# 1999 engine making a clanging sound

**URL:** <https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607>\
**Category:** Maintenance/Repairs\
**Tags:** toyota, camry\
**Created:** [February 21, 2018, 7:02pm UTC](https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607 "2018-02-21T19:02:48Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [February 22, 2018, 10:22pm UTC](https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607/21 "2018-02-22T22:22:41Z")

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I have seen 3 Toyota 3.0 V-6 engines with high mileage that were clanging due to the harmonic balancer keyway being hammered out due to excess play in the timing belt and it’s possible that the 4 cylinder could develop a similar problem. If the alternator bolt is turned a few degrees back and forth and play is visible between the pulley and crankshaft that’s your problem.

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**Author:** ![Shihan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shihan/32/4613_2.png) [@Shihan](https://community.cartalk.com/u/Shihan)\
**Post date:** [February 22, 2018, 10:33pm UTC](https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607/22 "2018-02-22T22:33:01Z")

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Listen to this

Roderick A. Senior

 ![|690x0](https://global.discourse-cdn.com/cartalk/original/2X/6/677f06bdf711468707faf594c72c7993f90d2513.png)

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**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\
**Post date:** [February 22, 2018, 11:49pm UTC](https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607/23 "2018-02-22T23:49:29Z")

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Check the valve clearances.

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [February 23, 2018, 12:22am UTC](https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607/24 "2018-02-23T00:22:33Z")

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I agree with @insightful about checking the valve lash . . . it sounds like it’s too loose

That said, adjusting valves on this engine is possible, but it’s not easy.

You measure the valve lash

Then you compare what you have, versus what you SHOULD have

Any that are out of spec requires removing the shim, measuring the shim thickness and making a calculation, to determine what shims you need to install, instead. And with all likelihood, wherever you go, they won’t have the shims in stock, and will need to order them

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [February 23, 2018, 2:38am UTC](https://community.cartalk.com/t/1999-engine-making-a-clanging-sound/112607/25 "2018-02-23T02:38:03Z")

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That does sound like a loose valve train.

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