The Ford Barn

Fred K-OR · 11-07-2017, 07:19 PM

Sorry to say the earlier comments I made about solving my Knock Knock problem did not solve the problem. Within a short period of time running around, the old knock came back.

So I took things apart again-carb off, manifold off, valve plate cover off and checked things out again. Checked the valve clearance on the tappets and things seemed to be about the same as there were when I worked on them before.

But when I was checking things, I was turning the engine back and forth with the timing wrench to get the valves right in the correct spot. When doing this I discovered old valve # 6 giving up a "click". It would happen when I would move the engine back and forth with the timing wrench when I had the tappet to the highest point (valve completely open). I would move the engine, the tappet would twist around and "click". I did this a number of times and the same thing happened.

So----not knowing anything about what I was suppose to do in a situation like this, I figured I would adjust #6 tappet. So I set it a little tighter(closer together). Well, trying my procedure mentioned above (using the timing wrench) wow-- the "click" stopped! The tappet still turned around as I moved the engine but the click seems to be gone!

So--- help again. Anyone have a similar experience with this type of situation? Am I dreaming that I have solved my "click" problem? Any other comments that may set me straight? Please help if all this rambling makes sense and what I did is a valid fix.

Thanks again.

Gary WA · 11-07-2017, 07:29 PM

Marvel Mystery Oil in fuel.!!! Lubrication!!! Ethanol Gas is Dry as you may know! Sounds like you fixed it! Did you drive it yet? How tight is tight?

Fred K-OR · 11-07-2017, 08:27 PM

Did not get it to tight. It was .016.

Chuck Sea/Tac · 11-07-2017, 09:07 PM

It was .”16” , or you set it at .016”?

Fred K-OR · 11-07-2017, 09:20 PM

Guess I had better go check my record in the shop. The
old brain can't remember the details!!

Fred K-OR · 11-08-2017, 11:22 AM

Sponsored Links (Register now to hide all advertisements)

I set it at .016. It was at about .020. Now it seems to not click when I turn engine with timing wrench.

Now I am waiting to get another manifold before putting it back together to see how it works.

denniskliesen · 11-08-2017, 12:27 PM

Have you done a compression test?

Jw · 11-08-2017, 12:42 PM

is the oil dip tray loose in the oil pan, sometimes they pop out a bit and the lower end of the connecting rod may be hitting it.

J Franklin · 11-08-2017, 12:55 PM

Seems like it still has too much clearance. Check a good source for the correct clearance. Mine are set quite a bit closer and I have had no problems.

Fred K-OR · 11-08-2017, 01:06 PM

Quote:

Originally Posted by denniskliesen

Have you done a compression test?

Yes, and they are all about in the 70' s

Fred K-OR · 11-08-2017, 01:08 PM

Quote:

Originally Posted by Jw

is the oil dip tray loose in the oil pan, sometimes they pop out a bit and the lower end of the connecting rod may be hitting it.

Interesting thought. May end up having to check this.

Fred K-OR · 11-08-2017, 01:12 PM

Quote:

Originally Posted by J Franklin

Seems like it still has too much clearance. Check a good source for the correct clearance. Mine are set quite a bit closer and I have had no problems.

When it warms up a little in the shop, I will have to check the rest of them.

SeaSlugs · 11-08-2017, 01:13 PM

so the tappet is rotating in its hole? Doesn't seem right - only way that would happen is if the cam lobe or tappet is worn uneven / not parallel to each other.

Intake valves ideally would be .013" and exhaust .015"

http://www.fordgarage.com/pages/ruleofnine.htm

I set mine at those specs and runs great.

I have heard a dip tray get loose - made an intermittent metallic sheetmetal clicking noise as it got loose near the front of the engine. Coulda sworn it was plunger noise or gear slop. Would only make noise upon hard deceleration or fast idle haha

Fred K-OR · 11-08-2017, 01:20 PM

"so the tappet is rotating in its hole? Doesn't seem right - only way that would happen is if the cam lobe or tappet is worn uneven / not parallel to each other."

