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Username Post: Setting valves        (Topic#348979)
Gaspains 
"4th Year" Gold Supporting Member
Posts: 253
Gaspains
Loc: Mankato, MN
Reg: 11-23-09
01-02-18 05:29 PM - Post#2719815    

I've always had the engine running any time I set valves in the past. It can be messy! I hate to get oil all over a fresh restoration. It didn't matter so much in the past.

Has anyone set intake and exhaust with the engine stopped, rotating the crank and adjusting in sequence?

If so, how did it work out? Any pointers?

Kevin
1965 Impala SS Coupe
Regal Red with Black Interior
L74 327
M-20
3.31 One-wheel wonder, 12 bolt

65-66 FSCC #512


 
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space66 
Contributor
Posts: 624
space66
Loc: montreal
Reg: 06-01-16
01-02-18 06:17 PM - Post#2719822    
    In response to Gaspains

usually do it on a fresh start-up ,some times it works and some times it doesn't, depends how used the parts are. (1/2,3/4,1 turn) so final tweak will be running. you can get old valve covers and cut an opening ,not as messy.

here's some good info on it,no spinning, up/down

http://berlinetta.info/Lash.htm

1966 impala convertible 283*pg-396*th350


 
models916 
Valued Contributor
Posts: 4774

Age: 67
Loc: Addison, IL
Reg: 05-28-10
01-03-18 05:49 AM - Post#2719857    
    In response to space66

If you are talking hydraulic. It won't make any difference. On a solid, run it hot, turn it off and set the #1 intake and exhaust and let it cool over night. Remeasure both set valves and repeat those numbers on the other 7 cylinders cold.



 
jktucker92 
Silver Supporting Member
Posts: 168
jktucker92
Reg: 02-05-17
01-03-18 08:21 AM - Post#2719866    
    In response to models916

I've done it both ways. They make deflectors that will make it less messy, but you still end up with some oil dripping down the side of the heads. With hydraulic lifters, I've always had good luck doing it with the engine on the engine stand at the end of a rebuild. As mentioned above, with hydraulic lifters the valve lash setting doesn't have to be very precise since the lifter will take care of a lot. The link above is the procedure I've used in the past and I can't remember having to redo valves after setting them cold on the engine stand, and I've probably done it 40 times over the years on a small block for either rebuilds or head replacement.



 
Gaspains 
"4th Year" Gold Supporting Member
Posts: 253
Gaspains
Loc: Mankato, MN
Reg: 11-23-09
01-04-18 05:54 AM - Post#2719949    
    In response to space66

Great link. Thanks for the info all.

I used to have a valve cover that I'd cut in half to contain the oil. Haven't seen it in years and not willing to cut another one up so the non-running procedure looks like the real deal.

Assuming I can pump up the hydraulics (should have mentioned in my first post the type) with a drill and adapter. I'd like to do the first start with lifters adjusted.

Again, thanks.

Kevin
1965 Impala SS Coupe
Regal Red with Black Interior
L74 327
M-20
3.31 One-wheel wonder, 12 bolt

65-66 FSCC #512


 
space66 
Contributor
Posts: 624
space66
Loc: montreal
Reg: 06-01-16
02-02-18 08:23 AM - Post#2723064    
    In response to Gaspains

this is an interesting method i never knew, something to try the next time...

*Hydraulic valve adjustment made easy - Your Engine Guy
https://www.youtube.com/watch?v=5EGlb_VpTAw

any body familiar with it?

1966 impala convertible 283*pg-396*th350


 
jktucker92 
Silver Supporting Member
Posts: 168
jktucker92
Reg: 02-05-17
02-02-18 11:21 AM - Post#2723088    
    In response to space66

Yes, that's the method I was taught in high school. It has always worked well for me, I've never had to re-adjust hydraulic lifters after initial startup using that method. I've rebuilt about 10 SBC's in the last 25 years, and never had an issue.



 
Gaspains 
"4th Year" Gold Supporting Member
Posts: 253
Gaspains
Loc: Mankato, MN
Reg: 11-23-09
02-03-18 06:38 AM - Post#2723176    
    In response to jktucker92

Excellent! I’m glad I hadn’t started this yet. It makes perfect sense to me.

The only thing that I may have to do different is spinning the push rod between the head and rocker arm rather than in the lifter galley as I have the intake on. I think it’s also important to prevent the socket from contacting the ball when adjusting to zero lash.

Thanks for sharing the link.

Kevin
1965 Impala SS Coupe
Regal Red with Black Interior
L74 327
M-20
3.31 One-wheel wonder, 12 bolt

65-66 FSCC #512


 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
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