Sounds like water in your fuel or a vacuum leak.

Stan

On Thu, 17 Oct 2002 16:00:25 -0400 Blake Heinlein
<blakeheinlein@HOTMAIL.COM> writes:
> Hi Everyone,
>
> I've been working on a mysterious power loss for the last week or
> so.  I
> have an '84 Westy Automatic 1.9L Digijet Injection.
>
> Here are they symptoms:
> - Idles fine
> - Accelerates at about 1/2 of normal rate
> - Makes a deep muffled roar when accelerating with load.  This is a
> new
> noise that I can't explain.  Sounds like I paid a lot of money for a
> new
> muffler.
> - Can't imitate noise while in Park.  If I rev the engine in park
> it
> doesn't make the noise.
>
>
> Diagnostics I have performed:
> - Compression test on all cylinders (good)
> - Removed sparkplugs and checked for spark (good)
> - Removed fuel injectors and checked for spray (good)
> - Checked fuel flow rate on fuel injectors (good)
> - Checked fuel pressure at inlet T (good)
> - Spark plug wire resistance (good)
> - New spark plugs
>
> Well, those are the clues, now I'm hoping that someone will have
> clues,
> suggestions, or other areas to check so I can diagnose this.  Thanks
> in
> advance to everyone.
>
> -Blake Heinlein
> http:/members.accessbee.com/heinlein
>
>

________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/web/.