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Re: [Healeys] oil pressure gauge problem

To: healeys@autox.team.net
Subject: Re: [Healeys] oil pressure gauge problem
From: Oudesluys <coudesluijs@chello.nl>
Date: Thu, 15 Aug 2013 17:20:51 +0200
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <2095529564.2044694.1376571694697.JavaMail.root@sz0050a.emeryville.ca.mail.comcast.net> <1DA83449-5485-4347-B514-7E4BA288FE0E@gmail.com>
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Air in the line is never the case of the vibration. There should not 
really be much oil in the line if at all or any oil in the gauge. The 
air in the line works as a damper, there should also be a kind of 
restrictor in the gauge, often this looks like a metallic filter, just 
visible or it could be a very small hole. It may be that there is a 
small leak near the gauge causing the whole line to fill up with oil. 
Oil pressure does fluctuate somewhat because of the fluttering of the 
pressure relieve valve or the oil draining away when the crank (rod) 
bearings are loaded so the the play near the oil hole in the crank is 
temporarily enlarged at once every revolution, especially in older (a 
bit) worn engines and with hot oil.
Loosen up the nuts at the  gauge and the engine end, let the oil drain 
away and retighten. This will usually cure the vibration of the oil 
pressure needle.
Kees Oudesluijs
NL


Op 15-8-2013 15:29, Chris Dimmock schreef:
> Air in the line....
> Mitch. Easy job.
> With the motor running, warm idle, a good light, a good clean rag, wearing an
> old shirt (or one your ex wife bought you that you hated anyway), wearing
> glasses/ googles just in case, and holding a spanner that fits the oil line
> feed nut behind the guage, carefully crack the oil line feed nut, rag at the
> ready.... Do not remove the spanner from the nut...
> When you feel warm engine oil flowing down your arm (the one holding the
> spanner), and/ or you feel the burping of air has finished, re tighten the
> nut.
> If appropriate, send the shirt back to the ex. Otherwise, you now have a
> smooth moving guage, AND a new workshop bench cloth (depending on your wrench
> finesse, and your warm oil down the arm reaction time....)
> Took me 3 goes to actually ruin that damn shirt....
> ;-)
> Best
> Chris
> www.myaustinhealey.com
>
> Sent from my iPhone
>
> On 15/08/2013, at 11:01 PM, caddi5@comcast.net wrote:
>
>> Hello,
>>
>>
>> well the BJ8 runs very good.........everything works............but last
> night when I arrived home..........I noticed the oil pressure needle was very
> erratic  (moving very fast ...back and forth)  any ideas what's the problem??
>>
>> thanks
>> Mitch
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