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Could it be a governor issue?
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They going so fast had to run beside them to get pic.
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Looks like a Sasquatch, Nessie or bank robber CCTV pic!
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I have a 416H with the Onan P216. I got this tractor with about 500 hours on it, and ever since I’ve owned it I’ve had to run it at about half choke. Otherwise it had a surge that seems to be common with the Onans with bad intake seals. I’ve read about the intake needing to be resealed and tucked that away into memory for another day. Ever since the fall the tractor has been running worse and worse. I would be using it and it would randomly die. Other times I use it and it start surging. At this point it runs terrible. The choke has to be all the way out, and it surges/hunts for an idle all the way from almost dying to the correct throttle setting. Basically it’s unusable right now. Things I’ve replaced recently to try to fix this. I’ve changed parts once at a time to see if the problem resolves…. -Fuel lines from fuel tank to carb -Fuel pump -Fuel pump impulse line -Fuel filter -Air filter -Spark plugs -Resealed intake manifold and replaced gaskets -New carb Since it has to have the choke all the way out I assume it’s a fuel problem. I can see fuel pulse in the filter, and I’ve taken off the line at the carb and can see fuel pumping from there. it does seem to go away completely at times. Although more often than not it runs terrible like right now. Any ideas?
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@Pullstart I think this is pic you was looking for.Hauling aChebby and pulling doodge
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I ordered some spacers. I’ll update the thread once they get here and I get things installed.
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Lefty loosey....Righty tighty No need to turn it over. On your way Joe?
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Just checked with Grok Ai and found this: 111 sources 7 by 7.5 bolt pattern A 7" x 7.5" bolt pattern (likely meaning 7 inches front-to-back by 7.5 inches side-to-side, based on common measurements) is a standard four-hole mounting pattern found on many compact/utility tractor seats, older garden tractors (like some Wheel Horse models), and even adaptations for other equipment. This pattern is very common for aftermarket universal compact tractor seats, especially those designed for brands like Mitsubishi MT series, Kubota, Yanmar, Satoh, and similar Asian/European compacts. Many seats include multiple slotted or pre-drilled patterns that cover 7" x 7.5" (often listed as 7.5" width x 7" depth or similar variations). Recommended Replacement Seats Here are some solid, affordable options that support or include this bolt pattern (or very close multiples/slots that allow easy alignment): High-back compact tractor seats with multiple bolt patterns (including 7.5" x 7" and nearby slots): These are popular for Mitsubishi MT models and similar. They feature steel pans, heavy-duty black vinyl, central drain holes, and often accept flip brackets or slides. Examples include seats from Reliable Aftermarket Parts, Maple Farm Seats, or similar on Amazon/eBay, priced around $100–$200. Here are some visual examples of universal compact/high-back tractor seats that commonly feature multi-pattern mounting (including 7–7.5" ranges) for easy fitment: amazon.com mfseats.com amazon.com These show typical high-back designs with bottom pans that have versatile hole patterns. Where to Buy Amazon — Search "universal compact tractor seat high back" or "Mitsubishi MT tractor seat replacement" (many list patterns like 7.5" x 7", 7.5" x various depths). Check product images/descriptions for exact bolt diagrams. TractorSeats.com or AskTractorMike.com — Great for Mitsubishi MT series specifics; they offer Uni Pro or similar bucket seats with multi-pattern mounting. Agri Supply — Their compact seats with flip brackets often include 7-1/2" x 7" or adjustable rows. eBay or Tractor Supply — Look for "universal tractor seat 7.5 bolt pattern" or Concentric/aftermarket brands that list 7.5" x 7" among options. SeatHaus or Bailey Hydraulics — Carry narrow/compact seats with patterns including 7.5" x 7". Pro Tip: Always double-check the seat's bottom mounting diagram in listings (many have photos of the pan with all holes labeled). If the exact 7x7.5 isn't listed but there are slots or nearby holes (e.g., 7.5" x 1–7" adjustable), it usually works with minor alignment. Measure your current setup precisely (center-to-center distances) to confirm. If none match perfectly or you need a swivel/adapter, some mounts (like NRS-style) use this pattern exactly for attaching seats. Let me know more details (e.g., high-back vs. low-back preference, color, or if you need armrests), and I can refine suggestions!
