BTW, though I used a tap to clean out carbon in the hole between #3 and #4, and that should be fine, EB replied to me thusly:
Quote
>The reason we use a thread chaser is a tap cuts 75% thread contact, at least
>most do while the bolt threads are 90%.
>
>The difference in pitch can remove metal so there is a small risk of
>stripping the threads out. Usually it is fine, I am just overly fussy since
>if I mess something up I can cause folks trouble.
>
>It should be fine.
>Ted

-Bill
'87 4Runner w/ '96 5VZ-FE, 'Red Chili II'
'97 Taco XtraCab 3RZ-FE, 'BlackBean'
TLCA # 13257, Rising Sun 4x4 Club Land Use Coordinator
"He who stops being better stops being good." -Oliver Cromwell