i bet lots of people have the oil snot on their dipsticks to get rid of it you need some supplies. i know there has been tutorals on this before but i wanted to add some pics

heres the all so important supplies

 

connect the 1/4 hose to the nipple on the oil fill side



then i used the manifold vac (not sure if this was the best way, but oh well.) place the Emission Tee (Napa model # 715-1817) inline with the 3/8 manifold hose and run the 1/4 hose back to the oil fill

 

clamp all connection... even though i didnt (didnt have size i needed so i used zip tights )

My numbers are before i did it

1100rpm idle
16.5 vac
9.0 Air/Fuel Ratio (i know it needs tunning)

After the install

1500rpm idle
15.0 vac
15.8 Air/Fuel Ratio (now i can fine tune it)

i did notice a smoother start up / shut down but i dont know if that has to do directly with the vac connection.

but now i also dont have to worry as much about rust on this inside of my oil filler tube

 

after driving it for awhile my rpm dropped to about 900 and would almost die, it sputters at 1100 so i think im going to run it at 1400rpm i know thats high but i might be missing something like a vac line or my timing might need to be set. it didnt matter how much i adjusted the front rotors carb while tunning unless it was to the extreme, but the back rotor seemed to be carring the work load.... maybe my timming needs adjusted now... not sure why but ill try.

 

Surely your not suggesting that people hook their crankcase breather directly to manifold vacuum?

 

all i did was run a hose from the oil fill tube to a vacuum feed on my carb. everything works fine

 

I think he is. I like having a functioning stock CCV. It removes all traces of moister under the cap.

 

I have some notes here for you.

First, you do have a big vacuum leak. It's coming from the hose going to your oil foller tube! Get thee a Mitsubishi thread-in PCV valve. I like these because you can stuff them in-line in a hose. If your parts store has Taco Bell rejects working the counter and they only know how to say "What year, make, and model?" then say it's for a '92 Caravan with the 3.0l OHC engine. The PCV valve mounts with the threaded end going to the intake manifold and the nipple end going to the oil filler tube.

Second, it's a BAD thing to have the line connected to the power brake hose! Why? If oil gets to the booster assembly, it can damage the diaphragm. So, um, I think there are special filters you can get for the brake booster, if you have no other means of hooking it up to manifold vacuum.

Third... it's an imported car, so for best juju you should be drinking imported beer. I can't find any Japanese stuff at the local kwiki-marts, so generally I go with some Heineken. German engine, German beer, right? Sadly i can't find a way of justifying Killian's or Molson XXX.

 

Dude- It's High Life. Perfect swill for working on cars..
I say paint your car **** yellow to match the beer..

 

uh oh

 

Was that a rhetorical question?

 

OMG peejay that's perfect! Sadly there are fewer and fewer auto parts counter-guys that can actually think. I have at times asked if I can look at their parts bins for what I need.

 

With the following exceptions. Is it really necessary to pick THAT particular PCV? LOL, peejay did you notice his difference in vacuum readings? 'Specially with the difference in idle. Quagmire, your causing negative pressure in your crankcase, which causes more blowby gasses from the combustion chambers, which is veddy veddy BAD! Thats why you need a PCV, it's a glorified restrictor. Back to the disagreement, I drink american pisswater mich light. More $ for teh car. Dem foreign beers are too much dinero.

 

Actually I wanted his reply. I couldnt tell what the shiny tube was. If it was a PCV I would have felt stupid for razzing him.

 

Yah I noticed. Hmm idle speed went up, mixture got lots leaner, and idle vacuum went down.... Clue and a half anyone?

Actually pulling a vacuum in the crankcase is a good thing, if you can pull it off. The oil foams less (less air to foam with) for one thing. If you have a leaky seal, it will leak IN (to the engine) instead of OUT (hosing oil everywhere). For boingers it's an even bigger advantage... less wasted energy from the pistons pumping the air around in the crankcase. BIG advantage there.

But manifold vacuum isn't really the way to do it. That's where header-mounted aspirators or outright belt-driven vacuum pumps come into play.

I *like* that particular PCV. It just works nice. Most other PCVs pop into a bung in the valve cover, which would mean having to modify the oil filler tube to accept the bung, or doing it the Ford way and put the PCV valve IN the filler cap, which means you have to deal with it when you want to add oil.

 

I agree and thats the simplest thing to do.

 

That PCV valve info needs to be added to the FAQ.

 

.... sorry not adding any real value to the thread but as far as beer goes i have never had a jap beer.. nor seen one in person.. but san miguel is a philipino beer and its damn good.

ok back to the intelectual things.

 

beer isn't intellectual?

Killians: $4.99 a six-pack and tastes good too!
Heineken: $6.99 a sixer and it's... Heiny.
Molson XXX: Also $6.99 and it lasts a lot longer too

 

Peejay, how can I do this mod on a carbed SE? I'm using the SE lower manifold and RB upper with a dellorto carb. Theres a nipple fitting 1/4in. I think! On the SE bottom right in the middle top of the lower manifold. I have no clue whats it for. I just capped it when I pulled the nest.



Thanks, Ed

 

Carl, I must challenge your remarks regarding the American pisswater (mich light) although the up front cost of the Molson XXX is noticeably more the alcohol content is 7.5 More bang for your buck – or buzz, less beer consumed higher octane rating.

Regards Tuna

 

thanks for the inline PCV help

I read your email

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quote:
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Originally posted by peejay
If your parts store has Taco Bell rejects working the counter and they only know how to say "What year, make, and model?" then say it's for a '92 Caravan with the 3.0l OHC engine.
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OMG peejay that's perfect! Sadly there are fewer and fewer auto parts counter-guys that can actually think. I have at times asked if I can look at their parts bins for what I need.


__________________

I would be working a parts counter, and I have a degree in auto service, but nooooooooooo....


no way could they have someone who smokes pot working there. dumbasses.

 

Check that nipple to make sure it has manifold vacuum, if it does, you're golden.

Fairly sure it does - I think that's where Mazda got manifold vacuum for the stock ventilation. At least, the 12A manifolds have a nipple right there (right by where rotor 2 is, right?)

 

I have the pcv hooked up to the manifold vac source as per your instructions(threaded end to the manifold and nipple fitting to oil filler. Now can I just leave the hose thats hooked up to the intermediate housing nipple thats hooked up to the canister hard line on the firewall?

Thanks, Ed

 

Ideally you'll want to hook the hose on the intermediate housing up to filtered air. What I've done previously was to hook it up to one of the spare vacuum nipples on the underside of the stock air cleaner, on the filtered-air side of things. A simple breather would work as well.

You just gotta figure that air will be going INTO the engine at that point.