On May 9, 7:51=A0pm, biodieselbob <bob.cou...@[EMAIL PROTECTED]
> wrote:
> Still have (and working on) my 1976 300d. =A0Just acquired 1982 300td.
> WOW!! =A0Big difference in starting engine between the two. =A01982 just
> starts with a turn of the key once the glow plug lite goes out. =A01976
> has to be cranked over a few times. =A0Run about the same amount of
> petro and biodiesel in both. =A01982 has 223k =A0miles, 1976 shows 80k,
> but more likely 180k miles or 280k miles (most likely). =A0Replaced both
> fuel filters, as well as oil and air on 1976. =A0Replaced valve cover
> gasket on 1976. =A0Checked valve clearances while cover was off, all
> clearances are at least the .10mm and .30mm as indicated on cold
> check.
>
> Now the questions:
>
> 1. Would getting the valve clearances EXACT help the 1976 start
> quicker? =A0(most clearances are more than spec).
Not sure what exactly you mean by most clearances are more than spec,
as that could mean they are off by a hair or by a mile. Also, if you
had the valve cover off to check them, why not adjust then at the same
time? Valve clearance is a factor in starting, but unless they are
off by quite a bit, I would expect it to only make a signifcant
difference in starting at colder, winter temps.
>
> 2. Why does the 1982 start SOOO much easier than the 1976?
Because something is wrong with the 76.
>
> 3. Should the 1976 have to be cranked so much to start?
No
>
> 4. What can be done to 1976 to make it "less cranky"?
My first suspicion would be the glow plugs. Next, compression.
>
> Note to TG - great info you gave me - very informative and helpful.
>
> Thanks in advance!
> Bob
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