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Old 01-14-2019, 09:28 PM   #1
oldbike99
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Default Advise for installing camshaft timing gear

As the title says, I am looking for advise on installing the new gear on the camshaft of my Model A. Pressed on, tapped on?

Thank you in advance.
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Old 01-14-2019, 10:25 PM   #2
MAG
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Default Re: Advise for installing camshaft timing gear

It is lightly tapped on.
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Old 01-15-2019, 09:24 AM   #3
George Miller
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Default Re: Advise for installing camshaft timing gear

The cam gear has a big nut holding it on, takes a special wrench to take it off.

Last edited by George Miller; 01-15-2019 at 12:20 PM. Reason: spelling
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Old 01-15-2019, 09:49 AM   #4
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Default Re: Advise for installing camshaft timing gear

Also the torque on that big special nut is a bit of a mystery. I'd swear I read somewhere that it is 100 ft lb. but I can't find it now. Also you can order a modern 6 faced nut from the venders. It is cheaper than the special wrench that the originals take Jack
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Old 01-15-2019, 12:09 PM   #5
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Default Re: Advise for installing camshaft timing gear

Quote:
I'd swear I read somewhere that it is 100 ft lb. but I can't find it now
It's inside the front of Bratton's catalogue.
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Old 01-15-2019, 12:19 PM   #6
Dick Steinkamp
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Default Re: Advise for installing camshaft timing gear

I've taken the stock nut off with a brass drift and a BFH.
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Old 01-15-2019, 08:01 PM   #7
oldbike99
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Default Re: Advise for installing camshaft timing gear

My question is how much force is required to install the new gear on the camshaft? Any precautions?
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Old 01-15-2019, 09:16 PM   #8
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Default Re: Advise for installing camshaft timing gear

Very little force is required to fit the gear to the camshaft. It might even just slip onto the dowels. Otherwise, gentle tapping.
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Old 01-15-2019, 09:59 PM   #9
Purdy Swoft
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Default Re: Advise for installing camshaft timing gear

I can usually slip the cam gear over the cam dowels by hand . There is a slight off set to the cam dowels . The gear can be forced over the dowels wrong so care needs to be taken . I use the hex nut that is listed in Snyders catalog . I don't think that Ford listed torque values for model A bolts or nuts . I think that 100 ft. lbs . torque on the cam nut is a bit excessive . I just use common sense when tightening . Though I have done it before, I don't recommend using a rag between the timing gears to keep them from turning when tightening the cam nut . It is best to remove the side timing cover and use a clamp and wood blocks to hold the cam gear from turning . The rag method puts strain on the gear teeth . If the rag method is used with a fiber cam gear , the gear usually fails quickly . For longer timing gear life , I prefer to use either the bronze or aluminum cam gear .
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Old 01-15-2019, 11:25 PM   #10
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Default Re: Advise for installing camshaft timing gear

I have also tried to find where the 100 ft-lbs came from and could not find the source. The nut is only about .41 thick. The thread diameter is 1.00". In my opinion if you go over about 70 to 75 ft-lbs you may strip the threads off the nut.
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Old 01-17-2019, 04:39 PM   #11
jerry tocci
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Default Re: Advise for installing camshaft timing gear

I did mine by removing valve springs and placing a mirror against radiator and hand crank for alignment
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Old 01-17-2019, 06:06 PM   #12
Dick Steinkamp
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Default Re: Advise for installing camshaft timing gear

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Originally Posted by jerry tocci View Post
I did mine by removing valve springs and placing a mirror against radiator and hand crank for alignment
Why would you remove the valve springs?
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Old 01-17-2019, 09:16 PM   #13
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Default Re: Advise for installing camshaft timing gear

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Originally Posted by Dick Steinkamp View Post
Why would you remove the valve springs?
I was wondering this myself?
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Old 01-21-2019, 12:04 PM   #14
Dan McEachern
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Default Re: Advise for installing camshaft timing gear

There is absolutely no reason to torque the cam nut to 100 ft-lbs or even 75 ft-lbs. Where this cam from, I have no idea, but if it is in Bratton's catalog, I wish they would fix it. The advise to use a clamp on the rim of the gear is what I always recommend to anyone changing a gear in the car.
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