Do the other things I suggested first — see if it actually closes when you (or
someone else) turns the key. If it does check to see if any electrons are
flowing through it (if fuse isn’t good). If not push it closed and see if
electrons flow. If no electrons flow, clean the Contacts. If it
Thanks guys. I will try cleaning the points!
Sent from my iPhone
> On Aug 3, 2021, at 7:14 AM, Jaime Kopchinski via Mercedes
> wrote:
>
> Exactly! If you want to get fancy, close the points with your finger and
> check the resistance with a meter across them. Should be 0 or nearly 0.
> If
Exactly! If you want to get fancy, close the points with your finger and
check the resistance with a meter across them. Should be 0 or nearly 0.
If it's higher, from a few ohms up to no connection, that's your issue.
Check again after cleaning.
Jaime
On Mon, Aug 2, 2021 at 10:42 PM Dimitri
It’s a common “cube” style relay as I recall. You can remove it and carefully
pry the cover off with a small flat blade screwdriver to expose the armature
and contacts. Clean the contacts with some emery cloth and DeOxIt or other
suitable contact cleaner, then install it with the cover off so
After I pry open as Jaime suggested?
Sent from my iPhone
> On Aug 2, 2021, at 9:03 PM, Buggered Benzmail via Mercedes
> wrote:
>
> Have someone turn the key while you watch the relay to see if it closes. If
> it closes then check the contacts to see if they are corroded. If it doesn’t
>
Is this like points or something? Forgive me for my ignorance!
Sent from my iPhone
> On Aug 2, 2021, at 9:11 PM, Jaime Kopchinski via Mercedes
> wrote:
>
> Pry the relay open and clean the contacts with emery cloth and deoxit.
> Thats most likely the issue.
>
> Jaime
>
>
>> On Mon, Aug 2,
Pry the relay open and clean the contacts with emery cloth and deoxit.
Thats most likely the issue.
Jaime
On Mon, Aug 2, 2021 at 2:31 PM Dimitri Seretakis via Mercedes <
mercedes@okiebenz.com> wrote:
> My brother’s 78 240D with series type plugs doesn’t start without
> excessive cranking. The
Have someone turn the key while you watch the relay to see if it closes. If it
closes then check the contacts to see if they are corroded. If it doesn’t close
push it closed and see if that sends electrons to the glow plugs.
--FT
Sent from iPhone
> On Aug 2, 2021, at 2:31 PM, Dimitri
What's the cost of the kit to upgrade to the newer parallel style? Kit
includes the new relay and plugs.
Max Dillon
Charleston SC
Aug 2, 2021 2:31:30 PM Dimitri Seretakis via Mercedes :
> My brother’s 78 240D with series type plugs doesn’t start without excessive
> cranking. The strip fuse
> Is it reasonable to assume [relay’s] bad at this point? Can it be tested?
Yes, and yes. Also yes, it can sometimes be repaired. Re-soldering
and possibly replacing internal capacitors can do wonders for these
middle-aged electronics. I've resurrected numerous such items in
the past. For
Since a relay is a pretty simple electrical switch that uses a small
current to close a larger circuit [ie starter solenoid] how about just
finding an off the shelf relay that has the same values for both the low
circuit and the high power circuit?
I wager the glow plugs don't care as long as they
My brother’s 78 240D with series type plugs doesn’t start without excessive
cranking. The strip fuse appears intact, the plugs as well but we replaced them
for good measure. Turns out there appears to be no power to the strip fuse so
I’m guessing the relay is bad? I don’t want to just throw
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