Anonymous-0
Well-known Member
How hard/expensive would it be to put a 301 gas out of a 715 combine in a 460 diesel? I know pullers do it but i will need my hyd and power steering live power sheet metal and on and on?Bud.
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Anonymous-0
Well-known Member
Had a 460 utility years ago, put a D301 from a 715 in it. Mainly need to change all front timing cover and plate parts to fit back in tractor rails. You will need gas parts as diesel will be different. Mine was diesel, both combine and tractor.
jd plowboy
Member
why dont you let me sell you a 460 diesel engine. i put a 301 in a 460 diesel and had to change the timing cover and plate, manifold, back plate of motor, water pump. the only thing i could use off the diesel was the fan blade and the back plate.
Anonymous-0
Well-known Member
If you can get it started the diesel runs very well but after starter work huge batrys and cables valve job pump work injectors glow plugs wireing frost plug block heater the ford pickup and chain works best!I have a frind with a gas 301 and i would like a tractor i could start alone.Bud.
If you weren't so far away I would trade you my 460 gas for your diesel
If you are mechanical and want to spend some money at the salvage yard it is not bad, a lot of switching parts here and there. You may be better off selling "old smokey" and buying the tractor you want. Diesel to diesel or gas to gas combine engine to tractor is easiest. Diesel to gas, combine to tractor is a bit more involved, but can be done. As long as you are having fun, and spending your money, have at it.
If you are mechanical and want to spend some money at the salvage yard it is not bad, a lot of switching parts here and there. You may be better off selling "old smokey" and buying the tractor you want. Diesel to diesel or gas to gas combine engine to tractor is easiest. Diesel to gas, combine to tractor is a bit more involved, but can be done. As long as you are having fun, and spending your money, have at it.
jd plowboy
Member
i put a 301 gas in a diesel 460 and it wasnt any harder than a gas. just have to buy the needed parts from a gas that i all. i used the back plate and fan blade from my diesel.
Owen Aaland
Well-known Member
A lot of times the hard starting is due to too much valve recession in the cylinder head. If the valve job was just refacing the valves and seats it can actually be worse afterwards than it was before. Minimum recession is .003" from the head surface. the closer the valve heads are to that spec the easier it will start. Usually that means installing new seats and sometimes replacing the valves.
If you're going gas-for-gas, then the project is simple.
Take both engines out and set them side-by-side. Strip all the combine stuff off the combine engine. Put all the tractor stuff off the tractor engine on to the combine engine. Put the combine engine in the tractor.
The blocks are the same on the outside. Everything will bolt right up like it was meant to be there.
Take both engines out and set them side-by-side. Strip all the combine stuff off the combine engine. Put all the tractor stuff off the tractor engine on to the combine engine. Put the combine engine in the tractor.
The blocks are the same on the outside. Everything will bolt right up like it was meant to be there.
Anonymous-0
Well-known Member
Owen,I have heard that before but it's hard to comperhend .003 making much of a differance? At the price of a head or seats and valves how do i know if im on the right track or just pumping more money in a sleeping horse? Bud.PS, Thanks to all!! Bud.
Hey Bud,
Toss the 6 cylinder tractor and Go buy a 4 cylinder 400-450. Then U would be happy. According to specs. The 460 and the 400-450 are the same horsepower.
Granted the "stinky diesel" may make more power, when it decides to start. But reliability is a good thing!!
Joe J in Mt Pleasant.
DJ Jr...
Toss the 6 cylinder tractor and Go buy a 4 cylinder 400-450. Then U would be happy. According to specs. The 460 and the 400-450 are the same horsepower.
Granted the "stinky diesel" may make more power, when it decides to start. But reliability is a good thing!!
Joe J in Mt Pleasant.
DJ Jr...
I didn't notice the diesel part....
If that's the case, you need pretty much everything between the bell housing and front bolster off a gas 460 to make the swap.
You should be able to find a D282 that will bolt right in place of the 460 diesel engine... AFAIK whatever diesel the 460 had was just a smaller bore version of the D282.
460 diesels are rare though... I'd hate to convert one to gas with all the gassers floating around already...
If that's the case, you need pretty much everything between the bell housing and front bolster off a gas 460 to make the swap.
You should be able to find a D282 that will bolt right in place of the 460 diesel engine... AFAIK whatever diesel the 460 had was just a smaller bore version of the D282.
460 diesels are rare though... I'd hate to convert one to gas with all the gassers floating around already...
Fritz Maurer
Well-known Member
So the .00000003% loss of a point is worse than the
valves leaking?
valves leaking?
Owen Aaland
Well-known Member
The combustion chamber on those engines is mostly in the precups under the injectors. At .003" there is little added area between the nearly flat piston and cylinder head. If both of the valves are near the .048" maximum recession it represents a rather large percent of increase in volume between the head and piston. That will result in less air being pushed into the precup and lowering the compression which results in lowering the temperature of the compressed air leaving you with less heat to ignite the diesel fuel.
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