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  #31  
Old 02-07-2018, 03:09 PM
Mr Bob Mr Bob is offline
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Default Kohler 321 rebuild

I took a copy of needed specs along with the block. I believe that it had all info needed. It did have the tolerances for sure. It was already a .010 over bore. The pictures I posted made the piston look a lot worse than it was. Machine shop said it was in tolerance, but I ordered a kit with .010 over piston and rod .010 under. The shop said the crank was out .002 This shop has been in business since 1955. They did a lot of work for friends that I was drag racing with in the early 60's thru late 70's. I am really nervous about doing this but with all the support I am getting, I believe I will get it done. Thanks to all that are pitching in and have a great day.
Bob
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  #32  
Old 02-07-2018, 06:14 PM
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sawdustdad sawdustdad is offline
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Sounds like it's working out fine. I'd encourage you to try to build the engine yourself. The Kohler manual is very good and as long as you follow the steps carefully, you should be OK. The first one is a little intimidating, but it's actually fun, and if you take your time, it'll come together and you'll have that satisfaction of having done it yourself.
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149-3pt, weights; 72-fenders & 3pt; 123; 148R-creeper, 3pt, spring assist, weights; 128 with rear PTO, Tandem 109 w/ dump bed, 1000-creeper, 3pt, weights; 108-creeper, 3pt & spring assist; 1250; 1450 w/weights; 1650-3pt and weights; a bunch of mower decks, and snow blades, QA42A Snow thrower, #1 Tiller w/exts, #1 cart; Ford 2000; Kubota BX23--Frank
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  #33  
Old 02-10-2018, 03:39 PM
Mr Bob Mr Bob is offline
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Default 149 rebuild

Received my Piston, rings, connecting rod, and gasket kit in the mail yesterday. Block is still at the machine shop. Shop probably works on larger more money making jobs first. Eager to get started but will have to wait. Cleaned the replacement cam that I bought from one of the members. Looks pretty decent. Going to make my small work bench Monday. Have a great day.
Bob
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  #34  
Old 02-10-2018, 07:40 PM
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J-Mech J-Mech is offline
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Better take them the parts.... they can't finish fitting without the piston and rings. Probably waiting on you....
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  #35  
Old 02-10-2018, 07:45 PM
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jbrewer jbrewer is offline
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Quote:
Originally Posted by Mr Bob View Post
Received my Piston, rings, connecting rod, and gasket kit in the mail yesterday. Block is still at the machine shop. Shop probably works on larger more money making jobs first. Eager to get started but will have to wait. Cleaned the replacement cam that I bought from one of the members. Looks pretty decent. Going to make my small work bench Monday. Have a great day.
Bob
Bob, sounds like you're getting close to build day.

Make sure and take some pics for us!
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  #36  
Old 02-12-2018, 08:08 PM
Mr Bob Mr Bob is offline
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Default 149 rebuild

Took my new piston & rod to machine shop this morning. Said they will have it ready tomorrow afternoon. Have a couple questions.
1. Can you use the old thrust washer on the gov. gear if you are using the old gear?
2. What holds the gov. gear on shaft? Looks like it would slide right off.
Starting to get excited and anxious and also nervous.Will post pictures as I go forward. Have a great day.
Bob
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  #37  
Old 02-12-2018, 09:15 PM
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J-Mech J-Mech is offline
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The looooong screw that goes in the block by the governor arm hold the gear in.

You can reuse all the shims in the engine, except the gasket shims on the rear (or front if you go by Kohler) bearing plate.
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Jonathan
"They say money doesn't buy happiness....... but it does buy Cub Cadets, and Cub Cadets make me VERY happy!"

Runners: 1050, 1811, 185LB, JD 317
On the "back burner": 2-71's, 1250DS, 1000, 582, 682, 982, JD 318.
I have over 30 implements/attachments! IH, Cub Cadet, Brinly, Agrifab, and more!
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  #38  
Old 02-13-2018, 10:39 AM
Mr Bob Mr Bob is offline
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Default 149 rebuild

Thanks J-Mech. I thought that was what that loooong screw was for, but it seems the gov. gear will slide about half way along the shaft. Is that normal? Have a great day.
Bob
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  #39  
Old 02-13-2018, 11:45 AM
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Normal, yes.
When the engine is assembled and running, remember the governor cross shaft is in constant spring contact with the governor. It doesn't move. Only reason for the retainer screw is so the gear doesn't come off the shaft during 1.) Starting, and 2.) Engine removal.
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Jonathan
"They say money doesn't buy happiness....... but it does buy Cub Cadets, and Cub Cadets make me VERY happy!"

Runners: 1050, 1811, 185LB, JD 317
On the "back burner": 2-71's, 1250DS, 1000, 582, 682, 982, JD 318.
I have over 30 implements/attachments! IH, Cub Cadet, Brinly, Agrifab, and more!
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  #40  
Old 02-13-2018, 02:05 PM
Mr Bob Mr Bob is offline
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Default 149 rebuild

Thanks J-Mech. Will proceed to the cam install. Think I will build my work bench first.
Bob
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