optional oil return path ?

Old February 15th, 2010, 09:08 PM
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Smile optional oil return path ?

I need help pls (as per usual !)
As can be seen from the pics , I have enlarged and chamfered the standard oil drain back holes and given the valley a wee polish . The enlargement is the same in the heads.
However, (scary word that) I read where a chap drilled into the heads , attached 1/4 " npt fittings and tee` d into back of the block. On one of the pics I have attached tape with black spots depicting where I propose to drill and tap. The block hole -to-be is roughly 3/4 " below the other 2 head holes -to-be. Does this look as though it may work,help ?? Assuming it is advantageous,other than the dizzie what else may get in the way of the external oil lines ??
tx in advance
mike
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Old February 16th, 2010, 01:53 PM
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I have been told (by a guy who tried it) those lines don't help. Said it was a total waste of time.
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Old February 16th, 2010, 05:52 PM
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tx 380 for your input and opinion of your friend`s.
I have found the original link I read and it`s pasted below.
Almost diametrically opposed to your friend`s --more interesting that way.
mike
http://www.442.com/oldsfaq/ofbld.htm
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Old February 16th, 2010, 07:11 PM
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You can read what you want but I wouldn't hold the FAQ on 442.com as gospel.
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Old February 17th, 2010, 03:03 AM
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So now that you have polished the valley some people would say to coat it with glyptal to make it very smooth for the oil to run back down !!
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Old February 17th, 2010, 10:14 AM
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If you look in your third pick of the valley, where you have the four arrows in the corners by the return holes from the heads you can remove this area making a channel for the oil to go through not just a hole to bottleneck it.
Jkaz
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Old February 17th, 2010, 02:14 PM
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Originally Posted by Yellowstatue
So now that you have polished the valley some people would say to coat it with glyptal to make it very smooth for the oil to run back down !!
yes heard of this --just not certain the glyptal or any paint won`t flake and find itself touring the engine --food for thought anyway
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Old February 17th, 2010, 02:15 PM
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Originally Posted by kaz442
If you look in your third pick of the valley, where you have the four arrows in the corners by the return holes from the heads you can remove this area making a channel for the oil to go through not just a hole to bottleneck it.
Jkaz
looks like an easy wee job too --might just do it.
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Old February 18th, 2010, 01:41 PM
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Originally Posted by kaz442
If you look in your third pick of the valley, where you have the four arrows in the corners by the return holes from the heads you can remove this area making a channel for the oil to go through not just a hole to bottleneck it.
Jkaz
Interesting idea ! Anyone have pictures ? Risks involved ?
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