intake manifold

[shuggy]

gday guys one more questipon for ya. on my 75' 4g32 the intake manifold is different to the ones i got off an old guy for free
the bottom of mine is just standard, but the others , on the lower left hand side there is a decompression champer, like the secondary ventrical chamber... what the hell is it for??

[davetrees]

Like this ?



I think that type are standard on GCs onwards .... part of the anti-pollution gear.

(The pic is the one on my GB, but it's not the original manifold. I also have a twincarb manifold with the same setup on it)

[shuggy]

yeh wiked cheers. but neither my gc or gd hav it.. just some of the spares i got lying around. think il stik to the orig haha

[Sigmaproject]

That is just an EGR valve. Become part of the polution equipment on cars around the late 70's ,early 80's