Timing gear teeth...??

[1955cj5]

Now I remember why I dropped my engineering classes....But thanks for the link..it is interesting...

I just really was hoping someone would take a caliper and measure the width of a tooth on a standard, reasonably new cam gear at the tooth's apex.

I get .109"

 

[1955cj5]

I received the new standard cam gear today and also the new crank gear...


These are going to make a huge difference...

I was getting about .035" of gear lash before...

I get about .015 difference between old and new for the cam gear teeth, and another .016 difference for the crank gear teeth..

That accounts for about .031 and that leaves about .004 which is right in the middle of the "normal" lash range....

You don't even need to measure to see the difference in the cam gear...

 

[1955cj5]

I don't know....it had a "Ford" licensed part sticker on it....maybe you can't trust anything or anybody...

 

[Tom Wesenberg]

I don't know....it had a "Ford" licensed part sticker on it....maybe you can't trust anything or anybody...

That means nothing as far as quality. It means Ford gets a payment for having their name on the package.

 

[1955cj5]

So does someone have an NOS OEM perfect timing gear they would like to send me?

What am I supposed to do????

 

[Mike V. Florida]

Aluminum, brass gears. or just wait until you're ready for the rebuild.

 

[1955cj5]

This is a done deal.....how about a positive comment?

 

[tbirdtbird]

"This is a done deal.....how about a positive comment?"
OK, a positive comment:
Drive it the way you have it!
And then don't come back and complain about what will inevitably happen, positively!

 

[Tom Wesenberg]

For sure now is the time to change that gear to a better one. I'm surprised anyone would still be selling this style that so easily fails. Think of this gear as a sheet of OSB where you have a bunch of wood chips pressed into the shape of a 4 x 8 "hunk of wood" vs. a real sheet of plywood made from laminated layers for strength.

 

[1955cj5]

I'll call Bert's this morning and see what they have to say........I've looked at many of the provided links...it seems failures are pretty common....

First, are there any quality fiber gears out there, and is it certain that this one is NOT a quality fiber gear? My old gear looks like layers of fabric...and as you say this new one does not. But it looks just like the one in the Bratton's catalog....

Bert's sells the aluminum gears....

As Tom said, now is the time...

 

[1955cj5]

OK...Aluminum gear is on it's way.....

And I was going to put the engine together today...

Guess I'll clean the garage....

For what it's worth, Bert's said they get those fiber timing gears from Snyder's....

 

[Tom Wesenberg]

That second picture sure does look like the macerated gear, or dried cow pie composition. I don't have any personal experience with that type, but have seen the failures of others. I've not had a problem with the laminated gear, but the aluminum gear is a very good choice. In fact I bought one at the last swap meet.

 

[1955cj5]

The gear I have and the Bratton gear look to have the same part number....except the Bratton gear has an "L" after the 2718A...L for laminated no doubt..

Here are some better pictures..I took it off...

 

[1955cj5]

OK the fiber is out and the alloy is in......

 

[Mike V. Florida]

OK the fiber is out and the alloy is in......

GREAT!! Now get out there and drive.

 

[1955cj5]

GREAT!! Now get out there and drive.

Might have it together by the weekend.....unless something else comes up!!