Original Message
I agree that it's likely an oil plug...
By Dave Shoe - 02/26/2003 1:12:11 AM; IP 216.243.176.34
...at the rear of the block, however, new neoprene rear seals have been known to leak on many a reassembly.

You can purchase an extra fat neoprene seal from FelPro. I forget the exact part number, but if you determine it's truly the new rear seal leaking, I'd advise using the alternate seal.

The problem is apparently related to the diameter of the crankshaft at the rear seal, though I may not have all my facts correct.

I was recently told of this issue by an FE race engine builder here in Minneapolis, Kurt Gartner, but I don't have his phone number handy (this office is a mess!) to call for a part number of the seal.

If I get the info, I'll post it. Otherwise, you might try the FelPro tech line, as they should know about the alternate rear main seal.

Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=16376&Reply=16376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16376" onclick="return false;">390 -rear main seal replacement</a>&nbsp;-- <font color=#0000ff>James, <i>02/23/2003</i></font><script type="text/javascript">
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 390 -rear main seal replacement -- James, 02/23/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16380&Reply=16376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16380" onclick="return false;">RE: 390 -rear main seal replacement</a>&nbsp;-- <font color=#0000ff>John, <i>02/23/2003</i></font><script type="text/javascript">
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 RE: 390 -rear main seal replacement -- John, 02/23/2003
 390 rear seal -- dewey, 03/13/2003
 RE: 390 -rear main seal replacement -- Bruce Geister, 02/25/2003
Collapse <b>I agree that it's likely an oil plug...</b>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>02/26/2003</i></font>I agree that it's likely an oil plug... -- Dave Shoe, 02/26/2003
 thanks folks -- James, 02/26/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16415&Reply=16376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16415" onclick="return false;">Back of intake</a>&nbsp;-- <font color=#0000ff>Terry, <i>02/26/2003</i></font><script type="text/javascript">
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 Back of intake -- Terry, 02/26/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16444&Reply=16376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16444" onclick="return false;">RE: Back of intake</a>&nbsp;-- <font color=#0000ff>Frank Hager, <i>03/03/2003</i></font><script type="text/javascript">
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 RE: Back of intake -- Frank Hager, 03/03/2003
Collapse <a href=../ForumFE/reply.aspx?ID=16446&Reply=16376><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor16446" onclick="return false;">+.0010 bearings?</a>&nbsp;-- <font color=#0000ff>James, <i>03/04/2003</i></font><script type="text/javascript">
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 +.0010 bearings? -- James, 03/04/2003
 RE: +.0010 bearings? -- James, 03/04/2003
 RE: +.0010 bearings? -- Frank Hager, 03/04/2003
 RE: 390 -rear main seal replacement -- Dewey, 03/13/2003
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