trailer, you could apply the fix to the trailer as well.

The fix? Powdered graphite added to the front hubs. I added it and problem solved. I used approximately 8 ml of powdered graphite per hub.

My powdered graphite came from Panef Corp. in Milwaukee, WI. It is Powdered Graphite Lubricant L-600. I purchased a 1 lb. lifetime supply for $13.00 from True Value Hardware.

Now, not only will you hear 10X better, but you will also be amazed at how many trucks you pass that you will “hear” through your radio, that have the same problem. I pass dozens every night.

If you are worried about adding a foreign substance to your hubs, I was too. I didn’t want to add anything with a liquid in it that might have a bad reaction with the existing lube. That is why I went with completely dry graphite. I have approximately 60,000 miles so far without any relapse of the problem, or wheel bearing failure.

If you are wondering why this works, it is because Graphite is electrically conductive, and will dissipate the static through the wheel bearings.

=======================================

As a current update, that 2001 Columbia is still in our fleet with over 650,000 miles on it and my newer 2005 Columbia has the same fix with 330,000 miles on it and no sign of bearing failure as a result of the added graphite. I have since applied the fix to many trucks with fantastic success, and not all of them were Freightliners. But, I will say this. Eventually the graphite seems to lose its ability to dissipate the static and the problem eventually starts to return. It never reaches the magnitude that it was originally, but it comes back nonetheless. This seems to happen sometime after approximately 200,000 miles. When this happens you will have to clean the old lube out and put new lube in and new graphite as the old mixture will be too thick to add more graphite safely.

Something else worthy of mention. I now only use -way less- than 1 ml of graphite rather than 8 ml. 1 ml is every bit as effective as 8 ml but doesn't thicken up the lube as much, and will allow you to add more later without siphoning out the lube.

I would like to give credit to my best friend AD7DK for helping me with this discovery. His opinions and knowledge have always been invaluable and the fix would have not been discovered without him.

Take care,

Mopar

wan•na•boo (wah-nah-boo) Informal n. Derived of wan-na-bee 1. One who aspires to be a Peakaboo. 2. One who imitates the behavior, customs, or dress of a Peakaboo. 3. A product designed to imitate the qualities or characteristics of something built by a Peakaboo.
Last edited by mopar2ya on Thursday, 13 March 2008, 15:22 PM, edited 1 time in total.


User avatar
Worster
Duckplucker
Duckplucker
Posts: 153
Joined: Monday, 20 November 2006, 14:54 PM
Radio: Connex 3400HP
Antenna: Predator 10K SW
Name: Patrick
Location: All over Maine

Post by Worster » Wednesday, 18 April 2007, 10:59 AM

Very good info, I operate a Sterling which is associated with Freightliner, and i have to run the squelch up over half way at all times and i tried grounding the antennas and everything i could think of and nothing worked, i had good SWR's but a ton of static, i'll have to try that and see if that helps
My Bare feet:
Magnum S-6 Tuned by Clays Radio Shop Road King 56 (Sold)
Connex 4600 Turbo, Clays Radio Shop Road King 56 (Sold)
Connex 3400 HP, Sparkys CB Shack, Astatic 636L
2 Single Coil Predator 10K 12 inch shafts
"I'm Just a Matchbox Car playing in a Tonka Truck World"
Image



User avatar
vrich
2 PILL USER
2 PILL USER
Posts: 12
Joined: Monday, 26 March 2007, 12:50 PM
Location: Northern NJ

Post by vrich » Wednesday, 18 April 2007, 15:33 PM

I get a "pulse" sound in my am radio when by brakes are applied. (Not in the CB) I all ways thought it was all the new ABS stuff on the new trucks. It does not happen all the time. :shock:
Mine is in a 2007 KW W900.

