Continental Z-134 slow governor reaction

It seems the rpm varies much more than it should. Where should I look first to correct this problem?

Here is the governor adjustment procedure:

Located in ARCHIVES:

Supplied by Mr. William Parris 04-24-2001:

Warm up the engine and adjust carburetor mixture. Disconnect governor rod at carburetor and adjust engine idle speed stop screw to obtain 400-450 rpm. Reconnect governor to carburetor rod.
Start engine and open the hand throttle to wide open position. Desired engine speed of 2175-2225 rpm can be obtained by loosening the U bolt and rotating same on throttle rod until correct engine speed is reached. Retighten U bolt. With engine operating at 1000 rpm check for surging or unsteady running. If surging exists, check for and remove any binding in the operating linkage. If surging still exists, turn the bumper screw in until surging is eliminated and lock the adjustment.

If major adjustment is required follow this. With the throttle rod and the throttle butterfly valve in the wide open position, adjust rod to provide 1/32" over travel. Disconnect lever arm rod at upper end and remove.

Set hand throttle control lever to the idle position and observe if governor compensating spring link is contacting the throttle rod. If governor compensating spring link is not contacting the throttle rod, loosen the U bolt and rotate link until it just touches the throttle rod. Retighten U bolt.

Reinstall lever arm rod and with the hand control in the idle position, remove governor lever spring. Adjust length of rod by loosening the lock nut and rotating the rod in the plunger until the bottom of the plunger just contacts the governor lever. Reconnect the spring and retighten the locknut. Make the minor adjustments as above.


I hope this helps instead of adding confusion. If the governor does not work at all, you'll have to disassemble it and find out what's wrong.

Good luck,

William Parris:


The last Z-134 I assisted on, had the Governor as per pictures replaced:



Bob..

When you say it varies too much, is it surging?
When the engine loads down does the throttle try to open to compensate or does it just bog down?

Its working, but just seems excessively slow. Lets say were running along at a stedy rpm, then get into some tall grass, it will, i dont want to say bog down like if the grass is too tall, but the increased load will drag the rpm down, more than seems reasonable. Then all the sudden it will open the throttle and just get all up on its self, the revs will increase and substantially overshoot the steady rpm we were at before. It will settle back down to the stedy rpm, but all this will take, say 15 seconds. My tach dont work, but id guess theres a 3 or 400 rpm variance.

It just seems like it will substantially loose rpm, then really pour the coal to it. Like it needs to pour less coal sooner.

Check those balls for having flat spots. Can someone walk along and see if the arm is slow to move? How much wear is in the linkage?

Well that picture didn't work like I had hoped. Timinohio send me a email [email protected] put (Z134 governor) as the subject, and I'll send you detailed instructions on the governor adjustment.

First thing I'd do is check for slack in all the linkages for sure. Having said that though, my 202 governor works very quickly and it's a little slack in some areas whereas my 35 is relatively tight and it still doesn't work properly. I think it's a carb issue with that one though.