# ca18det valve adjust specs

**URL:** <https://forums.speedlife.net/t/ca18det-valve-adjust-specs/152401>\
**Category:** SON240sx Automotive\
**Created:** [March 29, 2010, 7:17pm UTC](https://forums.speedlife.net/t/ca18det-valve-adjust-specs/152401 "2010-03-29T19:17:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![schwiin\_27](https://avatars.discourse-cdn.com/v4/letter/s/ecb155/32.png) [@schwiin\_27](https://forums.speedlife.net/u/schwiin_27)\
**Post date:** [March 29, 2010, 7:17pm UTC](https://forums.speedlife.net/t/ca18det-valve-adjust-specs/152401/1 "2010-03-29T19:17:27Z")

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anyone know the clearances to adjust valves for an 89 s13 with a ca18det, doesnt seem to be in the fsm. i have to change the valve cover gaskets so i figured out while im in there i would go over the top end, never being done before during my time owning it.

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**Author:** ![Blue\_S13](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/blue_s13/32/5563_2.png) [@Blue\_S13](https://forums.speedlife.net/u/Blue_S13)\
**Post date:** [March 31, 2010, 8:27am UTC](https://forums.speedlife.net/t/ca18det-valve-adjust-specs/152401/2 "2010-03-31T08:27:28Z")

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Adjustments cannot be done as they are hydraulic lifters. If they don’t click while running or just a little at start-up its fine. If nothing sounds out of the ordinary or it runs good don’t mess around with them. They are a no-service part.