Replace Valve Springs

[yeeha68]

I keep going back and forth with this, so I'll ask for other opinions. I'm replacing a broken spring and seal for one valve. These are fairly inexpensive and I could go ahead and replace all of them while I'm in there for preventative maintenance. Should I do it, or take the "if its not broken, don't fix it" approach?

Edited January 25, 2010 by yeeha68

[phillipj]

I'm certainly no engine builder but if it was me I would replace them all.. You'll never have a better opportunity ;) By the way I can't wait for your next update on your site..

:cheers:

[JFP in PA]

I keep going back and forth with this, so I'll ask for other opinions. I'm replacing a broken spring and seal for one valve. These are fairly inexpensive and I could go ahead and replace all of them while I'm in there for preventative maintenance. Should I do it, or take the "if its not broken, don't fix it" approach?

This is a no-brainer; if one has failed, others may follow (this spring did not fail without reason). If you replace one, that valve will probably have better spring pressure than the others will. You already have it apart; do you want to be doing this again in two months? I would do all new springs, retainers and retainer locks. I would also be sure to check installed heights as well as open and seat pressures for both the original and the replacements. Would also be a good time to check for guide wear, new seals and a freshened up valve job.............. Do it right and you’ll only do it once……..