The Ford Barn - View Single Post

tubman · 08-21-2020, 06:06 PM

Make sure the oil fill tube is the stock height. Sometimes they are cut down for "looks". I did this to my '51 and replaced the stock unit with a really attractive chrome tube about 6" long. The next time I checked the oil, the right side of the engine was covered with oil. Long story short? The oil fill tube has to be that long in order to get it up in the airflow over the engine. Shortening it causes it to be down in the draft area of the fan which creates a low pressure are around the oil filler cap and makes the road draft work backwards from the way it should.

It's not a real common problem, but it happened to me. Replacing the short filler tube with a stock length one solved my problem.

It also a good idea to use a stock filler cap as mentioned above.

08-21-2020, 06:06 PM	#5
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,316	Re: 52 f1 flathead, oil fill Make sure the oil fill tube is the stock height. Sometimes they are cut down for "looks". I did this to my '51 and replaced the stock unit with a really attractive chrome tube about 6" long. The next time I checked the oil, the right side of the engine was covered with oil. Long story short? The oil fill tube has to be that long in order to get it up in the airflow over the engine. Shortening it causes it to be down in the draft area of the fan which creates a low pressure are around the oil filler cap and makes the road draft work backwards from the way it should. It's not a real common problem, but it happened to me. Replacing the short filler tube with a stock length one solved my problem. It also a good idea to use a stock filler cap as mentioned above.