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Elite Veteran
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Location: Torino - Italy | hello Guys ! i'm Raf from Italy i have big problem vibration at 40-50 mph in my 59 300E , i have kelsey wire wheels and cooker tires 235-75-15 , to make the balance we had put so much weight ... i don't understand if the problem is tires or wheels |
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Board Moderator & Exner Expert 10K+
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Location: Southern Sweden - Sturkö island | My guess is the tires Raf - I've heard so much about them Cooker Tires here before. |
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Elite Veteran
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Location: Torino - Italy | ..actually the tires do not run round .... but are new , have 500 miles , more of this tires do not round |
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Expert
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Location: Yorba Linda, Ca | I had the same problem with my 59 Dodge Vert, and at about the same speed. A friend of mine who also has a 59 Dodge Vert but with wire wheels---mine has the original wheels and spnner hubcaps, He suggested I use the big Coker tires on mine like He had. The car rode like a baby buggie with the old tires the seller had put on it---they were cheap tires and not all 4 were the same manufacturer, but the car rode nice and smooth at ALL speeds. Then I put those large Cokers on it. It went "bouncy -bouncy down the highway, particularly at 40 mph. The tire shop tried over and over again to balance them without any success. Their balance machine said the tires were too big for the rims I had. I put up with it for a year but then a young woman made a left turn right in front of me, causing me to have to crash into a curb to miss her. This Totaled two of my tires and the wheel and at least one hubcap. She ended up buying me 2 new tires and wheels. I figured, "Now is a good time to get rid of those bouncy tires" so I bought 4 brand new Coker tires (smaller size) P-215/75R (The old ones were P-235/75R). The car rides much better now and did not take as many weights to balance the tires as the old larger ones.
It still is not as smooth as it was with those old cheep tires.
Coker was no help with the tires that were too large, even thou they were almost brand new, they would not issue any credit towards replacing them with smaller tires, and as I mentioned, the car still doesn't ride as smoothly as it did with the old cheap tires.
For these reasons, when it comes time to replace the tires, I will not buy Cokers again. I believe either Goodrich, or Goodyear makes wide white side wall tires and I will buy these next time.
I hope you are better able to solve your problem with Coker tires than I was, but I would recommend to anybody, "STAY AWAY FROM COKER"----- if a tire needs a lotta weight to balance it, then at least to me, it is not a quality tire!!!!
Gary  |
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Elite Veteran
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Location: Torino - Italy | I think it's the same problem, my tires 235-75-15 and have to be a lot of weight to balance !! ... then advise me to change tires or put not-radial tires? I do not want to put smaller sizes |
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Elite Veteran
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Location: Torino - Italy | Strange ..... i have the same tires in 1960 Plymouth ,Coker radial 235-75-14 with factory wheel , and runs very very good , no vibration from 0 to 120 mph |
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Expert
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Location: Yorba Linda, Ca | My old tires were Radial tires, and it rode fine. Most of Aivar's cars have radial tires and they ride fine. He has a 58 New Yorker Convertible , 59 Dodge CRL Hardtop and the 58 Regal Lancer, and He had a 2nd 58 New Yorker Convertible that He sold to a friend of mine, who has since sold it (An "Ivory" ((white)) one) and it also rode great on radials. I think you just got a bad set of Coker tires as I did.
Gary |
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Elite Veteran
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Location: Torino - Italy |  [/IMG] |
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Location: Under the X in Texas | Raffaplymouth, that is an AMAZING amount of weight!!! What is the total ounces? Do you keep a notebook with a count of weights on each wheel so you know when they come off? No respectable tire shop should EVER balance like that because of the probability of losing weights.
HOW MANY HORROR STORIES ABOUT COKER TIRES ALREADY HAVE BEEN AND HOW MANY MORE WILL BE WRITTEN BEFORE HOBBYISTS QUIT BUYING FROM COKER??? Will someone please tell me what your fascination is with Coker that you do not buy from Diamondback or Lester or Goodyear or any of several other brands who also sell bias and radial wide whitewalls. Honest, I just don't get it at all. I hear these problems OVER AND OVER. If it isn't balance problems, it is yellowing, if it isn't yellowing it is warranty problems, if it isn't warranty problems, it is dissatisfaction with Coker staff on the phone. Meanwhile, tire buyers spend hours and hours fretting over imbalance problems, risk their and their family's lives with construction problems and sit writing to forums complaining. Why? Why do hobbyists keep buying from Coker? |
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Expert
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Location: Netherlands | It's advertising Wayne. The brand 'Coker' is more known than the other brands so folks automaticly buy their stuff.
