'89 200 stumbles off the line?

[Burl Vibert]

I had similar symptoms and it turned out to be the michelin man hose
was split.  Cleaned it and glued back shut with loctite 404 (crazy
glue) and have been staying off the boost until the new one arrives. 
Much better driveability since.  I think the bogging occurs when the
engine shifts slightly because of the torque which opens the hose,
then the torque disappears and the engine shifts back closing it.  If
I held the throttle at just the right spot it would get into a weird
bucking cycle.

HTH

Burl Vibert
1987 5kcstq
Kingston, Ontario



Keith Lawyer wrote:
> 
> My '89 200 w/MC2 has developed a stumble off the line.
>  Idle is normal, but as I let off the clutch and apply
> gas from a dead stop it almost "bogs", as tho the a/c
> is on, but it is not, a/c clutch spins free.  It will
> sometimes do it as I shift to 2nd as well, but not
> always.  Once moving and above about 2k rpm all is
> well.. .. ?
>   Would a clogged fuel filter or pump screen cause
> such symptoms?  Cap and rotor look good.  Throttle
> switch (if relevant) was replaced about 3 months ago
> w/the new improved style.  Motor is up to operating
> temp, not sure if it does it when cold as the problem
> just now appeared.
>   Not sure if related but I also have low or no boost,
> which appeared about two days ago.  The low boost I
> should be able to troubleshoot w/SJM's site, but the
> "bogging" has got me stumped.
>   Any help is much appreciated.