5000 gas ring gear/starter questions.

Ultradog MN · Mar 9, 2015

I know the difference between gas and diesel ring gears and starters on the 2/3/4000 tractors.
ie, fine vs course tooth count.
I'm less familiar with the 5000s.
Did a 5000 gas use the course RG and a course bendix on the starter? Is a gas 5000 starter the same size as a 2/3/4000 gas starter?
If they are the same size starter can you find the course bendix easily?
Wondering out loud here.

Sean in PA · Mar 9, 2015

According to the parts site the 5000 starters were all over the board, depending on the date of the tractor and whether it was US or European made, and even which trans it had. These are the 3 starter listings that specifically mention 5000 GAS models:

(11F01) - STARTING MOTOR & RELATED PARTS, 4 1/2" DIA. 2000, 3000, 4000 GAS, 5000 GAS (66/5-71) W/8 SPEED TRANS

(11F02) - STARTING MOTOR & RELATED PARTS, 4-1/2" DIA., DIESEL (NH-E) (65/7-68) 5000 GAS (4-66/5-71)

(11F03[01]) - STARTING MOTOR, DRIVE & RELAY ASSY., 5" DIA. - 2000, 3000 DIESEL (65/12-72) 5000 GASOLINE (6-71/11-72)

The gas 5000 ring gear changed once, on 6/1/71 to a 128 tooth ring gear, but it doesn't list the number of teeth in the earlier ring gear:

C5NE6384B Gear, Ring, 5000, Years: 01-JAN-66-31-MAY-71

83949153 Gear, Ring, 128 Teeth, 5000, Start Year: 01-JUN-71

RickB · Mar 9, 2015

There's 2 ring gears for post-64 Fords. 128 tooth for all Diesels and 4 cylinder gas tractors after 6/1971. This diesel ring gear (and late gas) requires the commonly available 5" Lucas starter. IIRC the 3 cylinder (and 5000 prior to 6/71) gas ring gear tooth count is 162. This ring gear requires the common D7NN11001A starter with the remote mounted solenoid/relay. Either combination can be used on any 4 cylinder gas Ford built 1965 and up. The 5" starter and coarse ring gear will live longer cranking a 4 cylinder, but won't fit between the flywheel and carb of a 3 cylinder.

Ultradog MN · Mar 9, 2015

Sean, Rick,
Thanks.
Please allow me be to be dense here.
Was the 4 cyl gas starter Always bigger than a 3 cyl gas starter? Or were the early ones small like a 3 cyl?
If they were always bigger, could a guy change the bendix on a 3 cyl starter to course tooth?
Here is a bit of my thinking:
<font size="3" color="red">If</font> I put that gas school tractor into this 4200 but put the diesel ring gear in it first, maybe I could find a starter or bendix to fit and run that way for a while.
It would then be pretty easy to do an inframe conversion to diesel someday and not have to pull all the platform stuff off again to split it for a ring gear.
I would still have to split the bolster off to change the timing gear but that would be easier.
Of course that's <font size="3" color="red">If</font> I did all this rigamarole.

RickB · Mar 10, 2015

Early 4 cylinder gas starters and all 3 cylinder gas starters are identical, or at least in today's world are identical. Best way to figure out if what you want to do is feasible is to see if a drive from a 5" diesel starter wil fit a 3 cylinder gas starter.

Ultradog MN · Mar 10, 2015

Thanks.
They list about 4 different drives.
This might not be a cake walk to find one that fits.

5000 gas ring gear/starter questions.

Ultradog MN

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Sean in PA

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RickB

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Ultradog MN

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RickB

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Ultradog MN

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