Date: Mon, 7 Jan 2002 10:14:38 -0600
Reply-To: Stan Wilder <wilden1@JUNO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1@JUNO.COM>
Subject: Re: Aircooled Westy - fuel problems?
Content-Type: text/plain; charset=us-ascii
To boot, he has the bottom cooling tins removed (I already scolded him on
that one).
----------------------
If he's intent on murdering his van then let him work on it himself.
He'll learn a lot when he rebuilds his engine or buys one.
*Manual! we don't need no stinking manual!*
Have him subscribe to the list and ask his own questions.
Stan Wilder
83 Air Cooled Westfalia
On Mon, 7 Jan 2002 09:43:41 -0500 Brian Atkins <wvveedub@NETSCAPE.NET>
writes:
> OK, to the best of my knowledge / recollection, here is the story:
>
> My neighbor was trying to 'clean up' some of the lifter noise on his
> '81 Westy this weekend (many thanks to those of you that responded
> to the post on Friday). Having previously used the gunk / atf clean
> out method, he decided to move on the the adjustment part. I loaned
> him my Bentley manual and printed out the article on lifters from
> the Boston Engine site for him to use.
>
> According to the Bentley manual, it states the valve adjustment
> should be 2 turns down past touching when the piston is at TDC.
> After doing so, he couldn't get the engine to fire. He then backed
> them out to 1 turn and finally 1/2 turn before the engine came back
> to life.
>
> Once it was running, he took it for a test drive to see if the
> lifter noise was still present. About a mile or so down the road,
> the van stalled (according to him, it started bogging down when he
> was accellerating). He was able to restart it by relieving pressure
> from the 'bleed screw' on the line to the #3 & #4 injectors.
> However, it stalled again before he could make it home.
>
> I towed him back to his place and we started checking things out.
> Several times we used the 'bleed, start, stall, bleed, ...' method
> to try to diagnose the problem. Again, using the Bentley manual, we
> determined that he had a bad fuel pressure regulator. Luckily, a
> FLAPS in Winchester had one.
>
> About 1 1/2 hours later, the van is firing up again and idleing, but
> lokks like it is running very, very rich (black smoke out of the
> exhaust & fuel smell). Touching the pedal when it is cold produces
> strong revs, but after it warms up a bit (2 - 3 minutes), idle
> becomes errattic and touching the pedal causes the engine to bog
> down. Turning off the engine and letting it cool for a couple
> minutes and the engine starts and runs fine (except the mixture)
> until it warms up again.
>
> Now, although I have assisted him from time to time, I am not all
> that familiar with what he has done to it. I do know that the
> previous owner ripped most of the emmissions off (no egr, o2 or cat
> converter) and that he has the timing set at 5 degrees ATDC. To
> boot, he has the bottom cooling tins removed (I already scolded him
> on that one).
>
> I suspect a vacuum leak combined with overheating, but I have very
> limited experience with EFI and can't explain the rich mixture. The
> stalling / bogging I suspect is a result of the plugs fouling or
> possibly pre-detonation, but it started smowing heavy just as we
> were getting into that and we wussed out.
>
> Brian
> '85 7-passenger GL
> '73 Beetle
> (does my neighbor's van count?)
> --
>
>
>
>
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