Quote:
Originally Posted by m67tang
I’m such a newbie I don’t know what a trunnion is. I have a feeling I might learn. I can definitely do the “ clean it up, dry it up, find the leak without the tunnel cover on it” part.
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Basically all the "full size" hydro Cadets suffer from wear an tear of the trunnion. This more or less is the external components that help with smoother starts and maintaining constant speed. My analysis of it function may be off a bit, but that's pretty much what it does. There are a couple springs and pins that get worn/broke/disappear. $25 will buy all 4 from a dealer (I think). Thing is you have to have the rear out to change them. Very simple with the rear out. Then comes the wear and tear. The slot these fit in gets worn really bad to the point it sometimes needs attention. Also shim washers are used to take up wear. Its just a good topic to read up on, Several folks here have posted about their adventures repairing these. Not saying yours needs anything, but its one of those things that is easy to fix while the rear is out, not much more work involved. Same as inspecting the driveline, old age they wear out. Problem is tearing it down, ordering parts, and getting it all fixed before your grass needs cutting again--that's a parlor stunt for anyone! If nothing else, find your leak, determine if its bad/urgent enough to fix now, and spot check the other items. You may be pleasantly surprised you have a solid machine, or you may say how in the crap did I finish mowing last time. Four little screws in the tunnel cover and you'll learn a lot about your machine. FYI, those are an "odd size" screw, I think a #12. That's why so many people put the wrong thing back in when they lose one.
Good luck, let us know what you find. A little slop here and there is normal for the driveshaft and trunion. Post pics if you can, we love pictures!