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twistedmac247

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Help BBF 460 oil misting out valve cover breather
« on: September 01, 2014, 10:10:55 am »
Is it normal to have some oil come out of the breather?  In my case the oil is getting all over the valve covers and the block and headers it's getting everywhere lol and starting to bug me the motor runs amazing tho no knocking no ticking starts strong and fast gets up a goes quick so is this something I should worry about or just keep adding oil every time I take it out? Could it be I possibly have shitty valve cover vents?  Need help!!?  I really don't wanna rebuild but I'm getting the feeling I'm going to have to?

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #1 on: September 01, 2014, 10:21:59 am »
Is it normal to have some oil come out of the breather?  In my case the oil is getting all over the valve covers and the block and headers it's getting everywhere lol and starting to bug me the motor runs amazing tho no knocking no ticking starts strong and fast gets up a goes quick so is this something I should worry about or just keep adding oil every time I take it out? Could it be I possibly have shitty valve cover vents?  Need help!!?  I really don't wanna rebuild but I'm getting the feeling I'm going to have to?

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Have any pictures of your current set up?

What you are experiencing sounds fairly typical... What kind or RPM's are you seeing? What oil pan, how much and what type oil?

In 99% of all cases, you need to run baffled valve covers with a quality breather. How much oil loss are we talking?

GT

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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

twistedmac247

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #2 on: September 01, 2014, 11:15:07 am »
I don't know what oil pan, the valve covers feel cheap so do the breathers it has royal purple 5-20 he said it takes 7qts he bought everything from summit racing and I see it more so at high rpms shouldn't I be running like a 50w oil?

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #3 on: September 01, 2014, 11:29:47 am »
Going to tell you straight up.

Pull the valve covers and check to see if the have a baffle box in them. Shitcan the breathers you have and plug that port on the base of the carb.

If the valve cover do not have a baffle box, you will be fighting this problem pretty hard, if they do, I would purchase a pair of MOPAR style breathers and install two fittings under the scoop to run the hose from the breathers to the scoop, this will pull the smokey crankcase pressure into the carburetor.

As for the PCV valve on that deal, it is not hurting anything, but only working at a closed throttle idle...

Here are the breathers you need


http://www.summitracing.com/parts/mrg-2059?seid=srese1&gclid=CNziw_TSwMACFZKBfgodQC4AIA

Hopefully this help you out.

Oh yeah, 5-20 is for the Honda car... I would not run anything lighter than 15w-40...  :thumbup:

GT
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

More2LifeThanMPG

  • Karma: +13/-0
Re: Help BBF 460 oil misting out valve cover breather
« Reply #4 on: September 01, 2014, 11:37:35 am »

Going to tell you straight up.

Pull the valve covers and check to see if the have a baffle box in them. Shitcan the breathers you have and plug that port on the base of the carb.

If the valve cover do not have a baffle box, you will be fighting this problem pretty hard, if they do, I would purchase a pair of MOPAR style breathers and install two fittings under the scoop to run the hose from the breathers to the scoop, this will pull the smokey crankcase pressure into the carburetor.

As for the PCV valve on that deal, it is not hurting anything, but only working at a closed throttle idle...

Here are the breathers you need


http://www.summitracing.com/parts/mrg-2059?seid=srese1&gclid=CNziw_TSwMACFZKBfgodQC4AIA

Hopefully this help you out.

Oh yeah, 5-20 is for the Honda car... I would not run anything lighter than 15w-40...  :thumbup:

GT

I also have a 460 and I run a similar set up. My valve covers do have a baffle box, but I don't have two breathers I have a direct line from the carb to one cover... Also I already run 15-40.


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Re: Help BBF 460 oil misting out valve cover breather
« Reply #5 on: September 01, 2014, 11:45:53 am »
I also have a 460 and I run a similar set up. My valve covers do have a baffle box, but I don't have two breathers I have a direct line from the carb to one cover... Also I already run 15-40.


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Sounds about right to me.. Just for reference, if you ever get a whole bunch of oil "up top" the valve cover without the breather can become quite pressurized and blow out the valve cover gasket... Making for a gnarly mess, not to mention a pretty scary smoke show.... If it works, leave it alone...

Just thought I would give the 4-1-1...

BTW, I really do not like the FOMOCO breather block under the carburetor, I just feel that it is wrong because you cannot see if something catastrophic is actually going on. Sort of like out of sight, out of mind.

They work pretty well on a car, way more vacuum to get it to clean up. On a jet, the crankcase pressure is "pushing" into the intake manifold. Just feels, again, wrong.

GT
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

twistedmac247

  • Karma: +0/-0
Re: Help BBF 460 oil misting out valve cover breather
« Reply #6 on: September 01, 2014, 12:32:09 pm »
Tanks a ton for the info I'll get on that soon as possible. And are you talking about the spacer in between the carb and intake manifold?

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #7 on: September 01, 2014, 12:46:14 pm »
Tanks a ton for the info I'll get on that soon as possible. And are you talking about the spacer in between the carb and intake manifold?

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Yes, but I really can't give a really good verifiable reason. Just don't care for the configuration...

Just my personal opinion with some preference sprinkled on it.

GT
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

twistedmac247

  • Karma: +0/-0
Re: Help BBF 460 oil misting out valve cover breather
« Reply #8 on: September 01, 2014, 12:58:37 pm »
Well thank you everything taken into consideration.


has anyone else had this problem?