User avatar
Peanut
Donor
Donor
Posts: 738
Joined: Monday, 18 December 2006, 14:25 PM
Name: Matthew
Location: S.E. Alabama
Contact:

Post by Peanut » Wednesday, 18 April 2007, 16:30 PM

Well thats good to know, thanks for the info. I will have to try that.
John 3:16



User avatar
Rex_foxhound
Wordwide & Qualified
Wordwide & Qualified
Posts: 2712
Joined: Monday, 09 January 2006, 14:38 PM
Radio: SWP G. Lee
Name: Rex
Location: Cumming, Ga
Referrals: 1

Post by Rex_foxhound » Wednesday, 18 April 2007, 19:07 PM

I made it a sticky.
It's a 10K World!!!!




User avatar
mopar2ya
Skipshooter
Skipshooter
Posts: 410
Joined: Sunday, 04 February 2007, 13:52 PM

Post by mopar2ya » Thursday, 19 April 2007, 3:39 AM

Thank you Rex_foxhound. Hopefully it will help some folks track down one particular problem.

As far as your issue vrich, I don't think the static problem and the fix that I described addresses your issue. The static problem that the graphite takes care of goes away when the brakes are applied. It doesn't get louder. You may be on to something when you accuse the ABS in your particular case.

Good luck,

Mopar

wan•na•boo (wah-nah-boo) Informal n. Derived of wan-na-bee 1. One who aspires to be a Peakaboo. 2. One who imitates the behavior, customs, or dress of a Peakaboo. 3. A product designed to imitate the qualities or characteristics of something built by a Peakaboo.

User avatar
OVERDRIVE
NEW DUCK
NEW DUCK
Posts: 2
Joined: Saturday, 21 April 2007, 18:05 PM

Post by OVERDRIVE » Tuesday, 24 April 2007, 19:08 PM

PUT SMALL TUBE OF GRAPHITE THAT I BOUGHT AT WALMART .023OZ IN FRONT HUBS ON MY CLASSIC FL.IT TOOK ALL THE STATIC OUT OF MY RADIO.THANKS

User avatar
mopar2ya
Skipshooter
Skipshooter
Posts: 410
Joined: Sunday, 04 February 2007, 13:52 PM

Post by mopar2ya » Wednesday, 25 April 2007, 3:36 AM

I am really glad to hear it worked for you!

Mopar

wan•na•boo (wah-nah-boo) Informal n. Derived of wan-na-bee 1. One who aspires to be a
Peakaboo. 2. One who imitates the behavior, customs, or dress of a Peakaboo. 3. A product
designed to imitate the qualities or characteristics of something built by a Peakaboo.
-.. --- -. - / ..-. --- .-. --. . - / - --- / -.. .-. .. -. -.- / -.-- --- ..- .-. / --- ...- .- .-.. - .. -. . / .-.-.- / .-.-.

User avatar
oneperfectrun
4 PILL USER
4 PILL USER
Posts: 38
Joined: Saturday, 14 April 2007, 20:56 PM
Location: North MS
Contact:

Post by oneperfectrun » Thursday, 10 May 2007, 6:41 AM

I have used the graphite myself in a few Volvo trucks with great success also. Just be careful no to put too much in. I added too much one night and had to have 2 new wheel seals installed the very next day. That particular night I added one tube in each wheel. It does work but just be careful with the amount.

User avatar
Steve
Donor
Donor
Posts: 178
Joined: Friday, 06 April 2007, 12:52 PM
Location: Greenville, NH
Referrals: 1

Post by Steve » Monday, 21 May 2007, 20:49 PM

oneperfectrun wrote:I have used the graphite myself in a few Volvo trucks with great success also. Just be careful no to put too much in. I added too much one night and had to have 2 new wheel seals installed the very next day. That particular night I added one tube in each wheel. It does work but just be careful with the amount.
This is what makes me nervous about trying this.. Even in small amounts I've got to wonder about the health(not weather it works.. it appears to do so :D ) but the overall health of the hub/seals/bearings etc etc when adding this. I've seen some mileage reports.. can anyone add to those mileage reports with this fix???

User avatar
mopar2ya
Skipshooter
Skipshooter
Posts: 410
Joined: Sunday, 04 February 2007, 13:52 PM

Post by mopar2ya » Tuesday, 22 May 2007, 7:23 AM

If you are worried about the lubrication properties of graphite; don't. It is used in assembly lube which is designed to reduce friction at the most critical time in an engines life, the first start. It wouldn't work as an additive in oil because it would be filtered out, and in quantity, possibly plug the filter.

