Tvo

mf690

What is the correct mix for tvo and can you use kerosene instead. Have the chance of of fergie 20 . But if getting fuel is hassle might let go.

Slidey

There is a thread on here a few years ago asking the smae question.

Have a search for it.

corkcomp

its a mix of petrol and kerosene (and no more!) the concenrtation of petrol required depends on a few things - mainly how hot you run the engine, if the vapouriser is in good condition, how long its likely to be left idling at low revs and how long its left warm up on petrol after starting... i use 5 parts kero to 1 part petrol but for road runs or if your not familar with tvo tractors id go with 4:1 as start.

mf690

That sounds simple enough . I'll take on the old fergie and see how much other work it needs.
Thanks for the advice

marlyman

There must only ever be 2 ingredients in TVO

Petrol (unleaded is absolutely fine for a Ferguson tractor) 98 Octane
28 Second Heating Oil 20 Octane
Aim for an Octane value between 55 and 70

55 if doing very hard work
70 if doing topping and the like
To give you some idea of the sums:-

1 petrol and 1 heating oil comes out at 59 Octane
2 petrol and 1 heating oil comes out at 72 Octane
1 petrol and 2 heating oil comes out at 46 Octane
Petrol on its own is suitable for road runs (with the heat shield removed).
Octane is not the only factor, but is provides a good guide line

Diesel fuel is designed to cause ignition by compression and will encourage pinking. It is not designed to burn in TVO tractors, and no upper cylinder lubricant is required in these tractors, so do not use anything other than petrol and heating oil.

Using fuel which does not burn completely will destroy the lubricating properties of the oil and that (in a Ferguson TE tractor) will result in wear to the cam shaft bushes and then loss of oil pressure from cam shaft bushes. Loss of oil pressure will, then result in damage to the crank shaft. Lubricating oil in a TVO tractor's engine should be changed according to the Tractor Instruction book.

the above is plagerised but i assure you it is the only correct formula to get as near to tvo a spossible. and i add a little two stoke oil to git it the right stink.

corkcomp

as a matter of interest marlyman, do you regularly run / drive TVO burning tractors? the reason I ask is I've seen that exact paragraph above on a UK website last year and its a bit off IMO... any tractor with working vapouriser / shield and a means of keeping water temp high (either radiator shield or correct thermostat) is well capable or burning 4 parts kerosene + 1 part petrol...

marlyman

corkcomp wrote: »

as a matter of interest marlyman, do you regularly run / drive TVO burning tractors? the reason I ask is I've seen that exact paragraph above on a UK website last year and its a bit off IMO... any tractor with working vapouriser / shield and a means of keeping water temp high (either radiator shield or correct thermostat) is well capable or burning 4 parts kerosene + 1 part petrol...

now it did say it was plagerised. it from fofh.co.uk. these guys do know what they are on about. and if i was giving info to the op or anyone i did not know this is the formula i would give them to work on all TVO tractors. its a good balance of basic principles. Point of note : Tvo was 78 octane when you could get it, so the nearer to this figure the better with the right lube properties

To answer your question i do run in road runs with a 35 4 cyl TVO. and i mowed with it this year.

I do not use the formula above. its a bit of do as i say not as i do.

corkcomp

marlyman wrote: »

now it did say it was plagerised. it from fofh.co.uk. these guys do know what they are on about. and if i was giving info to the op or anyone i did not know this is the formula i would give them to work on all TVO tractors. its a good balance of basic principles. Point of note : Tvo was 78 octane when you could get it, so the nearer to this figure the better with the right lube properties

To answer your question i do run in road runs with a 35 4 cyl TVO. and i mowed with it this year.

I do not use the formula above. its a bit of do as i say not as i do.

what formula do you use yourself as a matter of interest? it looks to me like the formula given on that site is a bit of "for dummies" formula.. most people, once they get to grips with TVO will soon learn what works and how to avoid wetting plugs etc...

marlyman

here is what i use - i do not recomment it for anyone else :-)

for working/road runs or constant use
3 gallons kero
1.5 gallons petrol
1.5 whiskey shot of engine oil

for stopping / staring work
3 gallons
2 gallons petrol
1.5 whiskey shot of engine oil

corkcomp

fair enough, each to their own:D Use of oil isnt recommended usually due to fouling of plugs etc but if your using that high a petrol ratio it is probably no harm.. on a mix of 4 or 5 parts kero to 1 petrol there would already be suffficient lubrication in the kero

marlyman

the oil is only for the smell - not for lubrication. this can be interchanged for 1.5 shot of diesel for a different pong.