Combines l2

This tends to be a true statement! The 649T cranks are good at original size, but when ground or ground and shot peened they just don't stand up in the turbo models. The natural aspirated aka 180_185 and the F Gleaners had a better chance of not breaking the crank after a grinding but I wouldn't hold my breathe there either. I personally know of several 190XT's, 7000's and 7020's that had ground cranks put in them and in less than 100 hrs had broken cranks. I am a degreed diesel mechanic and have owned all of the above mentioned tractors and combine which didn't need the crank but I had the info and still have the 8000 series tractors and an N6. You might want to think about doing the bottom end_crank job before it ventilates the block with a rod or does major damage, the crank isn't cheap either, but it is less than an engine. The others can correct me if I am wrong, but when I last checked the 649 crank was more expensive than the 670 crank.

If the crank can not be turned down in size can it be "built up" and then re-turned to sizeIJ Also what crank is in the old series 7080'sIJ

The 7080 is the 3750 or the early 670 or the 426cid block which is a different engine all together. The l,M,and F, not F2, 180_185, 190_190XT, 200, 7000, 7010, 7020 and the 8010 use the smaller block 301cid better known as 2800, 2900, or 649 series. The 7080's problem was too fast of RPM and not a true crank problem, when they slowed them down the problem of breakage went away. I still wouldn't trust a non-stock 649 crank, I have just seen and heard of too many nightmares. The 670 crank doesn't have the problem of being turned and shot peened within reason, just the 649 crank, figure that one out. And as I stated before, at last check the 649 crank is quite a bit more expensive than the 670 crank to purchase.

I guess I would say more like the 145 hp. That is closer to what they had in them.They are excellent machines and basically simple to maintain. They do a great job once you understand how to set them. A pure proven design, nothing too hard to understand.

l-3 Has the 160 HP. I belive a conventional requires less hp than a rotary. A straw chopper will use some Hp ,unloading on the go etc.

Our first l2 [ 1976 IJ ] had a smaller engine than our later 78 model. Sorry! Can't remember the H.P's but around 130 for the 76 and140-5 hp for the 1978 model I think. Still viewed affectionately as one of the simplest and best combine models we ever owned.

Most of the l2's have 156HP 670T engines or the 301CIs at 145HP (rare). Performance should be between the models mentioned . Stronger in beans if the cylinder is spike or hard surfaced cyl bars.

Thanks tbran! I got those HP's wrong. The memory stack ain't what it use to be. Cheers!

We have an l2 also.....looking for a 20' series 2 bean head.....would you be interested in selling just the headIJ If so what condition and how muchIJ

I would be interested in seeing your machine pictures and asking what you are wanting for the combine. Thanks Brent