Proof meter

Tom Bond · Feb 13, 2020

I put the new proof meter on my Jubilee and it seems to be reading awful high compared to what my 961 used to run. It is the correct one for a 4 speed but just seems to be reading high. I was just out moving some snow around and it showed 2100 rpm at about 1/2 throttle tops. Motor was not running hard at all. Is there any way to tell what the the true rpm are besides hooking up another tach to compare? Or does that seem about normal? Temps perfect, engine running smooth as could be and oil pressure about 50-55# at 1/2 throttle. It shows idle at about 1000-1100. Thanks!

Fordfarmer · Feb 13, 2020

Most, if not all, of the new proof
meters for pre-'65 models are from the
land of almost right... and it shows.
Idle should be closer to 500-600 rpm, and
wide open would be around 2300, IIRC.
The first time I replaced the proof meter
in my Jubilee, it worked ok for about 10
hours, the the needle started spinning
360?, and wherever it was pointing when
you shut the tractor down was where it
pointed until you started it again.

Dean · Feb 13, 2020

Bingo.

Just almost right.

Dean

RoadsideGeo · Feb 13, 2020

Yup. About the same here. Tach seems OK, but after 6 months it still reads 0.0 hrs. They musta sent the deluxe model that increases engine life...lol

Tim PloughNman Daley RIP · Feb 14, 2020

Do you have the correct Proofmeter for the 4-SPD? There was also a 'metric' unit and cable too -it read in Kilometers Per Mile and will muck readings.

Tim Daley(MI)

Sean in PA · Feb 14, 2020

There was also a 'metric' unit and cable too -it read in Kilometers Per Mile and will muck readings.

There's always 1.60934 Kilometers per every mile. Why would you need a gauge for that?

Ultradog MN · Feb 14, 2020

Would the hours read in metric too?😎

Tim PloughNman Daley RIP · Feb 15, 2020

Why does you car and truck have BOTH a Miles Per Hour and Kilometers Per Hour scale on your speedometer? In 1976, the worse US President ever (until Owebumma) deemed that the US nation and the auto manufacturing industry needed to convert all their vehicles to METRIC in order to be competitive with the Japanese. Everything, almost everything, began to get changed over to metric. BUT you still needed a 1/2" wrench as well as a 12mm wrench to work on your car as not all got changed.

Tim Daley(MI)

Sean in PA · Feb 15, 2020

(quoted from post at 11:37:18 02/15/20) Why does you car and truck have BOTH a Miles Per Hour and Kilometers Per Hour scale on your speedometer? In 1976, the worse US President ever (until Owebumma) deemed that the US nation and the auto manufacturing industry needed to convert all their vehicles to METRIC in order to be competitive with the Japanese. Everything, almost everything, began to get changed over to metric. BUT you still needed a 1/2" wrench as well as a 12mm wrench to work on your car as not all got changed.

Tim Daley(MI)

Tim, I was making a comment on your previous post that said "kilometers per mile", which isn't something you have on a gauge. You can have kilometers per hour or miles per hour, but not kilometers per mile.

Fordfarmer · Feb 15, 2020

That's a speedometer...the o.p. was talking about a proofmeter/tachometer. Rpm is engine speed, not ground speed, and rpms are rpms, doesn't matter if you use metric or English.

Proof meter

Tom Bond

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Fordfarmer

Well-known Member

Dean

Well-known Member

RoadsideGeo

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Tim PloughNman Daley RIP

Well-known Member

Sean in PA

Well-known Member

Ultradog MN

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Tim PloughNman Daley RIP

Well-known Member

Sean in PA

Well-known Member

Fordfarmer

Well-known Member

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