It's not so much being careful as being able to get the hex screws
off/on the pump as they are not visible and you have to contort a bit to
reach them -- just fiddly.
You want to clean the pump well, be careful not to get schmutz in the
engine, and put loctite on the center screw (ask me how I know!).
It also helps to have a little hold-down thing (I made one from a small
block of wood screwed to another piece of wood) to compress the spring
while putting it together.
Getting the fan off/on is the worst part of the job, also fiddly.
--FT
On 2/20/18 3:43 PM, Andrew Strasfogel wrote:
Found one for $19.95US. My tech said the same thing - gotta be careful.
https://www.ebay.com/itm/New-Febi-Vacuum-Pump-Repair-Kit-Mercedes-220-Benz-240D-123-Chassis-300D-220D-115/361457322129?fits=Make%3AMercedes-Benz&hash=item5428890891:g:3-gAAOSwk1JWgNzg&vxp=mtr
On Tue, Feb 20, 2018 at 3:40 PM, Floyd Thursby via Mercedes
<mercedes@okiebenz.com <mailto:mercedes@okiebenz.com>> wrote:
That is not a hard job, but somewhat fiddly, I can probably now do
it in less than an hour. The kit is cheap, this is pretty much a
wear item.
--FT
On 2/20/18 3:27 PM, Andrew Strasfogel via Mercedes wrote:
I went away for 4 days and when I returned, the car shut off
normally.
For a day... Today it ran on again, so I dropped it at the shop.
Diagnosis: Vacuum pump diaphragm was leaking oil, causing
attached hose to
swell and intermittently fail. The tech was able to clean it
off and make
it tight again, but this will likely recur, so I need to
replace this part.
https://www.ebay.com/itm/VACUUM-PUMP-DIAPHRAGM-MERCEDES-300-D-123-130-W123-03-1979-11-1985/272409085197?hash=item3f6cd8c50d:g:IEIAAOSwmLlX~IX~&vxp=mtr
<https://www.ebay.com/itm/VACUUM-PUMP-DIAPHRAGM-MERCEDES-300-D-123-130-W123-03-1979-11-1985/272409085197?hash=item3f6cd8c50d:g:IEIAAOSwmLlX%7EIX%7E&vxp=mtr>
On Sun, Feb 18, 2018 at 10:28 AM, MG via Mercedes
<mercedes@okiebenz.com <mailto:mercedes@okiebenz.com>>
wrote:
OK Do a Google search for Diagnosing Mercedes vacuum
shutoff. It's all out
there in exhausting detail. If you don't understand what
you find then take
it in and get it done.
Andrew Strasfogel via Mercedes wrote:
Well, I will probably have to do that, but I was
looking for some guidance
on how to diagnose it myself.
On Feb 18, 2018 7:36 AM, "MG via Mercedes"
<mercedes@okiebenz.com <mailto:mercedes@okiebenz.com>>
wrote:
shortcut all the talk and take it to your indie and
have him fix it.
Andrew Strasfogel via Mercedes wrote:
My '83 300TD won't turn off except by manually
pressing the shutoff under
the hood.
Vacuum locks are OK. I've BTDT but too long
ago to remember. Any
suggestions on how to go about diagnosing the
cause?
Andrew
1983 300TD
362 k
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--FT
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