Original Message
RE: Will need a little more info about your rebuild-
By mcj67 - 02/11/2001 10:52:56 PM; IP 12.78.178.253
Hello Terry, Everything looks good.
Your main bearing oil clearance of .008" is good, its on the tight side of the limits for a 390 V8, of .0005-.0015 (which is what you want),
It don't look like its loosing oil pressure at the main bearings.
Ask your builder what the camshaft bearing clearances checked out to be, even when using all new parts they should be measured to assure that the right bearings were supplied.
Also ask your builder what the plastic gauge readings were to the connecting rods.
Usally this kind of oil pressure drop is caused by excessive bearing clearances.
It looks like you did pick a builder that will stand behind you.
It still may turn out to be just the oil pressure gauge.
Sometimes you can have a lifter oil galley plug push out of the back of the block, but that would be obvious with all the oil leaking out under the car.
Also certian crankshafts have small plugs in them where the oil gallies were drilled into them, this could also cause low oil
pressure if one of these small plugs were pushed out .
Thats about all I can help you with for now.
Good Luck, MikeJones
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Collapse <a href=../ForumFE/reply.aspx?ID=4765&Reply=4765><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4765" onclick="return false;"> 66' Fairlane 390 GTA engine oil pressure</a>&nbsp;-- <font color=#0000ff>Terry, <i>02/10/2001</i></font><script type="text/javascript">
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  66' Fairlane 390 GTA engine oil pressure -- Terry, 02/10/2001
 RE: 66' Fairlane 390 GTA engine oil pressure -- Stanley Superior, 02/10/2001
 RE: 66' Fairlane 390 GTA engine oil pressure -- Alan Casida, 02/10/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4774&Reply=4765><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4774" onclick="return false;">There is no pressure relieve valve in your block.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>02/10/2001</i></font><script type="text/javascript">
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 There is no pressure relieve valve in your block. -- Dave Shoe, 02/10/2001
 Dave have you ever used copper tube on them- -- mcj67, 02/10/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4775&Reply=4765><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4775" onclick="return false;">Will need a little more info about your rebuild-</a>&nbsp;-- <font color=#0000ff>mcj67, <i>02/10/2001</i></font><script type="text/javascript">
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 Will need a little more info about your rebuild- -- mcj67, 02/10/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4815&Reply=4765><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4815" onclick="return false;">RE: Will need a little more info about your rebuild-</a>&nbsp;-- <font color=#0000ff>Terry, <i>02/11/2001</i></font><script type="text/javascript">
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 RE: Will need a little more info about your rebuild- -- Terry, 02/11/2001
Collapse <b>RE: Will need a little more info about your rebuild-</b>&nbsp;-- <font color=#0000ff>mcj67, <i>02/11/2001</i></font>RE: Will need a little more info about your rebuild- -- mcj67, 02/11/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4906&Reply=4765><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4906" onclick="return false;">RE: Will need a little more info about your rebuild-</a>&nbsp;-- <font color=#0000ff>Terry, <i>02/13/2001</i></font><script type="text/javascript">
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 RE: Will need a little more info about your rebuild- -- Terry, 02/13/2001
 Rebuilt FE should have better idle oil pressure -- mcj67, 02/16/2001
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