The hose has always been close to the belt, even with new mounts. I got the TD later, and remember noting how much farther away the hose was.


W.

The thought did cross my mind when I looked at my TD, that I don't see how new motor mounts will make THAT much of a difference. So it must me that on the SD as compared to the TD, the oil cooler is mounted higher relative to the engine. I wonder if there is a higher rate of engine destruction as a result of failed hoses on the SD over the TD.

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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

This may work as a protector where the hose passes under the PS belt. Not sure if the 1" is the correct size, maybe 3/4" would be better. Edit: Looks like 1/2" may be the best size.

https://www.amazon.com/Aviditi-93933-Repair-Clamp-1-Inch/dp/B0068H4TKQ/ref=sr_1_6?ie=UTF8&qid=1487521108&sr=8-6&keywords=aviditi+repair+clamp

__________________
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

I think the root of the engine mount problem comes from allowing oil and fuel to leak onto the mount. That mount is almost exactly below the primary fuel filter on my 84 SD.

Not long after I bought the car the a hose got nicked by a pulley and made a mess. Fortunately it was in idle warming though I had turned my back on the car while talking to a neighbor.

I noticed the oil dripping from the engine and rushed to shut it down. It's amazing what a quart and half of oil can do to an engine bay including the hood, inner fenders and the DS and top of the engine. I'm so thankful I didn't hop in the car and take off. I could have lost one of the best engines I've ever owned.

I continue to monitor the mount and will add shield to the mount's assembly. I catch all fuel coming from the spin on filter, primary filter and am working diligently to stop all oil leaks, as if.

__________________
84 300SD
85 380SE
83 528e
95 318ic

Both motor mounts on mine seem equally collapsed.

__________________
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

If your lines are too close you can install longer lines to give you some insurance and peace of mind. I essentially did this when I converted to AN fittings and steel braid hose, but others have done it with clamps.

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Current Stable

• 380SL (diesel)
• Corvette C5
• Manx
• Baja Bug
• F350 Powerstroke
• Auburn Boattail Speedster replica

Happened to me too in my 1984 300D. 1 qt left in the pan when my son pulled up after a 600 mi trip and oil everywhere under-hood. A few miles more and the engine would have been ruined. A fan belt had broken, tangled in the p.s. belt and flipped it over so it sat out farther and inverted with the grooves outward like a chain-saw. Cut a small hole in the cooler hose. The motor mounts also might have sagged a bit to help. I cut the new hose 1" longer to keep it away from that evil belt.

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans

Replaced both mounts. Driver's side was more collapsed than the passenger side but I think what really caused the hose to get sawn thru was the fact that the center inner metal portion of the passenger side mount has almost completely separated from the rubber. Under the right torque conditions I'm pretty sure it would allow the right side mount mount arm to rise up and the left side of the engine drop down, putting the PS belt on to the hose.

__________________
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

Passenger side motor mount.

Attached Thumbnails

 

__________________
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

New mounts added about 1" more of clearance. Still much less clearance than on the TD. Haven't decided how to protect the hose yet. Tried a galvanized water pipe repair clamp but the hose is curved close to the PS belt so I didn't like how it dug into the hose at either end of the repair clamp. Perhaps I'll bend a piece of thinwall conduit, cut off the outside of the bend and hose clamp it over the oil cooler hose.

__________________
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

Put 3 hose clamps around the cooler hose directly below the PS belt so if it contacts the hose in the future, at least there will be a small measure of protection.

__________________
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

Put 3 hose clamps around the cooler hose directly below the PS belt so if it contacts the hose in the future, at least there will be a small measure of protection.

__________________
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