[DML] Re: ACCELERATION PROBLEM UPDATE WITH JOSH'S BEAST
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[DML] Re: ACCELERATION PROBLEM UPDATE WITH JOSH'S BEAST



By pushing down on the air sensor you are enriching the mixture by
adding more fuel. Since you said the engine would then continue to
increase the RPM's that would indicate the mixture is too lean. I
would check the injectors and look for vacuum leaks. Since you were
able to do that with a melted convertor, that wasn't your problem. The
hunting will probably go away after you check the injectors and fix
the vacuum leaks.
David Teitelbaum
vin 10757



--- In dmcnews@xxxxxxxxxxxxxxx, mike clemens <rmclemns@...> wrote:
>
> Okay, some history first, since several folks have asked.  Josh's
car was originally sold in New York and was driven there for many
years.  Then it made it's way to California and then to Oklahoma and
now it resides in Arkansas.  My best guess is that before I started
working on it, it has probably been 10+ years since it last ran under
it's own power.
> 
> Here's where we are today.  I utilized many of the ideas that the
List provided to try to solve the backfiring and bogging between 3 and
4000 rpm, but one hit the nail on the head.  Thanks to Ken K, he
suggested I push down on the air metering flap, while at the same
time, giving it throttle.  RPM's went all the way to red line-----yea.
 He also gave me two things to look at----a vacuum leak and possibly
the cat plugged.
> 
> Well, when I snapped off the O2 sensor, I decided to go ahead and
pull the cat, since I was already there.  I was able to remove the cat
and when I looked inside, I saw a mud dauber nest!  After about 5
seconds of trying to figure how they got in there, I came to realize
that it really wasn't a mud dauber nest at all, but the cat had
overheated and melted the 'guts'.  Since the cat was useless, I gutted
it and reattached everything, including a straight pipe in place of
the muffler, just to see if this fixed my problem.
> 
> Answer----nope.  I still can't get full throttle and now the idle is
hunting both cold and hot.  (550-950 rpm)
> 
> I'm down to this last thing to get BB running 4.0 and out of my
shed.  Any ideas will be greatly appreciated.
> 
> Mike   TPS   1630
>



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