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[omega3000]

Anyone on here done the port polish ? I was considering doing this together with blanking off the EGR , anyone seen any smoother power delivery or increases in performance in any way 

[JamesV6CDX]

Carb cleaner and an old toothbrush will do the job....

[JamesV6CDX]

I'd also leave EGR alone on the V6 - they are reliable

[omega3000]

Carb cleaner and an old toothbrush will do the job....

Hi james , ive been reading the port polish guide on here and i might have it wrong but my reading was the EGR is feeding crap into the throttle bodies and gooing them up ..was only considering it and polishing the throttle body lip 

[Elite Pete]

I wouldn't port and polish the throttle body, its a waste of time and effort but I would blank off the EGR valve. You can buy a blanking plate from Vauxhall for a few quid, I believe its the same one as fitted to the Astra

[omega3000]

I wouldn't port and polish the throttle body, its a waste of time and effort but I would blank off the EGR valve. You can buy a blanking plate from Vauxhall for a few quid, I believe its the same one as fitted to the Astra

Im starting to tidy up the engine bay and was going to get a used throttle body and work on that in spare time just for tinkering purposes then polish up the alloy parts that are fairly grimey 

[feeutfo]

Vast majority of gunk in the plenum and throttle body is from the breathers.


(...and no we don't to blank those off )

[omega3000]

Just quoting from the guide ..



 

[feeutfo]

Next time your in there have a look at the plenum internals. It's oily cooked on brown gunk. Although I suppose the egr would help the cooking process.

Plus, you'll find the exact same gunk on a 3.2 which has no...

...hang on. The 3.2 doesn't have an EGR.

[TheBoy]

and polishing the throttle body lip 

You'd be more productive trying to polish a turd

[Tony H]

and polishing the throttle body lip 

You'd be more productive trying to polish a turd

 

[feeutfo]

Although the catera might. Or where they all 3.0 ?

Anyway, gunk is from the breathers.

[feeutfo]

and polishing the throttle body lip 

You'd be more productive trying to polish a turd

 

yeah, that was a far better reply

[omega3000]

Yeah i noticed the cooked brown gunk in the plenum 

You'd be more productive trying to polish a turd

 

[GastronomicKleptomaniac]

Next time your in there have a look at the plenum internals. It's oily cooked on brown gunk. Although I suppose the egr would help the cooking process.

Plus, you'll find the exact same gunk on a 3.2 which has no...

...hang on. The 3.2 doesn't have an EGR.