Re-Grooved Tires

[cmxjn]

§ 569.1 Purpose and scope.

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This part sets forth the conditions under which regrooved and regroovable tires manufactured or regrooved after the effective date of the regulation may be sold, offered for sale, introduced for sale or delivered for introduction into interstate commerce.

[42 FR 21613, Apr. 28, 1977]

§ 569.3 Definitions.

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(a) Statutory definitions. All terms used in this part that are defined in section 102 of the National Traffic and Motor Vehicle Safety Act of 1966 (15 U.S.C. 1391) are used as defined in the Act.

( Motor Vehicle Safety Standard definitions. Unless otherwise indicated, all terms used in this part that are defined in the Motor Vehicle Safety Standards, part 571, of this subchapter (hereinafter “The Standards”), are used as defined therein without regard to the applicability of a standard in which a definition is contained.

© Regroovable tire means a tire, either original tread or retread, designed and constructed with sufficient tread material to permit renewal of the tread pattern or the generation of a new tread pattern in a manner which conforms to this part.

(d) Regrooved tire means a tire, either original tread or retread, on which the tread pattern has been renewed or a new tread has been produced by cutting into the tread of a worn tire to a depth equal to or deeper than the molded original groove depth.

[34 FR 1150, Jan. 24, 1969. Redesignated at 35 FR 5118, Mar. 26, 1970]

§ 569.5 Applicability.

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(a) General. Except as provided in paragraph ( of this section, this part applies to all motor vehicle regrooved or regroovable tires manufactured or regrooved after the effective date of the regulation.

( Export. This part does not apply to regrooved or regroovable tires intended solely for export and so labeled or tagged.

[34 FR 1150, Jan. 24, 1969. Redesignated at 35 FR 5118, Mar. 26, 1970]

§ 569.7 Requirements.

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(a) Regrooved tires. (1) Except as permitted by paragraph (a)(2) of this section, no person shall sell, offer for sale, or introduce or deliver for introduction into interstate commerce regrooved tires produced by removing rubber from the surface of a worn tire tread to generate a new tread pattern. Any person who regrooves tires and leases them to owners or operators of motor vehicles and any person who regrooves his own tires for use on motor vehicles is considered to be a person delivering for introduction into interstate commerce within the meaning of this part.

(2) A regrooved tire may be sold, offered for sale, or introduced for sale or delivered for introduction into interstate commerce only if it conforms to each of the following requirements:

(i) The tire being regrooved shall be a regroovable tire;

(ii) After regrooving, cord material below the grooves shall have a protective covering of tread material at least 3/32-inch thick;

(iii) After regrooving, the new grooves generated into the tread material and any residual original molded tread groove which is at or below the new regrooved depth shall have a minimum of 90 linear inches of tread edges per linear foot of the circumference;

(iv) After regrooving, the new groove width generated into the tread material shall be a minimum of 3/16-inch and a maximum of 5/16-inch;

(v) After regrooving, all new grooves cut into the tread shall provide unobstructed fluid escape passages; and

(vi) After regrooving, the tire shall not contain any of the following defects, as determined by a visual examination of the tire either mounted on the rim, or dismounted, whichever is applicable:

(A) Cracking which extends to the fabric,

( Groove cracks or wear extending to the fabric, or

© Evidence of ply, tread, or sidewall separation;

(vii) If the tire is siped by cutting the tread surface without removing rubber, the tire cord material shall not be damaged as a result of the siping process, and no sipe shall be deeper than the original or retread groove depth.

( Siped regroovable tires. No person shall sell, offer for sale, or introduce for sale or deliver for introduction into interstate commerce a regroovable tire that has been siped by cutting the tread surface without removing rubber if the tire cord material is damaged as a result of the siping process, or if the tire is siped deeper than the original or retread groove depth.

[39 FR 15039, Apr. 30, 1974, as amended at 42 FR 21613, Apr. 28, 1977]

§ 569.9 Labeling of regroovable tires.

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(a) Regroovable tires. After August 30, 1969, each tire designed and constructed for regrooving shall be labeled on both sidewalls with the word “Regroovable” molded on or into the tire in raised or recessed letters 0.025 to 0.040 inch. The word “Regroovable” shall be in letters 0.38 to 0.50 inch in height and not less than 4 inches and not more than 6 inches in length. The lettering shall be located in the sidewall of the tire between the maximum section width and the bead in an area which will not be obstructed by the rim flange.

[34 FR 1150, Jan. 24, 1969; 34 FR 1830, Feb. 7, 1969]

Courtesy -http://law.justia.com/cfr/title49/49-6.1.2.3.34.html

This the US laws on re-grooved tires. do u guys think Sri lanka has any similar rules? Those re-grooved tire standards in SL are closer to those US standards atleast??

