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07-23-2015, 10:52 AM | #1 |
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Dipstick length
I have an 8BA block in my hot rod, and not sure, but think a Merc pan. (are they different?) When I change the oil, adding 4 qts. plus one for the filter (full flow system), shows a quart low on the dipstick. Don't want to over fill it, and wonder if I have the correct dipstick.
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07-23-2015, 11:41 AM | #2 |
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Re: Dipstick length
The 1951 Mercury Manual Vol. 1 shows the following on page34 under the heading CAPACITIES.:
Engine Oil Dry (including filter)... 6 qts. Refil........................ 5 qts. This leads me to believe that the 49-51 Merc oil pan is larger than the 8BA Ford pan which hold 4 qts. plus 1 more for the filter. ( I think) Last edited by 19Fordy; 07-23-2015 at 11:49 AM. |
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07-23-2015, 12:45 PM | #3 |
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Re: Dipstick length
My Merc pan eqquiped 8BA requires 6 quarts to satisfy the dipstick.
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07-23-2015, 01:01 PM | #4 |
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Re: Dipstick length
My 51' Merc. oil capacity is 5 qts. with the stock filter.
For reference the full line on my dip stick is 14 5/8" from the felt seal washer. There are 3 different over-all length dip sticks and two different tubes (depending on year)
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07-23-2015, 01:22 PM | #5 |
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Re: Dipstick length
The last dipstick I ran across was 5' 4" and a perfect void surrounded by a sphincter muscle.
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07-23-2015, 01:37 PM | #6 |
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Re: Dipstick length
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07-23-2015, 02:39 PM | #7 |
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Re: Dipstick length
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07-23-2015, 03:04 PM | #8 |
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Re: Dipstick length
somehow, I knew this post would elicit some 'non-Ford' response! LOL
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07-23-2015, 03:34 PM | #9 |
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Re: Dipstick length
My dipstick, errrr...the CAR'S dipstick measures 13 5/8", top washer to Full mark, and the pan tube measures 7 1/2" to the pan end flange.
This combination would be..... ?? |
07-23-2015, 06:07 PM | #10 |
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Re: Dipstick length
I ran in to a similar issue, 52 Merc motor, I filled the oil to the full mark on stock dipstick.
All was fine, then I bought a chrome one for an 8BA, put in in and the oil reads about 3/8" above the full mark, so I took a dremel, and put another mark on it. So the Merc pan must hold more than a ford. |
07-23-2015, 06:36 PM | #11 |
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Re: Dipstick length
With the various pans, tubes, and sticks you can come up with several combinations that may not give you a good reading. I think it's best to first i.d. the pan then completely drain the engine and mop out the canister. Add 5 (or 6 if Merc pan) and mark your stick accordingly. The engine we put in my AV8 started life as a Merc but has a center sump Ford pan with a 2CM dipstick. I can't see why you would change the oil without doing the filter and cleaning out the canister, anyway.
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07-24-2015, 05:26 AM | #12 |
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Re: Dipstick length
Oil capacity is 5 qts. with filter on Merc's. Don't know how you are assuming it's 6 qts.
The reason for different length dip sticks and tubes is to compensate for the different shaped oil pans that would change the oil level but still have the same oil capacity.
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07-24-2015, 06:20 AM | #13 |
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Re: Dipstick length
I have 51 mercury with no filter and was leaking oil out pan gasket was wet.
I changed the oil and put 4 quarts and the mark was way off. I marked the stick with grind mark on bench grinder. That's my 2 cents. |
07-24-2015, 07:06 AM | #14 |
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Re: Dipstick length
Ok, so how do I ID the pan?
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07-24-2015, 07:14 AM | #15 | |
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Re: Dipstick length
Quote:
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07-24-2015, 09:06 PM | #16 |
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Re: Dipstick length
Oh, that's easy. Someone here called it the gift site that keeps on giving because it gets used so much. Move your cursor to the "?" in the photos on this site:
http://www.flatheadv8.org/bellhousing.pdf Be careful with overfilling. If the crank throws dip into the oil you'll start burning and leaking oil. Lonnie |
07-25-2015, 06:51 AM | #17 |
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Re: Dipstick length
For some reason the link isn't working on my computer. Nothing pops up when I put the curser on it. I have a #22/23 pan. Do you know which pan this is and the capacity?
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07-25-2015, 07:02 AM | #18 |
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Re: Dipstick length
Here is an idea. Find a friend with an 8ba and measure the length of the dipstick from top to full line. Then measure the tube and figure out how far the full mark is below the top of the pan or bottom of block. I think this will work in every instance as the full level is a certain distance below the bottom of the crank or block. Of course given that logic it could change a bit with a stroker but a 1/2 inch stroke would only change it a 1/4 inch.
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07-25-2015, 09:45 AM | #19 |
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Re: Dipstick length
OK Thanks, Bink..... I definitely have a Merc pan. Picture 26... I
have the three studs on the back So oil change will be 5, plus full flow filter. Thanks all ! |
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