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  1. #1

    Default Diesel starting trouble -- compression?

    I am considering buying an old diesel tractor that the owner says the "motor runs fine but needs a sniff of ether" to get started. I know regular use of ether can be very harmful to the engine, but it very likely that the hard starting is due to low compression and the engine will soon be needing an overhaul? I do not know the condition of the glow plugs. Thank you for your help and all the great advice you all have given me in the past.

  2. #2

    Default Diesel starting trouble -- compression?

    I am considering buying an old diesel tractor that the owner says the "motor runs fine but needs a sniff of ether" to get started. I know regular use of ether can be very harmful to the engine, but it very likely that the hard starting is due to low compression and the engine will soon be needing an overhaul? I do not know the condition of the glow plugs. Thank you for your help and all the great advice you all have given me in the past.

  3. #3
    Super Member greg_g's Avatar
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    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: Diesel starting trouble -- compression?

    I see one question mark in that post George, but I can't quite make out what the actual question might be

    //greg//

  4. #4
    Super Member greg_g's Avatar
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    JD3720 Cab, 300X loader with 4-in-1 bucket

    Default Re: Diesel starting trouble -- compression?

    I see one question mark in that post George, but I can't quite make out what the actual question might be

    //greg//

  5. #5

    Default Re: Diesel starting trouble -- compression?

    I should have proof-read my question better. Since it needs ether to start, is this an indication that compression is low?

  6. #6

    Default Re: Diesel starting trouble -- compression?

    I should have proof-read my question better. Since it needs ether to start, is this an indication that compression is low?

  7. #7
    Veteran Member bluechip's Avatar
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    Default Re: Diesel starting trouble -- compression?

    Quite possibly. only way to know is do a compression test...

  8. #8
    Veteran Member bluechip's Avatar
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    Default Re: Diesel starting trouble -- compression?

    Quite possibly. only way to know is do a compression test...

  9. #9
    Epic Contributor Soundguy's Avatar
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    Default Re: Diesel starting trouble -- compression?

    In general, a diesel that is needing ether to start is getting weak .. however.. I've seen brand new diesels that are cold hearted dogs if their glow/thermostart/preheat systems don't work.. fixing that turns them into reliable starters.. You might want to chaeck that glow system..
    though a compression test will be a very good diagnostic tool as well... in fact.. I'd want both, unless just quickly checking the glow got it going good.

    Soundguy

  10. #10
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Diesel starting trouble -- compression?

    In general, a diesel that is needing ether to start is getting weak .. however.. I've seen brand new diesels that are cold hearted dogs if their glow/thermostart/preheat systems don't work.. fixing that turns them into reliable starters.. You might want to chaeck that glow system..
    though a compression test will be a very good diagnostic tool as well... in fact.. I'd want both, unless just quickly checking the glow got it going good.

    Soundguy

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