FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

5/02/2019 11:24 AM  #1


Oil collecting on Intake Manifold

Hello Everyone,

I used to post here at bit and life got in the way of my project.  A few details about the car:

1966 Coupe, 347 Stroker motor, Trick Flow Stage II cam, Weiand Stealth Intake, AFR 185 heads, Autolite 4100 Carb tuned to this motor and cam profile,T5 Trans with MS ball-bearing clutch pedal, etc.

The current issue is that oil is collecting on the driver's side of the intake after a short drive.  There does not seem to be any oil sneaking out through the valve cover breather or gasket.  Any ideas on how to stop the leak?

Thanks,

-Tim
[img] [/img]
 

 

5/02/2019 11:51 AM  #2


Re: Oil collecting on Intake Manifold

thats coming from the bolt itself thats holding the intake down. you may have to take those bolts off.. best thing would be to take off the manifold, and redo the gasket , as the gasket is letting oil up from the block in close to the bolt, which is seeping up.
You will probably have to use RTV in conjuntion with the gasket to make sure this leaks doesnt happen

MS here is the one who helped me do mine, when I was afraid to take bolts off the car :D :D .. haha . I had similar issues.
 


If it aint broke, I have'nt tried to "Fix" it yet!
 

5/02/2019 11:54 AM  #3


Re: Oil collecting on Intake Manifold

Thanks!  I will get the new gasket and reseal.  Can't have my car leaking oil after all the grief I give my Chevy friends about their oil leaks.

     Thread Starter
 

5/02/2019 12:21 PM  #4


Re: Oil collecting on Intake Manifold

HAHAHA.. I never make that comment, as my 65 used to leak like a sieve. One gasket at a time I am getting it under control :D


If it aint broke, I have'nt tried to "Fix" it yet!
 

5/02/2019 12:43 PM  #5


Re: Oil collecting on Intake Manifold

Hey!  Nice to see another Tim in this Sea of Steves….
Gaba's right about the source of the leak, but I would check the torque on those bolts before taking stuff apart.  Of course, this assumes you would rather drive it, than work on it....  BTW my 289 leaks in the same spot....after making sure intake was torqued properly.  A couple bolts did tighten a bit, and the leak slowed a bit.
 

 

5/02/2019 1:13 PM  #6


Re: Oil collecting on Intake Manifold

Those damn four bolt valve covers.  Only way I found to keep them sealed was to run cast valve covers and rubber/steel gaskets.  The center bolt ones sealed better because they raised the valve cover rails so oil didn't sit against the gaskets. 

We can all agree at least its not a dodge (drops oil drips grease everywhere). 

 

5/03/2019 12:15 AM  #7


Re: Oil collecting on Intake Manifold

Not sure I can tell from the photos you posted, but do you have a PCV valve plumbed to the carb?


Cheap, Fast, Good:  Pick Any Two
 

5/04/2019 10:08 AM  #8


Re: Oil collecting on Intake Manifold

timd66 wrote:

Thanks!  I will get the new gasket and reseal.  Can't have my car leaking oil after all the grief I give my Chevy friends about their oil leaks.

Check out this procedure by MS:
https://www.mustangsteve.com/intake.html
 


68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
 

5/05/2019 2:47 PM  #9


Re: Oil collecting on Intake Manifold

Front seal on the intake manifold can also cause that.  Also distributor seal or timing cover seal.  But the timing cover seal usually also leaves a telltale puddle on the cover itself.   The fan will blow it up and along the valve cover rail.
If bolts are leaking, an aluminum or copper washer will seal them.  Thread sealer MIGHT seal them, but you are screwing them into an oil-covered hole, so don't expect much.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

Board footera


REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.