Crankcase Vent

Diesel Dude · 03-24-05, 01:41 PM

Hello
I am having trouble with my crankcase vent it is making an awfull mess of the underside of my cruiser( BJ42) I would like to make a catch can. I was wondering if some of you have done this and if you coulds post some pictures.
Thanx

cruiser_guy · 03-24-05, 01:46 PM

Is oil leaking out of the pipe or is the gasket on the rocker cover leaking? Those rocker cover gaskets often leak.

Diesel Dude · 03-24-05, 01:47 PM

Its comin out of the pipe its a brand new motor so Ive been making sure to watch all the gaskets and they are all dry.

cruiser_guy · 03-24-05, 01:55 PM

I've always had a few drops from the pipe, but no large amount of oil. That pipe is the crankcase ventilation. I read somewhere about some fancy filter and oil drainback but that seems like a lot of work for little benefit.

brownbear · 03-24-05, 02:03 PM

I've read in a post in here somewhere about running it up to the intake. then it just gets burned up. instead of going onto the turning ujoint. and spraying everwhere. don't know if the intake suction would cause any problems for a venting action.

Ive seen a mist at times come out of mine.

David*BJ70 · 03-24-05, 02:54 PM

Quote:

Originally Posted by brownbear

I've read in a post in here somewhere about running it up to the intake. then it just gets burned up. instead of going onto the turning ujoint. and spraying everwhere. don't know if the intake suction would cause any problems for a venting action.

Ive seen a mist at times come out of mine.

Is that link are the thread your are talking about... http://forum.ih8mud.com/diesel-tech-24-volts-systems/23899-what-pipe.html

that was my thread and I erase the picture... but the information still good

Bye

brownbear · 03-24-05, 09:57 PM

I might do that, cut it off short and run up to the intake(post filter)

David are you running that now? if so any drawback?? any problems.

BJ40 3B · 03-25-05, 06:17 AM

In a B or 3B engine with turbo and intercooler where should i connect the crankcase vent? pre turbo, after the turbo or after the intercooler?

David*BJ70 · 03-25-05, 06:28 AM

Quote:

Originally Posted by brownbear

I might do that, cut it off short and run up to the intake(post filter)

David are you running that now? if so any drawback?? any problems.

No...

I ask this because some little smoke was going out from my BJ60 engine. I don't use it any more... it's for sale...

But now, my BJ70 don't make any smoke by this pipe... so I cancel the project !

But in the furur... if I see the same smoke going out from my BJ70, I will try to make it.

Hope it's not tomorow

Diescipel · 03-25-05, 08:25 AM

On another post (maybe it's the one David cites) somebody said they run a tube from the end of the breather tube into the frame rail for a little extra rust prevention.

B

70sguy · 03-25-05, 09:28 AM

wayne here again, stealing access from Sheldon
i want you to think this through, where do you think you should run the CV tube?
if you run it after the turbo then you will be aplying 8-13 lbs of pressure exerted by the turbo into crankcase thus PRESSURIZING the crankcase. run the CV vent to the pre turbo side adn the turbo will attomize the oil and discarge it out the exhaust after it has had a chane to burn much of it in the combustion process....
cheers

brownbear · 03-25-05, 01:42 PM

the frame rail idea sounds decent. too bad I am past the first rust stage!!!

Greg_B · 03-25-05, 03:08 PM

No no no....

Acid oil...

I ran the BB tube into the framerail on my BJ42. Frame had been dipped, epoxy primed and endura painted. All seams had been body caulking sealed after priming. The acidy oil caused the caulking to swell.

Oil from the vapour will build up, and drip out any drain holes as well.

Best would be to route it into the intake air, post filter, and if you have a turbo...pre turbo.

gb

BJ40 3B · 09-11-05, 09:16 AM

This is how i made the crankcase vent for the 3B engine... So far so good, and NO oil in the turbo, at least for now!

