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Old 09-23-2011, 05:03 PM
Goodentight
 
Join Date: Mar 2006
Posts: 218
'82 300TD Vacuum Shutoff

I'm trying to fix a pesky oil leak at my vacuum shutoff on the injection pump. Do you have to remove the oil filter housing to get the thing out? I even tried sucking it down with the mighty vac and I still can't seem to get it out...

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Old 09-23-2011, 05:06 PM
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Not so amused
 
Join Date: Apr 2010
Location: West Quebec
Posts: 4,025
No it's tight but you can do it with everything in place.

Are you sure you have all four screws out?

I don't understand how you mean you used the MityVac....
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2002 e320 4matic estate│1985 300d│1980 300td
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Old 09-23-2011, 06:37 PM
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It WILL come out without removing anything else, but you have to wriggle it through just the right path. It helps to push the heater hose toward the engine block as it has to squeeze past there. Remember which way it came out, as the new one has to be wriggled back in the same way.

I fiddled with it for about five minutes before I got it out, on my '81. If I hadn't been told it would come out I wouldn't have believed it could. Then suddenly I got just the right angle, and it did.

Make absolutely sure you hook the lever inside the IP with the hook on the end of the new valve, or the engine will rev up uncontrollably when you re-start it. If you attach a Mity-Vac and pump it up it should hold itself in place before you put the bolts in; if it falls off it's not hooked in properly. I took the air cleaner assembly off so I could slap a DVD case across the turbo inlet and block the airflow if the engine tried to run away.
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Old 09-23-2011, 07:34 PM
Goodentight
 
Join Date: Mar 2006
Posts: 218
Ha ha. That would have been funny if I still had one of the bolts in place. No, I had the bolts out and even had the holding plate off, just couldn't get the valve to fit out past the oil filter housing. I used the mityvac on the vacuum port so that it pulled the arm in giving a little more play. I finally got it out to the back of the filter housing. It's all back in place and appears to have fixed the leak. No uncontrollable revving and it shuts off as it should.

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