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General Category => Modifications => Topic started by: david f on September 05, 2017, 12:04:26 PM

Title: Crankcase Ventilation
Post by: david f on September 05, 2017, 12:04:26 PM
Hello all. I want to go to 4 individual air cleaners on an 84 FJ1100. What should I do with the crankcase vent tube? Is there a filter or valve that can be installed in that vent hose? Thanks.
Title: Re: Crankcase Ventilation
Post by: Tor-King on September 05, 2017, 12:43:23 PM
Hi David.  Yes, you will need one of these to substitute the airbox deletion:

http://rpmracingca.com/proddetail.asp?prod=Engine%3ABreatherFilter&cat=39 (http://rpmracingca.com/proddetail.asp?prod=Engine%3ABreatherFilter&cat=39)

This is the guy to buy from for all your needs and wants...

Have a good one and welcome,
Dean

Title: Re: Crankcase Ventilation
Post by: aussiefj on November 30, 2017, 06:31:18 AM
Hi David, I have the individual pods on my '93 but found the crankcase filter can get messy after a while and in traffic on a hot day I can smell oily fumes. I have resorted to this expensive set up. An old chammy leather container and about a $1 worth of tubing and some foam off of an old foam filter just to add a bit of restriction between the carbies and crankcase breather. I think this gives a setup similar to the original airbox system.
Title: Re: Crankcase Ventilation
Post by: FJmonkey on November 30, 2017, 09:29:02 AM
An option that Randy at RPM showed me was to place the breather filter up between the intakes of carbs 3&4. As vapor escapes, the carbs suck it back in much like the air box set up.
Title: Re: Crankcase Ventilation
Post by: JMR on November 30, 2017, 10:40:45 AM
Quote from: FJmonkey on November 30, 2017, 09:29:02 AM
An option that Randy at RPM showed me was to place the breather filter up between the intakes of carbs 3&4. As vapor escapes, the carbs suck it back in much like the air box set up.
That's what I do.