[DevakaC]

Wow so many sub sections and paragraphs of some book of rules.

A simple answer to your question is no.

If this may help, I work in the re-tread tire manufacturing industry in the US and deal with tires on a daily basis. Mostly truck tires. Re-grooving is a very common practice in the industry. Most branded tires, like Yokohama, Kumho, Toyo's, Continentals specifically say on the tire they are re-groovable. Now the law enforcement people don't groove these tires according the rules & regulation but tire service guys do. Some are good at it some are not. The art is to re-groove to a certain depth so the groove is not too close to the steel but still give some depth to the tire. People who don't know the art like our makabasses near sugathadasa stadium groove right to the steel. Hence exposing the steel causing it to corrode and let air inside the casing. End result is a rotten tire. In this shape of an economy more and more people are looking for grooved/used tires so the demand has gone up but id still advise going for a new set or recapped set if finances permit.

[Sylvi]

Wow so many sub sections and paragraphs of some book of rules.

A simple answer to your question is no.

If this may help, I work in the re-tread tire manufacturing industry in the US and deal with tires on a daily basis. Mostly truck tires. Re-grooving is a very common practice in the industry. Most branded tires, like Yokohama, Kumho, Toyo's, Continentals specifically say on the tire they are re-groovable. Now the law enforcement people don't groove these tires according the rules & regulation but tire service guys do. Some are good at it some are not. The art is to re-groove to a certain depth so the groove is not too close to the steel but still give some depth to the tire. People who don't know the art like our makabasses near sugathadasa stadium groove right to the steel. Hence exposing the steel causing it to corrode and let air inside the casing. End result is a rotten tire. In this shape of an economy more and more people are looking for grooved/used tires so the demand has gone up but id still advise going for a new set or recapped set if finances permit.

'DevakaC,

Your post explains the gravity of regrowing as you have the USA experience. I too had got the services of these chaps some know how to do it without grooving till steel wire appears.after regrowing have to balance the wheel if not there will be uneven wastage on the Tyre this can effect your car shock absorbers wobbling at high speed driving. I did this during the 1962 to 1980 era due to non availability of tires motorists have to carry the spare part book issued by RMV and the current revenue license of the motor vehicle to buy a Tyre at that time.

Sylvi Wijesinghe.

[carboy2011]

wow that sounds like life was really tough those days Sylvi

What cars did you use at that time?

'DevakaC,

Your post explains the gravity of regrowing as you have the USA experience. I too had got the services of these chaps some know how to do it without grooving till steel wire appears.after regrowing have to balance the wheel if not there will be uneven wastage on the Tyre this can effect your car shock absorbers wobbling at high speed driving. I did this during the 1962 to 1980 era due to non availability of tires motorists have to carry the spare part book issued by RMV and the current revenue license of the motor vehicle to buy a Tyre at that time.

Sylvi Wijesinghe.

[Sylvi]

wow that sounds like life was really tough those days Sylvi

What cars did you use at that time?

'carboy2011',

I can remember from 1950 family had EY A40 Devon later 1 sri number A 50 then my late father gave me his old CN Skoda for my use which I had to repair my self and runaround then Ceylon. MG 4 Sri skoda Octavia. after 1978 all Japanese vehicles AS I was in Automobile maintenance business have had the opportunity to drive all cars vans buses including D/D lorries which was in use at that time.Never used motor cycles.Once I remember drove down a lorry with the help of one of my mechanic pouring diesel to the intake of the air inlet through a small hole drilled on a improvised can starting with kerosine once the engine starts with diesel as the CAV fuel pump gave trouble at Mankulam trip to Colombo took 18 hours because we could not speed up the engine

Sylvi Wijesinghe.

Edited September 8, 2011 by Sylvi

[Crosswind]

Once I remember drove down a lorry with the help of one of my mechanic pouring diesel to the intake of the air inlet through a small hole drilled on a improvised can starting with kerosine once the engine starts with diesel as the CAV fuel pump gave trouble at Mankulam trip to Colombo took 18 hours because we could not speed up the engine

Sylvi Wijesinghe.

So is he the king of all makabasses in this country?

