RE: Re: sick 'roc

[Night Shadow <soltwede@ucsub.colorado.edu>]

Definately sounds like it could be a clogged cat!

Eric


On 25 Feb 1999, Jonas Karlsson wrote:

> 
> Well here's an update/more info.
> 
> first off, injector seals are new, both cam timing and ignition timing 
> have been triple checked and are on the mark. 
> 
> The problem is most noticable when driving, there is very little power.  
> It takes forever to get up to speed. Also is has a kind of "shuddering" 
> of the engine that is constant, rpm dependant, and more intense the more 
> torque I put to the wheels. It feels like a cylinder is missing/not 
> giving power.  At idle, this shudder is still there, but *barely* 
> noticable.  
> 
> Furthermore, the exhaust is really stinky. Not sure if it's unburnt fuel 
> or oil, or what. And the  exhaust get hot really quick. 
> 
> I am dropping it off at ND tonight, and hopefully they can figure it out. 
> 
> 
> I am fearing broken piston rings. Hoping otherwise. But well see. 
> 
> Jonas
> 
> 85 Sickrocco :-(
> 
> 
> Wm. Josiah Erikson wrote:
> >I'd check your ignition timing. Overadvanced ignition timing could 
> possibly
> >cause this. Does it limp at idle, too? Check your injectors, injector
> >seals... did you check them out when you took the head off?
> >    Good luck!
> >    -Josiah
> >
> 
> 
> 
> 
> >Jonas Karlsson wrote:
> >
> >> My scirocco is sick :-(
> >>
> >> Last week it suddenly (first noticed it after start up 
> >following a 3-4
> >> hour rest) developed a scary problem. It has no power, and it 
> >shudders
> >> when torque is put to the wheels (from the engine, like a 
> >cylinder is
> >> missing). Also it seems to get hot real quick (not overheating, 
> >just
> >> heats up much quicker. After just a 5 minute drive, the exhaust 
> >is
> >> "crackling" and "ticking" the way it usually does after a good 
> >long
> >> drive).
> >>
> >> I checked plugs, wires, injector flow, and compression. Plugs 
> >and wires
> >> were fine (both are also 1 month old), injectors all flowed 
> >with a nice
> >> pattern, compression showed one cylinder as having 20 psi lower 
> >than the
> >> other 3, which were at 180. I put a tablespoon of oil into the 
> >cylinder
> >> to see if it changed, but it did not. I decided to pull the 
> >head. Upon
> >> inspection, it appeared as if there was exhaust blow-by at the 
> >cylinder
> >> with low compression. Also the cylinder head showed some 
> >pitting where
> >> the head gasket seats. The head had already been resurfaced to 
> >give a
> >> higher CR, so I decided to try to find another head at the 
> >junkyard. I
> >> had the new head resurfaced (gave it a 9.5:1 CR). Put it all on 
> >last
> >> night. Started her up at 11:00. Problem is still there. WTF.
> >>
> >> Needless to say I'm frustrated and going through 'rocco 
> >withdrawal. I
> >> called ND and they will take a look at it on Friday. Tonight I 
> >will take
> >> another look to see what I can see. I will check the 
> >compression again.
> >>
> >> Any ideas/suggestions as for what to look out for. Fuel seems 
> >to be
> >> getting there, I havn't checked for spark, but the plugs, 
> >wires, cap,
> >> rotor are all really new (<4months old). What else. Timing is 
> >on the
> >> mark. Cam timing is a possible source of problem. I have an 
> >adjustable
> >> cam sprocket to counter the retard caused by the shaved head. 
> >I'm pretty
> >> sure that the timing lined up, but it is entirely possible that
> >> somewhere it is one tooth off. What are the symptoms of that? 
> >Could that
> >> be it?? I'll triple check tonight.
> >>
> >> Please help me ressurect my rocco.
> >>
> >> TIA
> >>
> >> Jonas
> >>
> >> 85 Sickrocco  :-(
> >>
> 
> 
> 
> 
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