I was wondering about something like this sort of thing happening. Does it cause major problems as times go on?

Tom Wesenberg · 11-08-2017, 01:48 PM

Tappets need to rotate as the cam turns or they will wear a concave line across where the lobe strike the face of the tappet.

Dave in MN · 11-08-2017, 03:25 PM

Quote:

Originally Posted by Tom Wesenberg

Tappets need to rotate as the cam turns or they will wear a concave line across where the lobe strike the face of the tappet.

Ditto!

Fred K-OR · 11-08-2017, 04:51 PM

Quote:

Originally Posted by Tom Wesenberg

Tappets need to rotate as the cam turns or they will wear a concave line across where the lobe strike the face of the tappet.

Tom, thanks for the info. I did notice that a number of them did rotate as I turned the engine around.

But the thing that seemed strange is that the #6 did rotate but as it rotated around it "clicked". And I would rotate the engine back and forth with the timing wrench, and it would "click" each time I went back and forth. Is there something that would cause this or am I "hearing things"? I am far from an expert on these things and hope I am saying something that makes sense to someone.

1931 flamingo · 11-08-2017, 06:20 PM

If adj the clearance to .016 got rid of the click why would you even entertain the thought of ck'ng the dipper tray??
Paul in CT

James Rogers · 11-09-2017, 06:42 AM

Quote:

Originally Posted by SeaSlugs

so the tappet is rotating in its hole? Doesn't seem right - only way that would happen is if the cam lobe or tappet is worn uneven / not parallel to each other.

Intake valves ideally would be .013" and exhaust .015"

http://www.fordgarage.com/pages/ruleofnine.htm

I set mine at those specs and runs great.

I have heard a dip tray get loose - made an intermittent metallic sheetmetal clicking noise as it got loose near the front of the engine. Coulda sworn it was plunger noise or gear slop. Would only make noise upon hard deceleration or fast idle haha

The lifters (tappets) should always rotate when the cam is turned. If they don't, the cam is ground incorrectly or worn out.

Tom Wesenberg · 11-09-2017, 12:26 PM

The click might be caused by a valve hanging up slightly, then letting go. I'd run some MMO in your gas and a can of Sea Foam in the oil, or a can of Sea Foam in both gas and oil to see if that helps. It sure fixed an Olds I once bought cheap due to clicking tappets.

11-07-2017, 07:19 PM	#1
Fred K-OR Senior Member Join Date: May 2010 Location: Stayton, Oregon Posts: 3,806	Knock Knock (again) Sorry to say the earlier comments I made about solving my Knock Knock problem did not solve the problem. Within a short period of time running around, the old knock came back. So I took things apart again-carb off, manifold off, valve plate cover off and checked things out again. Checked the valve clearance on the tappets and things seemed to be about the same as there were when I worked on them before. But when I was checking things, I was turning the engine back and forth with the timing wrench to get the valves right in the correct spot. When doing this I discovered old valve # 6 giving up a "click". It would happen when I would move the engine back and forth with the timing wrench when I had the tappet to the highest point (valve completely open). I would move the engine, the tappet would twist around and "click". I did this a number of times and the same thing happened. So----not knowing anything about what I was suppose to do in a situation like this, I figured I would adjust #6 tappet. So I set it a little tighter(closer together). Well, trying my procedure mentioned above (using the timing wrench) wow-- the "click" stopped! The tappet still turned around as I moved the engine but the click seems to be gone! So--- help again. Anyone have a similar experience with this type of situation? Am I dreaming that I have solved my "click" problem? Any other comments that may set me straight? Please help if all this rambling makes sense and what I did is a valid fix. Thanks again. __________________ Fred Kroon 1929 Std Coupe 1929 Huckster

11-07-2017, 08:27 PM	#3
Fred K-OR Senior Member Join Date: May 2010 Location: Stayton, Oregon Posts: 3,806	Re: Knock Knock (again) Did not get it to tight. It was .016. __________________ Fred Kroon 1929 Std Coupe 1929 Huckster Last edited by Fred K-OR; 11-08-2017 at 11:23 AM.

