[Richard-tx]

I had to buy a new throttle cable from Gravely for my recent engine upgrade. I am impressed and I have not installed it yet.

What I did was to buy a throttle cable that was used on the latest 4 wheel tractors. This is the "L" handle throttle. I will install it later today. I forgot the order the grip for the end so I will have to get one of those.

The things I like about it is that it is much smoother, the cable is vinyl coated, and the full throttle position has a detent. That means that the amount of friction needed to maintain full throttle is reduced and that the amount of resistance to apply full throttle is reduced as well.

The part number I have for the 6 ft cable (should you need it) is 069260.
The part number for the latest model 16G cable is 069392
The grip is 075215

Maybe Don has some field reports.

Here are a few pictures.

 

[ATLANTIC CENTRAL]

That's what is on my tractor - I guess we now know why I never had all those throttle cable issues we have discussed on here before.

This version works fine and has plenty of travel. I keep telling you Richard, these G tractors just got better and better as they went along.

Sheldon

 

[Richard-tx]

these G tractors just got better and better as they went along.

Those improvements were not just limited to the 4 wheel tractors. The two wheel tractors also were improved as well. The Pro series is so far advanced from the original L that I consider it a entirely different machine.

One can really see the overall effect these improvements made in the 4 wheeler over the years by simply running a 816 with the sector steering and then get on a G. The difference is significant starting with a sprung seat.

As I recall the throttle issues were due to the length of the dash panel slot. Gravely really wanted to keep the RPMs down.

 

[Jimmy in NC]

Those improvements were not just limited to the 4 wheel tractors. The two wheel tractors also were improved as well. The Pro series is so far advanced from the original L that I consider it a entirely different machine.

One can really see the overall effect these improvements made in the 4 wheeler over the years by simply running a 816 with the sector steering and then get on a G. The difference is significant starting with a sprung seat.

As I recall the throttle issues were due to the length of the dash panel slot. Gravely really wanted to keep the RPMs down.

Richard-

You keep talking about the slot not allowing full RPM's but on my 8000 with the Onan, I don't use the first 20-25% of the throttle slot. If I adjust the throttle to where it pulls the governor at the first movement, I quickly exceed 3300 or 3600 rpm before I run out of travel. My guess is that some motors needed more cable travel than others and it was something that was overlooked.

 

[Richard-tx]

G series tractors are the only ones that had the short slot. The dealers knew this. My 16G->24GLX and 24G both had short slots. The 24G still does. I drilled another hole in the arm to attain 3300rpm

My 818T and 8163T have too much slot opening too. The mechanical limits on the B48 and CCKA engine are such that 3300-3600 is the max no matter what. Those limits were set by the factory and I have not touched them.

If it were my tractor, I would set the mechanical limits so that 3300 would be the maximum no matter what the cable travel was.

Onan throttle limit adjustment. CCKA. B43. B48, P224

 

[ATLANTIC CENTRAL]

But yet latter G series tractors like mine, which use the newer one piece throttle cable assembly like you bought for the 24GLX, have a larger slot than those early G's and have plenty of throttle travel.

My throttle has always allowed wide open throttle at whatever governor setting is selected - now 3600 rpm, actual measured rpm 3550.

Why they made the early G dashes with the smaller slot - who knows - but they fixed it later.

Sheldon

 

[Richard-tx]

Sheldon is right. The very last of the G series had a longer slot. The newer ones starting with model 987058 had the different throttle lever and from what I can gather, a different dash as well.

It seems logical that the reason for this limit would be related to the warranty and engine life.

One fact regarding engine life is that the slower an engine spins, the longer it will last.

Market conditions had changed so Gravely was forced to lengthen the warranty period. The warranty on the 8000 series was 1 year. The G series was 5 years.

So in an effort to keep from losing their shirt, Gravely dropped the engine RPM and made sure that the engine RPMs would never exceed 3000 rpm or so. At least it could not attain a proper idle speed and rev past 3000 RPM.

Gravely could have put a 10 year warranty on the transmission (excluding normal wear items like clutches) and been safe.