Re: Fuel Pump/Tick/Road Trip

[mozg <Christopher.Bodenlos@Colorado.EDU>]

On Tue, 8 Sep 1998, Brett VanSprewenburg wrote:

> > On this
> > particular day, the 'hum' escalated into an much higher pitched squeal
> > upon ignition, and didn't stop. 
> 
> Classic sound of a dying main fuel pump.  The demise of the in-tank fuel
> pre-pump usually causes the main pump to die.  I suggest you check both.
> Do you have a Bentley manual?
	
	Yep- breaking it out as we speak.
... 
> > 	One more annoying problem that developed about a month before the
> > trip. When cold, the engine ticks loudly. I really don't know what causes
> > a tick, but after running for a few minutes, it goes away and I dont have
> > to worry about it again until its cold. Ignoring this problem hasnt made
> > it go away (unlike *most* of my problems :) Thanks for any opinions!
> 
> This is the sound of hyraulic lifters, well, lifting. :-)  When cold, the
> lifters 'fall' and need to be pumped back up with oil pressure when you
> start the car.  The sound is (I believe this is the phrase) caused by the
> valve lash being taken up by the cam lobe.  This ticking sound isn't too 
> big a deal, most of these cars do it to some degree or another.  
> This _could_ be an indication of a weak oil pump, or even thin oil.  
> Change to a 20w/50 oil and your problems will probably go away, and use a 
> Bosch or Mahle filter (they have the correct by pass and anti-drain back 
> valves).

	I use 20w/50 AMS Oil in the summer months, as well as an AMS Oil
filter. My experience has shown that the solution to the problem is not
the simplest answer, but the most expensive :)

> Let me know if you need more info.
> ==Brett 

Chris Bodenlos
88 16v

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