Valve adjustment screws.

[Frodge]

Where can a really nice fellow like me get a set of oem valve
Adjustment screws that are in good shape? Much appreciated.
Frodginald.

[bobinphx]

swap meets, junk yards, or....

I have had great luck heat treating the tips of new ones. Heat the tip to cherry red and then dunk it in a pail of salted water. Ive got a couple thousand miles on some I did that to. No real wear to the tips or the ends of the valves.

[Multi69s]

[Cusser]

[bobinphx]

Cusser, thank you for the opposing opinion. Time will tell which opinion is correct. I do appreciate what you are saying and applaud that you would say it.

[glutamodo]

Ugh, I rather agree with the comment above railing against that sort of home grown heat treating. Now, I have gone and refaced adjusters before with a little bit of time on the face of a disc sander (knowing well enough not to make their contact surface flat) but in short enough bursts not to ruin the stock metallurgy.
_________________
Andy T.


IMAGE NOTE: It has been noted that Chrome based browsers may have issues in displaying my vast image library, which use non-secure links and are on an FTP server. Images should still be viewable if the link is clicked though.
I do not know how to fix this. All I can say is it all works fine for me with what I use, Firefox.

[mark tucker]

personaly I would rather sand pappaer my asss that use oe type adjusters.....but I do understand how some people like that sort of stuff. if I had to use some and knew they were soft I would also heetreet them....and use lashcaps too...loose fitting lash caps not tight ones..and reworked rockers...and...oh never mind.

[Cusser]

[Glenn]

[goober]

This is what I've done.

If you have worn but OEM screws, they should be harden to about a Grade 8 hardness all the way through. If you have a lathe and an OEM screw in decent shape make a tool shaped to that radius (half). Cut the screw tip to that shape on your lathe. When the screw's in the rocker arm and rocking, you can almost judge the radius you need.

If you have a belt sander you can free-hand a pretty good radius if you take your time. Dip the screw frequently in water. Don't let the screw heat discolor.

I once had a set of aftermarket soft mild steel screws. I used some old Kasenit and case hardened the tips. I had mixed results. Wasn't too impressed with the life. (if you find some old Kasenit powder be careful, it's toxic)

The OEM screws are the best. I've re-radiused them several times and I've been using them for years.

[Tim Donahoe]

CB Performance has a new set of Rhino adjustment screws with nuts. I don’t know anything about them, but CB has a good reputation, so this set—for $24.00—maybe pretty good.

Tim
_________________
Let's do the Time Warp again!

Richard O'Brien

[Multi69s]

[mark tucker]

[Zundfolge1432]

Lighten up Francis

[bobinphx]

8k on my adjusters now. small amount of polishing has happened to the tips, no sign of wear on the valve tip. I have not had to adjust them at all(I do check the gap at every oil change) They are staying set, not wearing out, not wearing the valve tip and have not chipped or shattered. This motor is a 1500 based mystery motor and I am an old man driver, so the rpms seldom go over 4k.

Sure beats the first set that wore out of adjustment in under 500 miles.

all this being said, I do agree that home metallurgy may not be for everyone. I would also say that for high ramp and high lift cams or high rpms, this may not be a good idea.

bottom line is that its working for me and that's all I know.