W9 Tires

Dave Meisner · Jan 2, 2013

Hi, I have purchased a 1943 McCormick w9 that has a 15-34 tire on one side and a 16.9-34 Tire on the other. The fenders are straight, and the rims are mounted correctly, but the tires rub on the fenders. Also, how do I find out if it is a gas or distillate? Any thoughts? Thanks.

sflem849 · Jan 2, 2013

The tires are "the same" size. The 16.9-34 is just the new version of the 15-34. They are stock tires. They shouldn't rub. It is common to put 18.4-34s on and they do not rub.

To find if it is distillate or gas you could post the serial number. There will be some letters on the back that tell you things like that ie W12B means electric start and swinging drawbar If it has a hole in the hood for the starting tank or radiator shutters those are also good clues.

rustred · Jan 2, 2013

that is the correct tires for it . dont know where they would rub as i have never saw a problem with the tires. i have one on steel also that has been cut down to 32" tires. possible to post pic? some people even put the 18.4x34 on them so curious where there rubbing. are they on factory rubber or cutoff's?
code on serial # should help with distillate model.

MisterT · Jan 2, 2013

15.5s and 16.9s were in production at the same time. One did not replace the other.

Dave Meisner · Jan 2, 2013

Thank you, I will get the serial # next time I am out in the barn. Have a great new years to all!

sflem849 · Jan 2, 2013

(quoted from post at 15:13:45 01/02/13)
15.5s and 16.9s were in production at the same time. One did not replace the other.

He said they were 15-34s not 15.5-34s.

sflem849 · Jan 2, 2013

(quoted from post at 15:12:45 01/02/13) that is the correct tires for it . dont know where they would rub as i have never saw a problem with the tires. i have one on steel also that has been cut down to 32" tires. possible to post pic? some people even put the 18.4x34 on them so curious where there rubbing. are they on factory rubber or cutoff's?
code on serial # should help with distillate model.

Mine has 18.4s

rustred · Jan 2, 2013

yes, and the 15 was replaced by the 16.9 some of them older tires even have both sizes right on them saying that, "16.9-34 replaces 15-34"

The Dukester · Jan 2, 2013

15-34 is now 18.4-34......14-34 is now 16.9-34. 15.5-38 was a completly new size low profile, light carcass tire to provide greater tread width but same height (circumference) as a 13.9-38 or 12-38 but using a much wider rim.

heavyhaulertoo · Jan 2, 2013

Maybe you could tweek the fender.

Russ600 · Jan 2, 2013

Hi

I hate to start an agrument, but I think the 16.9 x 34 replaced the 14 x34 and the 18.4 x 34 replaced the 15 x 34. Check your rims to see where the off sets are. Rim might be mounted backwards or the rims came off a different tractor that had 34 in rubber. With the proper rims both size of tires will fit and have good clearance between the tires and fenders I can't say for sure but I think some of the early 9's came with 32 in rubber and I think 32 in rubber was used on some of the industrial 9's.
Cheers
Russ

sflem849 · Jan 2, 2013

(quoted from post at 17:14:10 01/02/13) 15-34 is now 18.4-34......14-34 is now 16.9-34. 15.5-38 was a completly new size low profile, light carcass tire to provide greater tread width but same height (circumference) as a 13.9-38 or 12-38 but using a much wider rim.

Sorry, you are totally right (not that you doubted it) I forgot that 15.5 was a new size.

mkirsch · Jan 3, 2013

To the best of my knowledge:

The old sizes used dashes, like 15-34.
The new sizes use an X, like 16.9x34.

On the old sizes, the tire size was the same as the rim width. So, a 15-34 would go on a 15" wide rim.

W9 Tires

Dave Meisner

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sflem849

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rustred

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MisterT

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Dave Meisner

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sflem849

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sflem849

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rustred

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The Dukester

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heavyhaulertoo

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Russ600

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sflem849

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mkirsch

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