The Ford Barn - View Single Post - Model A Engine Noise and worn timing gear

Special Coupe Frank · 11-27-2012, 07:33 PM

Sounds like the cam thrust plunger is either stuck in its bore in the timing cover, and/ or the spring behind it is broken.

Replace Cam gear, Thrust plunger, and spring.

Bet your "bearing knock" goes away.

Went through this on my '28 Coupe last summer. Replaced the ancient & failed Fibre gear with an aluminum cam gear, plunger, and spring from Bratton's. No more "bearing knock".

Also no excessive noise from metal cam gear.

11-27-2012, 07:33 PM	#7
Special Coupe Frank Senior Member Join Date: May 2010 Location: Northeast Penna Posts: 2,108	Re: Model A Engine Noise and worn timing gear Sounds like the cam thrust plunger is either stuck in its bore in the timing cover, and/ or the spring behind it is broken. Replace Cam gear, Thrust plunger, and spring. Bet your "bearing knock" goes away. Went through this on my '28 Coupe last summer. Replaced the ancient & failed Fibre gear with an aluminum cam gear, plunger, and spring from Bratton's. No more "bearing knock". Also no excessive noise from metal cam gear.