Naasaa Posted August 27, 2014 Share Posted August 27, 2014 HiNew to this forum.I have a 1929 Nash Standard Six.Yesterday I experienced low oil pressure. Removing the tubing to the oil gauge revealed almost no pressure.I probably have to drop the sump, but before that. Is there a kind of strainer on the oil pump suction side that might have been blocked?ThanksLars Link to comment Share on other sites More sharing options...
keiser31 Posted August 27, 2014 Share Posted August 27, 2014 Is there an oil pressure relief valve on the block? I am not familiar with the Nash engine, but my '31 Dodge blocks have the valve. If it does have it, it may be blocked. Link to comment Share on other sites More sharing options...
Naasaa Posted August 29, 2014 Author Share Posted August 29, 2014 Unfortunately there is no obvious accessible relief valve.Is that normal for such old cars that you have to drop the oil pan to clean a filter or strainer for the oil pump suction? Link to comment Share on other sites More sharing options...
Owen_Dyneto Posted August 29, 2014 Share Posted August 29, 2014 Is that normal for such old cars that you have to drop the oil pan to clean a filter or strainer for the oil pump suction?Yes, absolutely. Remember your car dates from at least 15 years before the advent of detergent motor oils so sludge accumulation in the oil pan was a common thing and most car makers advised removing the oil pan for cleaning annually. Link to comment Share on other sites More sharing options...
DonMicheletti Posted August 29, 2014 Share Posted August 29, 2014 Amen to dropping the pan. The first thing to do if an old engine has been sitting a long time without running. I have seen many old engines bite the dust because, while the pan had been drained and refilled, the pickup screen was buried in muck at the bottom of the pan. As a matter of fact, that is how I got my "38 Buick. The previous owner drug it out of storage, changed the oil, fired it up, drove it home and fried the bearings from crud in the pan - he sold it. Link to comment Share on other sites More sharing options...
Naasaa Posted August 29, 2014 Author Share Posted August 29, 2014 Makes sense. Just not used to this old timer maintenance layout.Will drop the pan and hope that bearings isn't fried beyond usage. Link to comment Share on other sites More sharing options...
paulrhd29nz Posted August 29, 2014 Share Posted August 29, 2014 Is your Nash pressure fed, or a splasher?That will make a difference in pressure readings. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Naasaa Posted August 30, 2014 Author Share Posted August 30, 2014 I assume that its pressure fed, as the pressure usually were higher, before it dropped over a short distance. Link to comment Share on other sites More sharing options...
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