Personally I luckily had read enough bad stuff about Coker's tires not to want to find out for myself about it, specially not being 3000miles away.
Here's a link to the Coker-wobble-tire topic on the HAMB-forum; -> LINK
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Expert
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Location: Yorba Linda, Ca | My purchase of Coker Tires were "Not automatic" but that's what my friends "In the Know" recommended.
I'm sure some of the rest of you may have had similar experiences.
I sure learned the hard way, and as I mentioned, Coker not the least bit interested in helping, I think the only way they would take back a tire under warrranty is if the thing was a "Complete Square".
Hopefully our FL site, and others will convince Coker that they "Aren't the only game in town" when it comes to Classic cars and they will clean up their act.
I really dont care if they do or don't (except for the next poor succer that might come along), I would not put them on a car of mine again , even if they were FREE.
They really otta be ashamed----my Dodge with Junque, no name tires, and as I said, not even all 4 were the same manufactures, still rode much better than it does now, even with the smaller Coker Tires.
Gary
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Elite Veteran
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Location: Torino - Italy | Hello Guys !!! Bad news ... , problem is not in Coker Tires.... i hope problem is in wire wheels...I tried with 225 tires..same problem., I have buy in Usa the tires American Classic Tires 235-75-15 , nothing to do ..... nothing changes ... the only positive thing is that these tires needs little weight ... but there continues to be the vibration at 40-70 miles  [/IMG]
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Expert
Posts: 4589
Location: Northern New Jersey | My Last two Radial tire purchases for my FL cars were from Diamond Back Classic Tires. They take a good quality tire, and add the whitewall to your specification. I've had no trouble at all with tires or white sidewall.
Does anyone know what the provenance of Cokers are?
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Expert
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Location: Netherlands | Raf, then it must be your car that's faulty I think!
You know what... I'm a friendly guy, and to help you solve the problem, I'll trade you my '65 300 convertible for your '59 300E so you won't have that problem anymore... 
but seriously, you could easily check what is at fault here buy just putting either the wire wheels or the Coker onto another car, just for testing.
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Elite Veteran
Posts: 734
Location: Torino - Italy | good exchange !!!! A few months ago when I did the test, I put wheels and tires of my 58 Christine, the car goes like the wind ... no vibration at all speeds .... guys all talk of tires, but no one speaks of wire wheels problem , I am convinced that the problem is in wire wheels ... wire wheels kelsey Heys I paid $ 1600 but not very perfect round ....... |
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Elite Veteran
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Location: Torino - Italy | Guys , American Classic is a Good Tires or not ??? i don't success to find Diamond tires .... |
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Expert
Posts: 3575
Location: Netherlands | http://www.dbtires.com
I have had a used set of Cragar 'Tru-Ray' wirewheels on my '65 300, and although they didn't have large vibrations, you could still feel these wheels weren't perfect.
Besides that they were also very heavy, which you can feel inside the car very good when driving.
I think you will have to find a craftsman who can straighten your wirewheels. Perhaps it's only 1 that is not straight.
I know when I put a set of aluminium 80's wheels of a Dodge Mirada on my convertible the car drove entirely different. Much better and more stable driving-properties. |
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Extreme Veteran
Posts: 444
Location: Sweden Vansbro | Why didn`t I read this tread before.
coker classic H 14 8,50*14
Now I have 2 wheels here and it is not possible to balance them. They are not round, and I use the orginal rims.
Interesting to see how the seller reacts now, the tires are worthless, that`s for sure.
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Expert
Posts: 2679
| BigBlockMopar - 2010-04-05 6:20 AM
http://www.dbtires.com
I have had a used set of Cragar 'Tru-Ray' wirewheels on my '65 300, and although they didn't have large vibrations, you could still feel these wheels weren't perfect.
Besides that they were also very heavy, which you can feel inside the car very good when driving.
I think you will have to find a craftsman who can straighten your wirewheels. Perhaps it's only 1 that is not straight.
I know when I put a set of aluminium 80's wheels of a Dodge Mirada on my convertible the car drove entirely different. Much better and more stable driving-properties.
Yep I would go with Diamondback. They are the best tires going. They are BF Goodrich tires. I run BF Goodrich on my car and they balance easy and run nice at all speeds.... they have white wals, wide whites... any type. |
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Location: Parts Unknown | I have run the Coker 7.60 x 15 BFG Silvertowns for 30 years without any problem.
