I just found this old autolite 2100 carb , guess from the mid 60's and it has no pcv port on the back. So I was wondering I Could hook the pcv line up to the manifold port on the back of the engine. What do yall think ?

 

i know a pcv port doesnt usually seem to have very powerful vacuum so idk if that would be the best idea or not to put it directly to full vacuum. i dont run a pcv valve its a purposeless one way valve that makes the feds happy, i run both valve covers to my breather or hoses from valve cover breathers elsewhere. i guess you could just run regular valve cover breathers and let them vent but i end up with oil gunk everywhere if i dont direct it away.

 

Ford put a spacer plate between the carb and intake back then with a port on it to connect the PCV hose to. You can find them used on e-bay, i just bought one a couple of days ago to replace a cracked one.

 

So Jim, i dont care for the emissions. Its the gasses in the crankcase that will tear it up. Will hookin the hose from the pcv valve to the breather solve this?

 

You need a proper working pcv. A breather on one cover and a pcv on the other hooked to a manifold vacuum source on the carb or on the intake.
If you don't you make the oil companies happy cause your motor leaks on the ground and you need to buy more oil.
You make the feds happy cause they get more taxes from all the wasted oil you buy.
You're unhappy cause of the oily mess, the stink of oil burning and your wallet is empty.

 

I say same as "RWENUTS" it's a simple devise to have on an engine and works okay. Just check it ever once in a while to see if it's working right and it will help keep the engine clean around the valve covers.___

 

PCV valve works off manifold vacuum, and yes, they do work.

 

granted the rings on my 360 are probably shot, this engine of mine makes quite a bit of crankcase gases. so much in fact the the breather cap on the valve cover would still have soo much oil coming from its hose into the breather that my carb kept gettin oiled up and would backfire once in a while and turn everything in the carb and breather black. with the amount of gasses from one valve cover i concluded that the pcv valve(just a simple one way and once open is the same as not having one at all) really want doin anything for me. i thought id rather have another breather filter(i run the ones that a hose can be attached to not just the open ones). i then had some hoses into the air filter, but when winter time came around the hoses drew too much moisture and had that nasty yellow gunk in them in a day or twos time. so i teed together both breathers and went into a air/oil/water seperator for a small air compressor and then into the pcv port of the carb. this way worked the best overall as i was getting fairly clean gasses into the carb and a slight vacuum on the crankcase which helps the rings stay sealed. for summer now i have taken this off because i want fresh air circulating through the crankcase to make sure stuff stays cooler. i do one valve cover thru the seperator and the other into the breather so that excess pressures can still be sucked in or air can at least come back into the crankcase. basically like its supposed to be only replacing the pcv for the seperator.

keeps my carbs clean!

 

I suggest you overhaul the engine and quit trying to take band aid short cuts. Not what you want to hear I'm sure,but that's the way i see it.

 

thats why theres a 390 in the machine shop bra, nevertheless it works