Welcome to the THE H.A.M.B. forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Go Back   THE H.A.M.B. > General Discussion > The Hokey Ass Message Board

Reply
 
Thread Tools Display Modes
Old 03-06-2009, 09:39 PM   #1
BIGREDTODD
Alliance Member
 
BIGREDTODD's Avatar
 
Join Date: Jan 2007
Location: (JUST OUTSIDE OF) MODESTO, CA
Posts: 2,830
Default Y-Block valve adjustment advice needed

So I read the valve adjusting info in the factory 1956 shop manual, and Ford recommends .019" clearance, while running and warm...

Just wondering how many of you guys do it this way versus cold (static) adjustment while not running?

The subject is my '56 T-bird, 312 c.i. with a mild cam. (solid lifters)

The only reason I ask is I have had similar results doing it both ways on a poly-318, and have heard it done both ways on solid lifter SBC's.

Todd
__________________
1949 Ford 2 door sedan for sale: http://www.jalopyjournal.com/forum/s...d.php?t=869609

Last edited by BIGREDTODD; 03-06-2009 at 10:30 PM.
online   Reply With Quote
Old 03-06-2009, 10:31 PM   #2
BIGREDTODD
Alliance Member
 
BIGREDTODD's Avatar
 
Join Date: Jan 2007
Location: (JUST OUTSIDE OF) MODESTO, CA
Posts: 2,830
Default Re: Y-Block valve adjustment advice needed

Bueller...Bueller?
__________________
1949 Ford 2 door sedan for sale: http://www.jalopyjournal.com/forum/s...d.php?t=869609
online   Reply With Quote
Old 03-07-2009, 12:15 AM   #3
Mike Miller
Alliance Member
 
Mike Miller's Avatar
 
Join Date: Oct 2008
Location: LaPine Oregon
Posts: 1,721
Default Re: Y-Block valve adjustment advice needed

I'm a retired mechanic, that has done many valve grinds on solid lifter engines and I'll tell you first that it is always good to follow the directions in the book. Now I'll tell you what I have learned, on a street engine when I pulled the valve covers and rechecked the lash 9 times out of ten it was not worth burning your fingers, but there is always that one time and I was earning a living so I did it . Just curious, what did you find out about the headers?
__________________
Plan ahead, that way you don't have to do anything right now.
H.A.M.B v8-60 Social Group.
offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 03-07-2009, 03:23 AM   #4
landseaandair
Old School HAMBer
 
landseaandair's Avatar
 
Join Date: Feb 2009
Location: phoenix
Posts: 3,476
Default Re: Y-Block valve adjustment advice needed

I'd just set it with the engine warm and not running. They probably recommend that method just to idiot proof things for the average Joe and avoid the whole discussion on how to make sure the lifters are on the base circle.
offline   Reply With Quote
Old 03-07-2009, 08:16 AM   #5
Duner
FNG
 
Join Date: Oct 2007
Location: Wisconsin
Posts: 39
Default Re: Y-Block valve adjustment advice needed

On my 312 I always set lash with engine at slow idle. I don't have jam nuts on mine so that makes it easier. You also know right now if tappet sound varies. I can adjust mine in a few minutes with engine running.
offline   Reply With Quote
Old 03-07-2009, 08:41 AM   #6
29nash
BANNED
 
Join Date: Nov 2008
Location: colorado
Posts: 4,547
Default Re: Y-Block valve adjustment advice needed

Warmed up, low idle
offline   Reply With Quote
Old 03-07-2009, 11:06 AM   #7
56don
Old School HAMBer
 
56don's Avatar
 
Join Date: Dec 2005
Location: Huntsville Alabama
Posts: 3,976
Default Re: Y-Block valve adjustment advice needed

Don't have it anymore,but when I had a 56 Ford I did it with it running.I liked to hear the difference in the adjustments.
__________________
I'm just an analog guy trying to make it in a digital world.
offline   Reply With Quote
Old 03-07-2009, 05:16 PM   #8
BIGREDTODD
Alliance Member
 
BIGREDTODD's Avatar
 
Join Date: Jan 2007
Location: (JUST OUTSIDE OF) MODESTO, CA
Posts: 2,830
Default Re: Y-Block valve adjustment advice needed

Quote:
Originally Posted by mike Miller View Post
Just curious, what did you find out about the headers?

