The Ford Barn

DJ S · 09-01-2014, 05:34 PM

Recently my grandfather and I started his tudor that had been sitting in his barn for about 10 years. When we started the engine, we noticed quite a loud engine knock coming from what appears to be the front engine. My grandfather claims the engine wasn't making that noise when he had stored it away. When he changed the oil he checked for any metal shavings and he didn't find any. We've had two people from our local Model A club come and listen to it. Both of them say that the cause of the noise is most likely valves. We plan to take the valve cover off and see if we can find anything wrong. He's never taken the valve cover off previously so we are unsure if it has adjustable tappets as the engine came off an old doodle bug. If someone could tell me the valve clearance specifications and any advice would be greatly appreciated.

700rpm · 09-01-2014, 06:00 PM

I set mine at .011 for intake, .013 for exhaust, on a stock engine, but you'll get all kinds of theories about this.

Tom Wesenberg · 09-01-2014, 06:05 PM

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It might be just a sticking valve, so once it comes loose the adjustment might be OK.

You're doing the right thing to remove the side cover, then spray the valve stems and see if they all close.

09-01-2014, 05:34 PM	#1
DJ S Senior Member Join Date: Aug 2014 Location: Southwick, MA Posts: 590	Engine Knock Recently my grandfather and I started his tudor that had been sitting in his barn for about 10 years. When we started the engine, we noticed quite a loud engine knock coming from what appears to be the front engine. My grandfather claims the engine wasn't making that noise when he had stored it away. When he changed the oil he checked for any metal shavings and he didn't find any. We've had two people from our local Model A club come and listen to it. Both of them say that the cause of the noise is most likely valves. We plan to take the valve cover off and see if we can find anything wrong. He's never taken the valve cover off previously so we are unsure if it has adjustable tappets as the engine came off an old doodle bug. If someone could tell me the valve clearance specifications and any advice would be greatly appreciated.

09-01-2014, 06:00 PM	#2
700rpm Senior Member Join Date: May 2010 Location: Portland, Oregon Posts: 5,913	Re: Engine Knock I set mine at .011 for intake, .013 for exhaust, on a stock engine, but you'll get all kinds of theories about this. __________________ Ray Horton, Portland, OR As you go through life, keep your eye on the donut, not the hole.

09-01-2014, 06:05 PM	#3
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Engine Knock Sponsored Links (Register now to hide all advertisements) It might be just a sticking valve, so once it comes loose the adjustment might be OK. You're doing the right thing to remove the side cover, then spray the valve stems and see if they all close.