706 replies to this topic

[Rosssco]

A blocked PCV is different to a failed one, one that has failed might be in the open position rather than closed. Meaning the boost from the supercharger could pressurise the crankcase and cause much greater loss of oil than normal.

 

So perhaps one of the first "tests" for Martin is to remove the intake manifold and block the PCV and check for different levels of oil consumption..

[fezzasus]

also inspect the laminovas

[Kieran McC]

My PCV has been blanked of inside the head is was open as most of the LSJ ones are., CS blanked it as they found a few problems with it when on the rolling road for the mapping

[smiley]

PCV is fully supported with the Dutch Software.

(and an aligned pcv hole to the manifold, which the saabs have)

[MartinS]

What should be set in the dutch software, in case it hasn't been done.

 

Martin S

 

[Kieran McC]

PCV is fully supported with the Dutch Software.

(and an aligned pcv hole to the manifold, which the saabs have)

I believe on the CS software the PCV is normally blanked of could be wrong

[CHILL Gone DUTCH]

Just for the record when I put the Saab engine in I switched the pcv valve for the Saab one When blowing down the z22se one and the Saab one there was deffo different restrictions I didn't measure it just by blowing down it I felt the difference in the two

[fezzasus]

What should be set in the dutch software, in case it hasn't been done.

 

Martin S

 

 

No software changes needed.

[CHILL Gone DUTCH]

A blocked PCV is different to a failed one, one that has failed might be in the open position rather than closed. Meaning the boost from the supercharger could pressurise the crankcase and cause much greater loss of oil than normal.

  So perhaps one of the first "tests" for Martin is to remove the intake manifold and block the PCV and check for different levels of oil consumption..

I mentioned this to Martin on Saturday I'm sure it's on his list of things to check While he cleans his laminovas 🙏🏻

[smiley]

 

PCV is fully supported with the Dutch Software.

(and an aligned pcv hole to the manifold, which the saabs have)

I believe on the CS software the PCV is normally blanked of could be wrong

 

 

Indeed.  

[MartinS]

All sound good except I have no idea what to do re regards taking off intake manifolds, checking PCV valves etc, out of my abilities/knowledge zone.

Doing a compression test next (I'm learning stuff all the time, whoopee).  If theres something wrong there, I'll probably just set fire to the car, cook sausages on the heat and sing campfire songs.

 

Martin S

 

[fezzasus]

I'd be very surprised if the compression test shows anything

[Sutol]

I'd be very surprised if the compression test shows anything

best place to start imo

[Nev]

If you are sure you are genuinely burning the oil, then my guess would be that the rings have not bedded in. If this is the case, resume using a thick mineral oil (ideal with minimal additives) and trash the hell out of the engine for at least 1000 miles. I base my suggestion on having a similar problem (though not as severe) and it improved things for my engine. As additional info, I find my engine consumes more when only lightly driven or cold/warm. When I hammer the engine oil consumption improves, possibly because the rings and pistons expand when really hot. You may get similar symptoms. In the old days people used to shove things like Vim powder into the cylinders to get them scorred up again, but it takes a bold man to do that ! LOL

[FLD]

The build book says to increase the dia of the breather system on boosted engines to at least -12 iirc. This is to slow the speed of the gasses in the crank case vent system which helps the oil vapour condense. Not sure if this is causing your problems, maybe fezzasus has some insight

[FLD]

One other thought..... Is there a difference in the comb separators in the rocker covers for z22 and Saab?

[Kieran McC]

I used mineral for the first few hundred miles to beds the rings in , I'm pretty sure Martin would have done the same .

[Sutol]

Martin was very careful with running in

[Nev]

Martin was very careful with running in

What does that mean exactly please? I found running in to take around 2000 miles and needed as much revs and power that I could drive with.

Edited by Nev, 30 September 2015 - 07:27 PM.

[Kieran McC]

I was told the worst way to run a engine in, was to sit on a motorway at 70 mph not using the revs or using the gears.