that would be interesting to find another place ( besides the pressure cap fitting on the pressure bottle ) to tap into the cooling system so you cna pressurize it there, thus testing the pressure bottle and pressure cap right in place. I see the misunderstanding........ we're talking about, or at lesat I am thinking about, the engine, and possibly working on it....... and I see the words 'take out the compressor'........ which sounds to me like 'remove the compressor' ..........since I'm, thinking about the van and engine we're dealing with here. hence the unclarity. I never have to 'take out my compressor' of course.........it's hooked up full time and I just need to grab an air hose. I do need to 'turn on my air compressor to do a leak down test' though.
----- Original Message ----- From: "John Bange" <jbange@GMAIL.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Saturday, February 14, 2009 4:45 PM Subject: Re: Mocal sandwich plate plus oil cooler equals overcooling
>>>> starting with a leak down test. > >>> out the compressor tomorrow and have a look anyway. " >> >> "compressor" ??? >> what compressor ? > > My Hitachi air compressor... to hook up to my leakdown tester.... to > put compressed air into the combustion chambers.... to test how well > they hold pressure... you know, a leakdown test? > >> I would say an IR temp gun is mandatory to own and use if you're chasing >> any >> coolant or temp issues. > > I would have to agree. > >>> There was boiling upon shutoff, when the coolant stops >>> flowing and soaks up heat from the hot metal bits. >> >> Of course you realize millions of cars don't do this when their coolant >> stops circulating. >> The temp of the coolant in the engine does goes up some yes, for the >> first >> few minutes after shut down...... >> but it's normally never an issue, and 'boiling' isn't normal. > > Well yeah, that's why I decided to see if I couldn't get the > temperature down a bit. I may pressure test tohe cooling system with > the cap on, just to see what happens, but I'm fairly certain at this > point that it's holding pressure OK. > >> how about this......... >> what precisely is the coolant mixture you are using ??? >> brand , type, and water/a-frz proportion. >> I think you said Blue Pentosin. > > 50-50 blue pentosin and distilled water, changed yearly. > > -- > John Bange > '90 Vanagon - "Lastwagen" > '90 Vanagon GL - "Wiesel" |
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