YM1500 wont start air escaping near fuel pump?

[Torx]

I never thought about exhaust issues. This tractor was an outdoor tractor before I got it.
Now I have another thing to add to my to-do list.
Maybe it will rain this weekend and I can concentrate on indoor things!!!

 

[Torx]

Being stored inside and I believe you stated no signs of Rodents. If you have one of these on the Muffler. Very doubtful. If so was the lid opening when trying to start it?

No sir. It doesn't have one of those. It has a heavy steel dog food can that was on there when I got it.

A funny thing though. Last fall when my neighbor was pulling me to help me get the tractor pull started, I felt it hitting and saw some grayish smoke starting to come out of the exhaust, I motioned him to stop and he stopped, shut off my YM226 and ran back to give the 1500 a listen.
It was sputtering slowly to life and when it finally caught its rhythm and was safely running, I used the foot throttle and didn't realize I was going to give it full throttle. I realized what was happening and leaned back in the seat. My frien in a white golf hat and tan golf shirt was standing right near the muffler which points on a slight angle away from the driver but generally straight up. No telling how many years of carbon and how many ozs. of water were sitting in that muffler, but it looked like a strike in a Texas oil field. It only lasted a brief time but my friend was covered from head to toe in black carbon. He looked like Al Jolson. I set the brake and left him to mind the throttle while I got two warm towels to clean him and the tractor off.

 

[Torx]

Nice job. I have something similar but not as fancy as this in mind. I hope I didn't dream about seeing where Hoye would rent you a puller for $15.00 for a month.
I need to call them and see if its still available before I start busting knuckles,

 

[clemsonfor]

Hey Clemsonfor,
You do remember my last summer problems with a very ugly and troublesome YM1500. It had a rear seal gone bad that the guy who sold it to me replaced at his cost. It also ended up with a bad Oring and I had to do a partial rebuild. Everything but the sleeves. I built a weird looking sleeve puller that worked to pull bith sleeves, or get them started moving. It broke right as I busted loose the back sleeve. It was sledgehammer time after that.
That tractor would actually pick up a King Cutter heavy duty 6' finishing mower and run down the street with it. It would cut heavy grass as well. I didn't use it with a 6' mower as a rule though.

so why did you get rid of that one?

 

[clemsonfor]

No sir. It doesn't have one of those. It has a heavy steel dog food can that was on there when I got it.

A funny thing though. Last fall when my neighbor was pulling me to help me get the tractor pull started, I felt it hitting and saw some grayish smoke starting to come out of the exhaust, I motioned him to stop and he stopped, shut off my YM226 and ran back to give the 1500 a listen.
It was sputtering slowly to life and when it finally caught its rhythm and was safely running, I used the foot throttle and didn't realize I was going to give it full throttle. I realized what was happening and leaned back in the seat. My frien in a white golf hat and tan golf shirt was standing right near the muffler which points on a slight angle away from the driver but generally straight up. No telling how many years of carbon and how many ozs. of water were sitting in that muffler, but it looked like a strike in a Texas oil field. It only lasted a brief time but my friend was covered from head to toe in black carbon. He looked like Al Jolson. I set the brake and left him to mind the throttle while I got two warm towels to clean him and the tractor off.

If there was water in the muffler it was sitting in the cylinders potentially was well or at least around the valves!!!! There is not really a drain or low point to collect water on these!!

 

[careyo63]

Quote= It was sputtering slowly to life and when it finally caught its rhythm and was safely running, I used the foot throttle and didn't realize I was going to give it full throttle. I realized what was happening and leaned back in the seat. My frien in a white golf hat and tan golf shirt was standing right near the muffler which points on a slight angle away from the driver but generally straight up. No telling how many years of carbon and how many ozs. of water were sitting in that muffler, but it looked like a strike in a Texas oil field. It only lasted a brief time but my friend was covered from head to toe in black carbon. He looked like Al Jolson. I set the brake and left him to mind the throttle while I got two warm towels to clean him and the tractor off. :laughing:

Quote=
Now I have another thing to add to my to-do list.

Yep! your pulling the Muffler off. Just hope it's not a Crack in the Head or Eng. Block. With the Dog Food Can you can just about rule out Rodents stopping it up. And if no Water shows up Big+.

 

[Torx]

