154 Governor issues

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cadencewildbeast
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154 Governor issues

Postby cadencewildbeast » Wed Jul 29, 2020 8:33 am

Greetings gents.

I purchased a 154 2 years back and unfortunately had to let it set outside under a tarp untill my new home was completed. That time is now, and I am getting it running. I have rebuilt Carb, went through the distributor due to corrosion, new coil & plugs, and got it running for the most part.

I believe what i am dealing with now is the governor sticking on me. the linkage to the throttle cable is loose and moving, but when I watch the linkage from Gov to Carb when i adjust throttle I get nothing nothing nothing then huge jump at the carb, and it stutters and dies. if i manually help the Gov/ carb rod it idles up fine.

Is that a something that I can deal with without removing the gov? Also at throttle cable completely on the low side I have no tension on the spring that connect the throttle to the Gov rod. is that correct?

Another thing I would like your opinion on is I am getting no visible smoke when tractor is running at any speed until I engage the mower deck. When the mower deck is engaged I get what I feel is a lot of smoke out of the oil dipstick area. What could that be a sing of? I have checked the oil level several times and it is full.

thanks for the help,
Nathan

Eugene
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Re: 154 Governor issues

Postby Eugene » Wed Jul 29, 2020 8:59 am

The governor on my 154 gums up if it sits for a long time, such as over winter.

Remove the hood. Loosen the throttle cable from the governor arm. Spray can of solvent. Spray all locations on the governor where moving parts enter the governor.

Spray several times a day. Wait. Gently move the throttle cable arm and the cross shaft. Don't pry with any tools, just gently move the parts by hand. Spray some more. The process may take several days.

Solve the governor issue first. Operate the tractor for several days, then check the compression. Smoke for dipstick breather could be condensation.
I have an excuse. CRS.

cadencewildbeast
Posts: 8
Joined: Sat Dec 30, 2017 7:07 am
Zip Code: 46582
Tractors Owned: Cub Cadet 125
Cub Cadet 127
Cub Cadet 1200
1972 LoBoy 154
Farmal Cub
Farmal H

Re: 154 Governor issues

Postby cadencewildbeast » Wed Jul 29, 2020 12:35 pm

Thanks for the reply. I have been doing exactly what you recommended so far. Did spend about 2/3 hours mowing with it just now. Ran fairly well, but was still a nightmare to get PTO to engage without puttering out.

Eugene
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Re: 154 Governor issues

Postby Eugene » Wed Jul 29, 2020 1:21 pm

Complete the 100% engine tune up; valve tappets, timing, compression tests.
I have an excuse. CRS.

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Re: 154 Governor issues

Postby Gary Dotson » Thu Jul 30, 2020 7:21 am

Where the governor rockshaft crosses the front of the engine, it passes through a stand off on the carb. side of the engine. That location can rust and cause a very erratic governor function, lube it well! You say you've been through the distributor, how did you set the timing? You're stumble while trying to start the mower could be late timing, it's best to set it with a timing light.

cadencewildbeast
Posts: 8
Joined: Sat Dec 30, 2017 7:07 am
Zip Code: 46582
Tractors Owned: Cub Cadet 125
Cub Cadet 127
Cub Cadet 1200
1972 LoBoy 154
Farmal Cub
Farmal H

Re: 154 Governor issues

Postby cadencewildbeast » Thu Jul 30, 2020 9:32 am

Gary Dotson wrote:Where the governor rockshaft crosses the front of the engine, it passes through a stand off on the carb. side of the engine. That location can rust and cause a very erratic governor function, lube it well! You say you've been through the distributor, how did you set the timing? You're stumble while trying to start the mower could be late timing, it's best to set it with a timing light.


Your very likely correct. The timing is basically set to ear right now. Got it running then just adjusted to what sounded the best. I am trying to find someone close that has a timing light to check it. I don't want to have to but one and probably never use it again.


Ill check the pivot point on the carb side and see if that is free.

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Don McCombs
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Re: 154 Governor issues

Postby Don McCombs » Thu Jul 30, 2020 10:10 am

Many auto parts stores will lend or rent diagnostics tools.
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Jim Becker
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Re: 154 Governor issues

Postby Jim Becker » Thu Jul 30, 2020 10:50 am

If you don't have a timing light, static time it.

cadencewildbeast
Posts: 8
Joined: Sat Dec 30, 2017 7:07 am
Zip Code: 46582
Tractors Owned: Cub Cadet 125
Cub Cadet 127
Cub Cadet 1200
1972 LoBoy 154
Farmal Cub
Farmal H

Re: 154 Governor issues

Postby cadencewildbeast » Sun Aug 02, 2020 2:11 pm

Well guys, thanks for all of the suggestions and though. I went out this weekend and bought me a compression tester and a timing light. Got the timing at what I though it needs to be. The compression comes back at cylinders 1, 2, 3 are all 60/70 PSI, and number 4 was 65/75psi. I am not sure what the compression should be, but that is where I am at.

Eugene
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Re: 154 Governor issues

Postby Eugene » Sun Aug 02, 2020 3:22 pm

cadencewildbeast wrote:I am not sure what the compression should be, but that is where I am at.

My guess that was the dry test results. Wet test and then report back.

Wet test will indicate possible problem areas; valves, rings, rings and valves.

60/70 psi dry test is very very low. You would like to see 115 to 120 psi.
I have an excuse. CRS.

cadencewildbeast
Posts: 8
Joined: Sat Dec 30, 2017 7:07 am
Zip Code: 46582
Tractors Owned: Cub Cadet 125
Cub Cadet 127
Cub Cadet 1200
1972 LoBoy 154
Farmal Cub
Farmal H

Re: 154 Governor issues

Postby cadencewildbeast » Sun Aug 02, 2020 8:55 pm

Will do. I read some posts about compression tests after posting this and seen where people were saying to do wet tests. Will report back with those numbers


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