fdsinozich 1 #1 Posted May 12, 2011 I have a 1974 C120 Automatic 1-0495. I replaced the drive belt and the idler lever won't stay down when operating the tractor. Is it supposed to lock down someway? Or is the belt too short? I used a 5/8" X 84" belt. Thanks, Frank Share this post Link to post Share on other sites
fdsinozich 1 #2 Posted May 12, 2011 I took the belt off and the idler goes down and is secure in place. The belt is obviously too short but the 7478 is 5/8" x 84" which is what I put on it. Now what?? :) Share this post Link to post Share on other sites
dgjks6 8 #3 Posted May 12, 2011 rigth belt and right length Not that I have ever done this, but did you put in on right? Share this post Link to post Share on other sites
WH854 45 #4 Posted May 12, 2011 Here is a picture of My c-165 drive belt routing, there is a spring that holds the idler down. Here is another one Hope this will Help!! Chas Share this post Link to post Share on other sites
Giles 2 #5 Posted May 12, 2011 Don't know if there is a difference but my c175 looks quite similar to yours and I use a B-83 belt. From the photos, the belt seems to be just about 1 inch too long. Can you measure the old belt? Share this post Link to post Share on other sites
fdsinozich 1 #6 Posted May 12, 2011 I purchased a longer belt, 5/8" X 85" and it is perfect. PROBLEM SOLVED!! Thanks to all. Frank Share this post Link to post Share on other sites
WH854 45 #7 Posted May 12, 2011 Don't know if there is a difference but my c175 looks quite similar to yours and I use a B-83 belt. From the photos, the belt seems to be just about 1 inch too long. Can you measure the old belt? I don't have the old belt But here is what I use on my 2 Cs P/N 7473 Drive belt for C-85 C-105 C-125 C- 145 C-165 P/N 7466 Engine Drive pulley for C-105 C-125 C-145 C-165 C-175 I don't know what a B-83 belt is Chas Share this post Link to post Share on other sites
Giles 2 #8 Posted May 12, 2011 A B-83 belt is 5/8 X 83". It is a "Gates" belt and I have used them for about 28 years (Not the same belt) of course, but one usually last for about four or five years. If you look at your top photo, there is a guide plate that the bottom of your belt sometimes contacts, or rubs. That is there to help guide the belt by preventing too much flop. When the belt is tight, you should have about 3/8" to 1/2" clearance between the flat plate and belt bottom. A shorter belt would acomplish this because, in the photo, the belt is held up by the plate--belt is too long. Remember---I am talking about my C175. Yours could be different :hide: Share this post Link to post Share on other sites
WH854 45 #9 Posted May 12, 2011 A B-83 belt is 5/8 X 83". It is a "Gates" belt and I have used them for about 28 years (Not the same belt) of course, but one usually last for about four or five years. If you look at your top photo, there is a guide plate that the bottom of your belt sometimes contacts, or rubs. That is there to help guide the belt by preventing too much flop. When the belt is tight, you should have about 3/8" to 1/2" clearance between the flat plate and belt bottom. A shorter belt would acomplish this because, in the photo, the belt is held up by the plate--belt is too long. Remember---I am talking about my C175. Yours could be different P/N 7473 Belt is 5/8 x 82 Chas Share this post Link to post Share on other sites
can whlvr 994 #10 Posted May 13, 2011 is a 7473 for an 8 speed ? Share this post Link to post Share on other sites
C-Series14 15 #11 Posted May 13, 2011 7478 for the Auto's and 7473 for the 8-Speed's.... Share this post Link to post Share on other sites
