[Jamie '92 968]

A few weeks ago when I was at RSBarn I saw an old intake manifold sitting in the corner with a massive build-up of carbon on the inside.
Pete told me that he would send the part out to be dipped and bead blasted to remove the build-up.

I decided to have the procedure done for my car, since I suspected carbon build-up.

Well...
Last week I had Pete and Max swap out my intake manifold, and also the vanity cover and valve cover so they would match.
The result was spectacular!
My engine looks brand new. I can't wait to pop the hood in Hershey and show it off.

But here's the best part...
As a result of cleaning out the carbon from the manifold, and the top of the valves where it was accessible during the procedure, along with a bottle of run rite treatment for the combustion chamber, my car runs like new again!!!

I thought it was running great before, but now it's even better! The effect is most noticeable when the engine is cold. Where it used to run better after warming up, now it runs great from the moment it fires up.
They also added a thermal gasket where the manifold attaches to the engine which is designed to minimize heat transfer to the manifold and thereby reduce the temperature of the air entering the combustion chamber.

The car runs smoother and has noticeably more pep. WOW!
Don't know how much was due to the carbon removal and how much from the fancy gasket, but I don't care.

The whole procedure was way less expensive than I would have expected.

This was a great move for my car. I'd recommend you talk to Pete about it if you have a high mileage car like mine.

[img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img]

Jamie

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[Johannvb]

Great! Thanks for posting, I might just have this done on mine too.

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[rhudeboye]

hmmm. Isn't this is one of the recommended treatments before SCing your car?

Pete, your about to get real busy [img]style_emoticons/<#EMO_DIR#>/tongue.gif[/img]

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[Fox944]

Awesome.

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[flash]

lol - it's amazing at how well cleaning the intake works - even the run-rite sledgehammer i just dumped into the denali seems to have had an effect - definitely feels smoother

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[Johannvb]

Since RSBarn is not a cross country drive or around the corder for me...can someone please post the steps and tools required to get this done?

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[flash]

a traditional run-rite treatment is not a DIY - the tools are not available, and you have to go to a run-rite center to have it done

but, if you want to remove your manifold and do it that way, i believe the steps and such are in the workshop manual - if not, while a pain in the butt, it is fairly straight forward

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[jlm968]

I run a can of BG44k through it about every 15k miles, and it seems to run better afterward. I assume it cleans the injectors and anything downstream of the injectors, which includes a short amount of the intake runners. Any opinion on that stuff, or am I wasting that money on an additive when I should instead be R&R'ing the intake manifold to properly clean it out?

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[PorscheDude]

One could pull the intake and clean it, the intake ports and the and valves in an afternoon.
The biggest caution is cleaning the valves. You don't want to Nick a valve stem or leave any debris in the port.
When I did mine, I used a shop vac with a small nozzle to suck any debris out.

Be sure to have new intake manifold gaskets on hand and pay attention to vacuum line locations.

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[PorscheDude]

Also you'll need various brushes to get hard reach spots in the manifold.
If I were to do it again, I'd send the manifold out for hot tank cleaning.

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[rhudeboye]

'jlm968
I run a can of BG44k through it about every 15k miles... am I wasting that money..."

Not a waste. I have heard nothing but praises across the board from mechanics, radio show hosts like Pat Goss as well as friends and track guys. Everyone loves the stuff and notices a difference. I even had it silence a knock in my old Millenia. Cant explain how a an injection cleaner did it but it did.

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