Gleaner G Questions?

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IMO a G is a great combine for its day. When steel prices hit $300 plus around my area all the old iron like that went to China as shredded steel. That said, one day I want a nice G just for fun. It was the flag ship of the silver fleet.

i have 2 of them, not used anymore, one had the 350 engine and the other a 6 cyl engine. both were awesum combines, and alot of parts will interchange from other combines. but as said above, look for the "F" series, lots more of them out there for parts. 

Yes I love my G but parts are hard to find.

A Gleaner "G" is an orphan model. Nothing on it ever evolved into a newer model. Many of its parts are unique to a G. The model F-2 by 1978 replaced it for capacity. The L and M series had nothing to share with the G in design or parts.

The question would be are the heads available for what you want? rigid for wheat or oats? flex for beans? are you wide or 30 in row corn? 

Yes Flagship

Lonn wrote: Yes Flagship

Thinking on it Gleaner may have called the G The Giant of the Harvest and the F, for it's position of being in the class size most popular at the time carrying the designation as the Flagship.

I have a Gleaner G without a motor, lots of good chains and sprockets, as well as other good parts, let me know if you need parts. 612.280.3397

The G's Achilles heel was the variable speed ground drive on gear drive models. hollow ram pushed outward on the pulley to change sheave geometry to vary speed. Unfortunately, this is always trying to loosen the nut, and then the pulley wallered around on the tapered splines, ruining the mainshaft. Hydro equipped units eliminated this issue. this is why its a big deal to get a hydro. Gear drive isnt un-usable, just use loctite on the nut and torque it well, keep sheave lubed so it operates smooth and easy. Inspect often.

68 was the only year with a non-adjustable cleaning fan speed, has adjustable shutters to control air. 68-69 had a cab with a fiberglass rear, similar to the C2/ A2 cab. 70 was a 1 year only all steel, can ID by the rear HVAC intake duct and the metal frame side window.

Huge serial number break on numerous items in 71. 71 and 72 had a improved cab (side HVAC intake and frameless side window like all the newer models), gas engine changed from allis to 350 chevy, bigger seperator clutch (shares clutch disc with a F2) bigger fuel tank, etc.

If you are only going to do corn with it, no issue with headers, the outer hooks and throat width on a black frame corn head perfectly match the G throat. basically take a A430 or A630 setup for a F series, move hooks out, and hook it on the G. any GL or FG orange head will hook on.

If you plan on soys or wheat, only a G header will work.
I am sure Bish would make an adapter to Deere heads if you want to run a 200 series header, but Bish plates are not cheap unless you sneak up on one.
If you want to get really ambitious, I suppose you can widen a F series header throat. same style hookup, just narrower.

Keep an eye on the frame, specifically the rearmost vertical member under the engine where it welds to the lowest main beam, on 71 and older. 72 was only year with factory bracing. Usually only an issue with the factory extension and ballast to keep a 6 row cornhead down, but a rough operator can tear any of them up. cab frame deck can crack and break if a heavy operator is a rough operator too. we've only had one or two in salvage with this break so its uncommon but not impossible.

Final drives are basically bulletproof, I would even venture to claim tougher than a L/M series final, which is nearly bulletproof in its own right. I believe a variant of this final was used on the 72 L, as well as the transmission. I think the brake housing differed slightly.

Overall a nifty combine that still has its place out there, I hear they made a pretty decent grass combine, supposedly a grass seed producer in Oklahoma still runs 3 of them to bring in the grass crop. biggest capacity in corn of all the closed concave units. Pretty good in edible beans, especially a 71+ with the big clutch to fight slugs.

Good luck and have fun!

When the D-21 was the biggest tractor, the CII was the biggest combine

Hey guys I have a G Gleaner combine I put a new switch in and now it won't stay running when I turn the key to start it it will start but when I let the key go back it won't stay running is there a safety switch somewhere or what do u guys think

I have wired it up just like the old one that was in there before and it worked any one have a wiring diagram for the switch

The straw walkers and cleaning shoe are longer on a 1978 or newer F-2/F-3. The actual square inches of walker area and chaffer area are the same between a G and an F-2/F-3. The F-2-3 has a far better cleaning fan for cleaning and separation of the crop. Must have been many years ago this model G was being used, like when corn yields were 100 BPH. A properly adjusted F-2-3 can do as much as a G ever could in corn. Not more, but just as much.