Replacing the HB, and fixing a leak. Without the Kent-Moore BT-6405 seal installation tool, how do you know how far to install the seal?

455, 1969 442.

As far as seals, I'm looking at National 472082. I have the 1050026 sealer, but what is the lubricant 1050169 that's called out in the 1969 repair manual?

 

I have always installed the seal so the front metal part is about flush with the timing cover.

 

It should actually be slightly past flush, though the reality is that this is not critical. If there is any groove on the HB at all, install a repair sleeve.

 

At this point, I feel compelled to point out that with the HB off, you MIGHTASWELL pull the front cover and replace the timing chain...

 

Yer killin' me, Smalls! But for real, I probably should. Damn I didn't want to drain the cooling system.

 

Lol, see how small jobs just snowball...

 

Wanna see me turn this into a body-off resto?

 

I already have a date with the harmonic balancer and replacing the power steering system. Then I'll be crawling under the dash to straighten out 47 years of wiring no-no's from all the stereos and accessories that someone had wired in. Need new carpet, too. And those bumpers. Trumpets. Paint looks like it was put on with a broom. New new disc rotors/pads. Probably should flush the brake lines. Motor on the rear defroster sings a nice howl when it runs. Doors need re-aligned, then the front fenders/hood. Firewall grommets. For some reason, the car has a lean...not sure what that's about. Yeah, body off, soon enough!

 

Its an affliction, you have the tell tale symptoms.

 

Does the seal come out and go back in without having to remove the timing cover?

 

Yes, in fact the Chassis Service Manual shows you exactly how to do that. Of course, there is a special Kent Moore tool to make this easier, but it can be done without that tool.

The only question you need to ask yourself is, how confident are you in the condition of the timing chain and cam gear?

 

Pretty confident. The engine has less than 1K miles on it. New H B installed when engine rebuilt. It has leaked since day one. BTW, how likely is it that the new H B's "shaft" diameter is not correct? What should it be?

 

If the neoprene is off the the factory timing gear, plan on pulling the oil pan to clean the chunks out of the oil pump pickup screen . It's like hitting a wasp nest with a stick.

 

Or install the seal in a different spot😉.

 

 

Do you know what the actual specified diameter of the H B is?

 

 

Or they neglected to install the oil slinger.

 

okay, thanks!

 

 

There is a career for blue print drawing in your future.

 

 

The material of the seals today isn't as robust as the original seals. I have had more than my share of seal failures after purchasing present day seals. In the end, I sourced NOS seals, installed them, and no more problems. If you still have the original seal, compare it to the replacement and decide for yourself if it is comparable. Sometimes they are, but most of the times, they are not.

 

 

I'm guessing this is in millimeters?

 

 

That sounds like I did the paint job on that one.