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Discussion Topic:
2 more rookie questions
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Maxthedog1 |
04-27-2013 @ 3:59 PM
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Member
Posts: 24
Joined: Nov 2012
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I decided to change the oil on my recently acquired 39 Standard coupe with the 85 hp engine. According to the owners manual as well as a MoToR book, the crankcase capacity is 5 quarts. But after adding that amount the dipstick is showing over-full. Did I add too much? If so, do I need to drain some out, is it OK to run a bit overfull, if in fact the dipstick is correct? Second question: the air filter has been replaced with a paper type filter. So far, three auto parts stores can't find anything to match the size. Does anyone happen to know a brand and/or part number that will fit? Thanks to all.
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ford38v8 |
04-27-2013 @ 7:12 PM
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Senior
Posts: 2758
Joined: Oct 2009
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The crankcase capacity is 5 Imperial qts, which is equal to 4 US qts. The Ford manual was apparently written in England. Your paper filter is not original to the car, so no answer is possible. If the original filter housing was modified to accept a paper filter, it likely will cut down the air flow considerably, causing an over-rich fuel/air ratio. The original filter material for the correct unit can be duplicated with use of a copper Chore Boy unfolded at the weld.
Alan
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supereal |
04-27-2013 @ 7:36 PM
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My friend Alan has given you the answer to the oil fill question. If you have a canister type oil filter, five US quarts s correct. Without, four is right. We have converted a number of oil bath air filters to modern paper elements. Most use the NAPA 8210 element. There have been no complaints of air fow or mixture problems. If you wish, I can post the instructions for the conversion that uses the NAPA filter.
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joe b |
04-28-2013 @ 6:18 AM
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Posts: 389
Joined: Oct 2010
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Super. Yes please post the air filter instructions. I have wanted to do this conversion. In your opinion does the paper filter the air much better? It seems to me it would. Any cons to this? Thanks
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supereal |
04-28-2013 @ 7:17 AM
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I will post it as soon as I find the file. As to filtering, the paper, actually a specially woven material, is the media used by today's ultra precision engines. The oil bath cleaner works by flowing the air over the oil pool. The inertia of the air is supposed to drive it into the pool. It is still used in some heavy equipment. Today, large Diesel engines commonly use a "cyclone" system that separates airborne material. "Paper" filters are highly engineered to be efficient, but not restrict flow. You can bet that if there was a better techology, you would see it in general use.
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kubes40 |
04-28-2013 @ 7:23 AM
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With all due respect guys, I would like just one person to offer proof that Ford specified four US quarts to fill the crankcase. I see a lot of theories put forth but no proof. On the other hand, I have seen the engineering drawings of the pan and the capacity is clearly specified to be five US quarts. Do you guys really beleive that all the ford manuals were written out of the US and no one caught that through the many years they were in print? The engineering drawings are the only proof we have to the capacity requirements.
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trjford8 |
04-28-2013 @ 8:27 AM
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Every flathead I ever owned used 4 quarts unless equipped with a filter.I had a couple of real nice rouge type cars(without filters) and neither used 5 quarts. Dipstick showed full when 4 quarts were put in the motor.
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supereal |
04-28-2013 @ 10:12 AM
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I am attaching the air cleaner conversion sheet. This was designed for the 42-48 filters, but can be adapted for others.
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oldford2 |
04-28-2013 @ 1:00 PM
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Posts: 275
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Bob, The problem with this modification to an original oil bath filter is that it destroys the chance to restore it to original. I have seen no proof that the paper filter works better than an oil bath original. Original oil bath filters are scarce and hard to find so let's try and save a part.. John
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40guy |
04-28-2013 @ 1:13 PM
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Posts: 270
Joined: Oct 2009
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Kubes40: THANK YOU. FINALLY. I have been stating this position for years. In fact, a year or so ago there was a lengthy discussion on here about that very same subject with varying opinions.
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