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Maytag Engine Collectibles Maytag engines, washing machines, mowers and other engine driven tools for the farm.

Maytag Engine Collectibles

Maytag M92 Long Base - Won't Start?


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  #11  
Old 09-24-2018, 08:51:21 PM
Huntkng Huntkng is offline
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Default Re: Maytag M92 Long Base - Won't Start?

These are the before...and after pic's:






---------- Post added at 05:46:27 PM ---------- Previous post was at 05:44:27 PM ----------



---------- Post added at 05:51:21 PM ---------- Previous post was at 05:46:27 PM ----------

https://imgur.com/o6DLe9N
https://imgur.com/XZOsUBn
https://imgur.com/E3LoeKI
https://imgur.com/sulrLA5
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  #12  
Old 10-01-2018, 06:30:41 PM
glholmes glholmes is offline
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Default Re: Maytag M92 Long Base - Won't Start?

@andrew mackey, I know I didn't ask the original question, but thank you so much for chiming in. I've been up a wall with my 92, unable to figure out why I couldn't get the thing to run. Turns out, my fuel check ball was stuck AND my needle valve was not seated properly. Starts and runs pretty decently after fixing both problems. I have copy/pasted your post and it will now reside in the shop with my manual for future troubleshooting.
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  #13  
Old 10-01-2018, 07:08:02 PM
Andrew Mackey Andrew Mackey is offline
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Default Re: Maytag M92 Long Base - Won't Start?

As for the original post - have you checked the crankcase for air leaks? Take some soapy water and cover the carb flange where it meets the block. Also soap up the block where the starter is next to the block. kick the engine over. Any bubbles indicate air leaks. If by the starter, the crank bearing is leaking. If by the carb, the flange may be warped or the threads pulled put slightly on the block. Some emory and a flat surface will have the carb set, and a good file will cure the pulled threads. Do you have the lead washers under the carb mount screws? The brass assembly is the governor. it opens the points. Should open to .020". As engine speed increases, it pivots, and the points open less. Eventually, the points don't open, and the engine coasts until speed drops and the governor allows the points to open again. Besides making the engine coast, the smaller points opening as the engine gains speed, also advances the timing, giving more power. If the points are moved, it is virtually impossible to re-time unless you have the knowledge or experience to set them. Maytag 'timing tools' have been a scam for the most part. if you have doubts, remove the entire timing plate assembly and send it to mark. you won't be sorry!
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  #14  
Old 10-02-2018, 09:36:04 AM
Huntkng Huntkng is offline
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Default Re: Maytag M92 Long Base - Won't Start?

Thanks for the responses GL Holmes and Andrew Mackey!

I just finished the soapy water test, there were a few small bubbles on the left side of the carb when it mates up with the Crankcase. I do not have lead washers but I did find copper washers and when I tightened it down the bubbles stopped. On the bottom lip of the carb where it mates up with the gas tank it is not a tight fit and gas leaks out when the engine is tilted, like when I move it from the bench.

I have GREAT (!) spark now that I have changed plugs. I've isolated the problem to the carb itself. I did rebuild it, I'm going to dive back into that today.

I'm giving it the old college try again, if this fails off to Mark it goes,

Thank you, Bill in OR
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  #15  
Old 10-19-2018, 11:29:17 AM
Huntkng Huntkng is offline
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Default Re: Maytag M92 Long Base - Won't Start?

I was excited it started...but, it started...ran for 15-30 seconds and died. Starts right up! Dies quickly. Probably 15+ times all the while: Playing with the Governor, Readjusting the fuel needle. Shot in some starting fluid...same results. It starts on the first kick....dies

New plug
Rebuilt "carb" - pulled it and reset the poppit. It is loose in the hole of the brass nut.
Checked the points at .020
Good compression
Great spark
New spark plug wire
Added rare earth magnets to the regular magnets.
and on....and on...

Looking for more guidance here.

Thx all,

Bill in OR
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  #16  
Old 10-19-2018, 12:25:45 PM
Pat Barrett Pat Barrett is offline
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Default Re: Maytag M92 Long Base - Won't Start?

Since we seem to be grasping at straws. Take the check valve apart, and turn the flapper disk over, 180 for it's present location. And try it.
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  #17  
Old 10-20-2018, 10:22:49 AM
Huntkng Huntkng is offline
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Default Re: Maytag M92 Long Base - Won't Start?

I am grasping at straws now. I pulled the flapper, pulled and reinstalled the brass (air valve and seat) in the "carb". All is correct there. I just ordered a new Air Cap Valve nut. I rechecked the point gap, governor, Plug gap...hummmm. Quite the challenge! It almost has to be a fuel issue. Next I'll order a new needle valve.
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  #18  
Old 11-04-2018, 09:31:39 AM
Huntkng Huntkng is offline
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Default Re: Maytag M92 Long Base - Won't Start?

Wooohoo, It starts on the first kick and runs well. Thanks all for walking me through this I learned a lot from you guys / gals. The final thing that I did which seemed to make a difference was changing out the Brass air vent valve nut on the bottom of the "carb" / fuel mixer. I had previously rebuild the fuel mixer and I noticed that the hole which holds the poppit stem was oversized and out of round. It was not letting the poppit shaft move up and down vertically and it must have been wobbling enough that it would not seat correctly all the time, hence some time it would start, run and then stop...repeat. A second contributing factor was the addition of several small rare earth magnets attached to the faces of the original magnets which significantly increased the magnetic pull and field.

Now that it is running my wife wants to know what the heck I plan of doing with it????

Bill in OR
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