JasonS

iTrader: (62)

I have a 79 w/out the rats nest. How do I run my vacuum hoses from the oil fill tube to the intake manifold if my manifold doesn't have the fittings? Is there another way to prevent the sludge build-up?
Thanks,
~Jason

Dan_s_young

iTrader: (1)

well you can tap your intake a put a fitting in, or I believe some people use a PCV valve? Maybe someone can elaborate more on that.... I actually have the same problem though.

64mgb

iTrader: (1)

I'm working on this problem right now and not sure what to do. There is a lot of info in the FAQs, but there is nothing conclusive. I'm putting a blower on, so I don't have all the vacuum sources available on the stock intake. I believe a PCV requires a vacuum source. I'll keep an eye oin this thread because I'm going to need to do something.

Rich

JasonS

iTrader: (62)

Yeah, post whatever you find out. Will this hurt anything to leave it like it is? I just have small filters on the oil fill tube nipples.

64mgb

iTrader: (1)

From what I've read this should be ok, but some people swear by using vacuum to help suck the fumes out. I don't know what's best. Some people leave them completely open. I plan on leaving one connected to the charcoal cannister but haven't decided what to do with the other one.

Rich

JasonS

iTrader: (62)

See, I don't even have a charcoal canister because I have the RB air cleaner. Anyway, as long as I keep my oil changed should I be okay?

Kentetsu

I just ran a vacuum line from the nipple to the carb spacer and have no issues. If you don't have a vacant vacuum nipple on the spacer, just add a T fitting. I haven't had any sludge issues since I did this, so I believe it fixes the issue.

JasonS

iTrader: (62)

Okay, thanks! Can I put a pcv in line?

rbf41182gt

https://www.rx7club.com/1st-gen-archive-71/fuel-intake-rats-nest-removal-79-rx-7-pictoral-457961/

have you read this thread? I was going to pull the rats nest off but chickened out half way through- i had this quote stuck in my head "if it ain't broke, don't fix it"