Rough idle after LIM gasket repair

[grey_hawk]

Yes the EGR valve has a spring. Seeing you will have to take plenum off to put the spring back in, replace the (knackered) gasket.
The plenum/LIM gasket should be rubber 'pairs' of 'o' rings.(Pictures taken from Gregory's workshop manual.)

 

[grey_hawk]

Yes apologies, I meant PCV also...

 

[Lex]

The plenum/LIM gasket should be rubber 'pairs' of 'o' rings.

Thats the earlier models.

Vx -vy had the steel gasket between the lim & plenum.

 

[krusing]

I think @krusing means the pcv valve?

I did the lim gaskets last year, the kit l got was from repco. The gasket between the lim & plenum was paper, very thin cardboard. Like yours it tore.
I took the old steel one & used a very thin rtv gasket on either side of the metal gasket.

Then took the lim back off. Had some used mace metal lim gaskets, so cleaned them back up, & replaced the crap repco ones.

I'm assuming you used the orange end seals for the ends of the lim?
While doing the end seals did you put a dollop rtv sealant on the corners?

I used a thin rtv sealant over all the surfaces orange seals.

Lastly did you connect the small hose from under the throttle body?

Ahh, Yes,
PCV Valve,
I knew what I meant, and where its located, but wrong description name.

 

[krusing]

Yes the EGR valve has a spring. Seeing you will have to take plenum off to put the spring back in, replace the (knackered) gasket.
The plenum/LIM gasket should be rubber 'pairs' of 'o' rings.(Pictures taken from Gregory's workshop manual.)View attachment 258376View attachment 258375

Your on the Ball

 

[Lex]

Does the EGR pipe have a spring in it? That’s the only piece left over from the entire job

No the egr pipe dosen't have a spring, But the pcv does. There's also a oil separater sits in the bottom then the pcv, then the spring.

That spring that you posted about ealier isn't the pcv spring.

I'll post a pic of one a little later. I'll grab a pic now.

 

[krusing]

Yes the EGR valve has a spring. Seeing you will have to take plenum off to put the spring back in, replace the (knackered) gasket.
The plenum/LIM gasket should be rubber 'pairs' of 'o' rings.(Pictures taken from Gregory's workshop manual.)View attachment 258376View attachment 258375

Looking at the image with the PCV valve in it,
the Actual valve looks like the ones used in the old Red motors that sat on the rocker cover fitted to a rubber seal.

 

[krusing]

LIM & PCV Components

(Page 2 explains the cause for rough idling)

 

[Lex]

I'll post a pic of one a little later. I'll grab a pic now.

There's 2 pcv & the spring. Couldn't find the oil separater.

 

[Glaze]

Car is running sweet I put the original metal gasket back in and made sure the throttle body breather hoses were good and now idles and runs mint. I noticed the aftermarket gasket did not have a hole that leads to the pcv you can see both gaskets in the pic. Cheers for all the help fellas enjoy the weekend