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  #1  
Old 10-16-2011, 11:39 AM
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Join Date: Jul 2010
Location: Perdido Key, FL
Posts: 66
1987 300sdl//Oil Leak from Shut Off Valve

Thought I had the typical oil leak from the IP seal, but think now it's coming off the Shut Off Valve....

Read a thread mentioning this a couple weeks ago, but now can't find it again.

Would this be a simple "washer" or "seal" replacement, or is it more involved than that? Not leaking a lot, but it does work it's way down and start to pool in the engine mount....

Lance-

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File Type: pdf Shut Off Valve.pdf (36.0 KB, 137 views)
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  #2  
Old 10-16-2011, 12:22 PM
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Posts: 18,350
It's probably a failed shut off valve diaphragm. You should replace it soon before you suck oil completely thru your vacuum system.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #3  
Old 10-16-2011, 08:57 PM
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Location: Perdido Key, FL
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How difficult is changing out the diaphragm? Is there a diaphragm kit out there, or is it the whole assembly R&R?

Thanks.
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  #4  
Old 10-16-2011, 09:01 PM
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Not very familiar with your engine but I think you'll need the whole shutoff valve.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #5  
Old 10-16-2011, 09:03 PM
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Join Date: Jul 2010
Location: Perdido Key, FL
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Cheers....appreciate the info.

Lance-
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  #6  
Old 10-16-2011, 10:12 PM
92 300D 2.5L OBK #59
 
Join Date: Feb 2007
Location: Central FL
Posts: 1,108
Here's a couple of links:
PeachPartsWiki: Shut off valve replacement

PeachPartsWiki: Injection Pump Stop Lever Oil Leak Fix
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92 300D 2.5L OM602 OBK #59
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  #7  
Old 10-17-2011, 12:48 PM
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Location: Eastern TN
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There's an o-ring between the shut-off actuator and the IP.

It common for the control rod sensor socket inboard of the shut-off actuator to leak. That's a leak you'll have to live with because the o-ring is replaced from inside the IP. You can slow the leak by smearing RTV around the base of the socket.

Sixto
87 300D
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  #8  
Old 10-18-2011, 10:22 AM
MPH MPH is offline
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Join Date: Aug 2007
Location: NC
Posts: 54
Fuel filter bolt o ring worked for me

I resealed mine by using the o ring that goes on the fuel filter "bolt". I removed the lever. It fit the shaft perfectly and has not leaked oil in 4 years since I replaced it.

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