Diesel Dude · 09-11-05, 06:44 PM

that looks very nice and clean I might have to do a similar thing there. Hey can you tell me about that intercooler?

smcruisin · 09-13-05, 06:10 PM

Just harbouring a guess, but the end tank looks like the intercooler out of my brother's 7M-GTE supra (except mounted vertically rather than horizontally).

crushers · 09-13-05, 08:28 PM

Quote:

Originally Posted by BJ40 3B

This is how i made the crankcase vent for the 3B engine... So far so good, and NO oil in the turbo, at least for now!

looks real nice and clean,
congrates

cheers

BJ40 3B · 09-15-05, 08:31 AM

The intercoler is from a Mitsubishi Pajero DID (Pajero in Portugal, but in some countries they have the name of Montero or Shogun).
I had to cut the aluminium connections for the rubber hoses and turn them so they are pointed to the places i wanted and get it welded again. in order to fit the intercooler and oil cooler in front of the water cooler, i've moved the water cooler almost 10cm to the rear and a little to the right (it had to be moved to the right in order to install a 70 series power steering, for me the best power steering application for a 40series using toyota parts).

Diesel Dude · 09-15-05, 09:18 AM

Where are you batteries? Did you take the fan shroud right out or just cut it?

03-24-05, 01:41 PM	#1
Diesel Dude IH8MUD Junior Join Date: Mar 2005 Location: Calgary TLCA# 11470 Posts: 154	Crankcase Vent Hello I am having trouble with my crankcase vent it is making an awfull mess of the underside of my cruiser( BJ42) I would like to make a catch can. I was wondering if some of you have done this and if you coulds post some pictures. Thanx __________________ 1982 BJ-42 TURBO 98 Dodge neon R/T

03-24-05, 01:46 PM	#2
cruiser_guy IH8MUD Lifer Join Date: Jan 2003 Location: Mixco, Guatemala/Cranbrook & Vancouver, B.C., Canada TLCA# 16387 Posts: 7,362	Is oil leaking out of the pipe or is the gasket on the rocker cover leaking? Those rocker cover gaskets often leak. __________________ '82 BJ60 H55 tranny, AXT turbo 3B diesel, high nickel alloy head, A/C, BDS lift, factory PTO, Aussie rear locker, OEM LSD front, 4:11's, 32's, PERFECT frame! '76 FJ55, 3B turbo, alloy head, H41 tranny, 3 sp. transfer, 33's, A/C, PTO winch, long range tank! '67 FJ45LV shop project c/w 3B turbo diesel transplant & H41 4 speed, 3 speed transfer, PTO! www.wirrell.com

03-24-05, 01:47 PM	#3
Diesel Dude IH8MUD Junior Join Date: Mar 2005 Location: Calgary TLCA# 11470 Posts: 154	Its comin out of the pipe its a brand new motor so Ive been making sure to watch all the gaskets and they are all dry. __________________ 1982 BJ-42 TURBO 98 Dodge neon R/T

03-24-05, 01:55 PM	#4
cruiser_guy IH8MUD Lifer Join Date: Jan 2003 Location: Mixco, Guatemala/Cranbrook & Vancouver, B.C., Canada TLCA# 16387 Posts: 7,362	I've always had a few drops from the pipe, but no large amount of oil. That pipe is the crankcase ventilation. I read somewhere about some fancy filter and oil drainback but that seems like a lot of work for little benefit. __________________ '82 BJ60 H55 tranny, AXT turbo 3B diesel, high nickel alloy head, A/C, BDS lift, factory PTO, Aussie rear locker, OEM LSD front, 4:11's, 32's, PERFECT frame! '76 FJ55, 3B turbo, alloy head, H41 tranny, 3 sp. transfer, 33's, A/C, PTO winch, long range tank! '67 FJ45LV shop project c/w 3B turbo diesel transplant & H41 4 speed, 3 speed transfer, PTO! www.wirrell.com

03-24-05, 02:03 PM	#5
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,183	I've read in a post in here somewhere about running it up to the intake. then it just gets burned up. instead of going onto the turning ujoint. and spraying everwhere. don't know if the intake suction would cause any problems for a venting action. Ive seen a mist at times come out of mine. __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

03-24-05, 09:57 PM	#7
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,183	I might do that, cut it off short and run up to the intake(post filter) David are you running that now? if so any drawback?? any problems. __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

03-25-05, 06:17 AM	#8
BJ40 3B IH8MUD Junior Join Date: Aug 2003 Posts: 87	In a B or 3B engine with turbo and intercooler where should i connect the crankcase vent? pre turbo, after the turbo or after the intercooler?