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ka0tyk

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #9 on: September 01, 2014, 01:16:14 pm »
i used to run a set of breathers like that in my old mustang and they ALWAYS leaked all over.  then i switched to an oil catch can and PCV setup and all was fixed.  its the best of all worlds... you keep the oil from being sucked up into the intake, coating everything and then burned...  and you deal with the positive crank pressure. 
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More2LifeThanMPG

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #10 on: September 01, 2014, 02:30:53 pm »

i used to run a set of breathers like that in my old mustang and they ALWAYS leaked all over.  then i switched to an oil catch can and PCV setup and all was fixed.  its the best of all worlds... you keep the oil from being sucked up into the intake, coating everything and then burned...  and you deal with the positive crank pressure.

You have a picture of such set up, I'm having a little problem fully understanding this set up.


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twistedmac247

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #11 on: September 01, 2014, 03:13:21 pm »

Going to tell you straight up.

Pull the valve covers and check to see if the have a baffle box in them. Shitcan the breathers you have and plug that port on the base of the carb.

If the valve cover do not have a baffle box, you will be fighting this problem pretty hard, if they do, I would purchase a pair of MOPAR style breathers and install two fittings under the scoop to run the hose from the breathers to the scoop, this will pull the smokey crankcase pressure into the carburetor.

As for the PCV valve on that deal, it is not hurting anything, but only working at a closed throttle idle...

Here are the breathers you need


http://www.summitracing.com/parts/mrg-2059?seid=srese1&gclid=CNziw_TSwMACFZKBfgodQC4AIA

Hopefully this help you out.

Oh yeah, 5-20 is for the Honda car... I would not run anything lighter than 15w-40...  :thumbup:

GT

And what do you mean by two fittings under the scoop like a hose from each valve cover to the PCV fitting?


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matches909

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #12 on: September 01, 2014, 03:42:44 pm »
Me and a couple other people are having this issue also and we are trying to find a way to stop it pictures of a setup would be great and we are also both running a 460
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twistedmac247

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #13 on: September 02, 2014, 07:44:28 am »
Anyone?

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Your Mom

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #14 on: September 02, 2014, 07:53:45 am »
The right pan an 1/2 qt+ less than max. I have a pcv on back corner with a regular breather up front on my bbf.  I change the front out once a year. Been working for me

twistedmac247

  • Karma: +0/-0
Re: Help BBF 460 oil misting out valve cover breather
« Reply #15 on: September 02, 2014, 07:56:21 am »
What if I ran both sides to the pcv? Sorry newbie over here

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Your Mom

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #16 on: September 02, 2014, 09:53:09 am »
Pcv is a devise used to suck out fumes at idle. A good set up if you have a hatch an could run a breather with a hose vent on the other side to arrester. If you have an open motor...not really needed. You could close up the rear hole and add a front then run lines to a puke tank. You could also get bolt on breathers and choke them a bit inside. Check and see if your covers have the splash guard underneath vent.  If not you can either buy them or make em.  Make sure you have a good oil and a bit lower than max. Some oils will foam up...  I like VR1 and not just because of the zinc.
« Last Edit: September 02, 2014, 10:00:49 am by Your Mom »
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bbfsouthwind

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #17 on: September 02, 2014, 05:15:17 pm »
Best bet to fix it for now without dis assembling anything is to put a breather on both sides then over the breather run a sports wrist band that's made of cotton for sweat. It will keep the mist down to a minimum for cheap and easy.


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twistedmac247

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #18 on: September 02, 2014, 06:54:29 pm »
Pcv is a devise used to suck out fumes at idle. A good set up if you have a hatch an could run a breather with a hose vent on the other side to arrester. If you have an open motor...not really needed. You could close up the rear hole and add a front then run lines to a puke tank. You could also get bolt on breathers and choke them a bit inside. Check and see if your covers have the splash guard underneath vent.  If not you can either buy them or make em.  Make sure you have a good oil and a bit lower than max. Some oils will foam up...  I like VR1 and not just because of the zinc.

Would a 20w50 be a good oil to run?

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RiverRat474

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #19 on: September 02, 2014, 07:01:09 pm »
I run valvoline VR1 20w50 and yes I also have oil on my valve covers at the end of my day it's the nature of the beast with running open breathers

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twistedmac247

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #20 on: September 02, 2014, 07:09:54 pm »
I just found that I have no baffles in my valve covers and I have some shitty ass breathers and my oil was 5w20 so I will be buying some new covers breathers and oil 

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RiverRat474

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #21 on: September 02, 2014, 07:16:01 pm »
I just found that I have no baffles in my valve covers and I have some shitty ass breathers and my oil was 5w20 so I will be buying some new covers breathers and oil 

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I too have no baffles changing the breathers you have can be a good start just carry a rag to wipe off the oil and yes get rid of the 5w20 it's a big block not a import lol

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jet fever

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #22 on: September 02, 2014, 07:59:44 pm »
The reason is because your engine has too much block pressure most likely from your pump
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twistedmac247

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #23 on: September 02, 2014, 08:01:20 pm »
The reason is because your engine has too much block pressure most likely from your pump

And what should I do to my pump?

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jet fever

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Re: Help BBF 460 oil misting out valve cover breather
« Reply #24 on: September 02, 2014, 08:05:20 pm »
Ask Gt Jets the procedure to adjust the gate valve coming off the pump

Do you have over transom headers?
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