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The older Electric PTOs like yours need bigger push pf bolts. Probably 7/8"NC. Do not use a gear puller to remove the electric PTO you will damage it. When up get the old friction disc off and reinstall your Electric PTO the arm on the PTO will be inside of the engine bracket. Use clevis pin to secure it.
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Well that doesn't seem right either. Now it's a negative number?? I've never seen a bolt that small.
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It says 8-10in., no way you could use it for metric.
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Odin - God of the Vikings
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Your gonna get yelled at by the guys for using calipers but hey we don't have mics. Yeah a little out but you were using calipers so your dims might be questionable. Did it smoke? What did the top of the piston look like... oil wash? Try Richard's trick.
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@pfrederi all the related , wide grease shields are glairing to me , easily removed and wiped / flushed out , like a 550 deg flash point and also polyurea rated , anti sling grease , very often refer to COLLECTIVE ROTATIONAL DRAG , that is what eats belts and makes for difficult starting . personally ease into my pto lever , no whining noise at all , also have never replaced a clutch disc , due to heat splitting or heavy wear , make a point of verifying ease of function , at every stage . also none of my belts are frayed , from belt bounce or incremental bearing hang up , due to lube failure . great pictures , if I had electric start , it would have the soft start set up . pete
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double posted.
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401 Suburban Resto
Mike'sHorseBarn replied to Achto's topic in Restorations, Modifications, & Customizations
Riiiiiiiight.........sure you are.......... -
Well you know what we do with old horses ... We can put child proof floor boards on a Lawn Ranger ... NO ... no projects ... Dan's already getting my projects I'll never get to and he's got enough projects ... 401, 702, pullin mules, two seaters ... 'sides I'm tractor heavy ... downsizing ... culling the herd ...
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'Course not to far off there EB. When I first succumbed to the addiction I had to look for them. Now they seem to fall out the sky. Some for free and many $100 rollers with a motor that fired right up. Some really nice ones for short money. People would see my junk yard and line ups from the road and just stop and see if I ran a tractor repair shop and ask if I was interested in another horse. She has since made me move them to unseen quarters Alice the C-120 came from a drive by for very very short money ... 200 ... ... with a magnum, a deck and a show tiller!!! Widowed PO just wanted to see it a good home.
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401 Suburban Resto
ebinmaine replied to Achto's topic in Restorations, Modifications, & Customizations
Nahhh... I've had em here. 🐻 do NOT like stirrup tractors. It's a comfort thing. With my body pain issues I have to be able to put my feet flat down on the floorboards while I'm cruising around. You want a couple C160 project tractors though? You stop out. I'll fix you up. -
Googled those numbers Sparky just for grins and came up with this ... https://www.ebay.com/itm/177488607268 'Course also came up with this ... The string "persons mt-3-1-92 seat" appears to be a query that combines a reference to a Bible passage, Matthew 3:1-9 (MT 3:1-9), with a discussion point about the concept of "persons" and a "seat" (likely the judgment or mercy seat). Best be careful with the "judgement" seat ...
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Got a couple of questions, should I just hit the cylinder with dingle balls, and reinstall piston. 2-4 thousands,top middle and bottom. 2.956 - 2.959 (measurements may vary, used telescoping gauge and calipers) don't have big enough micrometer. No ridge
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Whatsaa mattah wit' you... That's not metric & american. That's so you can use it on bolts that face each direction.
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Seen this for sale on FBMP Metric and American??
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BTW this is on the overhead door for shop art Dan ... really really nice shape. I have no idea where it came from but belongs on a tractor. I'll bring it tonight for inspection along with a collection of pullies.
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The painters at work had a low rolling chair for lower work.. They were older gents. It had a seat just like that. I think they got it at Mac Carr or Grainger.
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