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04-28-2014, 10:52 AM | #1 |
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Join Date: May 2010
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8BA cooling system drain
The 8RT block has an area just inside the lower section of the water pump. See photo. This area accumulates debris and you cannot drain all the water out of the block because of it. Anyone drill and tap this area for a block drain ? Thank you Fordbarners.
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04-28-2014, 11:03 AM | #2 |
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Join Date: May 2010
Location: capemaynewjersey
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Re: 8BA cooling system drain
I had an 8rt that cracked in that areca It was repairable A drin is good idea goodluck
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04-28-2014, 11:08 AM | #3 |
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Location: Star, MS
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Re: 8BA cooling system drain
There is a hole next to the lower pump bolt (plugged w/sediment in your pics) that lines up with a hole in the pump that drains that area into the lower hose.
I have a 59 block that has threaded holes in the side of the block there that can accept a plug or a drain petcock. |
04-28-2014, 12:16 PM | #4 |
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Location: Oshkosh, Wi
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Re: 8BA cooling system drain
That's the problem. The hole clogs and that side of the block will not drain. I see no problem with drilling and tapping for a drain on the outside of the block.
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04-28-2014, 01:38 PM | #5 |
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Re: 8BA cooling system drain
Thank you Fordbarners. I saw the plugged hole, and cleaned it out. It should drain fine out of there, as it is the lowest place in the front of the block. Just have to remember to clean it out regularly
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04-28-2014, 01:55 PM | #6 |
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Re: 8BA cooling system drain
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04-28-2014, 05:11 PM | #7 |
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Location: NM
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Re: 8BA cooling system drain
I can't say on the older cars, but on all the 48-52 trucks the engine leans back at a 3 - 4 degree angle, so the low point is at the rear of the block. The blocks accumulate a lot of crap back there, I think a drain back there would be useful. I don't know if the water jacket wall is thick enough there for an NPT to seat well, tho.
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'52 F-1, EAB flathead |
04-28-2014, 08:52 PM | #8 |
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Join Date: May 2010
Location: Palmer, Alaska
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Re: 8BA cooling system drain
drilled and tapped both sides of my block in my 51 merc. and installed drain cocks, works good. best to do when the eng. is out of vehicle, other wise not enough room to do it. depending on vehicle they can be hard to get and use
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