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Re: Turbo problems
Posted by David Prantl (more from David Prantl) on Thu, 9 Sep 1999 09:10:08
In Reply to: Turbo problems, Damon Rogers, Wed, 8 Sep 1999 15:57:56 
Damon,

the spot between white and orange indicates a reading of ambient atmospheric 
pressure.  The white area is vacuum, and the orange (and eventually red) 
area is positive boost pressure.  The gauge should go quite far into the 
white area during in-gear deceleration.

Your gauge is hung at atmospheric, which means that either the vacuum hose 
to it is disconnected, or you have a major vacuum leak elsewhere.

Check all your little vacuum hoses and connections.  A good test (even if 
they look fine) is to pull each one off it's nipple and look at the hose 
end.  If it keeps it's 'connected' shape, then it cannot seal properly, and 
must be trimmed back or replaced.

I have heard that 12 feet of 3/16' fuel line is just the stuff you need to 
replace all your old vacuum hoses...

Best regards,

David Prantl
david_prantlno39sdcx6spamx782hotmail.com
'84 900S, 210kMi, RIP
'86 9000T, 170kMi
'88 9000S, 134kMi
'89 900, 115kMi
'68 97 Sonett V4, 76kMi, #000467


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