need Tachometer Cable for 350B

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stew1944
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need Tachometer Cable for 350B

Post by stew1944 » Tue May 08, 2018 10:55 am

I need a Tachometer Cable (AT 18769 T) for my new, to me, 350B. Does anyone have a source? I have searched the forum and internet, but can't find anything.

Thank you,
SF
350B dozer
KX71 excavator
T300 skid steer
730 John Deere
656 International
Farmall Cub

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jsal
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Re: need Tachometer Cable for 350B

Post by jsal » Tue May 08, 2018 5:22 pm

I would try Jd parts just had to replace one on my 302 tractor same engine not really over priced or there are places that make them up also

JIM

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psprague
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Re: need Tachometer Cable for 350B

Post by psprague » Tue May 08, 2018 7:59 pm

I looked on jdparts, it says a tach cable for a 350b is AT31116.

I've been searching around for one that fits my 440. There are a whole bunch models that use the same cable.
JD 450c forestry, JD 440A cable skidder

dtoots1
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Re: need Tachometer Cable for 350B

Post by dtoots1 » Tue May 08, 2018 9:33 pm

wouldn't mind having a tach on my 440ic....did they come with or add on? is there a source out there? or were they on diesel?

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stew1944
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Re: need Tachometer Cable for 350B

Post by stew1944 » Wed May 09, 2018 5:10 am

Thanks, psprague. I was using the part number from my parts book ( at18769t ).
350B dozer
KX71 excavator
T300 skid steer
730 John Deere
656 International
Farmall Cub

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Stan Disbrow
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Re: need Tachometer Cable for 350B

Post by Stan Disbrow » Wed May 09, 2018 6:15 am

Hi,

There were tachs on the gas engines. Biggest issue is if you don't have one, you don't have the drive unit. Just a plug in the hole where it goes. I have had at least a dozen gas 2-cyl tractors over the years and only one, a 420w orchard, had a tach and drive. I have seen a lot of tachs available, but precious few drive units.

As usual, Lavoy would be your best bet. Send him an email, as PMs can be somewhat iffy.

Stan
There's No Such Thing As A Cheap Crawler!

Have: '58 JD 420c 5-roller w/62 inside manual blade
Have: '78 JD350C w/6310 outside manual blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Also Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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psprague
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Re: need Tachometer Cable for 350B

Post by psprague » Wed May 09, 2018 8:05 am

Just to clear up some possible misconception.

My 440 is a rubber-tired cable skidder modeled on a gen 1 3010, not an older crawler.
JD 450c forestry, JD 440A cable skidder

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Lavoy
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Re: need Tachometer Cable for 350B

Post by Lavoy » Wed May 09, 2018 8:09 am

Should not be an issue. Would have though that it would have come from the factory with one. Was not an option on the tractors, they just came with them, assumed the skidder would as well.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com

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stew1944
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Re: need Tachometer Cable for 350B

Post by stew1944 » Mon May 14, 2018 7:18 pm

I have gotten a new tachometer cable, but now I don't see where it connects to the motor. I assumed it would connect to the injector pump housing, but I don't see where. The original cable is missing, so I can't follow that back. Anyone?
350B dozer
KX71 excavator
T300 skid steer
730 John Deere
656 International
Farmall Cub

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jsal
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Re: need Tachometer Cable for 350B

Post by jsal » Tue May 15, 2018 2:48 am

Should hook up at rear of engine block on the right side I

believe it is driving off the camshaft
JIM

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stew1944
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Re: need Tachometer Cable for 350B

Post by stew1944 » Tue May 15, 2018 6:57 am

Thanks, now if it only stops raining up here in the northern pa, I'll get on it.
350B dozer
KX71 excavator
T300 skid steer
730 John Deere
656 International
Farmall Cub

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stew1944
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Re: need Tachometer Cable for 350B

Post by stew1944 » Tue May 15, 2018 11:09 am

I found it, but on the left side( sitting in the seat). There is a hole, but nothing else. Storms here so I didn't try to see inside, but this has me concerned. The open hole could be letting dirt into the cam area? I could reach around and poke my finger in, but only felt some kind of a blocking. Hopefully I can get the hood off and see better when the storms pass.
350B dozer
KX71 excavator
T300 skid steer
730 John Deere
656 International
Farmall Cub

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Stan Disbrow
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Re: need Tachometer Cable for 350B

Post by Stan Disbrow » Tue May 15, 2018 12:36 pm

Hi,

There ought to be a fitting (as they label it in the parts catalog) in the hole. With a gear inside the fitting which extends into the hole to mesh with the gear on the end of the camshaft. The upper part of the inside of that fitting accepts the end of the tach drive cable. And, the outer part of the cable has a nut to thread onto the end of the fitting.

Sounds like you are missing the drive fitting part.

Stan

Edit: BTW, I always referred to the fitting and gear as the Tach Drive.
There's No Such Thing As A Cheap Crawler!

Have: '58 JD 420c 5-roller w/62 inside manual blade
Have: '78 JD350C w/6310 outside manual blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Also Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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