Thanks for the advice everyone...

Mike, by all the evidence I have, as well as talking to Red's headers, I believe the headers were, in fact, a pre-production set made specifically for the car, later mass-produced. The header flanges on mine matched other early Hedmans, but the production version of my headers had full plate flanges.

Mine are definitely not Red's headers, anfter talking to a tech guy and comparing the headers...
__________________
1949 Ford 2 door sedan for sale: http://www.jalopyjournal.com/forum/s...d.php?t=869609
online   Reply With Quote
Old 03-07-2009, 05:27 PM   #9
Javier
Senior Member
 
Javier's Avatar
 
Join Date: Aug 2008
Location: Austin,Texas
Posts: 1,457
Default Re: Y-Block valve adjustment advice needed

i set mine by the book cold and then went through and double checked on slow idle.good luck.
offline   Reply With Quote
Old 03-07-2009, 10:30 PM   #10
Paul2748
Senior Member
 
Paul2748's Avatar
 
Join Date: Jan 2003
Location: Midland Park, NJ, USA
Posts: 1,527
Default Re: Y-Block valve adjustment advice needed

I set mine cold, not running, about 20/21
__________________
flathead or ovhd- fords only
offline   Reply With Quote
Old 03-07-2009, 10:51 PM   #11
mctim64
Alliance Member
 
mctim64's Avatar
 
Join Date: Dec 2008
Location: California, somewhere just below Fresno.
Posts: 5,591
Default Re: Y-Block valve adjustment advice needed

Quote:
Originally Posted by Paul2748 View Post
I set mine cold, not running, about 20/21
This is the best way I think, an easy way to do it is to run them down to zero lash (TDC comp) then back off 1/4 turn, comes out to .020". One thing, if you shafts are worn out the lash will never read the same twice.
__________________
Y-Block Powered Model A Tudor project http://www.jalopyjournal.com/forum/s...d.php?t=667198


"it looks just like a Tellafunkin U-47"


http://yblockguy.com/
offline   Reply With Quote
Old 05-25-2009, 05:15 PM   #12
chainsaw
Senior Member
 
chainsaw's Avatar
 
Join Date: Aug 2006
Location: Carrollton texas
Posts: 1,088
Default Re: Y-Block valve adjustment advice needed

When you adjust the valves at slow idle, are you still using a feeler gage, or just tighting them down till the ticking stops then backing off 1/4 turn. this is on a 55- 292.Thanks.
offline   Reply With Quote
Old 05-25-2009, 08:23 PM   #13
chainsaw
Senior Member
 
chainsaw's Avatar
 
Join Date: Aug 2006
Location: Carrollton texas
Posts: 1,088
Default Re: Y-Block valve adjustment advice needed

Thanks, the engine is rebuilt but I dont konw how many miles it has on it, guessing less then 10000. It has been sitting for a while and was low on oil when I got it. It is ticking and is getting oil to the rockers, I wanted to make sure you could it that way.
offline   Reply With Quote
Old 05-29-2009, 03:31 PM   #14
chainsaw
Senior Member
 
chainsaw's Avatar
 
Join Date: Aug 2006
Location: Carrollton texas
Posts: 1,088
Default Re: Y-Block valve adjustment advice needed

How loud should the lifters tick on a 292 ford? I got it warm, backed them off till they ticked, tightend them till they got quite then backed off 1/4. I ended up the same as I started, noise wise. Thanks.
offline   Reply With Quote
Old 05-29-2009, 07:59 PM   #15
Javier
Senior Member
 
Javier's Avatar
 
Join Date: Aug 2008
Location: Austin,Texas
Posts: 1,457
Default Re: Y-Block valve adjustment advice needed

