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RE: Low FE428 Oil Pressure...Help
By John - 11/08/2000 10:06:18 PM; IP 142.177.53.73
I have made further inspections of my engine and still cannot find what has
caused my decrease in oil pressure. Bearings seem OK, and I even checked the cam retainer plate as one of the bolts seals the oil gallery to the ditributor. All gallery plugs were changed to threaded type and installed with loctite...very firmly. But I have one further question before I decide to strip it down. In a desperate attempt to check out the oil
pump (Melling M57HV, Wolverine Blue Racer P/N WG-324X) I decided to check the
bypass spring and piston. When I center-punched the press-in plug for
drilling, it moved down into the pump housing quite a bit, maybe a little over
or around 3/32 of an inch. Shouldn't the press-in plug be bottomed out to the
counter-bore at the factory during assembly? If it moved out, it would
explain why my cold idle oil pressure has dropped from 80 psi to 58psi and
that no amount of reving will increase it. Mind you it doesn't explain why my
hot idle oil pressure has dropped from 18 psi to 13 psi, but at an idle, even
100 rpm difference creates a noticeable effect on oil pressure. So, the
question is,"Should the press-in plug be bottomed out in the relief valve
bore, or not?
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=3181&Reply=3181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor3181" onclick="return false;">Low FE428 Oil Pressure...Help</a>&nbsp;-- <font color=#0000ff>John, <i>11/03/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=3181', contentMargin: 60, icon: $('anchor3181') }); </script>  Low FE428 Oil Pressure...Help -- John, 11/03/2000
Collapse <a href=../ForumFE/reply.aspx?ID=3191&Reply=3181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor3191" onclick="return false;">RE: Low FE428 Oil Pressure...Help</a>&nbsp;-- <font color=#0000ff>RC Moser, <i>11/04/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=3191', contentMargin: 60, icon: $('anchor3191') }); </script>  RE: Low FE428 Oil Pressure...Help -- RC Moser, 11/04/2000
 RE: Low FE428 Oil Pressure...Help -- John, 11/04/2000
Collapse <a href=../ForumFE/reply.aspx?ID=3195&Reply=3181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor3195" onclick="return false;">RE: Low FE428 Oil Pressure...Help</a>&nbsp;-- <font color=#0000ff>John, <i>11/05/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=3195', contentMargin: 60, icon: $('anchor3195') }); </script>  RE: Low FE428 Oil Pressure...Help -- John, 11/05/2000
Collapse <a href=../ForumFE/reply.aspx?ID=3197&Reply=3181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor3197" onclick="return false;">RE: Low FE428 Oil Pressure...Help</a>&nbsp;-- <font color=#0000ff>Ross, <i>11/06/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=3197', contentMargin: 60, icon: $('anchor3197') }); </script>  RE: Low FE428 Oil Pressure...Help -- Ross, 11/06/2000
Collapse <b>RE: Low FE428 Oil Pressure...Help</b>&nbsp;-- <font color=#0000ff>John, <i>11/08/2000</i></font>RE: Low FE428 Oil Pressure...Help -- John, 11/08/2000
Collapse <a href=../ForumFE/reply.aspx?ID=3224&Reply=3181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor3224" onclick="return false;">RE: Low FE428 Oil Pressure...Help</a>&nbsp;-- <font color=#0000ff>Chris Teeling, <i>11/08/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=3224', contentMargin: 60, icon: $('anchor3224') }); </script>  RE: Low FE428 Oil Pressure...Help -- Chris Teeling, 11/08/2000
Collapse <a href=../ForumFE/reply.aspx?ID=3376&Reply=3181><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor3376" onclick="return false;">RE: Hope the block is not cracked!</a>&nbsp;-- <font color=#0000ff>Paul R, <i>11/23/2000</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=3376', contentMargin: 60, icon: $('anchor3376') }); </script>  RE: Hope the block is not cracked! -- Paul R, 11/23/2000
 RE: Hope the block is not cracked! -- John, 11/23/2000
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