03-25-05, 08:25 AM	#10
Diescipel IH8MUD Addict Join Date: Sep 2004 Location: 95570 TLCA# 14854 Posts: 841	On another post (maybe it's the one David cites) somebody said they run a tube from the end of the breather tube into the frame rail for a little extra rust prevention. B __________________ Brendan 1983 BJ42 bioD, lots o' Aqualu, TIC Parabolics/DT8000s, Tuffy, 33x9.5 BFG ATs, SOLD

03-25-05, 09:28 AM	#11
70sguy IH8MUD Addict Join Date: Nov 2003 Location: Greendale B.C Canada Posts: 563	wayne here again, stealing access from Sheldon i want you to think this through, where do you think you should run the CV tube? if you run it after the turbo then you will be aplying 8-13 lbs of pressure exerted by the turbo into crankcase thus PRESSURIZING the crankcase. run the CV vent to the pre turbo side adn the turbo will attomize the oil and discarge it out the exhaust after it has had a chane to burn much of it in the combustion process.... cheers __________________ 93 1HD-T powered FZJ80-Extreme valve body-Walbro-ARB- Snork-OME- SOLD! 97 FZJ80 Antique Sage 40th, bone stock. 1HD-FT 5spd conversion starting soon VW A4 Jetta TDI My other diesel is a Locomotive www.gscruiserparts.com

03-25-05, 01:42 PM	#12
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,183	the frame rail idea sounds decent. too bad I am past the first rust stage!!! __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

03-25-05, 03:08 PM	#13
Greg_B IH8MUD Lifer Join Date: Mar 2002 TLCA# 7091 Posts: 3,075	No no no.... Acid oil... I ran the BB tube into the framerail on my BJ42. Frame had been dipped, epoxy primed and endura painted. All seams had been body caulking sealed after priming. The acidy oil caused the caulking to swell. Oil from the vapour will build up, and drip out any drain holes as well. Best would be to route it into the intake air, post filter, and if you have a turbo...pre turbo. gb __________________ WANT A TOYOTA DIESEL ENGINE? Join the Import Vehicle Owners Association of Canada: Fight for what is right Canadian Vehicle Importers and Suppliers: Join the CAVI TLCA#7091

09-11-05, 09:16 AM	#14
BJ40 3B IH8MUD Junior Join Date: Aug 2003 Posts: 87	3B Crankcase vent This is how i made the crankcase vent for the 3B engine... So far so good, and NO oil in the turbo, at least for now! Attached Images

09-11-05, 06:44 PM	#15
Diesel Dude IH8MUD Junior Join Date: Mar 2005 Location: Calgary TLCA# 11470 Posts: 154	that looks very nice and clean I might have to do a similar thing there. Hey can you tell me about that intercooler? __________________ 1982 BJ-42 TURBO 98 Dodge neon R/T

09-13-05, 06:10 PM	#16
smcruisin IH8MUD Junior Join Date: Oct 2002 Location: Vancouver, BC, Canada Posts: 187	Just harbouring a guess, but the end tank looks like the intercooler out of my brother's 7M-GTE supra (except mounted vertically rather than horizontally). __________________ The Turbocharger: a replacement for displacement estimated time to complete a truck project X 3 + 1 year = actual time required to complete said truck project... '81 BJ-42 restoration nearing completion

09-15-05, 08:31 AM	#18
BJ40 3B IH8MUD Junior Join Date: Aug 2003 Posts: 87	Intercooler The intercoler is from a Mitsubishi Pajero DID (Pajero in Portugal, but in some countries they have the name of Montero or Shogun). I had to cut the aluminium connections for the rubber hoses and turn them so they are pointed to the places i wanted and get it welded again. in order to fit the intercooler and oil cooler in front of the water cooler, i've moved the water cooler almost 10cm to the rear and a little to the right (it had to be moved to the right in order to install a 70 series power steering, for me the best power steering application for a 40series using toyota parts).

09-15-05, 09:18 AM	#19
Diesel Dude IH8MUD Junior Join Date: Mar 2005 Location: Calgary TLCA# 11470 Posts: 154	Where are you batteries? Did you take the fan shroud right out or just cut it? __________________ 1982 BJ-42 TURBO 98 Dodge neon R/T

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