​

Clemson, I got rid of the original ugly 1500 mainly because there was a fellow standing there with $2500 in his hand and since I bought a YM226 with turf tires all around for $1600 plus a $600 rifle, I needed the space in the barn.LOL
I ended up with this second YM1500 for next to nothing and all the lights including idiot lights all work. Someone had rewired the whole electrical system really well and put the blade fuse's fix in place. It has a new fuel pump and next to new tires. It was a good deal for less than $1000.00 .
With my luck I think I need two tractors. When one breaks down at the far end of the bottom of the hill, I can go tow it back to the barn with the one that's running!! LOL I just waited to long to start working on the YM1500.
I pulled the exhaust off and there weren't any cracks visible. No standing water. The dog food can was on the tractor when I bought it, so I think that the water and carbon that blew out was from me leaving the can off for a night when it rained like a dummy.
I check the valves and lifters and they needed some slight adjustments. One in particular was very open. I added a half gallon of fuel to top it off and started bleeding again. I got a slight hit, bled, better hit,bled about the same. Took Winston's advice if I remember correctly and put jumper cables from my YM226 and the 1500 would catch but would never fully start.
I hooked a chain to my YM226 and my buddy pulled me at about 5 miles an hour. I was in 7th gear on the 1500, dumped the clutch and she sputtered to a start!! I stayed on the throttle a while and put it in 5th gear and rode her around for 20 minutes and it idled on its own!! I adjusted the throttle lever as it wanted to slowly back itself off. I drained half the 50/50 coolant halfway out and added water from a distilled water jug I had sitting in the barn just to kill time. Hit some grease points, checked tire pressure and gave it a once over. I hooked up my 4' bush hog and hit some honeysuckle and the tractor handled it well and the transmission was so smooth shifting compared to the ugly 1500 I sold last March. The charge light went out about 10 minutes after I got it started. Anyways, I ran it for about 3 hours, backed it in the barn, throttled it slowly down until it died. I waited 10 minutes and it started right up. No leaks, no oil loss. I had dinner,and after about 3 hours and a new air filter, it started right up and I drove it around for about an hour, backed it in the barn, shut it down, rechecked the oil and transmission fluid levels. Everything ok. Went to bed with a smile on my face.
I went out yesterday morning, took dog food can off, turned it over and no start.!! Used compression release, and no start. Would hit every once in a while like a cough, but no go. Hooked jumper cables up, and still no start. Bled at all points just in case, had plenty of fuel at the fuel lines before the injectors but it never started. I hit it with a 2 second burst of the lubricated designed for diesel starting fluid while turning it over and it seemed to bog down for a couple of seconds but nothing like wanting to start. My buddy wasn't around so I couldn't try pull starting it. I gave up for the day and put the dog food can back on and called it a day.
While it was running, I got a little light grey smoke at first but it settled down and smoked very little after warming up. I got a light white almost vapor looking exhaust from the blow by, but all in all, the blow by was light to non existent.
I'm gonna have to chalk this up to a pressure problem. Ots the only thing it can be unless I'm missing something here. Anyone who knows of anything else it could be. The valve cover gasket or oring looked new and fit snug. The radiator built pressure and the oil level was consistent. No apparent leaks. I didn't even notice any air escaping beside the fuel or injector pump.
I tried to cobble an injector puller today, but didn't have the right size threaded bolt. It acted fine as far as the injectors go when it was running. I need an adapter to use my pressure gauge anyway.

My guess is going to be a ring job at the minimum. Maybe pistons and rod bearings. I really don't relish pulling the sleeves and renting a honing tool.(I'm not sure what you call the tool that lightly resurfaces and polishes the sleeves.)
Is it possible to hone the sleeves without removing them from the tractor?
Does anyone suggest just inspecting the rods, rod bearings and pistons and just ringing the pistons without doing a full or partial rebuild?

My driveway is paved and downhill for about 150 yards. Maybe I should keep the 1500 in the garage and just push it down the driveway whenever I need it to cut my or my neighbors a garden each spring. That reminds me. I never unhooked the bush hog darn it!! Well, maybe it will come off easily if I need to use it. I'd actually like to sell the 1500 and my older King Cutter mower or tractor and bush hog as a pair, clean up my YM226 and do a much needed brake job on it and look at the new Yanmar tractors.

You kind folks all gave me some great ideas and solutions and were definitely patient with my questions and unusual descriptions. I really appreciate the help that I've always gotten here.
My brother who lives in Tokyo found a miniature Yanmar red plastic tractor about 3" long pulling a harrow disc. Its boxed like the old hotwheels cars and has Yanmar tractor on the box. I'm going to be posting some close up photos of the tractor with moving implement as well as the box real soon. Funny thing is that the box for the miniature tractor says"Made in Vietnam" right on the box.

Thanks for all your help and patience and I hope that if there's anything I should try or do, besides a pressure test, please let me know. And any comments on the finicky YM1500's that land in my barn would be welcomed and appreciated.

Cheers,
Torx in Tennessee

 

[clemsonfor]

Still sounds like your battery is weak and not spinning the starter to the correct speed. If the charge light was on for 10 mins either your regulator is a broken or loose wires? And i think all of us forgot to mention that in these gravity fed fuel systems your fuel SHOULD be all the way full so that you have the weight of the fluid pushing the air out of the lines when you bleed it.

Yes Domush ( think i mentioned him before) honed his cylinders in place if i remember right. i will look for his thread to link too.

Look at this thread...its over 30 pages but it goes through Domush's rebuild of his 336. He does the "shade tree" type rebuild or the old farmer rebuild with honeing the liners and rering new pistons where needed and new bearings. This motor was way worse than yours when he started. Seemed to work for him, sadly he has not been back to the site in over a year, and has not responded to the PM i sent him a few weeks ago.

http://www.tractorbynet.com/forums/yanmar/235280-ym336d-started-knocking-loud-while.html

you can find those little yanmar tractors on ebay i think i have seen them from time to time.

 

[normde2001]

You proved nothing if you did not try to start the tractor with the exhaust manifold off. Additionally, if it starts, but runs poorly, you can see if i cylinder is firing better than the other.

 

[clemsonfor]

Norm is right, You still dont know it the muffler is coked up or not, or if one cylinder is blowing white or grey smoke and the other nothing.