[rman2000]

Sylvi

thats an interesting array of cars i think Jaffna had a lot of A40 Devons till recently when they were bought by collectors now i hear there is not many left

'carboy2011',

I can remember from 1950 family had EY A40 Devon later 1 sri number A 50 then my late father gave me his old CN Skoda for my use which I had to repair my self and runaround then Ceylon. MG 4 Sri skoda Octavia. after 1978 all Japanese vehicles AS I was in Automobile maintenance business have had the opportunity to drive all cars vans buses including D/D lorries which was in use at that time.Never used motor cycles.Once I remember drove down a lorry with the help of one of my mechanic pouring diesel to the intake of the air inlet through a small hole drilled on a improvised can starting with kerosine once the engine starts with diesel as the CAV fuel pump gave trouble at Mankulam trip to Colombo took 18 hours because we could not speed up the engine

Sylvi Wijesinghe.

[Sylvi]

So is he the king of all makabasses in this country?

'Crosswind',

Even today modern makabases pour little petrol mixed with diesel if they find difficult to start diesel engines. once I can remember stating most buses do long trips in Srilanka drivers of those for their diesel tank fill full diesel then add up with one gallon of petrol. you can give a diesel feed to the intake and start a diesel engine like the carburetor it will act.

Sylvi Wijesinghe.

[Sylvi]

Sylvi

thats an interesting array of cars i think Jaffna had a lot of A40 Devons till recently when they were bought by collectors now i hear there is not many left

'rman2000',

I was there few months back to Delft island. Yes what you say it is true there are few I saw few running some are rotten in garages as I did full round tour Jaffna for six days.

Sylvi Wijesinghe.

Edited September 9, 2011 by Sylvi

[Watchman]

'rman2000',

I was there few months back to Delft island. Yes what you say it is true there are few I saw few running some are rotten in garages as I did full round tour Jaffna for six days.

Sylvi Wijesinghe.

were you able to talk to any locals there and learn more about the automotive field on those areas? I'm sure they must have had lots of stories to tell.

But seriously, sylvi, i really think you should start a youtube video blog or a normal blog and share all these interesting stories you have.

[DevakaC]

'DevakaC,

Your post explains the gravity of regrowing as you have the USA experience. I too had got the services of these chaps some know how to do it without grooving till steel wire appears.after regrowing have to balance the wheel if not there will be uneven wastage on the Tyre this can effect your car shock absorbers wobbling at high speed driving. I did this during the 1962 to 1980 era due to non availability of tires motorists have to carry the spare part book issued by RMV and the current revenue license of the motor vehicle to buy a Tyre at that time.

Sylvi Wijesinghe.

Sylvi,

As I mentioned in my previous post most re-grooving happen in truck tires as some of them are specifically made for the purpose. Passenger car tires are not. I had my very own experience regards to this when a friend recommended a place when I needed a 31x10.5R15 used tire for the Pajero as a spare. This guy ran around the whole place (the street passing elphinston theatre, Darley Road may be?) and came up with a few that were decent. There was this Dunlop Grandtrek that specifically looked quite attractive and the said price was 4,000/= so I tell the bugger to install it in the spare and the next thing you know it blows when taking up 30PSI. It's in that quest trying to find a spare that I came across these places full of used/grooved tires. Many of us knowing little fall to the trap thinking they have good tread (katta) left and end up buying a set of tires that is grooved to the steel that are bound to explode or wear uneven.

Also the said time frame mentioned by you sounds like Sirimavo's time right? Where suit material were issued only when you were getting married, and one loaf of bread per family etc etc with her concept of a closed economy with a purpose to self sustain as a nation? Is it during that period the Upali Fiat was manufactured because im sure importing a car was only a dream.

[carboy2011]

Hi Sylvi

I was there in Jaffna a few weeks ago too i didnt see many classics saw Morris Oxfords,Austin Cambridges,A30/35/50 few VW Beetles etc rest are all newer cars,what old cars did you see there? btw how is Delft is it a touristy place?

Did you talk to any motorists there? i think during the war time they were using kerosene as a fuel to run cars there,apparently start with petrol and switch to kerosene

'rman2000',

I was there few months back to Delft island. Yes what you say it is true there are few I saw few running some are rotten in garages as I did full round tour Jaffna for six days.

Sylvi Wijesinghe.

[carboy2011]

I have heard many stories about Sirimavs time where you could not invite more than a certain no of guests for a wedding,bread and milk queues,cant sell rice and curry on certain days,work on sundays and saturdays

Upali Fiats,Upali Mazdas were assemsbled during that time as ws Unic radios

Sylvi,

As I mentioned in my previous post most re-grooving happen in truck tires as some of them are specifically made for the purpose. Passenger car tires are not. I had my very own experience regards to this when a friend recommended a place when I needed a 31x10.5R15 used tire for the Pajero as a spare. This guy ran around the whole place (the street passing elphinston theatre, Darley Road may be?) and came up with a few that were decent. There was this Dunlop Grandtrek that specifically looked quite attractive and the said price was 4,000/= so I tell the bugger to install it in the spare and the next thing you know it blows when taking up 30PSI. It's in that quest trying to find a spare that I came across these places full of used/grooved tires. Many of us knowing little fall to the trap thinking they have good tread (katta) left and end up buying a set of tires that is grooved to the steel that are bound to explode or wear uneven.

