Hi i would like some ideas on this i replaced oil cap breather and pcv valve and still oil  coming out of breather at normal speeds down the road.This has been going on for quiet awhile from the previous qwner had it .Do you think maybe the vent coming out of the top of the valley pan in restricted? Thanx

Views: 84

Reply to This

Replies to This Discussion

All the cars have the same issue. Just take an old sock and cover the cap. That would minimize or completely remove the oil mist. Thick wool-socks would be a good choice. I secure mine with a tie-rap.

You can also steal your wife's or mistress pantyhose...


This is caused by excessive piston blow by. The piston rings are worn allowing too much gas to blow by the rings. 

Check that the PCV valve is sucking, and that oil fill cap is allowing air to be drawn in.  After that, try the sock trick. 

Sounds good it is also leaking oil out of valve covers and oil pan which is that maybe it  sounds like it might be plugged @ the back of the that black fitting coming out of the oil valley cover. The gaskets were replaced by the previous owner as i just recently purchased the car.Motor runs good plenty of power not smoking not fouling plugs. I just replaced oil cap and pcv valve.Thank you

You have too much pressure in the crankcase. Check that the vent tube attachment on the valley cover is not obstructed, and that your pcv valve is good, and that you have good vacuum to the pcv hose coming from the valley cover. Do yourself a favor and read this -> http://mewagner.com/?p=2173

Thank you for your input and information you gave me on my caddy,its much appreciated Thanks again

thank you


Keep an eye on your oils consistency 

Rub the oil between your two  fingers to see how it feels when fresh and then with miles on it 

Blow by is allowing gasoline and combustion residue into the crankcase which can have the effect of causing the oil to thin out which will cause  less than normal lubrication problems as the oil is breaking down and thinning from gasoline getting into it in the crankcase 

More frequent oil changes should help —if oil starts to feel thin between your fingers when you test it 
New piston rings and  or an engine rebuild should be the only solution to worn rings causing the piston blow by 


You are building up gases  and pressure in the crankcase that should not be there which is pushing oil out  of the other engine gaskets and the oil cap 


Thank you

A compression test to determine the health of each cylinder could be a very good idea if you really need to know what is going on with the cylinder ring blow by 





  • Add Photos
  • View All


63 Hydra-Matic won't shift out of first

Started by Norm Waters in 1963/64 Cadillac Specific Discussion. Last reply by Tony and Ginny 429 2 hours ago. 3 Replies

Hello everyone. I had a perfectly good shifting Hydra-Matic transmission until I elected to fix the leak at the dip stick tube. I just did a quick seal with gasket maker since my current tube is…Continue

Rear brake lock up when cold

Started by Cliff Johnston in 1963/64 Cadillac Specific Discussion. Last reply by Tony and Ginny 429 2 hours ago. 1 Reply

Hi everyone, ever since getting the car back on the road, the rear brakes grab when they are cold and I’m moving at slow speed.  Once I get along the road and stop they are fine. I see some posts…Continue

Vacuum advance

Started by Thomas Yarri in 1963/64 Cadillac Specific Discussion. Last reply by Thomas Yarri 14 hours ago. 4 Replies

Good afternoon to all my fellow Cadillac owners! I have a question about the vacuum advance on my car. The car is a 64 without a/c and a Rochester carburetor. I noticed that I have vacuum at the port…Continue

Blog Posts

1963 series 62 convertible transmission issue

Posted by Matthew VanDeWater on June 22, 2021 at 3:03pm 1 Comment

Hello I've been restoring a 63 for way to many years. Down to almost done, but have issue with trans linkage, when column in park shift rod 2 inches short. everything original. been trying to find picture of manual rod hooked up from under car to see position of linkage. was wondering if anybody has access for pictures. I wanted to see if my manual linkage is bent  wrong out of the trans if somebody dropped the trans or something. Doesn't make sense why it doesn't work. Thanks for any input…


New vehicle in the club

Posted by Patrick Westphal on June 17, 2021 at 4:00pm 1 Comment

I was successful in getting a vehicle from the New York contact I talked about at the last club meeting. I am still trying to figure out how to post a picture of the vehicle that is tied with this comment so if you see a random picture of a black convertible in a yard, that's me haha.  …


Torque converter grab when idling in Drive

Posted by Cliff Johnston on June 14, 2021 at 8:47pm 2 Comments

Hi Everyone, been quite a while since i have been on here.

I have had an issue with the idle on my 64 Coupe Deville ever since i have had it.

With the Idle set high enough that it is smooth, but still a nice idle, the RPM seems only slightly too high for the stall of the Torque Converter. And therefore it tends to sit there and grab and lunge a bit. So until now, i have been putting the car in Neutral at the lights to stop this happening.

I've had the car dyno tuned and…


Can you help? Driveshaft Question....

Posted by Chris on May 30, 2021 at 8:55am 1 Comment


Newbie to the group here - we have already found tons of invaluable information on the board, so thanks! We are restoring a 1963 Series 62 Convertible. We are wondering if anyone knows of a source to buy the propellor yoke flange (that bolts to the pinion flange) for the driveshaft? One of our ears partially broke off. Not sure if we can buy just the yoke flange as an aftermarket part, or if it has to be rebuilt by a welder/fab guy? Maybe a salvage yard for a source? Again, any…



  • Add Videos
  • View All

© 2021   Created by Jason Edge.   Powered by

Badges  |  Report an Issue  |  Terms of Service