300 tdi Cracked Oil Fill Cap - OK to Drive? - Defender Source
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  #1  
Old June 15th, 2010, 10:40 PM
Shearpin
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Henry Stinson
'73 Series III SWB '84 110 tdi
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300 tdi Cracked Oil Fill Cap - OK to Drive?

One of those nights - while out doing an evening oil check on the 300tdi I managed to crack the oil fill cap. It will lock back into place but if I put pressure on the knurled top I can lift it slightly with the crack running between the large knurled top and smaller bottom which fits into the hole in the valve cover.

Question is - the cap says "non-vented" - how much pressure would this cap be under at highway speeds? My fear is it will either blow oil out the cap or split in half and the lower half will fall in on the valve train. It's to late for the neighbors to turn it over now and have a look. While I have to get to work tomorrow - I commute approx 50 miles - it isn't worth my motor. Anyone know of a temporary replacement from another make / model?

Thanks in advance...
Henry
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  #2  
Old June 15th, 2010, 10:53 PM
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Scott Preston
1969 Ser IIA Tdi Hybrid
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oil cap

On my last trip I checked and topped off the oil at my garage before I left and forget to replace the cap. I started smelling oil about 150 miles into the trip and pulled into a gas station to check it out. I realized I forget to replace the cap and left it on my work bench. Very little oil had even come out. I got a roll of tin foil, folded it over a few time covered the fill hole and used the rubber sound mat to hold it into place. I drove another 1500 miles before I got a replacement.

Don't over think it. You will not damage anything driving 50 miles.

Cheers
Scott
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Old June 15th, 2010, 10:55 PM
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Eric
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  #4  
Old June 15th, 2010, 10:56 PM
Shearpin
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Henry Stinson
'73 Series III SWB '84 110 tdi
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Hey - thanks for the reply. I just wasn't sure how much pressure these were subjected to....

Henry
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