Pedal Shaft Seals

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TBill
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Pedal Shaft Seals

Post by TBill » Tue Feb 25, 2020 7:19 am

What’s the consensus on O ring seals on pedal shafts in the hog’s head?

Do it or don’t?

If so, how best?

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Henry K. Lee
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Re: Pedal Shaft Seals

Post by Henry K. Lee » Tue Feb 25, 2020 8:02 am

Keeps them from leaking that is for sure!

Just Sayin'

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Re: Pedal Shaft Seals

Post by Scott_Conger » Tue Feb 25, 2020 10:06 am

Sealing the shafts is a good thing IF you understand that the prevailing trick using O-rings will starve the low pedal shaft of lubrication. It's an inelegant ad-hoc solution relying on uncontrolled compression of the o-ring.

A better solution is to machine the outside of the hogs-head bosses for small lip seals.

In either case, you will also want to watch your reverse and brake cams to see if they get any, or enough oil, or have to provide additional lube as necessary during operation.
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TRDxB2
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Re: Pedal Shaft Seals

Post by TRDxB2 » Tue Feb 25, 2020 11:26 am

Scott_Conger wrote:
Tue Feb 25, 2020 10:06 am
..... In either case, you will also want to watch your reverse and brake cams to see if they get any, or enough oil, or have to provide additional lube as necessary during operation.
Point well taken. Not indicated on the lube chart.
Attachments
Where and when to lubcricate.jpg


Rich Bingham
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Re: Pedal Shaft Seals

Post by Rich Bingham » Tue Feb 25, 2020 11:38 am

Lead in paints and gasoline, asbestos as fireproofing and in friction linings, talc (soapstone) to lubricate inner tubes and in baby powder, oil leaking from automobiles. All commonly encountered fifty years ago, and certainly in the heyday of the Model T. The current generation goes into paroxysms of fear for their lives at their very mention, as if they were to encounter the Black Death, or perhaps more apropos, Ebola or Corona viruses.

Perhaps rightfully so, but from the beginning, Model Ts leaked oil, which was actually to their benefit (within reason). One might as well study on how to keep one’s horse from defecating. :roll:
Last edited by Rich Bingham on Tue Feb 25, 2020 12:05 pm, edited 1 time in total.
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Original Smith
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Re: Pedal Shaft Seals

Post by Original Smith » Tue Feb 25, 2020 11:45 am

I think there is enough of a chamfer on the cams to allow for an O ring?


Dropacent
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Re: Pedal Shaft Seals

Post by Dropacent » Tue Feb 25, 2020 11:52 am

I’ve done it on three engines and well worth the small effort. Larry, I didn’t find the chamfer large enough, but a couple seconds with a large countersink does the trick. It’s a good time to replace the hogshead pedal cams, and the ones supplied by Snyder’s are a fabulous reproduction. Some of the nicest reproduction parts I’ve ever seen.


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Re: Pedal Shaft Seals

Post by tdump » Tue Feb 25, 2020 12:01 pm

Good timeing on this thread as I was wondering what to do in a few weeks when I get to the hogs head on my speedster.I had already about decided to let the dang thing drip if it wanted to as I have taken the pedal shafts out of 1 hoghead once and it was a pain in the "backside".
If you can't help em, don't hinder em'


Dropacent
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OIL. Pedal Shaft Seals

Post by Dropacent » Tue Feb 25, 2020 12:02 pm

And yes, Scott, that’s part of my small oil can routine. Good thing I have a handy dandy spring loaded oil can bracket holding my oil can under my hood ( or headbolt ) ;-)

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Re: Pedal Shaft Seals

Post by BE_ZERO_BE » Tue Feb 25, 2020 12:35 pm

Here are the shaft seals I put on mine.
.
Shaft Seals (Medium) (1).jpeg
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Re: Pedal Shaft Seals

Post by KWTownsend » Tue Feb 25, 2020 9:07 pm

I have used a large tapered reamer and chamfered out the pedal cams and used regular O rings in the past.
Bob, please tell us about the seals you use and your installation technique.

: ^ )

Keith

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Charlie B in N.J.
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Re: Pedal Shaft Seals

Post by Charlie B in N.J. » Tue Feb 25, 2020 9:33 pm

Clean the metal around the shaft extremely well. Perhaps brake cleaaner or some such degreaser. Lightly lube the shaft then apply silicone sealer around the shaft & on the surrounding metal. The silicone wont stick to the shaft but should adhere t the caseing metal if properly cleaned. Let it set up and I'm betting you'll end up with the chepest easiest stop leak fix. Not sure how long it'll last but maybe worth a shot.
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BE_ZERO_BE
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Re: Pedal Shaft Seals

Post by BE_ZERO_BE » Tue Feb 25, 2020 11:48 pm

A machinist friend put them in a 4-jaw and cut the recess for the seal.
The seal is a snug fit installed with Loctite.
It's good to have friends with skills. :D
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TBill
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Re: Pedal Shaft Seals

Post by TBill » Thu Feb 27, 2020 7:55 am

THANKS ALL!!!

And be sure to put a tarp under that horse.

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