View Poll Results: to pcv or not
disconnect pcv hose to stop oil leak
1
14.29%
keep pcv connected and buy more air filters
6
85.71%
Voters: 7. You may not vote on this poll
to pcv or not
Thread Starter
|
Elder User
Joined: Dec 2002
Posts: 550
Likes: 1
From: Effingham,IL USA
to pcv or not
ok my 83 f100's 302 is in need of a rebuild, but i have no place to do it so i'm keepin her runnin on her last leg for a while. the bearings are shot and knock. i run 20w50 oil in it now and run 40w in summer. it has a lot of blowby that oils the air cleaner bad. i'm thinkin about disconnecting the pcv hose from the air cleaner and capping it. this will stop my oil in the air cleaner,but build up blowby gasses in the crankcase a lot more. what i'm worried about is a possible explosion in the crankcase from the blowby. whats everybodies opinions?
New User
Joined: Dec 2002
Posts: 14
Likes: 0
From: USA
to pcv or not
I disagree with both of your solutions. Here is what I did with my old Econoline: 1. run a heater hose from the breather side of your pcv to a home-made holding tank (empty pop bottle), or just run the hose so it pukes oil on the ground. 2. I would hook up your normal breather filter to this setup, as you don't want to suck a bunch of dust or dirt into your engine. The most effective solution to your problem would be to do a ring jobber.
Thread Starter
|
Elder User
Joined: Dec 2002
Posts: 550
Likes: 1
From: Effingham,IL USA
to pcv or not
so your answer would go under disconnect pcv hose, because thats what your doing with that setup you described.i was talking about disconnecting the hose at the air filter or living with the oil in the air cleaner
Posting Guru
Joined: Aug 2002
Posts: 1,214
Likes: 2
From: Minneapolis, MN
to pcv or not
If you must disconnect the breather to the air cleaner, just run the breather filter but don't plug it. Let the blowby escape to somewhere that won't make too much of a mess. Keep the filter on it to trap any dirt that tries to get in when the PCV does exceed the blowby. If you plug the breather the blowby will blow out the main seals or blow oil out the dipstick tube.
Just my 2¢
Greg
Just my 2¢
Greg
Moderator
Joined: Jan 2001
Posts: 56,983
Likes: 2,736
From: Virginia
to pcv or not
With the above solutions, you are really not disconnecting the PCV. I would consider disconnecting the PCV as taking the PCV valve out of the valve cover and carb/manifold connection. The above solutions are just changing where fresh air is brought into the system.
I have done the heater hose to the ground trick several times, with good success, keeping the engine running and not gumming up the carb. And if your engine was as bad as mine, you won't need to worry about putting a filter on the end of the hose. I had so much stuff coming out, there was no way dirt was going to get in there. The engine also uses so much oil, it's not worth changing it, when you add a quart a week.
I have done the heater hose to the ground trick several times, with good success, keeping the engine running and not gumming up the carb. And if your engine was as bad as mine, you won't need to worry about putting a filter on the end of the hose. I had so much stuff coming out, there was no way dirt was going to get in there. The engine also uses so much oil, it's not worth changing it, when you add a quart a week.
Thread Starter
|
Elder User
Joined: Dec 2002
Posts: 550
Likes: 1
From: Effingham,IL USA
to pcv or not
got my "solution" rigged up today. zip tied a coffee can to the fender splash shield and ran a piece of 5/8 tubing from oil fill cap to the coffee can. put a new breather filter on the end of the tube in the bottom of the can. got window screen on top of the filter to catch oil mist. i think that will work fine until rebuild time.whole setup cost me about $3.50. i cleaned out the oil fill cap and there was a LOT of carbon in it. i have more flow now out the oil cap so less pressure in the crankcase now than before. thanks for the ideas everybody
