BB Timing Cover Leaking
Thread Starter
Instructor
Joined: Nov 2011
Posts: 238
Likes: 30
From: Dallas TX
BB Timing Cover Leaking
The heads are off my '69 427 so there is better access to all around my engine. I notice the front of my engine is grimy, behind the cover, top to bottom. I assume my timing cover is leaking. My oil pan continues to get grimy too.
I do not know if it is loose bolts, a bad seal or a bad harmonic balancer seal.
I searched the archives and read a bunch of old post but most applied to ths SBC.
Should just try to snug up bolts or can I even get to them all?
Is it easy enough to remove the fan, pulleys, etc to remove the cover?
I see where some say you wont be succcessful with a new seal unless you get the pan down?
If i have to drop the pan, is it easy enough with the engine in the car? (Pwr steering car)
I do not know if it is loose bolts, a bad seal or a bad harmonic balancer seal.
I searched the archives and read a bunch of old post but most applied to ths SBC.
Should just try to snug up bolts or can I even get to them all?
Is it easy enough to remove the fan, pulleys, etc to remove the cover?
I see where some say you wont be succcessful with a new seal unless you get the pan down?
If i have to drop the pan, is it easy enough with the engine in the car? (Pwr steering car)
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,334
From: North of Toronto - Ontario
The heads are off my '69 427 so there is better access to all around my engine. I notice the front of my engine is grimy, behind the cover, top to bottom. I assume my timing cover is leaking. My oil pan continues to get grimy too.
I do not know if it is loose bolts, a bad seal or a bad harmonic balancer seal.
I searched the archives and read a bunch of old post but most applied to ths SBC.
Should just try to snug up bolts or can I even get to them all?
Is it easy enough to remove the fan, pulleys, etc to remove the cover?
I see where some say you wont be succcessful with a new seal unless you get the pan down?
If i have to drop the pan, is it easy enough with the engine in the car? (Pwr steering car)
I do not know if it is loose bolts, a bad seal or a bad harmonic balancer seal.
I searched the archives and read a bunch of old post but most applied to ths SBC.
Should just try to snug up bolts or can I even get to them all?
Is it easy enough to remove the fan, pulleys, etc to remove the cover?
I see where some say you wont be succcessful with a new seal unless you get the pan down?
If i have to drop the pan, is it easy enough with the engine in the car? (Pwr steering car)
Replacing the pan/cover seal you'll need to drop the pan, not bad once you get the steering linkage out of the way.
The cover/block gasket might be doable but again, without removing the balancer you'll be trying to clean the old one and sneak a new into a pretty tight space.
Check the bolts for snug but if you go farther plan on getting in a little deeper than you think
M
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
You might want to clean the front of the engine off with a power washer or something like that so you can see where it's leaking. It could be from the front intake manifold gasket or the front of a valve cover. Might be power steering as it's really hard to fill without spilling some. Find the leak first. I have changed the pan gasket on my 69 BB and it wasn't a hard job. If I remember right I just removed the 2 bolts out of the idler arm and lowered it a couple of inches. If it is the pan gasket, do yourself a favor and use one of the new one piece gaskets. Good luck with the leak.
Last edited by CanadaGrant; Jan 24, 2016 at 01:18 PM.