I refuse to run radials because they look like sh!t, but I too have heard nothing good
about the Coker radials. |
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Expert
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Location: Springville, CA | Doc, do you mean you have run the SAME (physically same) tires for 30 years or have bought the same Coker tires for 30 years?
Loyd |
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Extreme Veteran
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Location: Sweden Vansbro | Doc, It is bias-ply tires, definitely looks better with them.
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Expert 5K+
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Location: Victoria, BC, on Vancouver Island, Canada | I have a set of the reproduction, made us USA Wire Wheels from Motorspot, with Diamondback P235-75R15 mounted on them. No problems whatever, and it was after reading all the negative publicity on Coker that I made sure I didn't want to go near them. As far as Coker goes, I am sure they make all those other brands with wide whitewalls like American Classic, Goodrich, Firestone, etc UNDER LICENCE using the OLD Worn out molds they have bought, and then sent to China to get the tires made. That is where the problem lies. Just because you have a "Brand Name" Tire doesn't mean it was made by the original company. Those companies like Goodrich should be ashamed of what is being produced in their name, by Coker. My friend Ron who owns my former 1960 Polara has a set of 235-74R14 Cokers on it and has had no problems, but another local friend, Paul, has a 58 Fireflite with 14" Cokers that are absolutely horrible. STAY Away!! The problem lies in when you try to get a decent set of fourteen inch tires. Coker and their licensed tires seem to be the only ones who make a good sized 14 inch tire, because they are made from OLD MOLDS. Diamondback buys current manufactured tires and applies the whitewalls directly to them Since there is no current manufacturer making large diameter 14 inch tires, ( other then COKER and its licensed names) those who want a large diameter 14 inch tire are out of luck. That is one reason I decided to go for the 15 inch wire wheels, because I could get a decent set of large diameter tires from Diamondback on them to fill the wheel wells up. Could not get any in fourteens for my original steel rims except COOKER and their licensed junk.
Here's a direct quote from Diamondback's Web Site:
"THE NAME GAME: THINGS ARE NOT ALWAYS AS THEY APPEAR
Did you ever buy tires for your classic car from a specialty tire company, with a "Big Brand Name" on the sidewall? I'm sure you felt good about that. After all, you thought you bought the best. Or wait a minute...did you? Like most folks, you assumed you bought a tire made by the tire company whose name is on the sidewall. Well, if it was a whitewall, redline, or similar specialty sidewall tire with a big manufacturer's name on it, it’s unlikely that they made it! Here's what I’m talking about:
The big-name U.S. tire manufacturers are always taking old molds out of service for various reasons. When they are no longer useful to those big-name companies, they are often sold. These molds are then replaced with new ones that operate better and make a better tire. So who buys those old molds? Classic tire companies, among others. The molds are then placed in small factories, many of which are in foreign countries. Now they’re made privately, but with that big brand name still on the side. It’s all legal. But the tires are not made by who you think.
I’ll just say this: Radial tires have to be precisely built, and the molds must operate perfectly, so I don't think it's a good idea to re-use molds that are outdated. The truth is, the major manufacturers won't use outdated equipment.
So the original radial tire molds are taken out of production, and they are sold. They are then used by a small manufacturer to make tires with the big company's name still on them, which they do under license. So just don't assume the name on the sidewall tells you who made the tire. It doesn’t. Always ask."
Edited by imopar380 2011-04-03 5:37 PM
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Extreme Veteran
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Location: Sweden Vansbro | Ian, it sounds dangerous, dare I drive over 40 mph now?
I called the vendor complained about the two tires, and the seller would send two new tires, no problem at all, thank you.
Now there is a 50% chance that both tires are correct, I hope,,,
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Expert 5K+
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Location: Perth Australia | I bet its an optical illusion, but in the pic of the back of the wheel, the inner hub looks closer to the rim on the
bottom of the pic than the top (Off centre) and it would be about right for where the weights are as well?
Mick |
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Elite Veteran
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. . . The molds are then placed in small factories, many of which are in foreign countries . . .
I am pretty sure by Federal law, all tires must be marked with the country of origin, on the outside of the casing.
Has anyone checked their Coker "B.F Goodrich" or other allegedly American tires for such a mark?
Diamond Back is like the "pot calling the kettle black" on this, since one of their more highly praised tires (on this forum!) is/was a Taiwan-made commercial rated tire, and another is/was a Russian/Dutch version of the same. You had to do some Googling to find this out, since it was not mentioned on their site.