I can't tell you why oneperfectrun had the problems he did. What I can tell you is that if graphite destroyed seals, it wouldn't be in assembly lube. Follow the instructions that were given as far as amount goes, and you will be happy with the result. Remember that what I am suggesting as an amount is eight times less than what I had used in a truck that was just turned in this month with somewhere way over 650,000 miles on it. The lube in that truck was disgusting! It probably didn't flow the way it is designed to. But, it still had no sign of bearing or seal failure. The other 5 trucks in our fleet that have had graphite added have had around 1 ml added with great results.

Keep in mind though that this fix is for a VERY specific problem. Don't bother applying graphite hoping to reduce injector noise, or any other noise other than the specific problem mentioned in the article.

Mopar

wan•na•boo (wah-nah-boo) Informal n. Derived of wan-na-bee 1. One who aspires to be a
Peakaboo. 2. One who imitates the behavior, customs, or dress of a Peakaboo. 3. A product
designed to imitate the qualities or characteristics of something built by a Peakaboo.
-.. --- -. - / ..-. --- .-. --. . - / - --- / -.. .-. .. -. -.- / -.-- --- ..- .-. / --- ...- .- .-.. - .. -. . / .-.-.- / .-.-.

User avatar
Ca Wildcat
2 PILL USER
2 PILL USER
Posts: 12
Joined: Wednesday, 06 June 2007, 8:05 AM
Location: Reno, Nv.

Post by Ca Wildcat » Thursday, 26 July 2007, 16:49 PM

i did this with a tube i got from wall mart, yes it fixed it. i hear static from other trks as i pass them....also now i just installed a 400 watt amp galexy elite, turn on my preamp wow stattic is very very bad to the point it not usefull at all any ideas?

User avatar
frogman
6 PILL USER
6 PILL USER
Posts: 69
Joined: Wednesday, 24 January 2007, 7:18 AM
Contact:

Post by frogman » Monday, 10 September 2007, 15:34 PM

OVERDRIVE wrote:PUT SMALL TUBE OF GRAPHITE THAT I BOUGHT AT WALMART .023OZ IN FRONT HUBS ON MY CLASSIC FL.IT TOOK ALL THE STATIC OUT OF MY RADIO.THANKS
that is awesome to hear i have a whole box of the stuff on the way...gonna sell it to my trucker friends...

User avatar
JAGER 139
NEW DUCK
NEW DUCK
Posts: 3
Joined: Friday, 03 August 2007, 19:26 PM

grounding

Post by JAGER 139 » Thursday, 24 January 2008, 11:18 AM

Another way to help reduce static is run a grounding strap off your frame long enough to touch the ground helping dissipate static buildup. I've found that if you take an old radial tire and cut it lenghtwise down the tread drill a couple of holes for mounting and let it hang about 3 in. on the ground works pretty good. the rubber on the tire strap will also help the steel braids from wearing to rapidly and helps keep it to the pavement. also like the other posts add graphite you can never do too much when it comes to grounding.

JAGER 139 Back on the side

User avatar
cowboyfan
6 PILL USER
6 PILL USER
Posts: 71
Joined: Sunday, 25 November 2007, 20:28 PM

Post by cowboyfan » Thursday, 24 January 2008, 16:06 PM

great info there, I really notice a huge drop off in static when I apply my brakes, hopefully I can find some lube in the next couple of days and see if it helps. Thanks.

User avatar
Bartender
4 PILL USER
4 PILL USER
Posts: 25
Joined: Sunday, 16 March 2008, 6:12 AM
Location: near Detroit MI

Post by Bartender » Wednesday, 19 March 2008, 12:18 PM

Great info, I'll be trying this on my 2007 379 Pete soon.

