f134 ventilation

zeke57 · Post by **zeke57** » Wed Sep 25, 2019 10:59 am

I have two f134 engines one a civvy the other military. I see that the military version has a lower ventilation system vs the civvy so would I need to remove that system and add it to my civvy engine or is the civvy lower half ventilated in another way such as through the dip stick tube? I also notice the military valve cover has a ventilation fitting vs the civvy version and the dip stick tube has two fittings vs one on the civvy. So the civvy engine is obviously designed different so I guess my question is is there any benefit to switching the military ventilation parts onto my civvy engine or should I just leave well enough alone? The civvy engine is the one I am using in my project as the military engine is froze up.

Post by **wesk** » Wed Sep 25, 2019 11:07 am

Use of the vent/fording system is up to you. If you want a class resto that is factory correct then match your engine to the vent/fording parts that apply to your jeep's serial number. If accuracy is not an important issue then ignore them.

zeke57 · Post by **zeke57** » Wed Sep 25, 2019 2:46 pm

Wes are you saying that the lower ventilation system is only used in conjunction with the fording system? I was led to believe that this was also to vent the crankcase to prevent blowing any seals and to prevent oil leaks. So if that is not the case and I do not need the lower ventilation system do I only need the vent hose that is attached to the dip stick tube for crankcase ventilation?

Post by **wesk** » Wed Sep 25, 2019 3:33 pm

No, that is now what I said. I will paraphrase this time. Either the civvy or the military vent system will do the same job as a lower crankcase vent. The civvy won't do the military fording system requirement.

So if you are not interested in accuracy then either will work for you and it's your choice.