Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> Cures for excesive blowby???
User Name
lost password?   |   register now

Thread: Cures for excesive blowby??? Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
02-04-2012 06:13 AM
Irelands child One PCV and one crankcase vent is all you need - unless there is something wrong internally with that engine - i.e. broken ring(s), sloppy valve guides. As far as buying a 'new' engine, if it wasn't a Ford or Ford Racing Division engine, it's a remanufactured engine from anyone else. This is a Ford Racing 5.0, and absolutely no blow by in several thousand miles.

PCV side

VENT side
02-03-2012 03:46 PM
tjet If that doesn't work, you can try using 1 PCV valve - see this post

2 PCV valves?
02-03-2012 12:14 PM
427feracer Here is the picture of my setup
02-03-2012 12:06 PM
427feracer I went to the o'riellys and bought two pcv valves and a T and hooked both of them up one on each valve cover. So far no blowby and when i bought the engine it came with four holes in the valve covers two in each cover it had three breathers and one pcv that was not the correct style. i replaced the wrong pcv and so far no blowby! ill get you a picture of the setup.
02-02-2012 02:34 AM

it need to breathe more. the engine is closed up to tight. if need be put breathers in valve covers
02-01-2012 10:53 PM
kleen56 You need more than just a PVC. The PVC needs to be connected to the back of the manifold or a plate underneath the carb. The other side of the valve cover needs a breather, or a line going to the air cleaner. You may want to check the PVC as well to see if it's functioning right. Fords need to breath or you'll get blowby..
02-01-2012 10:41 PM
SSedan64 How many miles on it, Engine breakin complete? Rings seated?
Any idea of Piston clearance?
02-01-2012 10:26 PM
Cures for excesive blowby???

I have a 302 ford engine I bought new its been sitting forever and I decided to put it in my mustang and its a strong motor but it somehow has blowby coming out of the dipstick tube and the pcv is not fixing it. If I put a crank evac kit in it will it help eliminate this blowby?

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 06:23 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.