User avatar
elmer fudd
Duckplucker
Duckplucker
Posts: 102
Joined: Tuesday, 02 December 2008, 19:58 PM

Post by elmer fudd » Friday, 05 December 2008, 20:55 PM

Great info I have never been able to get the same answer from anyone on this subject . I'll be trying it myself, hope it does work.

User avatar
Foxhunter
Donor
Donor
Posts: 2662
Joined: Thursday, 03 April 2008, 10:24 AM
Radio: Fisher-Price
Location: South-Central New Jersey
Referrals: 1

Post by Foxhunter » Friday, 05 December 2008, 21:51 PM

I've seen the graphite fix listed in an old 1950's book on mobile CB radio. There were also little devices that connected the hubs to the wheels electrically while in motion.

Here is one other suggestion in regards to trailers.

Often the ground can be poor from the trucks 5th wheel to the truck's frame. Add a thick ground cable from the 5th wheel to the frame. Clean first (tons of grease) the points to bare metal where the ends will connect. It will now be properly grounded/bonded. As a result of doing this not only did noise levels become reduced, but the trailer lights also became brighter.

After we did this to my rig, my Father went and grounded the rest of our company's rigs this way. A simple and worthwhile improvement.

I Remember


Image



User avatar
BallWrecker
Skipshooter
Skipshooter
Posts: 317
Joined: Thursday, 12 July 2007, 22:30 PM

Re: Static problems - Fix for some big trucks!

Post by BallWrecker » Sunday, 15 February 2009, 15:45 PM

I was just getting ready to make a post about this problem. I have an international at highway speeds the static level comes up, but when you apply the brakes the level will drop from like 5db to 1db. Then I can actually hear people more then a mile away. Unless they are on a 5,8 or 12 pill.. lol..
So, u say just open up the little cap where you add gear/hub oil and add the graphite.. Ill do that first thing tomorrow morning in the pre trip :)
I hope it works because im at the point im ready to rip this stuff all out.. Works great in the 4-wheeler, but not so hot in the big truck.. Thanks for the info !!!

User avatar
Foxhunter
Donor
Donor
Posts: 2662
Joined: Thursday, 03 April 2008, 10:24 AM
Radio: Fisher-Price
Location: South-Central New Jersey
Referrals: 1

Re: Static problems - Fix for some big trucks!

Post by Foxhunter » Sunday, 15 February 2009, 21:12 PM

On that subject....

Graphite
is an electrically conductive mineral, related to carbon. Although for many years it was used as an aid to suppress noise in tires, I went back and checked and never actually read anywhere where it was used in hubs. Still may be a worthwhile experiment and that's how things are discovered.

Here are/were the two basic methods for dealing with noise from wheels & tires....


Wheels and static collector springs
A less common noise source in radios is the front wheel axle. As the wheels rotate, a static charge is built up between the axle and the wheel bearing, since they are insulated from each other by a thin film of grease.

The bouncing of the wheel causes contact between the two surfaces, and the static charge is intermittently dissipated. This might produce noise when the vehicle is driven over 20MPH. "Static Collector Springs" positioned under the axle dust cap counter this action by establishing a constant electrical path between the axle and the bearing.


Tires and anti-static powder
A static charge, similar to axle noise, once was generated by the friction generated between the inner tube and the tire. The cure was the injection of a special anti-static powder (often a compound containing Graphite) into each of the tube valves.

Maybe someone would find this helpful or interesting.

I Remember


Image



User avatar
[byuslim09]
6 PILL USER
6 PILL USER
Posts: 61
Joined: Friday, 15 May 2009, 15:47 PM
Radio: swp/srx general lee
Name: david jeanpierre
Home Phone: 9859562657

Re: Static problems - Fix for some big trucks!

Post by [byuslim09] » Wednesday, 20 May 2009, 22:06 PM

:cheers: :cheers: :cheers: Good job mopar2ya on the research and post,I pilot a 07 international and I stoppped in wal,art tonight and got 2 3gram tubes of of the powdered graphite.I was scared that I would put too much so I took 1 tube and put half in one hub and the remainder of the tube in the other hub......it seems to have done the trick because my radio is wuieter and. I am hearing people farther away without increasing rf gain knob,btw, how many ml does 3grams amount to?just wanna make sure I put enough in the hubs.thx once again for the helpful post......mr.bayou slim just got down!!
"Stand for something or fall for anything is what my uncle always told me"........but he always said it as he was picking himself up off the ground!!!!