11-07-2017, 09:07 PM	#4
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,354	Re: Knock Knock (again) It was .”16” , or you set it at .016”?

11-07-2017, 09:20 PM	#5
Fred K-OR Senior Member Join Date: May 2010 Location: Stayton, Oregon Posts: 3,806	Re: Knock Knock (again) Guess I had better go check my record in the shop. The old brain can't remember the details!! __________________ Fred Kroon 1929 Std Coupe 1929 Huckster

11-08-2017, 12:27 PM	#7
denniskliesen Senior Member Join Date: Nov 2016 Location: SoCal Posts: 877	Re: Knock Knock (again) Have you done a compression test?

11-08-2017, 11:22 AM	#6
Fred K-OR Senior Member Join Date: May 2010 Location: Stayton, Oregon Posts: 3,806	Re: Knock Knock (again) Sponsored Links (Register now to hide all advertisements) I set it at .016. It was at about .020. Now it seems to not click when I turn engine with timing wrench. Now I am waiting to get another manifold before putting it back together to see how it works. __________________ Fred Kroon 1929 Std Coupe 1929 Huckster

11-08-2017, 12:42 PM	#8
Jw Senior Member Join Date: Oct 2013 Posts: 110	Re: Knock Knock (again) is the oil dip tray loose in the oil pan, sometimes they pop out a bit and the lower end of the connecting rod may be hitting it.

11-08-2017, 12:55 PM	#9
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,963	Re: Knock Knock (again) Seems like it still has too much clearance. Check a good source for the correct clearance. Mine are set quite a bit closer and I have had no problems.

11-08-2017, 01:13 PM	#13
SeaSlugs Senior Member Join Date: May 2010 Location: Central, IL Posts: 3,968	Re: Knock Knock (again) so the tappet is rotating in its hole? Doesn't seem right - only way that would happen is if the cam lobe or tappet is worn uneven / not parallel to each other. Intake valves ideally would be .013" and exhaust .015" http://www.fordgarage.com/pages/ruleofnine.htm I set mine at those specs and runs great. I have heard a dip tray get loose - made an intermittent metallic sheetmetal clicking noise as it got loose near the front of the engine. Coulda sworn it was plunger noise or gear slop. Would only make noise upon hard deceleration or fast idle haha __________________ 1929 Model AA - Need long splash aprons! Last edited by SeaSlugs; 11-08-2017 at 01:18 PM.

11-08-2017, 01:20 PM	#14
Fred K-OR Senior Member Join Date: May 2010 Location: Stayton, Oregon Posts: 3,806	Re: Knock Knock (again) "so the tappet is rotating in its hole? Doesn't seem right - only way that would happen is if the cam lobe or tappet is worn uneven / not parallel to each other." I was wondering about something like this sort of thing happening. Does it cause major problems as times go on? __________________ Fred Kroon 1929 Std Coupe 1929 Huckster

11-08-2017, 01:48 PM	#15
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Knock Knock (again) Tappets need to rotate as the cam turns or they will wear a concave line across where the lobe strike the face of the tappet.

11-08-2017, 06:20 PM	#18
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: Knock Knock (again) If adj the clearance to .016 got rid of the click why would you even entertain the thought of ck'ng the dipper tray?? Paul in CT

11-09-2017, 12:26 PM	#20
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Knock Knock (again) The click might be caused by a valve hanging up slightly, then letting go. I'd run some MMO in your gas and a can of Sea Foam in the oil, or a can of Sea Foam in both gas and oil to see if that helps. It sure fixed an Olds I once bought cheap due to clicking tappets.