Donki

[Donki]

Can I eliminate carb base insulater plate 80 Datsun 720 an does it take a gasket on manifold before the plate 

[datzenmike]

I wouldn't. It insulates the carburetor from engine heat which is critical in the summer. Yes 2 gaskets, one on either side of the spacer.

 

Carb

Gasket

Spacer

Gasket

Manifold

[Donki]

so gasket goes down on manifold then the thick insulater then gasket then heat shield then gasket then carb is that right 

[datzenmike]

Ah the heat shield...

 

My drawing shows...

 

Carb

gasket

heat shield

spacer

manifold

 

There are different spacers. Some are hard plastic and some are what looks like a multiple thick stack of gaskets. All I can say is you can't go wrong with too many gaskets. If the spacer is hard plastic I would run a thin  gasket on either side of it.

 

 

The same engine used in the '79 620 shows...

 

Carb

spacer... surely this is a 'soft' spacer that acts as it's own gasket as well.

heat shield

gasket

intake.

[Donki]

My spacer is red hard thick material heat shield is thin medal bowl shaped so it can go up the edge of exhaust manifold without touching it the heat shield won't go on manifold first it's bent wrong so the spacer goes on first then shield then carb I'm getting lot of air sucking around it everything is tight I made my own gaskets out of paper gasket material 

[datzenmike]

The '80 diagram isn't easy to see but the '79 is.

 

Carb

gasket

heat shield

________

spacer (wouldn't hurt to have thin gaskets above and below the spacer)

________

intake

[Donki]

That's right now choke is closing when cold slowing opening when warm up but it's not reving high when choke is closed it's staying at same idle dies when u let off throttle