User avatar
909 wis
6 PILL USER
6 PILL USER
Posts: 72
Joined: Saturday, 21 November 2009, 22:49 PM
Radio: rci2980/fatboy1500
Name: steve
Home Phone: 920-681-0000
Location: Wisconsin
Referrals: 1

Re: Static problems - Fix for some big trucks!

Post by 909 wis » Saturday, 28 November 2009, 6:56 AM

simple fix for trucks and wipers, if you get any sort of noise or static when your blades are running, you can get noise cancelling blankers, or they make a cover that insulates the motor for the wipers.
RCI2980
Fatboy1500
Silver Eagle D104
Imax2000
909 Wisconsin still gets down!



User avatar
outlaw0814
6 PILL USER
6 PILL USER
Posts: 80
Joined: Saturday, 23 January 2010, 15:21 PM
Radio: Galaxy 959
Name: gus
Location: Poconos, PA

Re: Static problems - Fix for some big trucks!

Post by outlaw0814 » Monday, 01 March 2010, 16:28 PM

Fox hunter you are absolutely correct about 5th wheels and grounds--- weve been doing that for years up here , especially with trailers with a dim light problem--- and as far as the strap hanging down -- this has been done for years with tankers-- only most of those have chains to disate the static
galaxy 959 mostly stock
575m6 mike
mod V 150
imax w/4ft francis



User avatar
murdoc
Skipshooter
Skipshooter
Posts: 207
Joined: Monday, 10 May 2010, 9:43 AM
Radio: Connex, RCI, Galaxy
Antenna: Mr. Coily
Name: Adam
Location: S.E. Pa.

Re: Static problems - Fix for some big trucks!

Post by murdoc » Monday, 10 May 2010, 12:33 PM

What a great idea, just ran out to ACE hardware and scored the powdered graphite, got home and raided the measuring spoons and found that 1/4 teaspoon is equal to 1.25ml... So here goes nothin'!!! I'll post my results asap... Thanks again for the great idea Mopar....

User avatar
murdoc
Skipshooter
Skipshooter
Posts: 207
Joined: Monday, 10 May 2010, 9:43 AM
Radio: Connex, RCI, Galaxy
Antenna: Mr. Coily
Name: Adam
Location: S.E. Pa.

Re: Static problems - Fix for some big trucks!

Post by murdoc » Friday, 14 May 2010, 16:42 PM

well, simply put, IT WORKED... This graphite fix is working great for me so far. Added 1.25 Ml (1/4 teaspoon) to each front hub and presto, goodbye static at highway speed.

Thanks for the great fix Mopar!!!!

Adam

User avatar
Romad816
Mud-Duck Jr.
Mud-Duck Jr.
Posts: 4
Joined: Tuesday, 23 November 2010, 17:37 PM

Re: Static problems - Fix for some big trucks!

Post by Romad816 » Tuesday, 30 November 2010, 23:36 PM

while im sure this is a non-issue i wanted to add Graphite powder, although it is an excellent dry lubricant, has been shown to be corrosive to aluminum when there is possibility of moisture being present.

User avatar
DirtyDog
Donor
Donor
Posts: 262
Joined: Wednesday, 06 December 2006, 12:18 PM
Name: Dan Mar
Location: CONROE,TX

Re: Static problems - Fix for some big trucks!

Post by DirtyDog » Wednesday, 08 December 2010, 8:47 AM

I have super receive on my radio and about 9lbs. of static noise.Would a ground strap help this on my 99 gmc p/u? I have grounds on the fender ,engine and the radiator support.I also have the radio grounded to the metal under the dash board. Thanx Dirty Dog


Post Reply Previous topicNext topic

Who is online

Users browsing this forum: Baidu [Spider] and 4 guests