The Ford Barn

W6WR · 12-03-2018, 10:33 PM

Have a 1951 ford flatty need to know if the valve inserts go top or bottom looking in from the top of the valve trane ???

TU W6WR

Tinker · 12-03-2018, 10:45 PM

Huh? please explain?

W6WR · 12-03-2018, 10:49 PM

The round inserts that make the valve spring longer
W6WR

Tinker · 12-03-2018, 10:57 PM

Still not getting it. Maybe someone can help. I'm a bit thick.

flatjack9 · 12-03-2018, 11:08 PM

If you are talking about valve spring shims, they seat on the guide.

51 MERC-CT · 12-04-2018, 08:51 AM

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The washers go between the guide and the spring (head side)
They are used (because of the longer valve) to provide correct valve spring pressure.

JSeery · 12-04-2018, 08:56 AM

Quote:

Originally Posted by W6WR

The round inserts that make the valve spring longer
W6WR

They shorten the valve spring (compress it) to account for valve length. This is all assuming you are referring to the shims, if not really have no idea what you are referring to. What you are attempting to achieve is a specified valve spring pressure in the assembly, say 50 to 60 lbs.

36rgtop · 12-04-2018, 09:14 AM

Quote:

Originally Posted by JSeery

They shorten the valve spring (compress it) to account for valve length. This is all assuming you are referring to the shims, if not really have no idea what you are referring to. What you are attempting to achieve is a specified valve spring pressure in the assembly, say 50 to 60 lbs.

The washers do not shorten the spring but effectively lengthen it to correspond with the added length of the valve to maintain design valve spring pressure.

tubman · 12-04-2018, 09:23 AM

They shorten the length of the actual spring (not counting the shim), but lengthen the effective length of the spring (including the shim). It all depends on how you look at it.

rotorwrench · 12-04-2018, 09:40 AM

Even the term flathead is somewhat broad. Ford made 4-cylinder, 6-cylinder, and two different sizes of V8 not to mention the variations over the years. We can only assume that it's a V8. There are different valves and guides depending on the year of manufacture of the engine too.

1951 narrows it down to 8BA type V8 or H model 6. Are you using a high lift cam? Does this engine have rotator type valves?

JSeery · 12-04-2018, 09:44 AM

Quote:

Originally Posted by tubman

They shorten the length of the actual spring (not counting the shim), but lengthen the effective length of the spring (including the shim). It all depends on how you look at it.

What tubman said.

I guess it may depend on if you are referring to the valve spring or the assembly including the shims.

W6WR · 12-04-2018, 10:00 AM

Tu all w6wr

12-03-2018, 10:33 PM	#1
W6WR Junior Member Join Date: Jul 2017 Posts: 4	valve insert Have a 1951 ford flatty need to know if the valve inserts go top or bottom looking in from the top of the valve trane ??? TU W6WR

12-03-2018, 10:45 PM	#2
Tinker Senior Member Join Date: May 2010 Location: MN Posts: 7,053	Re: valve insert Huh? please explain?

12-03-2018, 10:49 PM	#3
W6WR Junior Member Join Date: Jul 2017 Posts: 4	Re: valve insert The round inserts that make the valve spring longer W6WR

12-03-2018, 10:57 PM	#4
Tinker Senior Member Join Date: May 2010 Location: MN Posts: 7,053	Re: valve insert Still not getting it. Maybe someone can help. I'm a bit thick.

12-03-2018, 11:08 PM	#5
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,527	Re: valve insert If you are talking about valve spring shims, they seat on the guide.

12-04-2018, 08:51 AM	#6
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: valve insert Sponsored Links (Register now to hide all advertisements) The washers go between the guide and the spring (head side) They are used (because of the longer valve) to provide correct valve spring pressure. __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES

12-04-2018, 09:23 AM	#9
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,319	Re: valve insert They shorten the length of the actual spring (not counting the shim), but lengthen the effective length of the spring (including the shim). It all depends on how you look at it.

12-04-2018, 09:40 AM	#10
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: valve insert Even the term flathead is somewhat broad. Ford made 4-cylinder, 6-cylinder, and two different sizes of V8 not to mention the variations over the years. We can only assume that it's a V8. There are different valves and guides depending on the year of manufacture of the engine too. 1951 narrows it down to 8BA type V8 or H model 6. Are you using a high lift cam? Does this engine have rotator type valves?

12-04-2018, 10:00 AM	#12
W6WR Junior Member Join Date: Jul 2017 Posts: 4	Re: valve insert Tu all w6wr