Get Me The Gun!

When it runs right, it's the perfect loader tractor. Instant start and purrs like a kitten. But, I just cannot keep the miss out of that engine.

Less than three hours total running time on a new engine. Runs about 10 or 15 minutes and then goes to missing. Clean or replace the plugs and the cycle starts all over again.

Just acts like the plugs stop working for no apparent reason.

New coil, solid state ignition, new wires, rotor and cap.

Just don't think I was cut out for gas tractors. Somebody please bring me a diesel and take this Gawd-forsaken thing away. :>(

Allan

Check to be sure that the throttle shaft is not worn. Sometimes people tend to open the jets a little bit to try to compensate for it sucking air through the throttle shaft.

Another thing you might check, since you say it was just rebuilt, is to make sure that the coil hasn't been wired backwards.

Day before yesterday, I ran it off and on most of the day doing chores and odd jobs; never missed a beat all the time I was using it.

I dunno. I still think the root of it all is that junk carburetor. It just should not be puffin' that black smoke at mid throttle. Doesn't that just 'scream' that it's getting way too much fuel?

There is no high side adjustment on it either. :>(

Allan

You said the plugs are black and it spits black smoke when it runs bad so that indicates a rich mixture.

Rod

It's not a hot/cold thing in any way. Runs just fine cold or hot until those silly plugs get all carboned up. Replace or clean and it cures it..... ...for awhile. :>(

Allan

Bear in mind you should also have known better, After 1958, IH R&D was going into diesel. I could never understand why they didn't just use the pre 1958 4 cylinder gassers and tell the buying public everything over 50 hp would be diesel only.

But this same engine design was used in millions of tractors, trucks, pickups and panel trucks.

Damned thing "ought" to run!

However, I'm with you. Tractors just shouldn't ever have a gas engine. For sure. Takes away their thunder. :>)

Allan

On the way home we were discussing the 460, dad called it a locomotive, I said, "yes with a Volkswagon engine." Gutless wonders, were those post 58 IH gassers.

When I bought the 504, it came with farmland I was buying, and at the time, it was away having it's first engine rebuild, at IH dealer, and at 1,500 hours since new. The vendor wanted to operate the 504 a few days when it came back, wanted to be satisfied he got value for money. We hitched him up to my NH 460 haybine. After 3 days, he said, "Don't keep that 504 any longer than necessary, I never did like the tractor and they haven't made it any better." I decided I best trade that 504 on my new 1066 rather than my old 300. IH dealer was happy, he allowed me $3,000. more than our 300 deal. He got the tractor with 3 point hitch and I kept the usable horsepower.

Just to be sure I was doing this right, I took the 300 and 504 to a field along with 3x16 trailer plow. The 504, fresh off a rebuild after about 25 minutes in 2nd gear started missing, as if the plugs, points, etc. were breaking down. I plowed the rest of the day with 300, mostly low in 3rd gear, and ocasionally letting the TA lever foreward. I thought to myself, this old 35 hp 300 is 2,000 hours into it's 3rd set of pistons and sleeves, and it's doing better than a new rebuilt 45 hp 504. I guess I best heed the advice given. Both tractor had 13.6x38 at that time. So much for post 1958 IH gassers, they were clearly truck engines.

It just runs like a she-dog in heat.

Used it to do chores yeasterday and it ran just fine. Started it up today, let it sit there and warm up for a few minutes.

Went to move it and belched out a cloud of black smoke and went to missing on one cylinder. It'll be missing again in the morning and if I don't stop and clean the plugs it will start missing on more and more cylinders until it will hardly pull itself.

Comon'. Ya gotta have a good diesel fer me don't ya? :>)

Allan

is it always the same plug or all the plugs??

that would narrow it down to a cylinder or a component

Just too darned rich. Carb isn't flooding either; just pumping a lot of fuel.

Allan

I had basically the same experience on an '89 Chevy pickup with Autolite plugs I'd bought from Walmart. I solved my problem with AC plugs from NAPA.

Some one said Autolite plugs from NAPA or any other source are OK, just the ones from Walmart act up.

Walmart used to sell AC and Champion plugs along with Autolite, now all they sell is Autolite. I suspect Walmart put price demands on AC and Champion to where those two brands told Walmart to get lost, then Autolite compromised quality to meed Walmart's demands.

Wouldn't buy a toilet stopper from Wal-Mart.

Have had Champion D-18, D-21 and the Autolite what? 386 I think? All from the local parts house. Not to say that they aren't "low-quality" also tho.

The darned thing didn't run this bad when it was oil fouling before the rebuild.

Haven't tried the ACs yet. Think I'm gonna call Kim's parts man in the morning and order a carb too. I haven't liked that thing from the start. It just shouldn't blow soot like that all the darned time.

Have overhauled it so many times the threads are wearin' off the screws. :>(

Allan

We run AC Delco in our 165 Massey and 1600 Oliver. Not too many problems, although the 165 is starting to foul them more as it is starting to burn oil.

Donovan from Wisconsin

I think you're right. It's over fueling to beat the band.

Black smoke just rolls out of 'er at mid range rpms. Idles good and plenty of wide open power when it isn't missing.

Engine is a 301 out of an 806 and the plugs are carbon fouling is the only thing I can figure.

'Spose it's time for a carburetor. :>(

Allan

• spark plug chart

I'm just tired of continually fixin' the old pooper.

Deisels, ya don't have to mess with. :>)

Allan

Air bleed on the idle and absolutly no adjustment at all on the high side.

Allan

Hurst