All Sealed Up – Timing Cover

By: Bob Goodson
May 2, 2021

Please subscribe to the YouTube channel if you have not already.  Also, find us on Facebook and Instagram as Purist Motorsports.  Don’t forget to like and share our content.

It’s always good to replace every seal in a motor when you’re tearing into it.  But, it seems that all the motors I’ve worked on the seals will start to leak within a few years.  The manufacturers had it down to the 3 year or 36,000 mile mark for components.  

So we replaced the crank seal in the timing cover.  I was given a tip to wipe the seal with laquer thinner which should help it hold a seal better for the race motor. Prior to that I was advised to wet the seal with a little oil.

Any engine builders out there who want to debunk either one of those suggestions? Feel free to post a comment. The one piece rear main seal of the Ford 302/351 always seems to weep a little.  Even within a few thousand miles.  I’m all ears for ideas on how to keep it dry. 


Submit a Comment

Your email address will not be published. Required fields are marked *

Subscribe To The News for Purists

Join our mailing list to receive the latest news and updates from our content and projects.

You have Successfully Subscribed!