inlet blanking

On the inlet manifold i have 4 vacuum ports that are blanked and 4 that are joined Together with pipe ..

Do the ones that i have joined together need to stay like that or can i blank them off like the other ones? ..
Does that make sense?

Don't see why you can't blank the other ones off rob. There's nothing else plumbed into the ones that are jointed though? Like bov for example?

Only reason i ask is i bought some nice blue silicone blanks and i have 4 spare

just blank them all separately

Amy idea why people normally join 1+2 together then 3+4 together? Why don't people normally just blank them

all mine are blanked off and my car idles better with them done if i put them back some times on idle it hunts

Can you post a picture ?

i cant put one up of mine car is about 4000 miles away

They are linked to balance them out iirc

scotty6860 wrote:i cant put one up of mine car is about 4000 miles away

4000!

I take it your not home or the car is Saudi Arabia lol

ROB_IOW wrote:Amy idea why people normally join 1+2 together  then 3+4 together?    Why don't people normally just blank them

I think its just a way of blanking them off rather than using the blanking nipple things they just use silicone pipe. Dont think there is any difference?

Yeah just like shroom said, possibly the owner lost the orignal blanks so they just joined the ports together.

The only thing il add to this is if you blank them off then obviously you have done away with recirc from rocker cover, if this is the case then make sure you remove the Pcv valve so the engine can breathe properly if it's left in there without a source of vacuum then it will remain shut thus stifling the engine

How do you remove the pcv?

If you're removing the PCV I'll buy it off you.
It's one of the bits still missing of my spare engine...