# valve lash adjustment screws
**URL:** https://59plymouth.net/t/valve-lash-adjustment-screws/3948
**Category:** Tech Support
**Created:** [July 24, 2025, 9:35pm UTC](https://59plymouth.net/t/valve-lash-adjustment-screws/3948 "2025-07-24T21:35:09Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@eroomas](https://59plymouth.net/u/eroomas)
#### Post date: [July 24, 2025, 9:35pm UTC](https://59plymouth.net/t/valve-lash-adjustment-screws/3948/1 "2025-07-24T21:35:09Z")
Does anyone know off hand what valve lash adjustment screws should torque out at?
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### Author:  [@Faulkner](https://59plymouth.net/u/Faulkner)
#### Post date: [July 25, 2025, 2:51am UTC](https://59plymouth.net/t/valve-lash-adjustment-screws/3948/2 "2025-07-25T02:51:40Z")
You have a 318, correct, Andrew? The adjustment screws are self-locking - you just need to adjust the lash to the correct gap. Check the service manual, here:
> **[5758-Part-2\_Section-1\_Engine.pdf](https://www.59plymouth.net/59gallery/albums/userpics/10003/5758-Part-2_Section-1_Engine.pdf)**
>
> 32.56 MB
I think Dick Koch outlined a method for cold adjustment - I’ll try to find it.
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### Author:  [@Faulkner](https://59plymouth.net/u/Faulkner)
#### Post date: [July 25, 2025, 2:56am UTC](https://59plymouth.net/t/valve-lash-adjustment-screws/3948/3 "2025-07-25T02:56:09Z")
Ah! Here’s the article.
> [@VALVE TAPPET ADJUSTMENT 318 POLY.](http://59plymouth.net/t/valve-tappet-adjustment-318-poly/2903/1):
>
> Found a easy and simple way to adjust valve tappets. I call it the 90 degree method. First measure the diameter of the crankshaft pulley, divide that number by 4, starting at the timing mark on the pulley make a mark on the pulley every 90 degrees accordingly. Align the timing mark on the pulley at “0” with the distributor rotor pointing at the #1 cylinder. Adjust the tappets COLD, the intake is .010, the exhaust is .020. The #1 cylinder is at TDC and you adjust both tappets. You are going…