Quote:
Originally Posted by chainsaw View Post
When you adjust the valves at slow idle, are you still using a feeler gage, or just tighting them down till the ticking stops then backing off 1/4 turn. this is on a 55- 292.Thanks.
using the feeler gauge
offline   Reply With Quote
Old 05-29-2009, 08:17 PM   #16
BIGREDTODD
Alliance Member
 
BIGREDTODD's Avatar
 
Join Date: Jan 2007
Location: (JUST OUTSIDE OF) MODESTO, CA
Posts: 2,830
Default Re: Y-Block valve adjustment advice needed

Quote:
Originally Posted by rmt View Post
I use the "back off 1/4 turn method" on y-blocks as well. Chances are, on an engine with some miles on it, using a feeler gauge will not give reliable measurements. What I remember is 1/4 turn comes out at something like .0196--- according to the screw pitch. Damned close enough, warm or cold. We're talking tenths (6/10,000ths) and you will be on the fat side cold, just right.
This is what I am going to try...that is, after I replace the pushrods. I found 2 that were slightly bent.

I honestly don't see how the hell anyone does this with the engine running...I am going to give the method above a try...just been working on the truck more the past few weeks.

Appreciate all the input.

Todd
__________________
1949 Ford 2 door sedan for sale: http://www.jalopyjournal.com/forum/s...d.php?t=869609
online   Reply With Quote
Old 05-29-2009, 09:45 PM   #17
Kentuckian
Member
 
Join Date: Nov 2008
Location: Louisville KY
Posts: 595
Default Re: Y-Block valve adjustment advice needed

Set the lash on the exhaust and intake on one cylinder with the engine cold and not running. Warm the engine to operating temperature. Recheck the same exhaust and intake to see if there is any change with the engine up to operating temperature. If there is a difference you can figure out how much they changed. From then on you will know what to allow when adjusting the valves with the engine cold.
__________________
Shoot low, Roy...they're riding Shetlands!
offline   Reply With Quote
Old 05-31-2009, 07:54 PM   #18
Retro Jim
Old School HAMBer
 
Retro Jim's Avatar
 
Join Date: May 2007
Location: Abbottstown , PA
Posts: 3,877
Default Re: Y-Block valve adjustment advice needed

Solid lifters should be set with a feeler gauge and I set mine at .015-.019 . It does not tap either and idles smooth and quiet . That is the most accurate way . Close doesn't work for me !

You don't set solid lifters with the engine running either !
I worked for Ford for many years and never heard of setting solid lifters with the engine running !
Do you think race cars set thier solid lifters with their engines running ? I don't think so !
__________________
J & S Kustom Engines
offline   Reply With Quote
Old 06-01-2009, 06:52 AM   #19
RAY With
Old School HAMBer
 
RAY With's Avatar
 
Join Date: Mar 2009
Location: Montgomery ,Texas
Posts: 3,126
Default Re: Y-Block valve adjustment advice needed

Quote:
Originally Posted by mctim64 View Post
This is the best way I think, an easy way to do it is to run them down to zero lash (TDC comp) then back off 1/4 turn, comes out to .020". One thing, if you shafts are worn out the lash will never read the same twice.
This is the way I always did it and I agree with both of them. I set my Yblock valves at .020 cold and its always ran great.
__________________
http://www.hotrodchat.com/gallery/ 29,660 +pictures and 160 albums and growing-Many HAMB FRIENDLY and some not. Many subjects and many old drag pictures from the 50-60's
offline   Reply With Quote
Old 06-01-2009, 08:41 AM   #20
Ole don
Alliance Member
 
Ole don's Avatar
 
Join Date: Dec 2005
Location: Southern Illinois half way between Benton and DuQuoin
Posts: 2,725
Default Re: Y-Block valve adjustment advice needed

Always set a Y block cold. The way the exhaust manifolds are shaped, any warm method will burn you. Anyone wanting the lengthly discription of how I do it, email me and I will write it out for you. I copied it from the Y Block Magazine.
offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 09:23 PM.