cerm78

My car is not pulling at the low end and I looked at the 6PI system and one of the sleeves is stuck open.

The actuators are in great shape and working and the front sleeve shaft can be rotated freely by hand, but the rear shaft can not be moved, even using hand tools.

I know that the correct procedure would be to remove the upper and lower intake manifolds but I don't have the time to do it right now and I cant source the gaskets I will need to reassemble them together (remember, I'm in Costa Rica)

Looking at the parts catalog I was thinking that it may be possible to remove the sleeve shaft and throw some carbon-removal-liquid (say carb cleaner, brake cleaner, WD40 or anything that will free the sleeve up)

I'm afraid of braking anything using brute force, so, before I proceed I want to know if someone knows if it is possible to extract the sleeve SHAFT from the lower manifold just by pulling on it, after removing the two screws that secure the shaft plate.

Thank you!

cerm78

Yesterday night I took the task of removing the non-stuck aux port actuator and shaft plate and that one shaft could be moved outwards until some point at which there was considerably more drag... In my philosophy of not breaking thinks that are working, I didn't try to take it out completely until someone can tell me if it is possible to do that without breaking thinks... given that behavior, I sprayed some WD40 and pulled the shaft using various leverage methods. It moved a little but it remains stuck good... I soaked it in WD40 and I'll try again tonight...

Meanwhile: Can the sleeve shaft be pulled out of the intake manifold without breaking something?

Thanks again!

fcforlife

iTrader: (9)

let me go try i have a na lower intake sitting around so i can see whats hanging you up

fcforlife

iTrader: (9)

yup after i got the screws out from the plate it slid right out.

you may have a lot of carbon build up on the shaft thats not letting it slide out.

hey if it breaks i got one for sale

HAILERS

Has it occured to you the sleeve itself is the one stuck? Not the rod? Sleeve being the cylinder shaped item that rotates to allow air to the intake port. It has a cross pin. The cross pin is engaged by the *FORK* at the end of the rod your removing. I don't know how hard it would be to reinstall that rod and make it engage the cross pin in the sleeve.

fcforlife

iTrader: (9)

it could very well be the sleeve it could also be the actuator itself. imho opinion just take the intake off to see what is really goin on whit the system.

HAILERS

It MIGHT be possible to remove the shaft with the fork on the end and then reinstall it and SOMEHOW mangage to engage the fork with the pin in the outboard end of the rotating sleeve. MIGHT.

fcforlife

iTrader: (9)

i would just try to turn it by hand before removing the shaft.

cerm78

Thanks folks!
Who was selling the 6PI shaft?

I did it, I broke the shaft yesterday... It was very stuck and was very difficult to rotate or to extract... I was making some leverage to the sides to rotate it progressively and it snapped... So I need a replacement and I will have to remove the manifolds to take out the broken one... so it seems that I will end doing what I didn't want to do...

The shaft was stuck by itself, because it wasn't possible to move it outwards, while the front one moved easily to certain point... But is very possible that the sleeve itself is stuck too...

For the folk that asked about the difficulty of putting the shaft back in the correct position, I discovered that it fits the sleeve rod in only one way, so there is no possibility of getting it wrong.

I managed to close the valve may be half way before the shaft broke, so may be I gained a little low end torque... but being that one valve works and the other don't, I'm concerned about the imbalance between rotor forces... Can using the car in that condition (one valve half open and the other working right) cause something else to go bad?

While I was working on that part of the engine I noticed that the air tube that is supposed to go to the cat. converter was dangling in the air (ie, not connected) because the cat doesn't have any air supply pipe. The car was supposed to pass emissions last year, but I guess it's better to install the right cat and connect that pipe too...

Anyway... It seems that there are some business out there for some people... I don't know, may be I deserve that

Thanks every one...

cmanns

How did you do this mate?

I think mine work if I go around 3,800 rpm and gun it I see the rpm gauge jump once it goes past 3,800 ish sometimes it doesnt jump and the rpms climbing doesnt feel as fast, would this be the 5&6th not opening?

I think I know where they are, right above the exhaust mani, you can pull them up right? I can get thesr things to move up and bit and something in the intake makes a lil noise, I can only lift them about 1cm its really hard.

cerm78

Yep, usually they should be difficult to move up (or down depending on series) because the actuators have a spring to return them to their closed position, so the more you pull (or push) them, the more difficult they are to move. But, my rear one was completely stuck open... and because of that my lower end is affected somewhat...

Now that I broke it, it seems I have a project in my hands...

cerm78

Any thoughts about this? Would the imbalance of the force exerted over the rotors be damaging to the engine?

Thanks!