68" 520 with J15 520 vacuum lines help

[itsallgood]

i have one on:  exhaust manifold, distributor, and webber carb.

 

i also have one on the air filter that i guess go's to the valve cover.

 

any help would be great.

[datzenmike]

There is a hose from the valve cover to the air filter housing. It provides filtered 'make up' air removed by the PCV valve system.

 

There is a hose from the ported outlet on the carb to the vacuum advance on the distributor.

 

I think this is all the 520 had. You say J15 so this is a newer Mexican engine used on several later Datsuns normally run with L Series. So at a guess, if the exhaust pipe is a metal one then this is for a much later EGR set up.

 

Pictures???

[itsallgood]

hear r a few i have on my computer. the truck is in my shop now. so i cant take any pic of the exhaust manifold. 

 

now that i think about it the vaccumee is on the intake manifold not the exhaust.