Also the said time frame mentioned by you sounds like Sirimavo's time right? Where suit material were issued only when you were getting married, and one loaf of bread per family etc etc with her concept of a closed economy with a purpose to self sustain as a nation? Is it during that period the Upali Fiat was manufactured because im sure importing a car was only a dream.

[Sylvi]

Hi Sylvi

I was there in Jaffna a few weeks ago too i didnt see many classics saw Morris Oxfords,Austin Cambridges,A30/35/50 few VW Beetles etc rest are all newer cars,what old cars did you see there? btw how is Delft is it a touristy place?

Did you talk to any motorists there? i think during the war time they were using kerosene as a fuel to run cars there,apparently start with petrol and switch to kerosene

'carboy2011',

You have to tour around Jaffna then you will see some Devons yes as your post other cars you have mentioned plenty of old cars still running.

Yes they used to run with kero by starting with potrol then have a another valve to supply kero which is fed to the carburetor the feed tube runs round number of times around the silencer close to the manifold to keep kero hot. As I went there during we had access to jaffna during the little time we had A9 opened few years ago.

I was in and out Jaffna till the war broke to maintain some big generators in farms.

Sylvi Wijesinghe.

[Sylvi]

Sylvi,

Also the said time frame mentioned by you sounds like Sirimavo's time right? Where suit material were issued only when you were getting married, and one loaf of bread per family etc etc with her concept of a closed economy with a purpose to self sustain as a nation? Is it during that period the Upali Fiat was manufactured because im sure importing a car was only a dream.

'DevakaC',

Yes during that Time I got married as another members post I was given letter to go to salu sala and buy my and brides clothing. All imports came on permits import control department made Palm oil income issuing permits for non existing traditional importers some Customs officers too was involved. Most imports came on Convertible Rupee Account money.

Upali made Mazda first then Fiat I saw one running few days back in Ranala.Unit#d Mot#rs assembled Skoda first later Japanese Colt. One other company assembled small Lambretta Motor cycles two types they were called Madruwa. They had small three wheelers delivery type with self starter and Dynamo combined unit installed That era Srilankans were like frogs inside a well. We had to get air tickets paid in some other country to fly out of the country and police clearance.I got only few US$ to carry with me when I get out of the country. If it is any official trip after coming back to the country you have to give all expenses proof to import control department.We must thank late President JRJ for establishing the open economic freedom.

Our Mechanics improvised things for hard to get spares, Gear wheels were rebuild Most of rubber bushes was made for automobiles in our country.Brake linings were made in our country ferodo established a factory.

Dynamo Armature commutators was rebuild and they were rewound to same specifications.For big generators which had AVR Electronic regulator cards were changed specialty modified Dynamos from leyland and Guy double-Decker buses to excite them and generate AC power.

Sylvi Wijesinghe.

Edited September 10, 2011 by Sylvi

[rman2000]

Well Im glad that I was not born in that stupid era it must have been like hell to live those days!

'DevakaC',

Yes during that Time I got married as another members post I was given letter to go to salu sala and buy my and brides clothing. All imports came on permits import control department made Palm oil income issuing permits for non existing traditional importers some Customs officers too was involved. Most imports came on Convertible Rupee Account money.

Upali made Mazda first then Fiat I saw one running few days back in Ranala.Unit#d Mot#rs assembled Skoda first later Japanese Colt. One other company assembled small Lambretta Motor cycles two types they were called Madruwa. They had small three wheelers delivery type with self starter and Dynamo combined unit installed That era Srilankans were like frogs inside a well. We had to get air tickets paid in some other country to fly out of the country and police clearance.I got only few US$ to carry with me when I get out of the country. If it is any official trip after coming back to the country you have to give all expenses proof to import control department.We must thank late President JRJ for establishing the open economic freedom.

Our Mechanics improvised things for hard to get spares, Gear wheels were rebuild Most of rubber bushes was made for automobiles in our country.Brake linings were made in our country ferodo established a factory.

Dynamo Armature commutators was rebuild and they were rewound to same specifications.For big generators which had AVR Electronic regulator cards were changed specialty modified Dynamos from leyland and Guy double-Decker buses to excite them and generate AC power.

Sylvi Wijesinghe.