Valve Lash

[92Typhoon1679]

Ive just have a question about valve lash
ive read the books and the threads on this site and others

setting valve lash is the question?

what are the indication of too loose of a setting?
what are the indication of too tight of a setting?
how to set lash correctly????
is it better cold engine or hot engine when setting?

its a good question and i would like to know how to set correctly the first time and how i know its set correctly.

Ive seen people asking questions about setting valve lash and i think its a very important question so i though id ask the question.

 

[myclone]

Re: Valve Lash

Ive just have a question about valve lash
ive read the books and the threads on this site and others

setting valve lash is the question?

what are the indication of too loose of a setting?

Clicking/ticking noise from valve covers while engine running.

what are the indication of too tight of a setting?

Engine has a "miss" of varying degree (depends on how many rockers are too tight). Same affect as if you pulled a plug wire(s) off and started the engine.

how to set lash correctly????

Several different methods. Personally I like to set mine 1/2 to 1 full turn past zero lash with the engine running. Others like to do it by rotating the crank by hand and following the firing order...sorta.

is it better cold engine or hot engine when setting?

Hot.


Not to be a wise a$$ here but I did a search just using the word "lash" and came up with two pages of how to adjust the valve lash several diff ways by several different ppl. None the less any of the various ways accomplish the same thing so you can just pick one method you like and have at it. :2cents:

 

[QUICK STORM]

Re: Valve Lash

doesn't it get a little messy when setting lash with the engine running?

 

[Andreas]

Re: Valve Lash

Engine has a "miss" of varying degree (depends on how many rockers are too tight). Same affect as if you pulled a plug wire(s) off and started the engine.

Not hijacking the thread here but that was good info to read Myclone. I'm having some "miss" since I got my TY running again. I did the half turn after push rod stops to roll easy between you fingers. But I guess I messed up somewhere.

 

[myclone]

Re: Valve Lash

doesn't it get a little messy when setting lash with the engine running?

Not really unless you try to adjust them before the ECM has backed the idle down like it does once its at operating temprature. Also, cut a card board dam that will fit inside the vavle cover mounting rails on the heads (the card board separator in gasket kits works good). Put the dam between the valve springs and the lower valve cover flange to stop the splash.

 

[QUICK STORM]

Re: Valve Lash

Not really unless you try to adjust them before the ECM has backed the idle down like it does once its at operating temprature. Also, cut a card board dam that will fit inside the vavle cover mounting rails on the heads (the card board separator in gasket kits works good). Put the dam between the valve springs and the lower valve cover flange to stop the splash.

cool