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My 1971 521


d.p

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Anyone know the thread/pitch for the PVC bung on the intake manifold?  I deleted all that crap and want to plug that hole with a bolt but I assume its NPT (say that because fastenal couldn't match it) but no idea what size.  

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Anyone know the thread/pitch for the PVC bung on the intake manifold? I deleted all that crap and want to plug that hole with a bolt but I assume its NPT (say that because fastenal couldn't match it) but no idea what size.

Wait are you removing the pcv?

I would keep it.... hook the pcv directly to the crank case vent....

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Wait are you removing the pcv?

I would keep it.... hook the pcv directly to the crank case vent....

 

Might have described it wrong. 

 

Looking for the thread size of the bung on the right side of these manifolds.  TVV?  Not sure what its called.

 

DatsunIntakes01.jpg

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Ordered 1/4” BPST... hopefully it will work.

 

Anyone switched from spiral choke to a single wire one? Or just replaced OEM one? Mine has been acting up and every time I try and fix it it frays and I have to fight it to get it back on my Weber.

 

Now it’s tight to pull and clicks when I push it in. Wondering what my options are?

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Maybe I don't hear so good but my RPMs jump around that much just idling.

When spraying flammable materials around looking for vacuum leaks the engine should noticeably jump up in RPM without a tach to look at, I really didn't hear a noticeable jump in RPMs, are you having a noticeable issue with the engine?

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