May Day !! Down a cylinder

M Brand 505B · 04-29-2014, 09:09 AM

Does your cam have any of the cylinders swapped? I had two plug wires swapped on the dyno and the engine sounded decent but kept fouling out a plug. Also, what kind of top piston ring are you running? My plugs looked like that all the time when I ran a gapless top.

philbilly · 04-29-2014, 09:13 AM

Cam is norm firing order. All plugs look like 1 except 7. 7 doesn't never get hot like the rest. Head scratcher I have wore bald spots in my head since Friday.

Rick Brown · 04-29-2014, 09:21 AM

Give me your phone number so we can talk about it, PM or otherwise! Rick Brown

Billy Nees · 04-29-2014, 09:24 AM

Hey Sparkie, check to make sure that you didn't suck an intake gasket into the port!

philbilly · 04-29-2014, 09:31 AM

859 743 1859.

Mike Pearson · 04-29-2014, 11:14 AM

What does the intake port look like on that cylinder. It could be a small crack or sand pit in the head casting allowing oil to be pulled in to that cylinder. You could do a vacuum check on that port if your machine shop has that type of equipment. You could have a problem with the oil ring in that hole too. It will leak check good even if the oil ring is not sealed. The expander could be lapped over.

R. Thorne · 04-29-2014, 11:26 AM

Phil, is the plug gas fouled (stinks of gas) or oil fouled (you may smell some gas residue but no stronger smell than the other 7 cylinders)? My guess is an overlapped oil ring expander ( especially if it uses those damned Hastings Rings type of expander). Ron.

philbilly · 04-29-2014, 11:32 AM

I believe it oil. It doesn't smell much like gas. I am headed to pressure check some things. Let u know Results shortly.

JimL · 04-30-2014, 12:15 AM

What distributor do you have in it?

SS Engine Guy · 04-30-2014, 03:03 AM

Check valve springs on that cylinder.

04-29-2014, 09:09 AM	#1
M Brand 505B Member Join Date: Jul 2007 Location: Georgia Posts: 158 Likes: 2 Liked 31 Times in 10 Posts	Re: May Day !! Down a cylinder Does your cam have any of the cylinders swapped? I had two plug wires swapped on the dyno and the engine sounded decent but kept fouling out a plug. Also, what kind of top piston ring are you running? My plugs looked like that all the time when I ran a gapless top. __________________ Michael Brand II 505B - F/SA

04-29-2014, 09:13 AM	#2
philbilly Member Join Date: Aug 2011 Location: Demossville,KY Posts: 337 Likes: 0 Liked 0 Times in 0 Posts	Re: May Day !! Down a cylinder Cam is norm firing order. All plugs look like 1 except 7. 7 doesn't never get hot like the rest. Head scratcher I have wore bald spots in my head since Friday.

04-29-2014, 09:21 AM	#3
Rick Brown Junior Member Join Date: Nov 2009 Posts: 59 Likes: 0 Liked 45 Times in 8 Posts	Re: May Day !! Down a cylinder Give me your phone number so we can talk about it, PM or otherwise! Rick Brown

04-29-2014, 09:24 AM	#4
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,481 Likes: 3,581 Liked 7,659 Times in 1,726 Posts	Re: May Day !! Down a cylinder Hey Sparkie, check to make sure that you didn't suck an intake gasket into the port! __________________ Billy Nees 1188 STK, SS I'm not spending 100K to win 2K

04-29-2014, 09:31 AM	#5
philbilly Member Join Date: Aug 2011 Location: Demossville,KY Posts: 337 Likes: 0 Liked 0 Times in 0 Posts	Re: May Day !! Down a cylinder 859 743 1859.

04-29-2014, 11:14 AM	#6
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,441 Likes: 611 Liked 1,909 Times in 573 Posts	Re: May Day !! Down a cylinder What does the intake port look like on that cylinder. It could be a small crack or sand pit in the head casting allowing oil to be pulled in to that cylinder. You could do a vacuum check on that port if your machine shop has that type of equipment. You could have a problem with the oil ring in that hole too. It will leak check good even if the oil ring is not sealed. The expander could be lapped over. __________________ Mike Pearson 2485 SS

04-29-2014, 11:26 AM	#7
R. Thorne Member Join Date: May 2009 Posts: 181 Likes: 57 Liked 99 Times in 32 Posts	Re: May Day !! Down a cylinder Phil, is the plug gas fouled (stinks of gas) or oil fouled (you may smell some gas residue but no stronger smell than the other 7 cylinders)? My guess is an overlapped oil ring expander ( especially if it uses those damned Hastings Rings type of expander). Ron.

04-29-2014, 11:32 AM	#8
philbilly Member Join Date: Aug 2011 Location: Demossville,KY Posts: 337 Likes: 0 Liked 0 Times in 0 Posts	Re: May Day !! Down a cylinder I believe it oil. It doesn't smell much like gas. I am headed to pressure check some things. Let u know Results shortly.

04-30-2014, 12:15 AM	#9
JimL Junior Member Join Date: May 2013 Posts: 70 Likes: 0 Liked 0 Times in 0 Posts	Re: May Day !! Down a cylinder What distributor do you have in it?

04-30-2014, 03:03 AM	#10
SS Engine Guy Member Join Date: Sep 2003 Location: usa Posts: 256 Likes: 1 Liked 1 Time in 1 Post	Re: May Day !! Down a cylinder Check valve springs on that cylinder.