Sparky
Edited by sparky7 2011-04-04 2:27 PM
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Expert 5K+
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Location: Victoria, BC, on Vancouver Island, Canada | sparky7 - 2011-04-04 11:14 AM
. . . The molds are then placed in small factories, many of which are in foreign countries . . .
I am pretty sure by Federal law, all tires must be marked with the country of origin, on the outside of the casing.
Has anyone checked their Coker "B.F Goodrich" or other allegedly American tires for such a mark?
Diamond Back is like the "pot calling the kettle black" on this, since one of their more highly praised tires (on this forum! ) is/was a Taiwan-made commercial rated tire, and another is/was a Russian/Dutch version of the same. You had to do some Googling to find this out, since it was not mentioned on their site.
Sparky
Diamondback may use imported tires, but apparently those manufactureres aren't using old outdated, and worn out molds like Coker. I've ran Hankook (Korean imports) tires on some of my work vans for years - excellent tires.
Ian |
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Elite Veteran
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those manufacturers aren't using old outdated, and worn out molds like Coker
Diamond Back doesn't claim Coker's molds are bad. Re-read the statement, carefully, because their lawyer spent a lot of time on it!
They claim that original molds are "outdated" and that newer molds make better tires than the ones they replace. Well, duh . . . in other words, replica tires are an older discontinued product which is exactly what a lot of enthusiasts want. The notion that the big tire makers knowingly release a "worn out" mold, resulting in uniformly bad tires, and then allow their name to be put on it, does not make a lot of sense.
Case in point, is the tire we are talking about in this thread, the one that consistently gets bad reviews: the Coker 235/75-14. No legacy U.S. tire maker is willing to lend its name to it, and I have never seen a 60's/70's tire casing that matches it. I think it's a recently designed tire, and a lousy one. It's these "house brand" radials that seem to cause trouble; Coker's "B.F. Goodrich" bias ply legacy tires get pretty good reviews. Otherwise, the Coker catalog is starting to look a lot more like the Diamond Back catalog, with a lot of big tire brands and contemporary tire technology.
Sparky
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Location: Eastern Iowa | I think I would have the "runout on those wires checked first of all.
I'll bet a lot of your problem is right there in the wheels.
Dave S. |
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Expert 5K+
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Location: Victoria, BC, on Vancouver Island, Canada | sparky7 - 2011-04-04 4:26 PM
those manufacturers aren't using old outdated, and worn out molds like Coker
Diamond Back doesn't claim Coker's molds are bad. Re-read the statement, carefully, because their lawyer spent a lot of time on it!
They claim that original molds are "outdated" and that newer molds make better tires than the ones they replace. Well, duh . . . in other words, replica tires are an older discontinued product which is exactly what a lot of enthusiasts want. The notion that the big tire makers knowingly release a "worn out" mold, resulting in uniformly bad tires, and then allow their name to be put on it, does not make a lot of sense.
Case in point, is the tire we are talking about in this thread, the one that consistently gets bad reviews: the Coker 235/75-14. No legacy U.S. tire maker is willing to lend its name to it, and I have never seen a 60's/70's tire casing that matches it. I think it's a recently designed tire, and a lousy one. It's these "house brand" radials that seem to cause trouble; Coker's "B.F. Goodrich" bias ply legacy tires get pretty good reviews. Otherwise, the Coker catalog is starting to look a lot more like the Diamond Back catalog, with a lot of big tire brands and contemporary tire technology.
Sparky
Am I missing something then ? It still reads that way to me...... " So who buys those old molds? Classic tire companies, among others. The molds are then placed in small factories, many of which are in foreign countries. Now they’re made privately, but with that big brand name still on the side. It’s all legal. But the tires are not made by who you think. "
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Location: ZH, Switzerland | raffaplymouth - 2010-04-03 4:50 PM
Hello Guys !!! Bad news ... , problem is not in Coker Tires.... i hope problem is in wire wheels...I tried with 225 tires..same problem., I have buy in Usa the tires American Classic Tires 235-75-15 , nothing to do ..... nothing changes ... the only positive thing is that these tires needs little weight ... but there continues to be the vibration at 40-70 miles
The tires of my 56 Chrysli are the same brand and size. But mounted onto stock steel wheels. I do not notice any abnormality during driving. The only thing is: the sound of the tire is SUV like (ratha loud).
Raffaele, did you check the rims prior to mount the tires? lateral runout? radial runout? I guess there must be something. If so is it possible to adjust the rims (like a professional can do with bycicle wire wheels/rims)?
Good luck and happy motoring!
Dieter |
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Vibration with Wire Wheels in 59 Chry
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